Quote:
Originally Posted by hius07
It is unknown whether 5.12.1 allows downgrading.
The risk seems to be as usual as installing factory firmware.
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No luck. Tried 5.5.0 and 5.10.2. 5.10.2 said invalid update file. 5.5.0 just didn't work either from settings or after a reboot. Staying in airplane mode.