Database Users

[guide] no imei no efs backup

I flashed some ROMS n which corrupted the IMEI *#06# showed NULL no sim detection no wifi or bluetooth
i had twrp backup which had modemst1 restored it but no luck
i found many of them said flash color os n it will solve the problem, but due to low bandwidth i was not able to download the
so here is the solution flash the below file in fastboot n done i got my imei back
everything woks wifi bluetooth sim detection network all
unzip you'll get modemst.bin flash it
fastboot flash modemst1 modemst.bin
i was on cm12.1 -YOG4PAS1N0
hope it helps anyone who has imei null

Is this for all the OPO mobiles? Aren't these modemst files mobile specific? (I mean different for each OPO?)
Im facing the same issue now. I was on Calkulin's OPO rom CM12.1 based. I took a backup in TWRP and then I flashed CM13 nightlies. Everything is fine. But still I took a backup in perfectly working condition. Now due to high battery drain, I wanted to revert back to CM12.1 backup and restored it in TWRP. That's it. No IMEI, No mobile signal. Wifi, Bluetooth and NFC are working fine.
This is second time. I dont remember what I did first time, but I did not struggle this much. I guess I flashed CM12 rom and everything was normal. But now, I even tried Color OS but no luck.
I want to try your modemst, but worried if it is phone specific.

chilukuriabhiram said:
Is this for all the OPO mobiles? Aren't these modemst files mobile specific? (I mean different for each OPO?)
Im facing the same issue now. I was on Calkulin's OPO rom CM12.1 based. I took a backup in TWRP and then I flashed CM13 nightlies. Everything is fine. But still I took a backup in perfectly working condition. Now due to high battery drain, I wanted to revert back to CM12.1 backup and restored it in TWRP. That's it. No IMEI, No mobile signal. Wifi, Bluetooth and NFC are working fine.
This is second time. I dont remember what I did first time, but I did not struggle this much. I guess I flashed CM12 rom and everything was normal. But now, I even tried Color OS but no luck.
I want to try your modemst, but worried if it is phone specific.
Click to expand...
Click to collapse
try oxygen os...

dude6595 said:
try oxygen os...
Click to expand...
Click to collapse
Thank you. I will try it tonight and update.. Hectic day in office above this OPO ****
But any idea on the modemst files by Chetan180? Can we try that on any OPO?

chilukuriabhiram said:
Thank you. I will try it tonight and update.. Hectic day in office above this OPO ****
But any idea on the modemst files by Chetan180? Can we try that on any OPO?
Click to expand...
Click to collapse
Normally you're supposed to flash your own modemst1 and modemst2 bin files that you backed up via terminal emulator commands. I'm assuming that's some random persons modem files that the OP flashed to get network back. Try this guide
http://forum.xda-developers.com/oneplus-one/help/fix-brickloop-audio-fx-fc-efs-corrupt-t2879061
Do the steps mentioned to try and retrieve IMEI. Only if all others solutions fail should you try the last two commands in the guide;
fastboot erase modemst1
fastboot erase modemst2
then flash a CM Nightly and see if it gets your phone back to working normally

chilukuriabhiram said:
Is this for all the OPO mobiles? Aren't these modemst files mobile specific? (I mean different for each OPO?)
Im facing the same issue now. I was on Calkulin's OPO rom CM12.1 based. I took a backup in TWRP and then I flashed CM13 nightlies. Everything is fine. But still I took a backup in perfectly working condition. Now due to high battery drain, I wanted to revert back to CM12.1 backup and restored it in TWRP. That's it. No IMEI, No mobile signal. Wifi, Bluetooth and NFC are working fine.
This is second time. I dont remember what I did first time, but I did not struggle this much. I guess I flashed CM12 rom and everything was normal. But now, I even tried Color OS but no luck.
I want to try your modemst, but worried if it is phone specific.
Click to expand...
Click to collapse
i also did the same like u, just flash the file
i extracted it from one color os recovery software .. and done

chetan180 said:
i also did the same like u, just flash the file
i extracted it from one color os recovery software .. and done
Click to expand...
Click to collapse
Oh cool! So you mean that these modemst files are not even your's? And your phone is having the same IMEI as that on your box?

