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REFERENCE Samsung A21S NO DISPLAY/ NO BACKLIGHT

andrew182215

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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.
 
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