wii u gamepad factory test (proto?) firmware image dump
source: https://www.ebay.com/itm/405204224990
mirror: http://web.archive.org/web/20240920204350/https://www.ebay.com/itm/405204224990
listed by ebay user gaminggoodies_6
"Prototype (X11) WiiU Gamepad with factory test software"
source: https://www.ebay.com/itm/166848537298
mirror: http://web.archive.org/web/20240920205744/https://www.ebay.com/itm/166848537298
listed by ebay user whitecar12345
source: https://www.ebay.ca/itm/166566361641
mirror: http://web.archive.org/web/20240920215246/https://www.ebay.ca/itm/166566361641
most of the images are dead now, but using Highly Advanced Hackerman Techniques, i saw a few that i was able to archive... only two out of four images, images #1 and #3 respectively, but thankfully image #3 shows the relevant test menu. also, yes these are the highest resolution versions i could get, trust me i checked.
"Image 1 of 4" source: http://web.archive.org/web/20240920215055/https://i.ebayimg.com/images/g/QiAAAOSwWm9lsePB/s-l400.jpg
"Image 3 of 4" source: http://web.archive.org/web/20240920211535/https://i.ebayimg.com/images/g/QiEAAOSwWm9lsePC/s-l960.webp
sold by ebay user re-toro_sushi_one-piece
described as follows: "This is a factory test gamepad ..." "This is a prototype of the X11 that was actually used for performance evaluation at the Foxconn factory. A pre-finalize [sic] test menu is installed ..."
source: https://www.ebay.com/itm/166777233237
mirror: http://web.archive.org/web/20240920223516/https://www.ebay.com/itm/166777233237
sold by ebay user re-toro_sushi_one-piece
described as follows: "This is a factory test gamepad ..." "This is an X11 prototype that was actually used for performance evaluation in the Foxconn factory. The pre-finalize [sic] test menu is installed ..." "The packaging is from the factory, and the sheet used for the evaluation check is included. ..."
source: https://x.com/PaulFelixKelly/status/1745260773897818353
post by user PaulFelixKelly on Twitter / X
"Nintendo Wii U Tablet still in factory mode / Test Mode from the factory as these boards might have had defects and were binned before the normal software could be loaded onto them."
source: https://www.reddit.com/r/wiiu/comments/14vsx0y/wii_u_gamepad_factory_mode/
posted by user FunkyGamer26
source: https://consolevariations.com/collectibles/nintendo-wii-u-prototype-testpad
alt source: https://consolevariations.com/profile/LinusDevTips/submissions
images posted by user LinusDevTips
title: "Nintendo Wii U Prototype Testpad"; description: "Prototype testpad used for validation testing."
source: https://www.neogaf.com/threads/wii-u-release-day-thread.499806/page-123#post-44484322