It worked finally!
https://forums.oneplus.net/threads/no-imei-and-no-efs-backup.322534/
This link worked for m!!
Thank you all. BTW I did not try the modemst files in this thread.

chilukuriabhiram said:
Oh cool! So you mean that these modemst files are not even your's? And your phone is having the same IMEI as that on your box?
Click to expand...
Click to collapse
yeah

Well, I wish I would have ran into this a few months ago. I flashed everything except my neighbors and didn't have any luck. Thanks for sharing this.

OEM_NV_BACKUP Invalid, sim1 has imei sim 2 doesnt and No signal

Ok I have been an xda member for almost 8 years and this is my first thread , I have always found through search the answer to my problems with phones, but I cant for the life of me come up with anything on this. After ota upgrade to oxygenos 2.1.2 I lost lte (att/cricket) at first I thought it was imei related on att side, nope, then I tried reflashing modem manually through fastboot and somewhere in the procees went back and I had to reflash using hard bick method, after that I lost both imei and no signal , after a bunch of tinkering ive managed to get sim1 imei back but no signal!???? any ideas?

Same issue i got. Have sent a note to Support @ OnePlus. I have a Team Viewer session on coming sunday. Will let you know how it goes

hopefully it is software "fixable" and you we dont have to send it in to a repair center

Try to reflash full rom with firmware via fastboot.

acmerw said:
Try to reflash full rom with firmware via fastboot.
Click to expand...
Click to collapse
All options tried. Only one SIM restores successfully. Hopefully OnePlus support team fixes it. Will keep you posted.

ive Hard brick restored, manually fastboot flashed each partition, efs backup restored through twrp

fesar said:
All options tried. Only one SIM restores successfully. Hopefully OnePlus support team fixes it. Will keep you posted.
Click to expand...
Click to collapse
any news?

bump

androidbrick.com

[HELP] One plus 2 IMEI Showing 0

Hello,
I have One plus 2 64 Gb its IMEI is 0
i have tried many roms Still its 0
also Tried to change imei using QPST, efs Pro, cdma tool, whenever i write its showing NV ITEMS Read Only
i have successfully installed diag and normal drivers.
and device is showing in under port tab.
please help me to remove that write protection
( I Dont Have any EFS Backup)
No networks are coming
Please Help
(Sorry For Worst English ):angel:

Just use the ordinary factory restore using the factory qualcomm tool from the "how to factory restore my phone" thread. That way your phone should be back to the state it came in.

Still its showing 0
is There any kernel that removed write protection from nv items? I want cmto change the imei permently with Original One
or xposed installer will change the whole Imei or just masks?

BlueLemon1892 said:
Still its showing 0
is There any kernel that removed write protection from nv items? I want cmto change the imei permently with Original One
or xposed installer will change the whole Imei or just masks?
Click to expand...
Click to collapse
i think QPST configuration works, if its read only there is some other error
also a twrp backup of efs from some other phone will maybe fix it (dont ask for it)

Have you tried entering fastboot mode and doing a modemst erase? That fixed one of my IMEI numbers some time ago when I had the same problem that you detail. More info: http://forum.xda-developers.com/showpost.php?p=65712557&postcount=3

i have used fastboot to earse modemst files
but it worked not fully whenever i reboot 1st imei is 0 and second one is shown again after i reboot first will show second one is 0
tired of this is there any way to edit nv items write protection by editing kernel?

even i have flashed one of my friends efs backup but the problem is still continued

BlueLemon1892 said:
even i have flashed one of my friends efs backup but the problem is still continued
Click to expand...
Click to collapse
Contact OnePlus support and then tell us the solution they gave you.

no reply From Them

no reply From Them

After using fastboot erase command on modemst1 & modemst2,
My OP2's both sim slots stopped working,
So I flashed new+modem.zip by benschhold.
Which made sim-slot-1, work again !
But sadly, sim-slot-2 shows as "0", when checking through *#06#.
If somebody knows, how to write IMEI on OP2,
let me know.

bump..same problem

By bit of searching i've Found That firmware part is readonly, its not accepting any permission related read and Write. is there any way to rewrite it.?
or by modding kernel can we remove write protection? reply asap.

osr.arora said:
After using fastboot erase command on modemst1 & modemst2,
My OP2's both sim slots stopped working,
So I flashed new+modem.zip by benschhold.
Which made sim-slot-1, work again !
But sadly, sim-slot-2 shows as "0", when checking through *#06#.
If somebody knows, how to write IMEI on OP2,
let me know.
Click to expand...
Click to collapse
U can write ur IMEI by using QPST Tools
Sent from my ONE A2003 using XDA-Developers mobile app

