Wiko Selfy MTK6735M dead after flash, computer does not recognize - GSM-Forum

m.aminhaqjoo · 04-22-2018, 17:53

Hello everyone, that phone is dead after flashing wrong firmware, but I have backed up it's ROM, the problem is this that now computer is not recognizing it at all, disassembled it and could not find Kolo Or Colo Test point.
What is your suggestion to bring it back to life?
Thanks in advance

vikas mahajan · 04-22-2018, 18:12

Open phone and connect kcolo and ground. Flash again with correct firmware

Sent from my Mi A1 using Tapatalk

m.aminhaqjoo · 04-22-2018, 19:42

Quote:

Originally Posted by vikas mahajan

Open phone and connect kcolo and ground. Flash again with correct firmware

Sent from my Mi A1 using Tapatalk

the problem is I could not find KCOLO, there are rx,tx d-,d+ but no kcolo

**Brka** · 04-22-2018, 22:15

Quote:

Originally Posted by m.aminhaqjoo

the problem is I could not find KCOLO, there are rx,tx d-,d+ but no kcolo

In all newer MTK's, KCOL0 (aka - "Testpoint") is usually hard-wired
to some of volume buttons (usually volume UP), so all you need to do is,
reconnect battery, hold volume button + insert USB cable.

Try and post results.

If still nothing - take a good picture of phone board when you open phone
and post here. Maybe we can find it together.

b.r.
Alex

m.aminhaqjoo · 04-23-2018, 06:06

I tried pressing volume keys but not booting. Here is a picture of PCB, thanks so much for helping

**Brka** · 04-24-2018, 00:24

Try TP from attached picture (green arrow marked)... it's the most possible one

b.r.
Alex

**Brka** · 04-24-2018, 00:26

Try TP from attached picture (green arrow marked)... it's the most possible one

p.s. I hope you also have correct rom ? if not, download - Wiko_Selfy_4G_MT6735M_V07_5.1

b.r.
Alex

m.aminhaqjoo · 04-24-2018, 05:34

Quote:

Originally Posted by Brka

Try TP from attached picture (green arrow marked)... it's the most possible one

b.r.
Alex

Thanks for your reply but I tried those points , non of them seems to work . isn't it possible to write only preloader via tx and rx ?

04-22-2018, 17:53	#1 (permalink)
m.aminhaqjoo No Life Poster Join Date: Dec 2011 Location: Heart of Asia Posts: 689 Member: 1706168 Status: Offline Sonork: 100.1619095 Thanks Meter: 66	Wiko Selfy MTK6735M dead after flash, computer does not recognize Hello everyone, that phone is dead after flashing wrong firmware, but I have backed up it's ROM, the problem is this that now computer is not recognizing it at all, disassembled it and could not find Kolo Or Colo Test point. What is your suggestion to bring it back to life? Thanks in advance

04-24-2018, 00:26	#7 (permalink)
Brka Moderator Join Date: Jun 1999 Location: Serbia Age: 48 Posts: 8,201 Member: 163 Status: Offline Thanks Meter: 7,778	Try TP from attached picture (green arrow marked)... it's the most possible one p.s. I hope you also have correct rom ? if not, download - Wiko_Selfy_4G_MT6735M_V07_5.1 b.r. Alex __________________ Always press THANKS button if my post was helpful! Please DO NOT send me PM's for help, You can ask for help on forum Do not post THANKS posts - use thanks button ! ALWAYS use SEARCH button before posting!

04-22-2018, 18:12	#2 (permalink)
vikas mahajan Freak Poster Join Date: Mar 2016 Location: punjab ,india Posts: 227 Member: 2548878 Status: Offline Thanks Meter: 97	Open phone and connect kcolo and ground. Flash again with correct firmware Sent from my Mi A1 using Tapatalk

04-23-2018, 06:06	#5 (permalink)
m.aminhaqjoo No Life Poster Join Date: Dec 2011 Location: Heart of Asia Posts: 689 Member: 1706168 Status: Offline Sonork: 100.1619095 Thanks Meter: 66	I tried pressing volume keys but not booting. Here is a picture of PCB, thanks so much for helping