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Null imei baseband = unknown

Discussion in 'Android Devices' started by Tweakforce_LG, Mar 8, 2016.

  1. Tweakforce_LG

    Tweakforce_LG Android Enthusiast
    Thread Starter

    I have a GT-I9505 and tried out the miui 4.4 patchrom flashed via twrp. The imei number went missing and i used odin to restore stock lollipop. Now it lists baseband unknown and IMEI null. Any fixes? I have the s/n and imei on the back of the phone
     

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    #1 Tweakforce_LG, Mar 8, 2016
  2. ironass

    ironass Extreme Android User

    It sounds as though you have a lost or corrupt, "/efs file".

    If you followed best practice when rooting or flashing ROMs and made nandroid backups prior to flashing, then you can restore that and it will replace/restore your, "/efs", file. See, #3.2 & #3.3 of [International] Rooting Galaxy S4 - Dummies Guide

    Alternatively, if you use a custom recovery and made a backup in the past, most will save a copy of this all important, "/efs", file to storage on your phone somewhere.

    How to Backup and Restore EFS / IMEI on Samsung Galaxy Devices – Did You Do It?

    If you do not have a backup you can try the method described here.. [GUIDE] Recover your IMEI in 9 steps.
     
    #2 ironass, Mar 8, 2016
  3. Tweakforce_LG

    Tweakforce_LG Android Enthusiast
    Thread Starter

    Unfortunately i have no efs backup, will try that method and let u know how it goes
     
    #3 Tweakforce_LG, Mar 8, 2016
    ironass likes this.
  4. Tweakforce_LG

    Tweakforce_LG Android Enthusiast
    Thread Starter

    Does anyone have tge I9505XXUHOE4 baseband that i can flash to my telecom nz i9505, thats the original baseband that came with it
     
    #4 Tweakforce_LG, Mar 8, 2016
  5. Tweakforce_LG

    Tweakforce_LG Android Enthusiast
    Thread Starter

    I can't find the special file in the efs folder
     
    #5 Tweakforce_LG, Mar 8, 2016
  6. Gendo420

    Gendo420 Android Enthusiast

    Flashing stock from http://www.sammobile.com should fix that
     
    #6 Gendo420, Mar 10, 2016
  7. Tweakforce_LG

    Tweakforce_LG Android Enthusiast
    Thread Starter

    Nah that didn't work. I ended up swapping the motherboard. Now I just need a new battery but anker don't ship to nz :(
     
    #7 Tweakforce_LG, Mar 10, 2016
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