[TOOL] Backup & Restore EFS on OnePlus 3

ahmadhas

Member
Aug 27, 2014
5
5
0
Toronto
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
334
147
73
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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Roykooiman

Senior Member
May 26, 2015
385
53
0
21
Andijk
excuse me what is EFS sorry for this newbie question
A EFS backup is a backup of your IMEI. A IMEI is unique on every device. U might lose it during flashing some bad file or bricking your phone. If u lose it it means that it can't read any Sim ever again so u can't make calls on it.

Verstuurd vanaf mijn ONEPLUS A3003 met Tapatalk
 
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pakidermo5000

Senior Member
Nov 13, 2011
342
379
0
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
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
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