[TOOL] Backup & Restore EFS on OnePlus 3

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ahmadhas

Member
Aug 27, 2014
5
5
Toronto
OnePlus 8
Don't restore using 'RESTORE EFS.bat'
I tried it on mine and it would not even detect my sim card. I was able to get it working by flashing the backup files through fastboot mode.
Here are the two simple commands you have to run (without quotes) in order to restore:
<Go to the directory where you have the backup .bin files>
"fastboot flash modemst1 modemst1.bin"
"fastboot flash modemst2 modemst2.bin"
 

juliusedward

Senior Member
Aug 10, 2010
337
149
OnePlus One
OnePlus 3
Don't restore using 'RESTORE EFS.bat'
I tried it on mine and it would not even detect my sim card. I was able to get it working by flashing the backup files through fastboot mode.
Here are the two simple commands you have to run (without quotes) in order to restore:
<Go to the directory where you have the backup .bin files>
"fastboot flash modemst1 modemst1.bin"
"fastboot flash modemst2 modemst2.bin"

Thanks a lot. I will update the OP :good:
 
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MarcoLK

Senior Member
Dec 2, 2014
702
543
Lübbecke
It works!
I backuped it successful!

I restored it and it works!
Tested sim card (calling, mobile data,...)
But i used the two commands:


fastboot flash modemst1 modemst1.bin

and

fastboot flash modemst2 modemst2.bin
 
Last edited:

pakidermo5000

Senior Member
Nov 13, 2011
342
379
Thanks a lot. I will update the OP :good:

Any chance you could send me a copy of the RFNV strings below?

<NvItem id="21003" subscriptionid="0" name="RFNV_LTE_B20_MAX_TX_POWER_DB10_I
<NvItem id="24243" subscriptionid="0" name="RFNV_LTE_B20_TX_MULTI_LIN_V3_DATA_I
<NvItem id="25227" subscriptionid="0" name="RFNV_LTE_B20_CA_BC_CONFIG_I
<NvItem id="27462" subscriptionid="0" name="RFNV_LTE_C0_B41_FBRX_MODE_VS_GAIN_VS_TEMP_VS _FREQ_I"
<NvItem id="28187" subscriptionid="0" name="RFNV_LTE_C0_B20_FBRX_MODE_VS_GAIN_VS_TEMP_VS _FREQ_Z_I"
<NvItem id="27408" subscriptionid="0" name="RFNV_LTE_C0_B20_FBRX_DC_CAL_VAL_I
 

vai04

New member
Nov 22, 2017
2
0
IT works

TESTED OK

NOTE- IT works on normal developer mode) for backup BUT for restore it works on fastboot mode ONLY
 
Last edited:

vai04

New member
Nov 22, 2017
2
0
IMEI issue

TWRP converts the files inwin format I need those bin files to edit in HEX editor still can't find IMEI to edit from there

My ph says your sim card doesn't allow to connect to this network I think its an IMEI issue as it detects sim search mannual network but doesn't register
Please help if you know any solution to this isssue Thanks in advance
 

pindonga123

Senior Member
May 28, 2015
51
1
I have some troubles when I wanna restored, say FAILED remote partition flashing is not allowed. I have unlock the bootloader
 

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  • 23
    Backup & Restore EFS on your OnePlus 3[Root Needed]

    To Backup:
    1) Enable USB Debugging Settings -> Developer Options -> USB Debugging.
    If Developer Options not found, go to Settings -> About Phone and tap the build number rapidly 6-7 times till a toast comes up saying 'You're now a developer' . You will now see 'Developer Options' above About Phone in settings.
    2) Download the attachment, extract it to a folder, connect your phone to PC through ADB, double click on 'BACKUP EFS.bat'. When it says 'Press any key...' just press any key on your keyboard! You'll see 'modemst1.bin' & 'modemst2.bin' files in the same folder where you extracted the ZIP, make more copies and backup of it! That's your EFS!
    DONE!
    Backup tested on OnePlus 3 OxygenOS version 3.1.2

    To Restore:
    1) Connect your phone in fastboot mode to PC, place your 'modemst1.bin' & 'modemst2.bin' in the extracted folder, double click on RESTORE EFS.bat'.

    DONE!

    I could not find any tool so far and apps from Play store fail to create a backup for OnePlus 3. So I have re-used the tool created by @Paresh Kalinani for OnePlus One and modified it to extract for OnePlus 3.

    Credits:
    @Paresh Kalinani for creating this simple tool for OnePlus One
    @Signor Rossi for providing the partition information
    @ahmadhas for testing restore
    4
    Tested and can confirm Backup is working.
    Does not even need to boot into fastboot :)

    Like it
    4
    Don't restore using 'RESTORE EFS.bat'
    I tried it on mine and it would not even detect my sim card. I was able to get it working by flashing the backup files through fastboot mode.
    Here are the two simple commands you have to run (without quotes) in order to restore:
    <Go to the directory where you have the backup .bin files>
    "fastboot flash modemst1 modemst1.bin"
    "fastboot flash modemst2 modemst2.bin"
    2
    Glad that I could help and thanks for the tool. Will test it later today, when I got a Computer near me

    Gesendet von meinem OnePlus 3
    2
    It works!
    I backuped it successful!

    I restored it and it works!
    Tested sim card (calling, mobile data,...)
    But i used the two commands:


    fastboot flash modemst1 modemst1.bin

    and

    fastboot flash modemst2 modemst2.bin