3uTools-Forum

Hello Game Gad and all,

you have got Nand problem, not stability of power supply / short circuit in the nand power rail or nand can't be read/wright - I/O driver internal fault.

hi,
this is not possible. Look at sim tray or back cover of housing (if that's 6, 6+).

hello Nick77 and all, according to my experience, your XR has been water flooded before . Install process of new version of system software uses different hardware resources. Often, running damaged circuits causes restarts or system boot loops. Find good repair shop in your loco, opening a phone and...

hello Chand963 and all,

no, 20'th % is Nand access process. If stuck on it you have (probably) hardware issue (Nand power/data short circuit or internal Nand problem).

hello Atm007 and all,

can you paste a log of update here? There is your answer.

hello,
why cover board number missing in 3utools (XR)?
Is it next "special surprise" from Apple?