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Hey, I started flashing custom ROMs to my S4 (GT-i9506) about three months ago and everything was okay, but just recently I tried to return to my stock i9506 4.4.2 ROM and i succeeded in doing so, but afterwards I noticed that my S4 wasn't recognising my SIM.
At first I assumed it was a faulty SIM card (my SIM had multiple scratches on it), so I bought a new SIM card and yet the problem persisted. I tried to make calls and etc but my phone retuned an error stating, "Mobile network not available". I decided to check my settings and I noticed that my Baseband Version was labelled as "unkown".
After seeing this I searched for solutions online and came upon S4 service codes, I used the "*#06#" code and it returned a message saying "IMEI... null/null". Yet again I searched for a solution and came upon none to help me
I soon found out that my problem had something to do with the EFS parition in my phone. I re-rooted and installed ES File Explorer and opened up my EFS folder. In her everything looked ordinary, but then I noticed that my .nv_data file was missing, which, if i remember correctly, is responsible for important functions such as the IMEI and Baseband
I tried every solution I could find online and nothing fixed my issue - I'm only writing this as it's the only option which doesn't require me to go to my local Samsung Experience Store.
TL;DR
My GT-i9506 doesn't know its own IMEI and Baseband version and I'm all out of solutions at this point.
Am I better off going to the Samsung Store?
BUMP
More BUMP
Please help me
BUMP
IMEI no longer inhabits the EFS folder, so you're not missing anything. Flash the modem for your ROM again through Odin and see if that corrects the issue. If it does, use Wanam's EFS Backup to properly backup the hidden partitions where the IMEI is now stored.
Flash the latest stock lollipop rom for your device and you will be fine. Sounds to me you were on Lollipop stock and you downgraded to Kitkat.
Strephon Alkhalikoi said:
IMEI no longer inhabits the EFS folder, so you're not missing anything. Flash the modem for your ROM again through Odin and see if that corrects the issue. If it does, use Wanam's EFS Backup to properly backup the hidden partitions where the IMEI is now stored.
Click to expand...
Click to collapse
So then where is the IMEI stored? I'd just like to know for future purposes
The modem didn't fix it
Lennyz1988 said:
Flash the latest stock lollipop rom for your device and you will be fine. Sounds to me you were on Lollipop stock and you downgraded to Kitkat.
Click to expand...
Click to collapse
Tried this too, but failed also
I don't know which of the hidden partitions the IMEI is stored in. I only know where it's not, and that's not in the EFS folder. However, based on the partition names, the IMEI is likely stored in any or all of the following partitions: m9kefs1, m9kefs2, m9kefs3. While unlikely, it could also be stored in the following partitions: modemst1, modemst2.
Strephon Alkhalikoi said:
I don't know which of the hidden partitions the IMEI is stored in. I only know where it's not, and that's not in the EFS folder. However, based on the partition names, the IMEI is likely stored in any or all of the following partitions: m9kefs1, m9kefs2, m9kefs3. While unlikely, it could also be stored in the following partitions: modemst1, modemst2.
Click to expand...
Click to collapse
Would it be possible to mount any of those partitions?
jakeshekukanneh said:
Tried this too, but failed also
Click to expand...
Click to collapse
I need more info then this.
jakeshekukanneh said:
Would it be possible to mount any of those partitions?
Click to expand...
Click to collapse
You can try it, but I doubt you'll find anything human readable within them.
Lennyz1988 said:
I need more info then this.
Click to expand...
Click to collapse
I flashed the stock I9506XXDOA6 NEE ROM in Odin once more but my IMEI remained null.
So I decided to extract the modem.bin after installing the Lollipop ROM and it too didn't work
jakeshekukanneh said:
I flashed the stock I9506XXDOA6 NEE ROM in Odin once more but my IMEI remained null.
So I decided to extract the modem.bin after installing the Lollipop ROM and it too didn't work
Click to expand...
Click to collapse
Maybe I didn't elaborate enough....
Try This Maybe This Help!!
use samsung kies fimeware upgrade and instalition then it waant youre imei or s/n and its rightet under battry
Note: Do That in download Mode
I've already tried that multiple times though. Thanks for the suggestion however
Sent from my GT-I9506 using XDA Free mobile app
Strephon Alkhalikoi said:
I don't know which of the hidden partitions the IMEI is stored in. I only know where it's not, and that's not in the EFS folder. However, based on the partition names, the IMEI is likely stored in any or all of the following partitions: m9kefs1, m9kefs2, m9kefs3. While unlikely, it could also be stored in the following partitions: modemst1, modemst2.
Click to expand...
Click to collapse
Hi, I used to use Optimus G, it has IMEI in m9efs* and Modem in modem, modemst*. I never had IMEI problems but on S4 it is really scary. Will backing up EFS in TWRP, manually dd'ing EFS, modemst*, m9kefs* block10 make me stay on safe side?
