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[Q] No Radio Signal on Nexus 5 32 gb after restoring from TWRP back up from 16gb N5

I did a TWRP nandroid backup on my nexus 5 16gb model. I then transferred it to my 32gb Nexus 5 model and tried restoring from TWRP. Now my phone has no signal. Help please?
I think it might have something to do with the parition of the IMEI? Any help would be great thanks!!!

Did the nandroid include the efs partition? If it did you're screwed

Unless he manually checked efs he should be okay.
Sent from my Nexus 5 using Tapatalk
---------- Post added at 07:52 PM ---------- Previous post was at 07:51 PM ----------
Valdeck said:
Unless he manually checked efs he should be okay.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Also would flashing a factory image redo the era?
Sent from my Nexus 5 using Tapatalk

Hi so I cut my losses and did a RMA. For future reference if I do a TWRP nandroid backup and I DON"T CHECK EFS box and i transfer the back up to my new nexus 5 phone. It should be okay?

khoadpham said:
Hi so I cut my losses and did a RMA. For future reference if I do a TWRP nandroid backup and I DON"T CHECK EFS box and i transfer the back up to my new nexus 5 phone. It should be okay?
Click to expand...
Click to collapse
Yes, just backup data

So leave all the boxes that are default unchecked, UNCHECKED?

jd1639 said:
Yes, just backup data
Click to expand...
Click to collapse
Yes and uncheck system and boot

Atta boy, make your problem google's.
good day.

chopper the dog said:
Atta boy, make your problem google's.
good day.
Click to expand...
Click to collapse
Agreed

Quick question, could you explain to me what is backed up when system and boot is checked, please?

khoadpham said:
Hi so I cut my losses and did a RMA. For future reference if I do a TWRP nandroid backup and I DON"T CHECK EFS box and i transfer the back up to my new nexus 5 phone. It should be okay?
Click to expand...
Click to collapse
U can back up efs just dont restore efs from one device to another in the radio thread there are many ppl with this problem.

Why are people messing with EFS backup to begin with?
Seems like the need to backup EFS is causing more dumbass errors than anything these days....
Sent from my Nexus 5 using Tapatalk

Well its really user error. If you don't know what something is, learn about it before messing something up.
Would a factory image restoration fix a device with messed up efs partition?
I never had efs issues with my galaxy nexus, but I'd like to know the answer.
Sent from my Xiaomi MI2S

Well dees troy said in the twrp tread that you have to change the serial code of the backup to restore on a deferent device so I don't really feel sorry for ppl doing this I would never restore from another device that's just asking for trouble. @_jordan_ no there's no way to fix it

Yeah no kidding. Its a user inflicted problem.
Sent from my MI 2SC

IMEI=0 - how to enter working IMEI?

Hi everyone & thanks for reading this!
I bought 2 new, unused Nexus 5 as presents for my sisters for Christmas (not via playstore, but via a reseller. Still: new, sealed, unused.)
I unlocked, installed a custom recovery, rooted both devices without problems, then set up one in a smartphone-newbie-friendly way, which took quite some time. Then, to save me some time, I fear I made quite a big mistake: I made a nandroid-backup of the newly-setup device and restored/installed it on the second nexus (so I wouldn't have to change all the settings again, install apps, etc).
Unfortunately, this seems to have erased the IMEI on the second device (it shows as IMEI=0), so I can't connect to any cell service. Some googling leads me to believe that this might be due to a corrupt/missing EFS-folder, which, second mistake, I did NOT make a backup of beforehand. I know, it's my own fault - my thinking was: why backup, there's nothing backupworthy on the device *yet*.
FML. :crying:
I am not sure if the phone is still in warranty (and even if it was - I guess I voided that by unlocking/rooting?!). I want to re-iterate that I own both devices LEGALLY, I have the bill, I have the original sticker with the original IMEI - I just need a way to re-enter it. Any dialer-code for that? Any modify-able EFS-backups? Any other way?
Thanks in advance!
PS: tried so far & found useless: other simcard (not working) & simcard in other phone (working), so it's a device-issue; factory-reset;

