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PREMIUM Samsung A20s No Display.. Fixed!!!!

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activa2r

activa2r

Administrator
Staff member
Joined
Oct 30, 2022
Messages
714
2 klase no display..

una no display dahil walang lights pero na nakikita mo display pag nag flash light ka
2nd no display as black screen talaga..

ito ngayon ang tanggap ko from co tech
no display as black screen..

disassembly phone at diode mode sa fpc..
at un nga shorted to ground ang LCD VSN
dapat may 5-6v output fpc nya..

Untitled2.png

connected sya sa charging ic..

Untitled.png


kung makikita nyo ung resistor nilagyan ko mark..
cut natin connection para malaman kung ung ground sa fpc na side
or sa charging ic..

Capture0.PNG

ung ginawa ko pina tagilid ko lng

IMG_20230721_175207.jpg

at confirmed ung short papuntang fpc ginamitan ko thermal cam
at walang uminit :D :D :D

Capture9.PNG

after inject 1v nawala short hahaha
wala akong ginalaw na pyesa :D:D:D
binalik ko resistor sa original position

IMG_20230721_173402.jpg

sabay test..

IMG_20230721_170143.jpg

and done....

post ko ito ilang beses na ako nakakatanggap ng ganitong cases...
yan lagi ginagawa ko patagilid resistor then inject 1v sa shorted side..
kahit ako di ko mapaliwanag bakit bumabalik sa normal :D:D
​
 
activa2r said:
2 klase no display..

una no display dahil walang lights pero na nakikita mo display pag nag flash light ka
2nd no display as black screen talaga..

ito ngayon ang tanggap ko from co tech
no display as black screen..

disassembly phone at diode mode sa fpc..
at un nga shorted to ground ang LCD VSN
daapat may 5-6v output fpc nya..

View attachment 24944

connected sya sa charging ic..

View attachment 24945


kung makikita nyo ung resistor nilagyan ko mark..
cut natin connection para malaman kung ung ground sa fpc na side
or sa charging ic..

View attachment 24946

ung ginawa ko pina tagilid ko lng

View attachment 24947

at confirmed ung short papuntang fpc ginamitan ko thermal caam
at walang uminit :D :D :D

View attachment 24948

after inject 1v nawala short hahaha
wala akong ginalaw na pyesa :D:D:D
binalik ko resistor sa original position

View attachment 24949

sabay test..

View attachment 24950

and done....

post ko ito ilang beses na ako nakakatanggap ng ganitong cases...
yan lagi ginagawa ko patagilid resistor then inject 1v sa shorted side..
kahit ako di ko mapaliwanag bakit bumaabalik sa normal :D:D
​
Click to expand...
maraming salamat sa binahagi mo master napakalaking tulong nito hehe .
 
activa2r said:
2 klase no display..

una no display dahil walang lights pero na nakikita mo display pag nag flash light ka
2nd no display as black screen talaga..

ito ngayon ang tanggap ko from co tech
no display as black screen..

disassembly phone at diode mode sa fpc..
at un nga shorted to ground ang LCD VSN
dapat may 5-6v output fpc nya..

View attachment 24944

connected sya sa charging ic..

View attachment 24945


kung makikita nyo ung resistor nilagyan ko mark..
cut natin connection para malaman kung ung ground sa fpc na side
or sa charging ic..

View attachment 24946

ung ginawa ko pina tagilid ko lng

View attachment 24947

at confirmed ung short papuntang fpc ginamitan ko thermal cam
at walang uminit :D :D :D

View attachment 24948

after inject 1v nawala short hahaha
wala akong ginalaw na pyesa :D:D:D
binalik ko resistor sa original position

View attachment 24949

sabay test..

View attachment 24950

and done....

post ko ito ilang beses na ako nakakatanggap ng ganitong cases...
yan lagi ginagawa ko patagilid resistor then inject 1v sa shorted side..
kahit ako di ko mapaliwanag bakit bumabalik sa normal :D:D
​
Click to expand...
salamat sa pagbahagi ng kaalaman mo master
 
activa2r said:
2 klase no display..

una no display dahil walang lights pero na nakikita mo display pag nag flash light ka
2nd no display as black screen talaga..

ito ngayon ang tanggap ko from co tech
no display as black screen..

disassembly phone at diode mode sa fpc..
at un nga shorted to ground ang LCD VSN
dapat may 5-6v output fpc nya..

View attachment 24944

connected sya sa charging ic..

View attachment 24945


kung makikita nyo ung resistor nilagyan ko mark..
cut natin connection para malaman kung ung ground sa fpc na side
or sa charging ic..

View attachment 24946

ung ginawa ko pina tagilid ko lng

View attachment 24947

at confirmed ung short papuntang fpc ginamitan ko thermal cam
at walang uminit :D :D :D

View attachment 24948

after inject 1v nawala short hahaha
wala akong ginalaw na pyesa :D:D:D
binalik ko resistor sa original position

View attachment 24949

sabay test..

View attachment 24950

and done....

post ko ito ilang beses na ako nakakatanggap ng ganitong cases...
yan lagi ginagawa ko patagilid resistor then inject 1v sa shorted side..
kahit ako di ko mapaliwanag bakit bumabalik sa normal :D:D
​
Click to expand...
Ayon .nilabas na ang sekretong malupit.
 
tested kagagawa kolang now . salamat dito master
 

Attachments

  • 17254171391054126113327511229653.jpg
    17254171391054126113327511229653.jpg
    66.2 KB · Views: 11
Sir Yung vsp may output voltage rin ba yun...slmat sa pagsagot
 
sa wakas nakatanggap din ng ganto at ayon sapul po master saglit lng po pera na.......applicable lng po ata ito if im not mistaken pag short sa may lcd-vsn samat po..
 
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