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What Cause the iPad LCD Screen Backlight dim and How to Fix it

This is a problem our customers complain about most in our shop. Some new replaced LCD screens are dim when we turn on the iPad. The same problem has happened on iPhone screens before, and we consume the issue to be the backlight circuit problem. How could this happen to the LCD screens? Can this problem be fixed? Here we would like to discuss it with you here.

Firstly, we have to know something about an iPad or iPhone LCD screen’s composition. The LCD screen is totally consists of eight layers, but only the three layers related closely to the image forming and animation on the screen. The backlight is one of these three layers. It is an LED light panel that allows the phone screen to be seen in the dark. When this light panel fails for lighting up, you will see a very dark screen and dim images, which can only seem under strong light. The reasons why this happened are complicated. For one side, some of the low-quality LCD screens are manufactured from third-party factories. These high copy screens are not matched with the original screens on the electrical characteristics. The high copy screen requires much more electric power loss than the original screen. When the backlight circuit is overloaded, it would be damaged and not work. On the other side, damages to the iPhone or iPad screens may cause the iPad screen backlight panel to fail for lighting up after iPad LCD screen replacement.

Next, fixing the backlight circuit issue can be difficult and risky. It requires someone professional on Apple mobile device repair experience on it. Since the backlight failed for lightening could be more than one reason, the repair solutions consist of a simple filter replacement, another can require replacing the whole circuit or adding jumper wires to bypass damaged tracks. Specifics of the operation may refer to YouTube videos or google. We advise you not to try without professional guidance because these solutions are risky. Inexperienced operations may cause irreversible damages to the new screen. You may check our iPad repair guidance about iPad mini 4 screen replacement video if you have interests.

Finally, we sincerely advise our iPad and iPhone users don’t trust any “parts swapping fixing everything” from a third-party repair shop. Choose the original new LCD screens or high-quality level screens for replacement if you have to swap the original screens. All in all, we should take action for our iPad screen protection or else it will cost us a lot on repair. Besides, you may come to Etrade Supply online store for our new iPad swappable screen. Here we got iPad mini 4 LCD screen and digitizer and small parts as well. You are free to contact us if you find any replacement parts you have interests. We are glad here for help.

#iPad repair #iPad screen repair #iPad LCD screen issue

How to replace the iPad Pro 10.5 Charging Port with flex cable

The iPad Pro 10.5’s charging port part is consists of the charging port and the flex ribbon with connector. When your iPad is damaged on the charging port and cannot be charging, you may consider replacing the charging port inside. Here Etrade Supply would like to show you how to tear down the iPad Pro 10.5 to replace the charging port module. Check the process below.

Firstly, we need to tear down the iPad screen. Power off the iPad, then place it onto the separation heating station for heating the screen with 65℃ in 2-3 minutes. Use suction cup and ultra-thin plastic plectrum to slice and separate the screen from the iPad. Unbolt the screws and take off the metal shield for fixing the iPad 10.5 battery connector, then unplug the battery cable with spudger. Unbolt the screws and take off the metal panel for fixing the screen flex cables. Disconnect the screen cables so that the screen can be separated entirely. Here we can see the charging port on the bottom of the iPad. Unbolt the two screws for fixing the charging port, then use a hot air gun to blow on the charging port cable for a while. Use a metal prying tool to pry and take off the charging port module slowly for the iPad. Place the new one into the iPad and plug the cable. Fixing it with the two screws back, make sure it is closely assembled. Connect the screen flex cable back and fixing the cables with a metal panel and screws. Connect the battery cable. Assemble the screen back and make sure it is strictly assembled with the iPad frame. Turn on the iPad and test the new replaced iPad 10.5 charging port. Charging the iPad to see if it is normal to finish the repair process.

As the final suggestion, we should not tear down our iPad by ourselves if we don’t know anything about iPad repair. Go to the Apple authority service center if you face this problem. The iPad screen is easy to be broken, just be careful with it. Anyway, you may also check some iPad 10.5 parts like iPad 10.5 LCD screen and small parts in our shop if you are interested. Leave your comments if you have questions about iPad repair, we are glad to discuss with you.

#iPad repair #iPad 10.5 repair #iPad charging port replace

Easy Way to Replace the Huawei Mate20 Pro Back Cover

The Huawei Mate20’s back cover is hard crystal material. It is easy to break if we crashed the phone unconsciously while using it. We will need to replace the back housing if it is crushed and broken. Here Etrade Supply shows you how to replace your Huawei Mate20 back cover yourself at home in simple steps.

