Try simple things first like hard reset, put off battery press power button for 20sec, install battery again and try to turn on the device. If problem exist then seems you made a mother board damage, maybe you removed a small part like capacitor or filter. You need to see schematic and follow backlight line
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Try simple things first like hard reset, put off battery press power button for 20sec, install battery again and try to turn on the device. If problem exist then seems you made a mother board damage, maybe you removed a small part like capacitor or filter. You need to see schematic and compare with your motherbowrd
Try simple things first like hardest, put off battery press power button for 20sec, install battery again and try to turn on the device. If problem exist then seems that you made a mother oard damage, maybe you removed a small part like capacitor or filter. You need to see schematic and follow backlight line
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Try simple things first like hard reset, put off battery press power button for 20sec, install battery again and try to turn on the device. If problem exist then seems you made a mother board damage, maybe you removed a small part like capacitor or filter. You need to see schematic and follow backlight line
Try simple things first like hardest, put off battery press power button for 20sec, install battery again and try to turn on the device. If problem exist then seems that you made a mother oard damage, maybe you removed a small part like capacitor or filter. You need to see schematic and follow backlight line