I upgraded OTA my C4 5303 to android 6 (MM) and when it started, the screen backlight was dead. The phone is completely functional with the new software (all functions, diagnostics, etc.) but no matter what setting you adjust in relevance with the screen light, has no difference. Really, everything went perfect with the upgrade, everything is working perfectly, EXCEPT the backlight. We need a patch ASAP! Do you have any suggestions?
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