Always turn off the device as the first step. Eject and take out the SIM card tray. Use hot air gun to blow on the back cover with 80℃ for 2-3 minutes. Afterward, use suction cup to pull the back cover. Hard plastic plectrum to insert the gap and slice around the Huawei Mate20 Pro back cover. Gently pry and flip it over to take it off from the phone. Clear the reminding adhesive sticker on the frame with tweezers after the broken back cover is removed. Apply a new Huawei Mate20 Pro adhesive sticker on the new back cover, place the new cover onto the phone and make sure it is in the exact position. Slightly press the cover around the edge to make sure it is closely sealed up. Insert the SIM card tray back. Turn on the phone, the whole process is finished.

The whole procedure is simple, but we need to be careful and patient. You may also go to the repair shop if you are not confident about yourself. There are lots of low-quality high copy Huawei back covers in the market, just be careful with them. You may come to Etrade Supply if you are looking for a new rear cover for your Huawei phone. We offer other Huawei Mate series parts such as Huawei Mate20 LCD screen and digitizer. Just contact us if you are interested.

#Huawei Mate20 repair #Huawei Mate20 back cover replace

Huawei Nova 3 Disassembly Teardown – What Components are Inside?

The Huawei Nova 3 features of beautiful outlook color slime body, large full-screen coverage, and great rear cameras. It is a great choice for most mobile users because Huawei Nova 3 has great functions and also the price is acceptable. The Huawei Nova 3 inside structure and component parts mainly contain the screen, a middle frame, middle frame, and some flexes and small parts. Here we would show you how to tear down this mobile device and see what’s inside.

1. Tear down the back housing

Turn off the phone firstly, eject and take out the SIM card tray afterwards. Hot air gun to blow on the rear battery door to soften the frame adhesive glue for easy separation. Use suction cup and ultra-thin metal sheet to slice around and separate the back battery door. The fingerprint sensor is installed on the rear battery door, it is no need to take it down because the flex is tiny and easy to be broken. Unbolt the two screws and the small metal panel, disconnect the flex cable so that the Huawei Nova 3 rear battery door can be entirely separated.

2. Take down the motherboard and other small parts

Disconnect the battery cable first, then unplug the mainboard flex cable and the signal wire port from the motherboard. Unbolt the six screws and take off the metal for fixing the flex cables on the mainboard. Disconnect the screen flex cable and the rear camera cable, take down the rear camera with tweezers from the middle frame. Disconnect the two front cameras on the mainboard and take off them. Take down the motherboard carefully from the middle frame. Loosen and take off the eight screws for fixing the speaker, take off the small metal shield for fixing the mainboard. Disconnect the mainboard and the signal wire port from the mainboard so that we can entirely take the main board off. Take off the speaker on the bottom and the Huawei Nova 3 charging port PCB board. Take off the vibration motor and the battery from the middle frame at last.

3. Separate the screen and the middle frame

The Huawei Nova 3 Screen is fragile, we need to be careful with it. Hot air gun blows on it and Slice around the screen with ultra-thin steel sheet to separate it slowly. Pry and flip over the screen apart from the middle frame carefully to separate it. Now the whole Huawei Nova 3 teardown process is completed. Just pay attention to the teardown parts and screws, don’t mess them up or lose any of them.

As the final suggestion, we should not try this on our Huawei phone if we are not familiar with mobile phone repair. The screen and the flex are easy to break, we should be careful with it. Moreover, you may check some Huawei replacement parts such as Huawei Mate20 LCD screen and digitizer on our website if you are running a repair shop. Leave your comments if you have any questions or contact us if you are looking for Huawei mobile phone parts, we are glad to help you.

#Huawei Nova 3 repair #Huawei Nova 3 teardown

Korean Rumor: Huawei P50 Series will be Arriving with Samsung and LG’s Screen in 2021

According to the Korea media The Elec, Huawei is going to release the newest mobile phone P series at the beginning of 2021. The Huawei P50 features of a powerful display screen, which is sponsored by Samsung and LG.

More details about this new Huawei P50 model still have not come yet, but Samsung and LG have been busing supplying the OLED display screens. Rumors also leaks that the Huawei P50 will perform with Kirin 9000 CPU core chip. Besides, the newest Huawei Mate series will launch following the P50 series’ step. Early news reports that Huawei are planning to offer 4400 million smartphones to the mobile market, which is closely to Samsung’s Galaxy S series and Note series’ on 4450 million in 2019. Huawei has become the only one mobile phone manufacturer who has its own developed CPU processor in China, just like Samsung and Apple.