Try fastboot flashing the cache.img from the factory image.

jd1639 said:
Try fastboot flashing the cache.img from the factory image.
Click to expand...
Click to collapse
thanks for the super-quick reply jd1639!
to make sure I understand you correctly:
I can use the factory image from
https://dl.google.com/dl/android/aosp/hammerhead-kot49h-factory-02006b99.tgz
(nexus 5, android 4.4.2), extract the cache.img from there & flash that via fastboot? (or would it have to be a factory image of this very device - which I do not have, unfortunately)
and, just for my understanding: how does that restore the imei? I mean, the factory image itself (or it's cache) can't really contain MY imei. does this just delete the invalid imei & force the phone to get it's original imei from some other, not yet overwritten source? e.g. hardware?

Yes fastboot flash the cache.img from the factory image is a known fix for this issue. Something has corrupt your cache causing the imei to not display properly
Sent from my Nexus 5 using Tapatalk

Thank you for clarifying, rootSU - that gives me hope.
I will try tomorrow & hopefully report success

Just tried this (twice) - unfortunately no success, IMEI is still 0
downloaded factory image, verified md5, extracted cache.img, flashed in fastboot; every step successful - final result is still IMEI=0. Tried again, this time erasing cache beforehand for good measure - still IMEI 0.
What else can I try?
PS: this seems to be the only issue - no hw-problems or similar. directly after boot, the device seems to connect to a mobile network for a second, then gets kicked out (due to missing/invalid IMEI, I suppose).

RogerG said:
Just tried this (twice) - unfortunately no success, IMEI is still 0
downloaded factory image, verified md5, extracted cache.img, flashed in fastboot; every step successful - final result is still IMEI=0. Tried again, this time erasing cache beforehand for good measure - still IMEI 0.
What else can I try?
PS: this seems to be the only issue - no hw-problems or similar. directly after boot, the device seems to connect to a mobile network for a second, then gets kicked out (due to missing/invalid IMEI, I suppose).
Click to expand...
Click to collapse
Did you use TWRP for the original nandroid backup that you restored on the new one? If so, you may have backed up, and consequently flashed the EFS from the original N5 to the new one. If so, I hate to say this, but I don't think there's any hope of getting the IMEI back on the new one...

RogerG said:
Just tried this (twice) - unfortunately no success, IMEI is still 0
downloaded factory image, verified md5, extracted cache.img, flashed in fastboot; every step successful - final result is still IMEI=0. Tried again, this time erasing cache beforehand for good measure - still IMEI 0.
What else can I try?
PS: this seems to be the only issue - no hw-problems or similar. directly after boot, the device seems to connect to a mobile network for a second, then gets kicked out (due to missing/invalid IMEI, I suppose).
Click to expand...
Click to collapse
I had a problem with my phone IMEI (Nexus 4) before. It would say unknown. The reason why was I flashed a bad radio and boot loader version. So what I did was find a thread on the N4 section for the right radio and bootloader. I'm not exactly sure if this will work on your part, but I don't think it'll hurt to try. Oh and maybe reflash the factory image.
Sent from a potato
---------- Post added at 12:47 AM ---------- Previous post was at 12:44 AM ----------
Sorry for double post. Check this link out and go to the second post talking about IMEI. Idk if this will help you out. Good luck
http://forum.xda-developers.com/showthread.php?t=2510966
Sent from a potato

charesa39 said:
Did you use TWRP for the original nandroid backup that you restored on the new one? If so, you may have backed up, and consequently flashed the EFS from the original N5 to the new one. If so, I hate to say this, but I don't think there's any hope of getting the IMEI back on the new one...
Click to expand...
Click to collapse
yes, that's precisely what I did.
That's why I had little hope of restoring the original IMEI and was instead asking in my original post for a way to enter it anew (since I KNOW what it should be).

