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I had my mate 10 pro updated to 8.0.0.131 3 days ago but found that the battery drains a lot during standby time (idle for 8 hours, drains about 30%). Before the update it only drains 2 - 5%..
However after I enable flight mode then the battery usage become normal.. I tried both hard reset and factory reset but it remain the same problem.
Anyone have the same issue? or how do I downgrade the firmware? thanks.
Might be caused by apps. You might want to do factory reset