The reality about this news are still being questioned, but Huawei has made the great improvement on its mobile technology. We are looking forward the coming of this new Huawei model. For more about mobile phone news of 2021, please follow us on Etrade Supply blog. Besides, you may go to our shop for Huawei swappable parts, repair tools or components if you are interested. Here we have Huawei P30 LCD screen and digitizer, Huawei rear cameras and other parts. Contact us if you have interests.

#Huawei P50 #Huawei News

How to Tear Down the Huawei P30 Lite to Replace the Loudspeaker

Huawei P30’s loudspeaker is on the bottom side of the phone body. This is a replaceable part that can be taken off by tearing down the battery door. Here Etrade Supply will demonstrate the process on how to tear down the Huawei P30 Pro for loudspeaker replacement. Hope this could be useful to you if you like smartphone repair.

1. Tear down the battery door and remove the wireless charging coil

Power off the phone firstly. Eject and take out the SIM card tray. Use hot air gun to blow the battery door edge and each corner with 40℃. Separate and take off the battery door with suction cup pulling and ultra-thin plastic sheet slicing. Gently pry and remove the battery door. Tear off the battery door adhesive glue on the frame, unbolt and remove the ten screws for fixing the wireless charger. Pry and take off the wireless charger module from the phone.

2. Take down the loudspeaker and replace the new one

Disconnect the battery flex cable first, then loosen the seven screws on the bottom. Remove the metal panel for fixing the charging port PCB board. Disconnect the loudspeaker flex cable, and unplug the signal wire cable from the loudspeaker module. Pry and take off the loudspeaker from the phone with tweezers. Place the new Huawei P30 Lite loudspeaker onto the original place. Connect the flex cable and the signal wire port on it. Place the metal shield and fix the loudspeaker with the seven screws. Connect the battery flex cable back, install the wireless charger, and fix it with the ten screws on it.

3. Test the new loudspeaker and assemble the phone

Turn on the phone and test the new loudspeaker function. Try to play music or video and volume up to check if it is OK. Turn off the phone again. Clear off the reminding adhesive glue on the battery door. Apply a new batter door adhesive tape on the frame. Make sure the position is right, tear off the PVC protector, and assemble the Huawei P30 Lite battery door back on to the phone. Slightly press to make sure it is closely sealed. Insert the SIM card tray back. All process is finished.

The process demonstrated above is about how to replace Huawei P30 Lite loudspeaker, it also works on other Huawei P30 series. The Huawei P30 battery door is easy to be broken and it requires our patience and carefulness during the procedure. Anyway, you may leave your message to us if you have questions about Huawei repair, or go to Etade Supply for Huawei P30 series such as Huawei P30 Pro parts and components if you are interested.

#Huawei P30 Lite repair #Huawei P30 Lite loudspeaker

How to Tear Down Huawei P30 Pro for Rear Cameras Replacement

The Huawei P30 Pro rear-facing camera module is a replaceable part. When our Huawei P30 phone is crashed, water damaged, and the cameras are broken, we need to replace the rear camera module. This is the repair process presentation of how to replace the Huawei P30 Pro rear-facing cameras we would like to show you below. Hope this would be useful to you if you are interested in smartphone repair. 1. Tear down the battery door and take off the wireless charging coil

Turn off the phone first. Use hot air gun to blow on the back panel edge and each corner. Paste the suction cup on the battery door, slowly pull it. Use hard plastic plectrum to slice around and separate the battery door from the phone. Take it off after it is totally separated. Unbolt and remove the ten screws for fixing the wireless charging coil. Tear off the remaining frame adhesive glue, pry and take the wireless charging coil off.

2. Take down the broken rear camera module and replace with the new one

Disconnect the battery flex cable first to avoid short-circuit damage to other components. The Huawei P30 Pro rear camera module is consists of two parts. Disconnect the under part camera flex cable and take it off the phone. Remove the rubber protector on the rear camera with tweezers, take off the small metal shield for fixing the flex cable and then disconnect the camera flex cables. Take off another camera model from the phone. Place the new Huawei P30 Pro rear-facing camera module onto the phone. Just be careful and don’t leave any dust or dirt, fingerprint on the camera lens. Connect the flex cable and fix the cable with the small metal shield. Place the rubber protector back. Install another camera module back, too.