CellPhish said:
I had a problem with my phone IMEI (Nexus 4) before. It would say unknown. The reason why was I flashed a bad radio and boot loader version. So what I did was find a thread on the N4 section for the right radio and bootloader. I'm not exactly sure if this will work on your part, but I don't think it'll hurt to try. Oh and maybe reflash the factory image.
Sent from a potato
---------- Post added at 12:47 AM ---------- Previous post was at 12:44 AM ----------
Sorry for double post. Check this link out and go to the second post talking about IMEI. Idk if this will help you out. Good luck
http://forum.xda-developers.com/showthread.php?t=2510966
Sent from a potato
Click to expand...
Click to collapse
thanks I will try this (even though I think my problem is not related to radio/bootloader and I am generally skeptical about my chances of "restoring" IMEI, as opposed to "manually entering/modifying it"). Still, willing to try anything, thanks for the idea!

RogerG said:
thanks I will try this (even though I think my problem is not related to radio/bootloader and I am generally skeptical about my chances of "restoring" IMEI, as opposed to "manually entering/modifying it"). Still, willing to try anything, thanks for the idea!
Click to expand...
Click to collapse
If all fails you can try to contact LG service and tell them your situation. Though its not good to lie, just tell them you got the IMEI=0 problem, they'll say its a hardware problem and will replace the motherboard(if your device is on warranty)
Sent from a potato

You'll probably have a hard time here finding anyone to help you manually entering or modifying the imei.

rootSU said:
Yes fastboot flash the cache.img from the factory image is a known fix for this issue. Something has corrupt your cache causing the imei to not display properly
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
The IMEI is stored in the EFS partition, not the cache partition.
RogerG said:
yes, that's precisely what I did.
That's why I had little hope of restoring the original IMEI and was instead asking in my original post for a way to enter it anew (since I KNOW what it should be).
Click to expand...
Click to collapse
Sounds like you turned the phone into a $400 paperweight. TWRP backs up and restores the EFS partition by default, and each device has a unique EFS partition, which contains the IMEI among other things. I don't know of a way of manually restoring the EFS data. This is unfortunately a $400 lesson for people who tinker without first doing their homework.

Hey guy. Let's not be so judgemental. There's always a risk of the imei being corrupted when you flash a ROM. As a matter of fact just before I even unlocked my nexus the imei got corrupted and I had to factory flash my phone to save it. Its scary but op, if you manage to get your phone working again make a backup and store it on your PC and or email yourself the backup.

BirchBarlow said:
The IMEI is stored in the EFS partition, not the cache partition.
Click to expand...
Click to collapse
Ha ha thanks! Can't believe you think I don't know that :/
Actually the "EFS partition" is 2 partitions..
/dev/block/platform/msm_sdcc.1/by-name/modemst1
And...
/dev/block/platform/msm_sdcc.1/by-name/modemst2
That doesn't change the fact that reflashing the cache.img is a known fix for missing IMEI. Corrupt cache can make the imei appear as 0 even when the EFS imei is in tact so reflashing the cache.img can resolve this.
Unfortunately though, I didn't read the OP fully. I just elaborated on an earlier response for the OP
jd1639 said:
You'll probably have a hard time here finding anyone to help you manually entering or modifying the imei.
Click to expand...
Click to collapse
Modification is illegal however many mobile repair shops have equipment that can rewrite the existing imei and are legally allowed to. In the UK, this costs about £20. That said, i'm not aware of anyone having it done on the nexus 5. The galaxy s3 with a single /EFS partition could be done easily by a professional
Sent from my Nexus 5 using Tapatalk

rootSU said:
Modification is illegal however many mobile repair shops have equipment that can rewrite the existing imei and are legally allowed to. In the UK, this costs about £20. That said, i'm not aware of anyone having it done on the nexus 5. The galaxy s3 with a single /EFS partition could be done easily by a professional
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Yes but all talks about how to change it in any way are not allowed here. Legally the only people that are allowed to do so is the OEM. You can look at international news reports of cellular dealers that are doing so are being closed down and arrested.
That is why it is well know to back up the efs before you do anything.
Bat cave One

My newly bought Nexus 5 shows IMEI 0 also
RogerG said:
thanks I will try this (even though I think my problem is not related to radio/bootloader and I am generally skeptical about my chances of "restoring" IMEI, as opposed to "manually entering/modifying it"). Still, willing to try anything, thanks for the idea!
Click to expand...
Click to collapse
i just update my newly bought nexus 5 from initial 4.4.2 to 4.4.4 which is appear at update section but then my IMEI appear =0 .. dont understand what to do..
if your problem solved, pls tell me the detail procedure to recover my IMEI no.

