My z ultra have loop boot in not charging but normal state in charging.
I tried install to flashtool firmware all versions.
- Boot loop in not charging : all firmwares.
I think battery problem.
- bootloader unlock and relock / ftf flashed no change
- original kernel : no change
- Doom and other custum kernels : no change
- [GUIDE] Z Ultra and Z1 HARD BRICK RECOVERY and flash ftf : no change
* no change means boot loop in not charging.
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