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REFERENCE Samsung A21S NO DISPLAY/ NO BACKLIGHT

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andrew182215

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Joined
Feb 23, 2021
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Mga dol for reference.. No display / No backlight

Ayaw mabuhay yung binigay ni tomer.

1st: Check basic saksak schematic USB Nagkakarga
2nd: Baklas unit check battery voltage (Drain battery) Shocktest
3rd: May karga na battery, Power On vabrate lang.
4th : Use flash light. Ayun kita may Logo.
5th: Baklas unit gmit tester kita s likod saralin. Semi shorted yung Caps

Replace yung Caps at yung Coil., Ayun may display na.
1679238080804.png

Thanks..sana makatulong.
 
dol pwedi ba kahit anong model ng coil?merun kc ako tanggap wala ako board mkauhanan na a21s
 
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