MI Note 4 Display Back Light Solution - Page 2 - GSM-Forum

sameer918 · 04-16-2018, 15:16

Check and Reply brother

Regards
Chandhok Mobile service center

zexon72 · 04-25-2018, 07:35

Quote:

Originally Posted by deep_6111

MI Note 4 Display Back Light Solution
Attachment 362207

Fantastic solution - working perfectly.
Yesterday I fixed 3 outstanding RMN4X. In all diode the total break - in two the coil complete short circuit.

valio76 · 04-20-2019, 15:54

Hello! Tell me - there is no backlight on the screen Xiaomi Redmi note 4, on the MTK processor. Coils and diode are normal. System board after water .....

^Galileo^ · 05-12-2019, 11:04

Quote:

Originally Posted by cresstt

I downloaded schematics from this thread. The note4 schematics is not exactly the same, but from the schematics page, on u201(PMI8952)

diode is WSB5507W-2
and
inductor coil is 10uH

whre can i get that diodd. Is thre any one who sale it?

^Galileo^ · 05-18-2019, 04:26

I found on my mi note 4x board that there is no 16.2V into the diode, so i tried to inject that voltage using psu and found that the backlight is working perfectly, but now i dont know where i can find that voltage on the board? Any help n solution will be very apriciate

04-20-2019, 15:54	#18 (permalink)
valio76 Junior Member Join Date: Nov 2017 Posts: 1 Member: 2782772 Status: Offline Thanks Meter: 0	Hello! Tell me - there is no backlight on the screen Xiaomi Redmi note 4, on the MTK processor. Coils and diode are normal. System board after water .....

05-18-2019, 04:26	#20 (permalink)
^Galileo^ Junior Member Join Date: Jun 2017 Posts: 3 Member: 2728211 Status: Offline Thanks Meter: 0	I found on my mi note 4x board that there is no 16.2V into the diode, so i tried to inject that voltage using psu and found that the backlight is working perfectly, but now i dont know where i can find that voltage on the board? Any help n solution will be very apriciate