No SIM Problem After Flash

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Arbaz123

Arbaz123

Intermediate
Feb 24, 2011
216
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Islamabad
Salam,
I have a Galaxy S3 GT I9300 and I've successfully rooted the device and installed a custom recovery...whenever I flash a custom ROM which is not based on stock e.g Cyanogen,LiquidSmooth,Ressurection Remix...my phone does not detect my sim.
Is there any fix to this?
 
abobobilly

abobobilly

$heeda Pastol ™
Dec 3, 2008
14,732
3
44
Lahore
That could be because baseband gets screwed in the process. (take a backup of your EFS Partition, to preserve your IMEI).

I can only think of one thing, and that is "Baseband needs repairing". But i might be wrong. Best way to check? Well ... see if there is a IMEI (or a correct one; not the 0049xxx something) in Settings > About. If there isn't, then its what i have mentioned before.
 
Arbaz123

Arbaz123

Intermediate
Feb 24, 2011
216
0
21
Islamabad
[MENTION=8060]abobobilly[/MENTION]
The IMEI is correct. [MENTION=26661]Cerberus[/MENTION]
So I need to flash the stock 4.3 via Odin?...
 
mave3

mave3

Modding Freak!
Jan 30, 2009
5,182
2
44
Lahore
bro flash the stock rom...
and after that root ur phone....and flash cwm..
after that install a custom rom...
with the 3 way thingi.....
Complete format of system and data.....
then cache and then delvik cache...
and use the latest recovery always..
Backup efs folder...
always a good thingi if u dont screw up...
rest should be all good..
here is the rom u should be using..

♦ [ROM][I9300][5.0.2] Temasek's UNOFFI… | Samsung Galaxy S III I9300, I9305 | XDA Forums
 
Arbaz123

Arbaz123

Intermediate
Feb 24, 2011
216
0
21
Islamabad
[MENTION=9503]mave3[/MENTION]
Do I need to flash any specific Kernel or Baseband version if my SIM does not work after flashing this?
 
Arbaz123

Arbaz123

Intermediate
Feb 24, 2011
216
0
21
Islamabad
@mave3
Same error...No network...The Wifi bluetooth work fine but the SIM does not
The contacts in the sim show up but the IMEI is NULL the baseband version is unknown.

Update: I did the whole process again and found that when I rooted in the stock using CF Auto Root, I got no IMEI and No baseband...
 
Last edited:
djkido316

djkido316

BEST at what i do !
Feb 5, 2008
2,063
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43
N.Nazimabad Karachi
Arbaz123 said:
@mave3
Same error...No network...The Wifi bluetooth work fine but the SIM does not
The contacts in the sim show up but the IMEI is NULL the baseband version is unknown.

Update: I did the whole process again and found that when I rooted in the stock using CF Auto Root, I got no IMEI and No baseband...
Click to expand...
If the IMEI is null. You won't be able to use GSM at all. Did you backup ES parition? If you did. Does it have nv_data.bin in it? It has your IMEI/Baseband Info.
 
Arbaz123

Arbaz123

Intermediate
Feb 24, 2011
216
0
21
Islamabad

@djkido316
I fixed the NULL IMEI problem...Somehow the TWRP recovery was messing with the EFS partition...I installed Philz recovery and got back the IMEI and everything...but the problem still remains...if I flash the Temasek CM 12 or any other rom not based on official stock...I get no IMEI and No Network
 
djkido316

djkido316

BEST at what i do !
Feb 5, 2008
2,063
18
43
N.Nazimabad Karachi
Arbaz123 said:

@djkido316
I fixed the NULL IMEI problem...Somehow the TWRP recovery was messing with the EFS partition...I installed Philz recovery and got back the IMEI and everything...but the problem still remains...if I flash the Temasek CM 12 or any other rom not based on official stock...I get no IMEI and No Network
Click to expand...
If you got your IMEI back and Network still isn't available Even in stock. I'm afraid but it might be a hardware related 'ISSUE'.

Or try this Tutorial if you're on stock XXUGMK6 firmware. http://www.androidveterans.com/solve-registered-network-galaxy-s3-i9300-issue-restore-imei/
 
Last edited:
djkido316

djkido316

BEST at what i do !
Feb 5, 2008
2,063
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N.Nazimabad Karachi
Arbaz123

Arbaz123

Intermediate
Feb 24, 2011
216
0
21
Islamabad
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