IMEI missing help.

[ViperGTX88]

Hi fellow LTT community. I have this Samsung S4 SGH-i337m that has a missing IMEI in settings. Where it usually say the IMIE its blank. I noticed this after i got my phone unlocked, i didn't bother to check IMIE before the unlock. I was wondering if there is a FREE way to get the IMEI number back with out a need of a service box. I Googled for  days now on the netter and have tried the terminal method after i rooted the S4 but, it did not work and for me to use Z3 tool i need to buy a service box. Anyone know how to recover the IMEI for free? I also tried through the service menu with no luck. Its just my extra old phone but, i cant sell it with a missing IMEI. Anyone know how to recover the number? 

[markymark]

Hi fellow LTT community. I have this Samsung S4 SGH-i337m that has a missing IMEI in settings. Where it usually say the IMIE its blank. I noticed this after i got my phone unlocked, i didn't bother to check IMIE before the unlock. I was wondering if there is a FREE way to get the IMEI number back with out a need of a service box. I Googled for  days now on the netter and have tried the terminal method after i rooted the S4 but, it did not work and for me to use Z3 tool i need to buy a service box. Anyone know how to recover the IMEI for free? I also tried through the service menu with no luck. Its just my extra old phone but, i cant sell it with a missing IMEI. Anyone know how to recover the number? 

Unless you backed up the partitions of the phone there is no way to get it back. I believe it is stored in the /efs partition. There are (were?) tools that you could use to back it up back when I was into ROMs on my S3. Also changing the IMEI is a federal offence (I once read) so you should be careful to not just change it and sell it or you could get in way more trouble than you want to.

[ViperGTX88]

Unless you backed up the partitions of the phone there is no way to get it back. I believe it is stored in the /efs partition. There are (were?) tools that you could use to back it up back when I was into ROMs on my S3. Also changing the IMEI is a federal offence (I once read) so you should be careful to not just change it and sell it or you could get in way more trouble than you wanI

I have the original EMI number for the phone on the sticker under the batter that i want to use. I also dont have the partition backed up. I dont think the ohone will work without a IMEI cuz, i tried making a call with my active Rogers sim card but the card is not detected. 

[Mew]

You can dial *#06# to get your imei

[ViperGTX88]

You can dial *#06# to get your imei

Its blank when i do that.

[markymark]

I have the original EMI number for the phone on the sticker under the batter that i want to use. I also dont have the partition backed up. I dont think the ohone will work without a IMEI cuz, i tried making a call with my active Rogers sim card but the card is not detected. 

Who and how was the unlock done? I'm assuming it was a sim unlock and not a bootloader unlock right? I wouldn't think it would be possible to wipe the efs partition doing a sim unlock but during a bootloader unlock it is definitely possible. Just google efs partition, i9505 efs partition and things along those lines. You might be able to find out why it's gone.

[ViperGTX88]

The unlock was done buy some  guy at the mall that was also selling cases and stuff for phones. Thx for the tip, i will google that when i get a chance to later in the afternoon. 

[ViperGTX88]

Update: I got it fixed using the method used in this like http://www.droidviews.com/backup-and-restore-lost-imei-on-samsung-galaxy-devices-without-root/. Thx markymark for recomending to try searching efs partition, I found the link with that search.