REFERENCE Huawei Y7a No Power&Not Charging Fullshorted after heavy drop.

[kristian14]

Share ko lang po mga boss. Huawei Y7a
issue : No Power after mahulog.

Procedure:
1.Check first the main board if there is a broken ic or broken capacitors.
2. use your Dc Power supply/Digital tester etc. (kung ano meron kayo panokat.) to check if there is a leak on PCB board.
3.apply some smoke rosin/freezer spray to see directly if there is a shorted components.
4.REMOVE/REPLACE Damage ic/capacitors.
5. then test/try it.

pag may ganito kayo tanggap na unit check nyo agad VCC main capacitor yan yung ilang ulit ko na tenitest. may beeping sa tester. at low resistance.

 

[junas143]

Share ko lang po mga boss. Huawei Y7a
issue : No Power after mahulog.

Procedure:
1.Check first the main board if there is a broken ic or broken capacitors.
2. use your Dc Power supply/Digital tester etc. (kung ano meron kayo panokat.) to check if there is a leak on PCB board.
3.apply some smoke rosin/freezer spray to see directly if there is a shorted components.
4.REMOVE/REPLACE Damage ic/capacitors.
5. then test/try it.

pag may ganito kayo tanggap na unit check nyo agad VCC main capacitor yan yung ilang ulit ko na tenitest. may beeping sa tester. at low resistance.

View attachment 2484View attachment 2486View attachment 2485

same model y7a not charging and no power and not detect on pc..

 

[junas143]

same model y7a not charging and no power and not detect on pc..

customer history hindi daw nahulod or water damage nag charge lng daw my natira pa sa battery percent tapos pag balik niya hindi na daw mag on

 

[kristian14]

customer history hindi daw nahulod or water damage nag charge lng daw my natira pa sa battery percent tapos pag balik niya hindi na daw mag on

pag ganyan dead na talaga yung unit. check nyo muna baka power ic/charging ic check nyo resistance baka kaya pa mapabuhay. pero pag si CPU na patay na talaga yan.