After I did a reset on my iPad mini, it got an activation error, tried everything but still wouldn’t work, connected to iTunes, restore and update, remove the device from iCloud and still fails. I went to a repair shop and the technician said NAND chip is needed to be replaced, I’m kind of doubting because the iPad still turns on, I can set the language and location but during activation it fails, any idea how to fix this %#*@ thing?