Sent from my GT-I9505
Just use Wanam's EFS Backup tool. It backs up all those partitions, so no need to run commands in a terminal.
jakeshekukanneh said:
I've already tried that multiple times though. Thanks for the suggestion however
Sent from my GT-I9506 using XDA Free mobile app
Click to expand...
Click to collapse
There was a guy that claimed that his method fixed it for him:
https://www.youtube.com/watch?v=LgPEIeXDPNA
Lennyz1988 said:
There was a guy that claimed that his method fixed it for him:
https://www.youtube.com/watch?v=LgPEIeXDPNA
Click to expand...
Click to collapse
Hey, I've already tried that method prior to posting, unfortunately it didn't work. I might just go see the Samsung Experience Store tomorrow
Hello
I got a problem with my oneplus 2. my sim 2 has imei=0
Baseband and sim 1 is alright.
tried restoring backup but didnt work
what can be done?
tried
1. full fastboot flash
2. installing rom via TWRP (zips)
3. eraseing persist and modemst1 and modemst2
4. switching sims.
IN all cases i get proper imei on sim 1 but 0 on sim 2
what i did before the problem arose?
1 i was on cm 13 by seraph. 8-3-2016 build
2. erased boot, system, recovery, userdate, cache,persist, and modem (including modemst1 and 2)
3. flashed boot,system,recovery,userdata,cache,persist and non-hlos from stock.
Any help?
tbiwalkar said:
Hello
I got a problem with my oneplus 2. my sim 2 has imei=0
Baseband and sim 1 is alright.
tried restoring backup but didnt work
what can be done?
tried
1. full fastboot flash
2. installing rom via TWRP (zips)
3. eraseing persist and modemst1 and modemst2
4. switching sims.
IN all cases i get proper imei on sim 1 but 0 on sim 2
what i did before the problem arose?
1 i was on cm 13 by seraph. 8-3-2016 build
2. erased boot, system, recovery, userdate, cache,persist, and modem (including modemst1 and 2)
3. flashed boot,system,recovery,userdata,cache,persist and non-hlos from stock.
Any help?
Click to expand...
Click to collapse
Please devs - @Seraph08 , @Grarak @benschhold , @David_Vaz , @AuxXxilium , @sewer56lol , @matitorres07 , @regalstreak , @Raja.M .
Im really sorry for tagging you all, but i believe that you all are the best devs for the device. I badly need both my sims active and there is no Oneplus service center around. It would be really great that someone helps me out before this post or my xda account gets deleted. PLEASE HELP!
Have you tried http://forum.xda-developers.com/oneplus-2/general/guide-official-stock-reset-to-oos-2-2-0-t3290707 ?
voron00 said:
Have you tried http://forum.xda-developers.com/oneplus-2/general/guide-official-stock-reset-to-oos-2-2-0-t3290707 ?
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Click to collapse
Yes sir! no luck
Send it back to the oem. If you didn't make the proper backup then that is your only option.
I do hav a backup
zelendel said:
Send it back to the oem. If you didn't make the proper backup then that is your only option.
Click to expand...
Click to collapse
I do have a EFS (rather entire stock) TWRP Backup taken when the phone was fully functional !
It gets restored successfully but still the same problem persists.
tbiwalkar said:
I do have a EFS (rather entire stock) TWRP Backup taken when the phone was fully functional !
It gets restored successfully but still the same problem persists.
Click to expand...
Click to collapse
Stock rom backups never really work. Sounds like the partition is corrupted. Send it back. They may charge you for a new board. Not sure on that though.
zelendel said:
Stock rom backups never really work. Sounds like the partition is corrupted. Send it back. They may charge you for a new board. Not sure on that though.
Click to expand...
Click to collapse
NO way to repair partition?
tbiwalkar said:
NO way to repair partition?
Click to expand...
Click to collapse
Only way I am aware of is with a jtag system. Which is around 1500 and you have to have the software for it. This is why it's always smart to make a back up of the efs folder.
Let alone on dual sim device. This is why Google doesn't officially support dual sim devices.
zelendel said:
Only way I am aware of is with a jtag system. Which is around 1500 and you have to have the software for it. This is why it's always smart to make a back up of the efs folder.
Let alone on dual sim device. This is why Google doesn't officially support dual sim devices.
Click to expand...
Click to collapse
I have the EFS backup sir! but that isnt helpinn
tbiwalkar said:
I have the EFS backup sir! but that isnt helpinn
Click to expand...
Click to collapse
Then to be honest I don't know what to say. Dual sim devices are not available in my part of the world as they are useless. You are gonna end up sending it back.