Jyoti_re said:
U can write ur IMEI by using QPST Tools
Sent from my ONE A2003 using XDA-Developers mobile app
Click to expand...
Click to collapse
No qpst tool Giving Error while writing
(NV_ITEM READ ONLY)
Even i've tried cdma workshop, efs pro they also giving same problem

BlueLemon1892 said:
No qpst tool Giving Error while writing
(NV_ITEM READ ONLY)
Even i've tried cdma workshop, efs pro they also giving same problem
Click to expand...
Click to collapse
my phone faced random reboot since the IMEI2 lost.

lockmunk said:
my phone faced random reboot since the IMEI2 lost.
Click to expand...
Click to collapse
Which one OP2?

Any solution, for writing IMEI#2 for my OnePlus 2 ?
Phone is out of warranty,
No efs backup.
Qualcomm restore tool, didn't fix this problem either.

I know this probably won't help here BC I don't think Color OS was made for the OPO2. But I had this exact problem with my OP One... Saw on XDA where someone said to flash ColorOS and it fixed the problem. I have no idea why this would work but it did.
---------- Post added at 08:40 AM ---------- Previous post was at 08:39 AM ----------
Is it possible that flashing Hydrogen OS could have the same effect on the OP2?

there is a usb dongle that can fix this thing, but i'm not too sure whether it can fix imei2 for our op2 or not
if someone reported works, i'm willing to buy this dongle also rather than use the phone faced the problem random reboot because of no imei2.
http://www.ebay.com/itm/Ultimate-Mu...833083?hash=item1c6aea6f3b:g:zsQAAOSwUUdXDja5

Need EFS Backup of WORKING Nexus 6P

Google will not admit this but there were major security flaws in factory images before jan,2017.
Read for yourself below article.
Link: https://www.google.com/amp/www.tech...d-nexus-6-patch-fixes-modem-vulnerability.htm
They patched it in Jan. But effected users like us(who got effected on 2016) got proper fu***.
The result : NO SERVICE but detects sim card.
Kindly.....Plz....plz...plz....make a copy of your efs and provide it in this thread. Please also mention what factory image/build number u are using.

No one will give you his EFS backup because its unique for each phone..so you cant use someone else EFS on your phone...

scrin378 said:
No one will give you his EFS backup because its unique for each phone..so you cant use someone else EFS on your phone...
Click to expand...
Click to collapse
Hey,
Yes, you can use it... The.problem is: are you ok to give it to someone you don't know?
Cheers...

5.1 said:
Hey,
Yes, you can use it... The.problem is: are you ok to give it to someone you don't know?
Cheers...
Click to expand...
Click to collapse
Really?? Thats a big news for me its no problem do i know him or not.. How can you use someone else EFS/IMEI.. it would be 2 phones with same IMEI number..maybe it will work, but its like you use someone else ID card and present it like its yours..

scrin378 said:
Really?? Thats a big news for me its no problem do i know him or not.. How can you use someone else EFS/IMEI.. it would be 2 phones with same IMEI number..maybe it will work, but its like you use someone else ID card and present it like its yours..
Click to expand...
Click to collapse
Hey,
When the IMEI is corrupted on the software side, it still shows up using:
fastboot getvar all
So the IMEI is somehow corrupted on the EFS partition. How, I don't know. Seems like the EFS acts like a bridge between hardware/software. Of course, I could be wrong...
Some have tried but didn't succeed. Now, it's not the first time I see someone using another EFS backup and getting his IMEI back. I don't know why it would get "their"" original IMEI instead of the one included in the EFS backup either. But i guess they must all lie saying it fixed their device.
Cheers...

I have restored EFS using a backup from someone else's device EFS. It did not change my original imei.

parvezrobi said:
Google will not admit this but there were major security flaws in factory images before jan,2017.
Read for yourself below article.
Link: https://www.google.com/amp/www.tech...d-nexus-6-patch-fixes-modem-vulnerability.htm
They patched it in Jan. But effected users like us(who got effected on 2016) got proper fu***.
The result : NO SERVICE but detects sim card.
Kindly.....Plz....plz...plz....make a copy of your efs and provide it in this thread. Please also mention what factory image/build number u are using.
Click to expand...
Click to collapse
Still need an efs?

