Problem after upgrade

[timbo777]

Hi
I am new to this forum
I have a GT-I9100
It was on Gingerbread
I upgraded using ODIN, but the first time I tried it hung, so I restarted, Second time was successful.
I am now on JellyBean 4.1.2

However, I did not backup phone settings (it was not in my idiots guide), qnd since I upgraded my phone cannot connect to the mobile phone network.
The SIM seems fine as I moved it to an old Nokia 6310 and that allows me to make calls/texts but the Samsung is asking me for a Network SIM Unlock code.

I am with Vodafone in the UK. I rang them, quoted my IMEI number and they told me that they could not find that number on their system. The IMEI number I quoted them came from an App, but when I checked the sticker under the battery, it is the same.

As the phone was issued by Vodafone UK and I have been sing it for a year I am now very confused.

I cannot register on the network, I cannot add an APN manually.

I have now rooted the phone using PhilZ and still no joy.

Has anyone esle experienced this problem, and if so, how did they fix it?

 

[kelis32]

Hello

If you read around the forum you'll find this is a common problem when flashing a non carrier released firmware, the more experienced people here will tell you you should have backed up your EFS to save the unlock.

Can you confirm if you have had the phone since new and its always been on the voda network ? If this is the case voda should unlock it for you for free but you may have to tell them where it was purchased from etc

You could also try one of the Galaxy S2 unlock apps that are available, you should still be able to download them via wifi from the play store and install them or directly to your PC and transfer via USB

Edit* This has been reported as working on a lot of phones that have had the same issue as yourself

http://forum.xda-developers.com/showpost.php?p=34187077&postcount=685

*#06# on the keypad will confirm your phones IMEI

 

[timbo777]

As a newbie, I followed instructions which did not explain the carrier issue or that you should back up the EFS. I guess I just found the wrong set of how to's...

Anyway, I am on the case with Vodafone, so hopefully early next week it all gets sorted

Apart from the EFS issue, JellyBean 4.1.2 looks to be working well

 

[kelis32]

As a newbie, I followed instructions which did not explain the carrier issue or that you should back up the EFS. I guess I just found the wrong set of how to's...

Anyway, I am on the case with Vodafone, so hopefully early next week it all gets sorted

Apart from the EFS issue, JellyBean 4.1.2 looks to be working well

Hi

To be honest i only noticed when looking at the posts when i was thinking of flashing, i noticed a few people have had the same issue as yourself, as it happens mine went through fine even though the phone was originally carrier locked so i guess i got lucky.

I would go down the voda route as well, they have to provide you an unlock code and should not charge you as long as you have /will honour your contract and that should be a permanant unlock.

You should fill this in as well just to make sure

Vodafone UK - Help - Unlock Code Request Form