3. Test the new cameras’ function and assemble the phone

Connect the battery flex cable firstly. Install the wireless charger chip back and fasten the ten screws. Turn on the phone and open the camera to check the new replaced camera’s function. Make sure it is working all normally. Turn off the phone again. Tear off and clean out the remaining adhesive on the Huawei P30 Pro battery door. Apply the new frame adhesive tape on the frame, make sure it is in the exact position. Assemble the battery door back to the phone, make sure it is closely attached to the back frame. All process is finished.

The whole steps above are demonstrated by our professional repair team. It will take you a longer time if you are not familiar with Huawei phone repair. Also, we need to be careful and patient during the repair process. Finally, we recommend you our new Huawei P30 LCD display screen and digitizer, as well as some replacement parts if you are running a repair shop. Come to Etrade Supply if you are looking for smartphone parts.

#Huawei P30 repair #Huawei P30 camera replace

Full Process Presentation on Samsung Galaxy S20 Teardown

The Samsung S20 internal structure mainly contains a display screen, middle frame and some small parts. To tear down the Samsung S20, we need to be careful and patient. The first step we would do is take off the battery door, and then off the wireless charging coil. After that we may take off the inside parts which are install on the middle frame. We can disassemble the display screen with middle frame at last and finish the process. Let’s see the details presented below:

1. Tear down the battery door and wireless charging port

Power off the phone, eject and take out the SIM card tray. Use hot air gun to blow on the back battery door around the edge. Use suction cup to pull and ultra-thin plastic sheet to slice and separate the battery door. Take off the batter door and then we can see the wireless charging coil on the top. Unbolt the 15 Phillips screws for fixing the charging coil, then we are able to pry and take off the wireless charging coil with steel pry tool from the Samsung phone.

2. Take off the camera module and other small parts

After the charging coil is removed, we can see the flex cable ribbons. Disconnect the battery flex cable firstly. Pry and remove the antenna bracket with spudger on the upside of the phone. After that, we can remove the speaker bracket on the bottom in the same way. Pry and take off the SUB main flex ribbon and antenna flex for connecting the charging port board and mainboard. Unplug the display flex cable. Loosen the screws for fixing the mainboard, and disconnect the front facing camera flex cable. Use spudger to pry and take off the mainboard from the phone. The rear-facing camera module is combined on the mainboard, we can separate the rear cameras form the board. Unbolt the three Phillips screws and take off the Samsung S20 charging port PCB board with spudger. Hot air gun blows and gently pry off the ear speaker from the middle frame.

3. Tear down the battery from the middle frame

After the small parts are taken off from the display, here we can tear down the battery and separate the display screen. Add some battery sticker melted glue and pry the battery off from the middle frame with steel prying tool. Hot air gun blow on the display screen and use ultra-thin sheet to slice and separate the Samsung S20 display screen and digitizer from the frame. All teardown process for Samsung S20 is over.

The whole teardown process will be a little complicated. We suggest you not try if you are not familiar with Samsung S20 repair. The flex ribbons are easy to break, just be care while unplugging. Besides, you may leave comments or email to us if you need any Samsung S20 parts for replacement. Come to Etrade Supply if you are interested in Samsung mobile phone repair.

#Samsung S20 repair #Samsung S20 teardown

How to Change an iPhone 11 to iPhone 12 by Replacing the Back Housing

The iPhone 12 is launching on the phone market this October. Although it is a time we still have to wait to see this new iPhone module in the flagship store, some of the third-party iPhone 12 back housing has been manufactured. Based on this, we are trying to modify a new iPhone 12 phone by replacing the iPhone 11 parts in the back housing. Let’s check the specific steps below.

1. Tear down the iPhone 11 and take off all the inside parts and components

Unbolt the two screws on the button and use a hot air gun to blow on the iPhone 11 display. Use a suction cup and an ultra-thin plastic sheet to slice and separate the display. Flip over the display after it is separated, unbolt the screws and take off the metal shield for fixing the display flex cables. Disconnect and take down the display from the iPhone 11. Take off the taptic engine and the loudspeaker first, then the SIM card tray slot, eject and take out the SIM card beforehand. Disconnect and take off the battery from the iPhone after that. Unbolt the screws and pry out to take off the charging port connector flex, then disconnect and take off the rear-facing cameras and front-facing camera module. Takedown the logic board and bottom flex as well. Take off all the side keys and flex, and the power button flex at last.

