Huawei Y7 Prime Schematic diagram - GSM-Forum

Rizwan ch08 · 12-05-2018, 12:37

i need

Huawei Y7 Prime Schematic diagram

ksktechnics · 04-10-2019, 17:07

I ask you a big favor to see if I can solve a problem with a Huawei Y7 2018.
This cell phone does not show me an image, after doing an ultrasonic cleaning.
Attached the only plans that are on the internet:
https://postimg.cc/ctTsy2wB
https://postimg.cc/4nRQWdP1
https://postimg.cc/1gzWDpHm
https://postimg.cc/V59Bp8HP
https://postimg.cc/gLdVmJ7F
Could you confirm that at the output of the Shottcky diode, from the image called "lcd2", there are 24 volts?
In some videos, I hear that the coils are never connected to ground, or that some backlight coils have some coil of ground, although it is not usual.
Can you tell me in this case, in the image called "lcd2", the coil marked with a red circle, could be connected to ground? Because I verified it in the Y7 that I am trying to repair, it is, although the Coil that is underneath it is not.
If this coil was defective, could it be the cause of the output of the PMI8940 not being on the 24 volts of the backlight? Because when I measured it, I only got 4.7 volts.
Is the PMI8940 defective or is it a problem with the coil?
I hope that you share your wisdom with all those who do not dedicate ourselves, with greater or lesser fortune, to the reparations and what can be given a little light in the resolution of my problem.
Regards, and thank you very much.

loveinfire · 02-06-2020, 09:49

Hi

For charging

https://postimg.cc/V59Bp8HP

Can remove ic and jump ????
Like this:

https://postimg.cc/8J1d04Tb

This s10 plus .its work,no any problem
How???

12-05-2018, 12:37	#1 (permalink)
Rizwan ch08 No Life Poster Join Date: Nov 2007 Location: Hum Aapke Dil Mein Age: 38 Posts: 2,237 Member: 637860 Status: Offline Sonork: 100.1605309 Thanks Meter: 996	Huawei Y7 Prime Schematic diagram i need Huawei Y7 Prime Schematic diagram

04-10-2019, 17:07	#2 (permalink)
ksktechnics Junior Member Join Date: Jul 2017 Posts: 28 Member: 2741509 Status: Offline Thanks Meter: 17	I ask you a big favor to see if I can solve a problem with a Huawei Y7 2018. This cell phone does not show me an image, after doing an ultrasonic cleaning. Attached the only plans that are on the internet: https://postimg.cc/ctTsy2wB https://postimg.cc/4nRQWdP1 https://postimg.cc/1gzWDpHm https://postimg.cc/V59Bp8HP https://postimg.cc/gLdVmJ7F Could you confirm that at the output of the Shottcky diode, from the image called "lcd2", there are 24 volts? In some videos, I hear that the coils are never connected to ground, or that some backlight coils have some coil of ground, although it is not usual. Can you tell me in this case, in the image called "lcd2", the coil marked with a red circle, could be connected to ground? Because I verified it in the Y7 that I am trying to repair, it is, although the Coil that is underneath it is not. If this coil was defective, could it be the cause of the output of the PMI8940 not being on the 24 volts of the backlight? Because when I measured it, I only got 4.7 volts. Is the PMI8940 defective or is it a problem with the coil? I hope that you share your wisdom with all those who do not dedicate ourselves, with greater or lesser fortune, to the reparations and what can be given a little light in the resolution of my problem. Regards, and thank you very much.

02-06-2020, 09:49	#3 (permalink)
loveinfire Junior Member Join Date: May 2016 Posts: 29 Member: 2570643 Status: Offline Thanks Meter: 4	Hi For charging https://postimg.cc/V59Bp8HP Can remove ic and jump ???? Like this: https://postimg.cc/8J1d04Tb This s10 plus .its work,no any problem How???