DEVILOPS 007 said:
Still need an efs?
Click to expand...
Click to collapse
Hi, I'm facing the same issue after 7.1.2 OTA no IMEI, baseband anymore, If you don't mind I would like to have it.

blckhwkone said:
Hi, I'm facing the same issue after 7.1.2 OTA no IMEI, baseband anymore, If you don't mind I would like to have it.
Click to expand...
Click to collapse
I'll share one soon for everyone here. I'm just a bit worried about security though as I don't know what happens and what data is stored in an efs backup.

blckhwkone said:
Hi, I'm facing the same issue after 7.1.2 OTA no IMEI, baseband anymore, If you don't mind I would like to have it.
Click to expand...
Click to collapse
Welcome to The tragic Club of network less Nexus 6P.. You are not alone here.

DEVILOPS 007 said:
I'll share one soon for everyone here. I'm just a bit worried about security though as I don't know what happens and what data is stored in an efs backup.
Click to expand...
Click to collapse
Down do it. The efs is device dependent. It will contain things like your imei. So even if restored on another device it will end up causing issues due to the same imei on different devices. It can also make it so things like WiFi don't work

zelendel said:
Down do it. The efs is device dependent. It will contain things like your imei. So even if restored on another device it will end up causing issues due to the same imei on different devices. It can also make it so things like WiFi don't work
Click to expand...
Click to collapse
Okay thank you, I had no clue about efs so I'll take your word on it.

Guys can anyone share efs so that I can restore and save my phone..I Have no signal ispitevof detection sim card...it shows no service.. But when I use jio it shows full signal..kindly help..

I had similar problem with my OnePlus X. Apparently I was saving and restoring my efs partion with every twrp backup which eventually caused it to become currupt. Thought my phone was toast until a friend on telegram suggested deleting modem1 and modem2 files with adb commands. Sounded more destructive then good but it actually worked sim was reading again and got full use of my phone. It's good to make backup of efs but only once. Not sure if this is the fix for every phone but works with OnePlus and Xiaomi.
How to Fix EFS from Bootloader Mode using Fastboot commands
Setup ADB and Fastboot on your PC.
Enable Developer options & USB debugging on your Android device.
Connect your device to the PC and open a command window on the PC.
Issue the following commands one by one:
adb reboot bootloader
fastboot erase modemst1
fastboot erase modemst2
fastboot reboot
Got my information from here

kach22 said:
I have restored EFS using a backup from someone else's device EFS. It did not change my original imei.
Click to expand...
Click to collapse
can send me plz your bakcup i need

find device storage corrupted your device is unsafe now

hey guys i recently flashed pixel experience on my redmi k20 but i decided to revert back to stock so i flashed latest stable version through mi flash but now i am getting "find device storage corrupted your device is unsafe now" notifications did i messed something up? and i had an unlocked bootloader but now i cant unlock it. the error i get is "you should wait until 30 days before you can unlock another device"

once you've unlocked the bootloader, you can unlock it anytime again and as often as you want. have tested this several times, just once again with the same mi account unblock - without waiting.
how did you leave MIUI installed with MIflash and lock down on the bottom right?

You somehow corrupted your persist partition. When you are able to unlock again, you can fix that by flashing persist.img from fastboot image to persist partition via TWRP. You can't flash that via fastboot, that will not work. Be aware that you will loose Widevine L1 forever on MIUI (should still work on custom roms) unless you have a backup of your persist partition you can restore.

lucifer said:
hey guys i recently flashed pixel experience on my redmi k20 but i decided to revert back to stock so i flashed latest stable version through mi flash but now i am getting "find device storage corrupted your device is unsafe now" notifications did i messed something up? and i had an unlocked bootloader but now i cant unlock it. the error i get is "you should wait until 30 days before you can unlock another device"
Click to expand...
Click to collapse
Why did you leave the pixel experience ROM , wasn't it good . Just wanted to know because I want to flash it too

nill3bor said:
once you've unlocked the bootloader, you can unlock it anytime again and as often as you want. have tested this several times, just once again with the same mi account unblock - without waiting.
how did you leave MIUI installed with MIflash and lock down on the bottom right?
Click to expand...
Click to collapse
yup locked with mi flash with the lock option on bottom but can't unlock it again with the same id somehow now the phone is seen as new device

nckmml said:
You somehow corrupted your persist partition. When you are able to unlock again, you can fix that by flashing persist.img from fastboot image to persist partition via TWRP. You can't flash that via fastboot, that will not work. Be aware that you will loose Widevine L1 forever on MIUI (should still work on custom roms) unless you have a backup of your persist partition you can restore.
Click to expand...
Click to collapse
can service center fix that for me.?

