i need the stock modem for SGH-I747 on both adroid 4.3 and 4.1.1

[ahmad83it]

hi
i downgraded the phone from 4.3 to to 4.1.1 using mobile odin but now the baseband is unknown and IMEI Null
how to fix this up , please

 

[audit13]

Did you downgrade to unlock the phone? This method can't be used to unlock the phone.

 

[ahmad83it]

the phone does not work with me

Did you downgrade to unlock the phone? This method can't be used to unlock the phone.

No . I don`t , my story with this phone is long, first time the phone has android 4.0.1 , i wanted to upgrade it to 4.3 OTA i just followed the instruction on YouTube how to upgrade
once the operation of upgrading is finished the phone rebooted and no signal nothing appear on lcd no vibration so i thought after searching that phone is hard bricked
what i did then looking for brick image to make phone up and then flash another one , i found my self in trouble unlocked phone became locked i lost everything on phone
baseband and IMEi is null and unknown ,



i bought the phone as unlocked sim phone and now nothing success with me
what i should do to fix this problem?

 

[audit13]

If you can get into download mode, flash a custom recovery to your phone and then flash an old cm11 ROM to see if you can get the phone booted.

 

[ahmad83it]

which one to use

If you can get into download mode, flash a custom recovery to your phone and then flash an old cm11 ROM to see if you can get the phone booted.

which is best a custom recovery you advise me to use , i have a lot openrecovery-twrp-2.6.3.1-d2att and CWM-Recovery

 

[ahmad83it]

finally working but ,

If you can get into download mode, flash a custom recovery to your phone and then flash an old cm11 ROM to see if you can get the phone booted.

dear after a couple of tries , finally i flash the 4.3ucufne4 and successfully flashed and working 100%
but the sim card locked the phone became locked although it was unlocked

how to solve this