2. Assemble all the iPhone 11 parts and components to the iPhone 12 back housing

After all the iPhone 11 inside parts are taken off, here we need to assemble them to the iPhone 12 back housing. Apply the wireless charging coil first on the back housing. Assemble the side key buttons, tighten the screws, and the small metal shield to fix them. Install the dust-proof into the loudspeaker, and then assemble the power button flex. Install the Bluetooth flex, the logic board, and the iPhone 11 rear-facing camera with flex cable onto the back housing, connect the flex cables. Assemble the charging port flex and tighten the screws for fixing it. Install the taptic engine and loudspeaker, connect the flex cables, and fix the cable with a metal shield. Install the SIM card slot and fasten the screws, then install the battery. Don’t forget to past the battery sticker tape on it.

3. Install the iPhone 11 display, turn on the iPhone and test the functions

After all the inside parts are installed, we need to assemble the iPhone 11 display screen on to the iPhone. Apply the water-proof frame sticker on the back housing. Connect the flex cables, place the metal shield, and tighten the screws for fixing it. Insert the SIM card tray into the phone. Assemble the display and make sure it is tightly sealed on the back housing. Turn on the phone and test the functions, such as the screen sensitiveness, the cameras, the Bluetooth connection, the auto-brightness function, the face ID, etc. Make sure all the functions are normal.

There is something we have to notice during the process. Some of the iPhone 11 parts and screws are tiny, we need to be careful about classification. Don’t mess them up or miss any part. The flex is easy to break, just be careful while tearing down. In the end, it is recommended to go to Etrade Supply for iPhone 11 replacement parts if you are interested in our modification test. You may leave us a message if you have questions about our products.

#iPhone 11 parts #iPhone 12 back housing

How to Fix the iPhone Incoming Calls not Showed on Sleep Mode

The iPhone incoming calls not show when on sleep mode. This issue exists because of the faulty signal baseband component on the logic board. The normal repair solution is taking out the logic board, checking the baseband, and replacing the faulty component. The process would be difficult and complex. Here we can connect a wire from the baseband wake signal point to the WiFi wake signal point to borrow the signal so that the problem would be solved. Check the detailed steps below.

1. Tear down the iPhone screen and take off the logic board

Hot air gun blow on the display, unbolt and take off the two screws on the bottom. Slice and separate the display screen. Disconnect the display flex cables and the battery flex cable, take off the display. Eject and take out the SIM card. Snap and remove the screws, take off the metal panel. Take out the motherboard carefully with tweezers. Fix the motherboard on the PCB motherboard holder. Use a hot air gun to blow on the motherboard and tear off the heat-resistant tape on the back slowly.

2. Confirm the signal points and solid tin wire to connect the points

From the Sitemap software on the computer, we can see all the component location and signal points. Confirm the baseband wake signal point location and the WiFi wake signal point location on the software, and then confirm the points on the motherboard. Scratch off the insulating coat from the two points, paste some solder glue on the two points. Solder a tin wire to connect the two points, then coat the wire with a UV solder mask.

3. Install the logic board back to the iPhone and assemble the iPhone

Take off the motherboard from the PCB board after the solder is solidified. Install the motherboard to the iPhone. Connect the iPhone X display screen with flex cables and the battery cable. Insert the SIM card back into the iPhone. Turn on the iPhone and try to call the numbers with another phone. The incoming calls show when the iPhone is on sleep mode. The repair procedure is successful. Turn off the iPhone again. Fix the metal panel and tighten the screws back. Assemble the iPhone. All process is completed.

The process above is fast and efficient to solve the iPhone incoming calls not showing on the sleep mode problem. We don’t have to tear down the logic board and check the PMU and baseband CPU. This has saved us a lot of time and work. As a premise, we need to know how to tear down the iPhone X series and replace the iPhone X parts well. Stick on the Etrade Supply blog and you will learn much about iPhone repair.

#iPhone repair tips #iPhone X repair

How to Replace the Samsung S20 Charging Port PCB Board

The Samsung Galaxy S20 charging port is combined in a module of PCB board. It can be swappable if the charging port is broken. To replace the charging port PCB board, we have to tear down the back housing, take off the wireless charging port, and the loudspeaker bracket as well. Here are the specific steps Etrade Supply would like to show you blow.

1. Tear down the Samsung S20 back housing and take off the wireless charging coil

Firstly, we need to tear down the back housing. Power off the phone and take out the SIM card tray. Use a hot air gun to blow on the edge and corners of the back housing. Use a suction cup to pull and an ultra-thin plastic panel to slice and separate the back housing. Flip and remove it away after it is separated. Unbolt the eleven screws for fixing the wireless charging coil, disconnect the BTB interface cable. Pry and take off the charging coil with a steel prying tool. Just be careful and don’t break the flex.