@tbiwalkar i have no idea of this actually as im from samsung descent and i know how to restore imei of samsung devices ( i have a guide for my previous phone in case youd like to check out, see my profile> all threads )
Sent from my ONE A2003 using Tapatalk
tbiwalkar said:
Hello
I got a problem with my oneplus 2. my sim 2 has imei=0
Baseband and sim 1 is alright.
tried restoring backup but didnt work
what can be done?
tried
1. full fastboot flash
2. installing rom via TWRP (zips)
3. eraseing persist and modemst1 and modemst2
4. switching sims.
IN all cases i get proper imei on sim 1 but 0 on sim 2
what i did before the problem arose?
1 i was on cm 13 by seraph. 8-3-2016 build
2. erased boot, system, recovery, userdate, cache,persist, and modem (including modemst1 and 2)
3. flashed boot,system,recovery,userdata,cache,persist and non-hlos from stock.
Any help?
Click to expand...
Click to collapse
2 more findings.
1. I cant flash CM 13 not. the phone just bootloops.
2. Fingerprint is dead (Its behaving the same like it used to when CM 13 has the fingerprint apk but no drivers.)
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
hi today my phone brick (i was messing around with SUPERXE) so i followed a ytb tutorial and went back to stock android (oreo). It worked but when i turn on my device it didnt recognize my sim card. I check my imei with *#06# but the phone app crashes. I cant find the imei in settings. The sim card works in other phones. Help??
Sorry for my bad English. Matías
mati.lebaz said:
hi today my phone brick (i was messing around with SUPERXE) so i followed a ytb tutorial and went back to stock android (oreo). It worked but when i turn on my device it didnt recognize my sim card. I check my imei with *#06# but the phone app crashes. I cant find the imei in settings. The sim card works in other phones. Help?? Sorry for my bad English. Matías
Click to expand...
Click to collapse
Your EFS partitions may have been corrupted or wiped. Do you have any TWRP nandroid backups? If so, you may have a backup of those two partitions modemst1, modemst2. See this article for more options.
thanks!!
v12xke said:
Your EFS partitions may have been corrupted or wiped. Do you have any TWRP nandroid backups? If so, you may have a backup of those two partitions modemst1, modemst2. LINK for more options.
Click to expand...
Click to collapse
i solved it with the terminal in the recovery
IMEI unknown on Nexus 6p
How did you solve it?
Getting error and no imei and no network on one plus 6t...after using msm tool in smt mode please some one help me looks like nvram partition / efs / persist or some critical partition was corrupted or missing please help me i dont wanna to loose this phone please help me i swear i wont messing again ...please help me XDA
newborn0089 said:
Getting error and no imei and no network on one plus 6t...after using msm tool in smt mode please some one help me looks like nvram partition / efs / persist or some critical partition was corrupted or missing please help me i dont wanna to loose this phone please help me i swear i wont messing again ...please help me XDA
Click to expand...
Click to collapse
Unless you have a Backup of your Modemst1 & Modemst2 somewhere there is nothing that you can do. Other than sending the phone to OnePlus for repair. That's the only way I'm afraid.
DarthVader said:
Unless you have a Backup of your Modemst1 & Modemst2 somewhere there is nothing that you can do. Other than sending the phone to OnePlus for repair. That's the only way I'm afraid.
Click to expand...
Click to collapse
its out of warranty and they saying to change motherboard :crying:
another op6t backup will work??
newborn0089 said:
its out of warranty and they saying to change motherboard :crying:
another op6t backup will work??
Click to expand...
Click to collapse
No. The IMEI is unique for every device. So the backup of another 6T won't work. I'm afraid you'll have to get the motherboard replaced.
DarthVader said:
No. The IMEI is unique for every device. So the backup of another 6T won't work. I'm afraid you'll have to get the motherboard replaced.
Click to expand...
Click to collapse
i know imei are different for different devices but i can write mine real imei after flashing backup of another device i already did it in one plus 5 in mines friend ....only need working backup and i guess i can manage to run my phone again with my real id
newborn0089 said:
i know imei are different for different devices but i can write mine real imei after flashing backup of another device i already did it in one plus 5 in mines friend ....only need working backup and i guess i can manage to run my phone again with my real id
Click to expand...
Click to collapse
I have a regular 6T. It won't work.
DarthVader said:
I have a regular 6T. It won't work.
Click to expand...
Click to collapse
i readed many times on xda that one plus 6t and mclaren rom are sames only important changes in kernel for pickup warp charging ...hope i am not wrong !!
NV backup invalid
Dude my phone was in warrenty nd i have some problem like you now what should i do i have OnePlus 7 thus i need to pay mother board charge to center cause it's hardware issue plss help me i m dying :crying::crying::crying::crying