As far as i know no. Shouldn't be like flashing a rom only update so info should be ok but I'd backup anything you can to microsd just to be safe its always a good idea.Ahh ok I were wrong! I unzipped the file and entered in the rck recovery! Tonight I'll try as you said.
Double check: I'll not loose all my data right? It will be a normal update like if my bootloader was locked?
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