RogerG, did you ever get this working? I'm on 6.0 and having the same problem, flashing cache.img also does nothing.
Thanks.

IMEI Repair, HELP NEEDED

Hey all,
Ive been flashing things since early HTC Hero days and never had this issue before. I flashed a new kernel (Uber nightly if that matters) the other day and the IMEI is now 0, no network signal, cannot connect to services, random reboots, etc. Tried completely clean flash stock rom using guide at beginning of general thread running bat file (by windows), still nothing. The file seems to be corrupt until I can reenter the numbers so device recognizes and can get network. Went completely back to stock yet still have unlocked bootloader. Tried looking over the internet for some solutions, only found Octoplus IMEI repair but do not know if I need the box or not in order for it to work. Any alternatives or if anyone knows if the software works without having to buy the box. Want to avoid sending back to Google or LG. Links and suggestions are appreciated.
EDIT: no previous backup had been made to the file.

Did you backup your imei?
Sent from my Nexus 5 using Tapatalk

havy15 said:
Did you backup your imei?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
No, didnt previously make the backup of the file. I know it exists on the phone back and other places Ive seen but I need to inject that number back into system files so the phone recognizes it again. I didnt know of this issue before this but I wont be making this mistake again.

This probably won't help you after the fact, but I'll link this thread right here http://forum.xda-developers.com/google-nexus-5/development/modem-nexus-5-flashable-modems-efs-t2514095 and check the EFS Backup section.
You basically have to figure out a way to manually input the IMEI back into the EFS Somehow, the thread I linked might point you in the right direction.

{Mod edit: Quoted post has been deleted}
Do you know how to get the tool to recognize the device, etc on how to use it. I downloaded demo to look into this yet no luck thus far on how or where device is to write to. I have drivers ,ADB, etc installed.

{Mod edit: Quoted post has been deleted}
Even after reading, still no idea on how the program recognizes the Nexus. Still blank unless you know how

RevelationOmega said:
Even after reading, still no idea on how the program recognizes the Nexus. Still blank unless you know how
Click to expand...
Click to collapse
For now I would keep trying re-flashing factory images again, this time using the long method 2.
I have had this issue. It happened to me on November when I got the phone and wiped cahe. I fixed just Reformating cache on twrp and flashing a CM Rom. It returned my IMEI
Other solved cases http://forum.xda-developers.com/google-nexus-5/help/lost-imei-please-help-t2529103
..... http://forum.xda-developers.com/google-nexus-5/help/efs-backup-imei-lost-t2703948

try flashing a new bootloader for the device. i take no responsibility for what happens to your device after you flashed the new bootloader.

But wasn't changing imei illegal?
Sent from my Nexus 5 using xda app-developers app

{ESO} said:
But wasn't changing imei illegal?
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
Yes, it is

{ESO} said:
But wasn't changing imei illegal?
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
It is illegal to change it for another one. but the issue Op has is something about recovering his own withing allowed parameters.

RevelationOmega said:
Hey all,
Ive been flashing things since early HTC Hero days and never had this issue before. I flashed a new kernel (Uber nightly if that matters) the other day and the IMEI is now 0, no network signal, cannot connect to services, random reboots, etc. Tried completely clean flash stock rom using guide at beginning of general thread running bat file (by windows), still nothing. The file seems to be corrupt until I can reenter the numbers so device recognizes and can get network. Went completely back to stock yet still have unlocked bootloader. Tried looking over the internet for some solutions, only found Octoplus IMEI repair but do not know if I need the box or not in order for it to work. Any alternatives or if anyone knows if the software works without having to buy the box. Want to avoid sending back to Google or LG. Links and suggestions are appreciated.
EDIT: no previous backup had been made to the file.
Click to expand...
Click to collapse
Hey did you get a solution for your problem...Me too lost my IMEI and didn't have the EFS backup. Can we inject the IMEI? if yes, can you please provide the steps?

