How to: Spica(i5700) sim unlock free.

[SERASER]

UPDATED# 24/4/2011


Hello another time.


I dicovered a new method to unlock the Spica for all carriers.

This method can be public, is no related with imei generation, I do it public for all Spica users.

You need be root, root explorer and one hex editor, I use UltraEdit, you can use the trial version.


First step, backup efs folder.


With root explorer, copy the efs folder from your Spica to your sd memory, save two copies in your pc, one is a backup, no modify it, and the other copy is for modify nv_data.bin to unlock the Spica.


Second step, edit nv_data bin and paste in efs folder.


Open nv_data.bin with your hex-editor, I use Ultraedit.


Go to line 433a0h, you only need do changes in this line.


Look at this first image, is your locked sim nv_data.bin:





You need do this changes, is a unlocked sim nv_data.bin:





Edit line 433a0h, do changes in hexadecimal area, not the encrypted area, only two values, change 01 to 00, see the pictures, and save the nv_data.bin modify.

Now the nv_data.bin is sim unlocked.

Put the new nv_data.bin in your sd card.

Copy with root explorer from your sd card, and paste in to efs folder, overwrite the original nv_data.bin.

Reboot and enjoy

PD: Other values, and changes in near lines too are valid, this disable the check sim.


If you like my work, buy me a english dictionary, is very bad Donate

[>stYLz]

Haha nice buddy!!

Sent from my GT-I5700 using Tapatalk

[Knuffibaer]

Hmm.

I should have nown this before 2 weeks. Then I could have saved some euros for a unlock code.
But due to the fact that I tried to hex edit the nv_data.bin before like the method was done with samsung galaxy s in the xda developer forum, I could not find the right values.

But what I did is that I did compare the locked nv_data.bin with the one after I did put in the unlock code that I bought. I did compare the two files with nwdiff and I know that there have been a lot more changes done to file then the lines you wrote down. (It tells me that aprox 1% of the data has been changed)

But if it works this is a great discover for all uf us, thanks.

[renddyx]

Works .. Thank you very much.

[potoc]

SERASER,

Could you tell me how did you find this lines to modify?
I mean..why this lines?

I'll try my phone with an other SIM..I'll send feedback Thanks for this great tutorial

[SERASER]

Works .. Thank you very much.

Perfect for the sceptics, thanks.

---------- Post added at 10:14 AM ---------- Previous post was at 10:11 AM ----------

SERASER,

Could you tell me how did you find this lines to modify?
I mean..why this lines?

I'll try my phone with an other SIM..I'll send feedback Thanks for this great tutorial

I think erase this lines disable the software check sim.

Greetings.

[kateno]

Thanks men!

[nebkat]

Thanks
How did you know that those lines modified unlock? Is there some way understand the file?

[SERASER]

Thanks
How did you know that those lines modified unlock? Is there some way understand the file?

Hello nebkat.

I can not explain more, sorry, is a delicated theme.

[Barcrawler]

Can I make backup of efs folder in recovery, unzip, edit nv_data bin, zip back up then restore via recovery ?