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[Q] S4 GT-I9500 IMEI lost, no EFS backup. Help!

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By amit.talukdar, Junior Member on 16th January 2014, 08:51 PM
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17th January 2014, 04:23 PM |#11  
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Quote:
Originally Posted by Obagleyfreer

OK, was there really the need to be such a dick?
....

Sorry, did not understood your wording (can be an effect that I grown in different environment what resulted with other than yours standards and wording, apologies for that).
Did you mean, if it was really a reason to be sarcastic, while seeing the totally rubbish post, asking the @op to perform nonsense, useless and irrelevant in his situation actions because its author was not able to read the problem with understanding?
If so, the answer is: yes, indeed, it was a need to be sarcastic. Maybe the author would stop himself from posting nonsenses in the future.
 
 
20th January 2014, 10:47 PM |#12  
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Solved:Hex Editor Route
1- Flashed Stock android- adonis.pit & I9500XXUEMK9_I9500ODDEMK9_I9500DDUEMK9_HOME.tar

2- Rooted using CF-Auto-Root-ja3g-ja3gxx-gti9500.tar

3- Installed TWRP Recovery using goo

4- Downloaded Hxd (Windows Hex editor- Freeware)

5- Using ES Explorer (Root Mode) copied EFS folder to Windows and started opening all files-

Made following changes-

Change 1: In nv_data.bin change the addresses to this-

00188000: FF FF FF FF 4D 50 20 30 2E 38 30 30 00 00 00 49
00188010: 4E 55 00 00 00 00 47 54 2D 49 39 35 30 30 5A 4B
00188020: 41 49 4E 55 00 00 00 00 00 00 FF FF FF FF FF FF

This reads as - MP 0.800...INU....GT-I9500ZKAINU......

Change 2: efs\FactoryApp\ serial_no

Put the serial no in hex and changed permission to system and removed write access from system. After reboot it reverted to zero so made it read only for system (changed permissions from with in ES file manager)

Rebooted and it worked

I know.. I am lucky to get it back working.. have made 4 backups from dropbox to google drive now
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19th March 2014, 11:11 PM |#13  
ygor.almeida's Avatar
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I got one board replacement ... but it comes with generic IMEI - how do i write a new one ( i have the one that was corrupted board ) i want to write that imei to the new board ? how to do ?! hexedit will work ?!
20th March 2014, 12:39 AM |#14  
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You have the IMEI at under battery spot, so get the number than change the IMEi with IMEi Changer.

Take a look on google for a app for this.
Or with Notepad + ADB

Cya!
5th February 2015, 01:19 AM |#15  
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Quote:
Originally Posted by amit.talukdar

1- Flashed Stock android- adonis.pit & I9500XXUEMK9_I9500ODDEMK9_I9500DDUEMK9_HOME.tar

2- Rooted using CF-Auto-Root-ja3g-ja3gxx-gti9500.tar

3- Installed TWRP Recovery using goo

4- Downloaded Hxd (Windows Hex editor- Freeware)

5- Using ES Explorer (Root Mode) copied EFS folder to Windows and started opening all files-

Made following changes-

Change 1: In nv_data.bin change the addresses to this-

00188000: FF FF FF FF 4D 50 20 30 2E 38 30 30 00 00 00 49
00188010: 4E 55 00 00 00 00 47 54 2D 49 39 35 30 30 5A 4B
00188020: 41 49 4E 55 00 00 00 00 00 00 FF FF FF FF FF FF

This reads as - MP 0.800...INU....GT-I9500ZKAINU......

Change 2: efs\FactoryApp\ serial_no

Put the serial no in hex and changed permission to system and removed write access from system. After reboot it reverted to zero so made it read only for system (changed permissions from with in ES file manager)

Rebooted and it worked

I know.. I am lucky to get it back working.. have made 4 backups from dropbox to google drive now

Amit, your instructions were spot on !
Fixed everything for me.

I've been narrowing it down and figured it was something to do with EFS but i've been researching this all day and stumbled upon your post GJ I dont think i would have edited the .bin file with a hex editor to read it ..
5th February 2015, 10:36 AM |#16  
Strephon Alkhalikoi's Avatar
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Just to point this out for the rest of the folks watching, but in order for this to work the phone has to have the nv_data.bin file. Some devices, e.g. mine, don't have the file at all.
21st February 2015, 11:43 PM |#17  
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Quote:
Originally Posted by amit.talukdar

This reads as - MP 0.800...INU....GT-I9500ZKAINU......

Change 2: efs\FactoryApp\ serial_no

Put the serial no in hex and changed permission to system and removed write access from system. After reboot it reverted to zero so made it read only for system (changed permissions from with in ES file manager)

Sorry but, what you mean here is that I replace the serial number inside the serial_no file with I9500ZKAINU?
15th August 2015, 07:09 PM |#18  
rakesh.aggarwal's Avatar
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Quote:
Originally Posted by amit.talukdar

1- Flashed Stock android- adonis.pit & I9500XXUEMK9_I9500ODDEMK9_I9500DDUEMK9_HOME.tar

2- Rooted using CF-Auto-Root-ja3g-ja3gxx-gti9500.tar

3- Installed TWRP Recovery using goo

4- Downloaded Hxd (Windows Hex editor- Freeware)

5- Using ES Explorer (Root Mode) copied EFS folder to Windows and started opening all files-

Made following changes-

Change 1: In nv_data.bin change the addresses to this-

00188000: FF FF FF FF 4D 50 20 30 2E 38 30 30 00 00 00 49
00188010: 4E 55 00 00 00 00 47 54 2D 49 39 35 30 30 5A 4B
00188020: 41 49 4E 55 00 00 00 00 00 00 FF FF FF FF FF FF

This reads as - MP 0.800...INU....GT-I9500ZKAINU......

Change 2: efs\FactoryApp\ serial_no

Put the serial no in hex and changed permission to system and removed write access from system. After reboot it reverted to zero so made it read only for system (changed permissions from with in ES file manager)

Rebooted and it worked

I know.. I am lucky to get it back working.. have made 4 backups from dropbox to google drive now

Bro. I will try this tomorrow morning. If I need any help can I PM you. Please please...

---------- Post added at 06:09 PM ---------- Previous post was at 06:02 PM ----------

Quote:
Originally Posted by Strephon Alkhalikoi

Just to point this out for the rest of the folks watching, but in order for this to work the phone has to have the nv_data.bin file. Some devices, e.g. mine, don't have the file at all.

So what do we have to do in this case...

Scary Samsung...
15th August 2015, 11:08 PM |#19  
Strephon Alkhalikoi's Avatar
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Send it in to Samsung and have them fix it. It's likely the only legal way to get your IMEI back if you didn't make a backup.
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