I had an iPhone 13 mini that was sitting bricked and unusable. The device would power on and display a small message at the bottom of the screen which said “apkudo device test in progress.” I tried all kinds of hand gestures and other various tricks to get this phone to unlock. Nothing worked, but the fix turned out to be simple. All this really took was a simple software update and restore. I connected the device to my MacBook to run update, and restore. Once that was complete I had a cute operable iphone 13 mini running iOS 26.