Help to repair Samsung SGH-I747 unknown baseband... - GSM-Forum

Ransiri · 10-07-2014, 23:40

I have I747 with unknown base-band and IMEI unknown. Its damage by my self. I will explain the fault history.
Phone came to me as a "Camera not working" . Customer said its happened after unlock it. When i see it i saw its firmware change to SGH_I747M when unlocking. However network worked fine. I decided to re-flashed it with correct firmware. After few tries its done. Its in 4.3 now and unknown base-band and IMEI unknown. Just i tried to place here at least info log. But now i got it phone cannot identify by pc

. Just error message pop up "USB DEVICE NOT RECOGNIZED" ( Service mode - UART to PDA and cannot select as a MODEM / USB Settings - DM + MODEM + ADB ). But still in odin mode phone connect with pc as normal.
Before this lost connectivity I try to repair it with Z3X and always its failed when "by passing MSL". I don't have that log and that time customer make me hurry and he got phone back to Samsung service center and its brought to me again due to rejecting by Samsung and current situation I explained upper.
Last time I try to repair this with my knowledge working with other phones. But this time i decide i wanna guide step by step if possible with Z3X...

Sorry for long explanation, but i think its needed... Pls help me...

Ransiri · 10-08-2014, 00:12

I am sorry and please ignore that "USB DEVICE NOT RECOGNIZED" matter. I think its my pc problem....

Ransiri · 10-08-2014, 00:59

Selected model: I747
Selected port: COM74 SAMSUNG Mobile USB Serial Port
Selected port speed: 115200
Searching ADB device... OK
Reading phone info...
Model: SAMSUNG-SGH-I747
Android version: 4.3
Product code: Unknown
Phone version: Unknown
PDA version: I747UCUEMJB
CSC version: I747ATTEMJB
IMEI: Unknown
Phone S/N: Unknown
Checking Super user right... true
Backuping MMCBLK... OK
Checking phone at COM74
Backuping NVM... OK
Writing data to phone... OK
Reseting EFS... OK
Rebooting phone... OK
Waiting phone... OK
Bypass MSL... error
Done with Samsung Tool v.18
Done with Samsung Tool v.18.2

rasgula · 10-08-2014, 04:00

your phone was upgraded to wrong software .. follow these steps if still same then you have to upgrade to latest 1747M to get imei /baseband back.

root your phone
use z3x ver 16.9
do repair EFS/Baseband
do repair imei/network
your phone will be ok.
good luck.
BR

A4L · 10-08-2014, 04:19

I think flashing 4.4.2 for i747 should solve your problem.

saf470 · 10-08-2014, 07:54

hi,

try to search only modem file. flashed with recovery modem file, should solve ur problem.
re,

10-07-2014, 23:40	#1 (permalink)
Ransiri No Life Poster Join Date: Jun 2007 Location: Gampaha, Srilanka Posts: 766 Member: 527534 Status: Offline Sonork: 100.1606510 Thanks Meter: 193	Help to repair Samsung SGH-I747 unknown baseband... I have I747 with unknown base-band and IMEI unknown. Its damage by my self. I will explain the fault history. Phone came to me as a "Camera not working" . Customer said its happened after unlock it. When i see it i saw its firmware change to SGH_I747M when unlocking. However network worked fine. I decided to re-flashed it with correct firmware. After few tries its done. Its in 4.3 now and unknown base-band and IMEI unknown. Just i tried to place here at least info log. But now i got it phone cannot identify by pc. Just error message pop up "USB DEVICE NOT RECOGNIZED" ( Service mode - UART to PDA and cannot select as a MODEM / USB Settings - DM + MODEM + ADB ). But still in odin mode phone connect with pc as normal. Before this lost connectivity I try to repair it with Z3X and always its failed when "by passing MSL". I don't have that log and that time customer make me hurry and he got phone back to Samsung service center and its brought to me again due to rejecting by Samsung and current situation I explained upper. Last time I try to repair this with my knowledge working with other phones. But this time i decide i wanna guide step by step if possible with Z3X... Sorry for long explanation, but i think its needed... Pls help me...

10-08-2014, 04:00	#4 (permalink)
rasgula No Life Poster Join Date: Feb 2005 Location: Canada Posts: 1,278 Member: 119464 Status: Offline Thanks Meter: 288	your phone was upgraded to wrong software .. follow these steps if still same then you have to upgrade to latest 1747M to get imei /baseband back. root your phone use z3x ver 16.9 do repair EFS/Baseband do repair imei/network your phone will be ok. good luck. BR Last edited by rasgula; 10-08-2014 at 04:06.

10-08-2014, 00:12	#2 (permalink)
Ransiri No Life Poster Join Date: Jun 2007 Location: Gampaha, Srilanka Posts: 766 Member: 527534 Status: Offline Sonork: 100.1606510 Thanks Meter: 193	I am sorry and please ignore that "USB DEVICE NOT RECOGNIZED" matter. I think its my pc problem....

10-08-2014, 00:59	#3 (permalink)
Ransiri No Life Poster Join Date: Jun 2007 Location: Gampaha, Srilanka Posts: 766 Member: 527534 Status: Offline Sonork: 100.1606510 Thanks Meter: 193	Selected model: I747 Selected port: COM74 SAMSUNG Mobile USB Serial Port Selected port speed: 115200 Searching ADB device... OK Reading phone info... Model: SAMSUNG-SGH-I747 Android version: 4.3 Product code: Unknown Phone version: Unknown PDA version: I747UCUEMJB CSC version: I747ATTEMJB IMEI: Unknown Phone S/N: Unknown Checking Super user right... true Backuping MMCBLK... OK Checking phone at COM74 Backuping NVM... OK Writing data to phone... OK Reseting EFS... OK Rebooting phone... OK Waiting phone... OK Bypass MSL... error Done with Samsung Tool v.18 Done with Samsung Tool v.18.2

10-08-2014, 04:19	#5 (permalink)
A4L No Life Poster Join Date: Aug 2013 Location: Somewhere on earth Posts: 629 Member: 2014742 Status: Offline Thanks Meter: 167	I think flashing 4.4.2 for i747 should solve your problem.

10-08-2014, 07:54	#6 (permalink)
saf470 Freak Poster Join Date: Apr 2006 Location: I N D I A Age: 39 Posts: 433 Member: 262429 Status: Offline Thanks Meter: 123	hi, try to search only modem file. flashed with recovery modem file, should solve ur problem. re,