G935F Slow Charging and Usb Not Working - GSM-Forum

4k_rayhan · 07-05-2018, 09:36

My phone now charges incredibly slow. Even with fast charge option selected. What would normally take my phone maybe close to 2 hours to fully charge from 0% now takes 8+ hours. And usb also not working when I connect my phone usb with pc then show usb device not recognized.

I changed charging port and battery but still same problem.

d-Artigo · 07-06-2018, 05:53

Quote:

Originally Posted by 4k_rayhan

My phone now charges incredibly slow. Even with fast charge option selected. What would normally take my phone maybe close to 2 hours to fully charge from 0% now takes 8+ hours. And usb also not working when I connect my phone usb with pc then show usb device not recognized.

I changed charging port and battery but still same problem.

upload the top and bottom pcb boards .. we discussed together

sagarka · 08-21-2018, 15:49

did n e body have this slution plz share it. i have same problem charge very slow need about 6 to 7 hour for full charge.
Thanks

waliko2003 · 08-22-2018, 19:14

check ZD8008 ZD8009.

4k_rayhan · 08-27-2018, 07:40

Quote:

Originally Posted by waliko2003

check ZD8008 ZD8009.

Where is location of ZD8008 & ZD8009 You have any photo of this?

d-Artigo · 08-27-2018, 13:12

Quote:

Originally Posted by 4k_rayhan

Where is location of ZD8008 & ZD8009 You have any photo of this?

samsung s7 sm-G935F ZD8008-ZD8009 location

Kozel10 · 08-28-2018, 08:37

Obviously burnt resistors of 2.5 ohms !! (R8020, R8019)
R8020 and R8019 - measure, replace.
+ control zenerdiode ZD8008, ZD8009
+ control impedance bus USB_DP and USB_DM

4k_rayhan · 03-17-2019, 09:11

Quote:

Originally Posted by d-Artigo

samsung s7 sm-G935F ZD8008-ZD8009 location

Slow charging solved by remove (S2) ZD8008 but usb still not working
Where I get (S2) ZD8008?

07-05-2018, 09:36	#1 (permalink)
4k_rayhan Freak Poster Join Date: Aug 2014 Location: Dhaka, Bangladesh Posts: 176 Member: 2238789 Status: Offline Thanks Meter: 20	G935F Slow Charging and Usb Not Working My phone now charges incredibly slow. Even with fast charge option selected. What would normally take my phone maybe close to 2 hours to fully charge from 0% now takes 8+ hours. And usb also not working when I connect my phone usb with pc then show usb device not recognized. I changed charging port and battery but still same problem.

08-21-2018, 15:49	#3 (permalink)
sagarka Freak Poster Join Date: Apr 2003 Location: uk Age: 43 Posts: 489 Member: 26606 Status: Offline Thanks Meter: 6	did n e body have this slution plz share it. i have same problem charge very slow need about 6 to 7 hour for full charge. Thanks

08-22-2018, 19:14	#4 (permalink)
waliko2003 Insane Poster Join Date: Jul 2006 Location: DE_PL_CZ Age: 42 Posts: 66 Member: 305873 Status: Offline Thanks Meter: 17	check ZD8008 ZD8009.

08-28-2018, 08:37	#7 (permalink)
Kozel10 Junior Member Join Date: Jun 2014 Posts: 18 Member: 2206922 Status: Offline Thanks Meter: 6	Obviously burnt resistors of 2.5 ohms !! (R8020, R8019) R8020 and R8019 - measure, replace. + control zenerdiode ZD8008, ZD8009 + control impedance bus USB_DP and USB_DM