2. Take off the bottom loudspeaker bracket and replace the charging port PCB board

Loosen the five screws for fixing the bottom loudspeaker bracket. Take off the bracket slowly. Disconnect the battery flex cable, the SUB mother board flex and the antenna flex with a spudger. Take off the flexes from the phone. Undo the five screws for fixing the Samsung S20 charging port PCB board, then we are able to take off the board. Use the steel prying tool to pry out and take off the charging port PCB board. Install the new PCB board into the phone, fixing it with the five screws.

3. Assemble the Samsung S20 phone and test the new replaced charging port

Connect the SUB mainboard flex and the antenna flex back. Assemble the bottom loudspeaker bracket back, and fix it with the five screws. Connect the battery flex cable after that. Install the wireless charging coil back and fixing it with the eleven screws. Assemble the back housing to the phone. Gently press on the back to seal up the phone. Insert the Samsung S20 SIM card tray back. Turn on the phone and plug the USB charger to check if the charging port is normal.

The whole process above may be a little complicated for a new repair beginner. Besides, we should be careful on slicing and tearing down the back housing because it is easy to be broken. There are many flex cables inside, don’t misconnect the cables. What’s more, Etrade Supply offers new replacement parts for Samsung Galaxy S20 repair. Come to our online store if you are looking for Samsung swappable parts.

Article resources from Etrade Supply Blog of: How to Replace Samsung S20 Charging Port PCB Board

#Samsung S20 repair #Samsung S20 charging port replace

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How to Fix the iPhone 11 Face ID Issue by Replacing the Dot Projector Flex

Sometimes our iPhone 11 face ID keeps failing for recognition, which keeps reminding us to move the iPhone higher all the time. Although we have reset every setting on our iPhone, this issue still exists and we don’t why. This might be the problem of the dot projector flex of the Face ID module. Here we show you a repair case about how to fix the iPhone 11 face ID issue by replacing the damaged dot projector flex.

1. Tear down the iPhone and take out the face ID module

Unbolt the two pentalobe screws on the bottom. Slice and pry up the display screen, then loosen the screws and remove the metal shield for fixing the display flex cables. Disconnect the flex cables and separate the display screen completely afterward. Here we can see the face ID module in the upside, which is combined with the two front cameras. Apply pieces of heatproof protector film on the cameras in case of damaging the cameras. Use a steel pry tool and tweezers to take down the face ID module.

2. Separate the dot projector flex and record the data with JC Pro 1000S programmer

Connect the face ID cameras module to the JC Pro 1000S programmer. Back up the data to the programmer. Unplug the flex connector and connect a new dot projector flex to the programmer after that. Copy the data to the new flex. Install and connect the face ID cameras module back to the iPhone for testing. Power on the iPhone if no “Unable to activate Face ID on this iPhone” shows, means the dot projector flex data is successfully backup.

3. Separate the dot projector from the face ID module and take off the disk

Firstly, tear off the heat-resistant sticker from the Face ID module. Grind the metal shield and heat up with a hot air gun to separate remove the shield from the model. Continue to heat up on the dot projector flex until it is separated from the model with a prying tool. Hot air blowing on the flex to separate the disk from it.

4. Short connect the power supply diode on the disk and install it on the new dot projector flex

Plate tin on the new dot projector flex, and clean the flex with PCB cleaner. Separate the dot projector from the module. Remove the short-circuited diode from the disk under hot air gun blowing. Plate tin on the diode position, and apply the disk on to the new dot projector flex under hot air gun blowing. Connect the flex to the JC Pro programmer and test if it is normal. Assemble the flex to the iPhone 11 integrated front facing cameras module with 460 glue, make sure it is on the exact position.

5. Install the new dot projector flex on the Face ID module, and install the module back to iPhone

Connect the face ID module to the iPhone and test the face ID function. Go to Settings >> Face ID & Passcode and set up the face ID. Here we can see the face ID function is normal. Try to turn off the screen and unlock the iPhone with face ID after it is set up successfully. Face ID is normal, the issue is fixed. Reassemble the iPhone 11 display screen and digitizer, all procedure is finished.

The iPhone face ID recognition problem can be many reasons, we kindly advise our users to check out the reason. Also, you may come to Etrade Supply for iPhone 11 replacement parts for wholesale if you are looking for iPhone parts for repair. You may also contact us if you have questions about iPhone repair. We are glad to help.