Unlock Failed i747 help [ANSWERED]

[xenior]

Hi

I tried to unlock i337 from AT&T...

your instruction show me
type *#7284# and choose USB Diag -> but there's no USB Diag
and type *#197328640#, select : Common -> Diag Config -> USB Diag...but there's no Common tap.

So, I type *#0808# choose DM + Modem + ADB

and tried to unlock...but result is failed.

here's log...

Scanning devices ... 2 found
dev[1]
Manufactory:
Model:
Hardware:
Mode: offline
offline
Your device is offline, try follow steps to solve this problem:
1. diable and re-enable your device USB debug
2. reboot your device
3. restart adb service
4. change a usb cable or usb port.
dev[2]
Manufactory: SAMSUNG
Model: SGH-I747
Hardware:
Mode: QCDI,MTP
Unlocking device ... not supported modem firmware
Time used : 1.2 s

[maxshah]

Same problam here menu dose not exsist on my phone
Phone M919 S4

[maxshah]

Originally Posted by xenior

Hi

I tried to unlock i337 from AT&T...

your instruction show me
type *#7284# and choose USB Diag -> but there's no USB Diag
and type *#197328640#, select : Common -> Diag Config -> USB Diag...but there's no Common tap.

So, I type *#0808# choose DM + Modem + ADB

and tried to unlock...but result is failed.

here's log...

Scanning devices ... 2 found
dev[1]
Manufactory:
Model:
Hardware:
Mode: offline
offline
Your device is offline, try follow steps to solve this problem:
1. diable and re-enable your device USB debug
2. reboot your device
3. restart adb service
4. change a usb cable or usb port.
dev[2]
Manufactory: SAMSUNG
Model: SGH-I747
Hardware:
Mode: QCDI,MTP
Unlocking device ... not supported modem firmware
Time used : 1.2 s

I figure it out on my M919 it was so easy I don't know why I was dumb for so long lool

This is what i did exactly
====Flashed my S4 M919 [ tmobile us S4 ] back to 4.2.2 stock
====Rooted using CF Auto root
====Turn on Debugging and approved
====I went to *#0808# and selected DM + MoDEM + ADB last option
====Then *#9090# and selected DM/DUM over HSIC then restart
====Plugged phone back to Computer Using Micro USB only
====Smart tool Samsung Tab Unlock Clicked on Com Port option [ and ====selected port phone was installed on ]
====Then pressed unlock phone restarted and after 10 sec it was unlocked ====T-Mobile s4 using it on AT&T at this moment

[ub]

Originally Posted by xenior

hi

i tried to unlock i337 from at&t...

Your instruction show me
type *#7284# and choose usb diag -> but there's no usb diag
and type *#197328640#, select : Common -> diag config -> usb diag...but there's no common tap.

So, i type *#0808# choose dm + modem + adb

and tried to unlock...but result is failed.

Here's log...

scanning devices ... 2 found
dev[1]
manufactory:
Model:
Hardware:
Mode: offline
offline
your device is offline, try follow steps to solve this problem:
1. Diable and re-enable your device usb debug
2. Reboot your device
3. Restart adb service
4. Change a usb cable or usb port.
dev[2]
manufactory: samsung
model: sgh-i747
hardware:
Mode: qcdi,mtp
unlocking device ... not supported modem firmware
time used : 1.2 s

*#7284# pdv in usb and urt in modem
yes rj45 with 512 k and unlock with urt 100%

[xenior]

I don't have 512k cable...I have only 150k, 619k, 523k and a P1000 cable only...it's all comes with the dongle...when I bought BST dongle

I need to buy separate?

Let me know....

And when I connect PCB board and phone...computer never recognize the phone...how can I connect it? it dependant on cable?
all the drivers are install correctly...

[Neavesin]

Anyone can explain me, how to unlock sgh-m919 tmobile, it has 4.3 android version, im trying but I cant do it, im dont know if i will use de UART cable, or only the usb cable, Please help mee!!

[EmeGSM-Wei]

Originally Posted by xenior

I don't have 512k cable...I have only 150k, 619k, 523k and a P1000 cable only...it's all comes with the dongle...when I bought BST dongle

I need to buy separate?

Let me know....

And when I connect PCB board and phone...computer never recognize the phone...how can I connect it? it dependant on cable?
all the drivers are install correctly...

Hi, R523K cables is working for I747 sure. if you facing "Unsupported modem firmware" then flashing with other modem version (eg: LG1) please.

Best Regards
GsmBest Team

[manry]

Originally Posted by maxshah

I figure it out on my M919 it was so easy I don't know why I was dumb for so long lool

This is what i did exactly
====Flashed my S4 M919 [ tmobile us S4 ] back to 4.2.2 stock
====Rooted using CF Auto root
====Turn on Debugging and approved
====I went to *#0808# and selected DM + MoDEM + ADB last option
====Then *#9090# and selected DM/DUM over HSIC then restart
====Plugged phone back to Computer Using Micro USB only
====Smart tool Samsung Tab Unlock Clicked on Com Port option [ and ====selected port phone was installed on ]
====Then pressed unlock phone restarted and after 10 sec it was unlocked ====T-Mobile s4 using it on AT&T at this moment

How you downgrade to 4.2.2 without customizing the 4.4 bootloader? Odin will no let you downgrade and send you to download mode. Pls explain all how you downgrade 4.4 to stock 4.2.2

[leo_hacker82]

i need help to unlock and repair imei s3 i747m in 4.3 from ur roms...not supported modem...any modem is working? please