Benfatica said:
Why did you leave the pixel experience ROM , wasn't it good . Just wanted to know because I want to flash it too
Click to expand...
Click to collapse
no its works great my poco f1 screen broke thats why i reverted back to miui on k20

lucifer said:
yup locked with mi flash with the lock option on bottom but can't unlock it again with the same id somehow now the phone is seen as new device
Click to expand...
Click to collapse
its not good?
but you have not created a backup of twrp?
but you can create a new account, because it's 7 days to unlock. but you can only unlock a phone every 30 days!
what did you do, why is the partition corrupt? that should not happen with the image!

nill3bor said:
its not good?
but you have not created a backup of twrp?
but you can create a new account, because it's 7 days to unlock. but you can only unlock a phone every 30 days!
Click to expand...
Click to collapse
no its not good
yes i created a backup but to flash twrp again i need unlocked bootloader
will try with new account
and can servce center fix this for me.?
And i just flashed with mi flash tool nothing else it works fine on my poco done several times already but somehow something went wrong

lucifer said:
no its not good
yes i created a backup but to flash twrp again i need unlocked bootloader
will try with new account
and can servce center fix this for me.?
Click to expand...
Click to collapse
create a new account, wait and after unlock flash the backup and report
MIUI works good or do you have problem? IMEI and MAC its ok?

nill3bor said:
create a new account, wait and after unlock flash the backup and report
MIUI works good or do you have problem? IMEI and MAC its ok?
Click to expand...
Click to collapse
Miui works fine except it can't sync with mi cloud
Imei and mac is fine
update : mi cloud sync works on new id

lucifer said:
Miui works fine except it can't sync with mi cloud
Imei and mac is fine
update : mi cloud sync works on new id
Click to expand...
Click to collapse
wait for unlock, flash partion here or flash a backup (partition)

Flash twrp persist.img

nill3bor said:
wait for unlock, flash partion here or flash a backup (partition)
Click to expand...
Click to collapse
Ok will wait for unlock and will update
Thanks for the help

Those that haven't flashed their persist partition and are rooted, are you able to look in there and see if there's any files or folders related to the widevine certification?

nill3bor said:
wait for unlock, flash partion here or flash a backup (partition)
Click to expand...
Click to collapse
If i flash partion that is not my backup will i lose widewine L1 on miui.?

lucifer said:
If i flash partion that is not my backup will i lose widewine L1 on miui.?
Click to expand...
Click to collapse
That's why I asked about IMEI, Bluetooth and sensors. But before you flash, try this one again and report.
Of course, twrp must be installed.
did you create a new account?
do you have less than 30 days wait now?
did you have a foreign backup fash before?
is the IMEI the same number as on the packaging?

nill3bor said:
That's why I asked about IMEI, Bluetooth and sensors. But before you flash, try this one again and report.
Of course, twrp must be installed.
did you create a new account?
do you have less than 30 days wait now?
did you have a foreign backup fash before?
is the IMEI the same number as on the packaging?
Click to expand...
Click to collapse
yes every sensor is working fine
yes i did create a new account
7 days wait now
what is foreign backup?
yes imei is same as on packaging
and can service center fix this for me.?

lucifer said:
yes every sensor is working fine
yes i did create a new account
7 days wait now
what is foreign backup?
yes imei is same as on packaging
and can service center fix this for me.?
Click to expand...
Click to collapse
thats ok, try this
if you do not have your own backup, I would not import it, because in the persist.img sensedata IMEI bluetooth etc stored in the partition
you just have to wait, then you try what was advised and report

nill3bor said:
thats ok, try this
if you do not have your own backup, I would not import it, because in the persist.img sensedata IMEI bluetooth etc stored in the partition
you just have to wait, then you try what was advised and report
Click to expand...
Click to collapse
ok i will wait try and report but will service center be able to solve this problem.?