rajvernekar said:
Hey did you get a solution for your problem...Me too lost my IMEI and didn't have the EFS backup. Can we inject the IMEI? if yes, can you please provide the steps?
Click to expand...
Click to collapse
Sadly, no. The imei number file is specific to the phone and to get it "injected" was considered illegal since people who steal the phone could, by theory, inject the new imei to sell a phone as new. There is things out there (sort of) on this yet nothing good can be done. I use TWRP now since the back up allows EFS folder as well, versus CWM that didn't. I haven't had the problem since on nexus 6 or lg g3. The only way I know how to "solve" it was warranty through Google for nexus 5, they sent a new one to me and took the bad one. Only they (the manufacturers LG and Google) can legally inject the phone back to working condition. In all, had to get new one because no real true fix out there (legally) since even recovering it may be an attempt at stealing, the manufacturers cannot distinguish one person from another. Wish I had better news. Hope that helps and you can get it resolved.

There is an app on*******. IT'S ILLEGAL TO CHANGE A PHONES IMEI NUMBER!!
You can't take a number of am old phone and put it on a new, even if you have both. I can't see its wrong to put the original number back though. I've started a thread and asked the powers that be to rule on giving out the apps name, etc.

Sorry if I revived this post...
I know how you feel.
If you message me I will send you a link to a blog I wrote on this subject, I didn't think it was possible to fix but you can.
I know it's illegal. But google supports custom roms and rooting. So they must understand that this can happen.

Uhhh, I think all of you are incorrect. You may want to check your facts or your phones. If you have the manufacturer's firmware, in my case it is a Xiaomi Redmi Note 10 5G, you can use the manufacturer's (or other) method to flash the firmware and the IMEI numbers will be reinstalled. I was required to login to their site, but that's why you should register electronics with the manufacturer when you purchase them. It might not even need a registered product. And, after I was able to recover the lost IMEI numbers, I noticed that I can freely change them if I desire. Soooo, maybe I'm breaking the law? I suppose that would all depend on my location because this phone is mine, I bought it, rooted it, put a custom ROM on it, then did the dumb a$$ move of arbitrarily deleting files that "just didn't look right". One of those was a key component. Keep in mind, possession is 9/10th of the law. I possess this phone so no matter what, they can only charge me with 10% of a crime.

Lost IMEI no data no WiFi, files only show in recovery, no efs Backup pls help

Hey everybody I hope someone can help me to rescue my phone.
I flashed carbon and ukm. Then wanted to change GPU governor to simpleondemand and got hot reboots. Was not able to fully boot and lost imei. I tried to restore my backup but they didn't want to boot either, same with another fresh install. Thereafter I deleted synapse folder through recovery and was able to boot my restored ROM. Now I have no imei, no data, no WiFi... In addition my files don't show the files on my phone anymore I only can see them in my recovery, all is still there. My problem is I don't have an extra efs backup only two ROM backups. First I would have liked to know how I can rescue my data? Cause its not showing on booted phone and because of that also not on computer via USB. Is there a proper way to save and what can I do to maybe save my phone. I flashed ROM for years on many different devices and something like that never happened before any help appreciated thanks!!!
Sent from my GT-N8000

Try http://forum.xda-developers.com/oneplus-one/general/fix-people-corrupt-efs-mobile-data-t2836389

OK saw this but my problem is I can't copy anything on my phone. Tried via USB and adb I can't get this file on my phone... Is there another possibility?
And its very strange that computer doesn't show files but my recovery does. And I have installed all drivers
Edit: ok found a way^^ through twrp recovery I could mount it to show on my computer so now will try
Sent from my GT-N8000

You can use TWRP to drag and drop files as MTP is a feature in TWRP now.

zephiK said:
You can use TWRP to drag and drop files as MTP is a feature in TWRP now.
Click to expand...
Click to collapse
Yup that is what I found out thanks :thumbup:
Sent from my GT-N8000

Ok get my data and imei back on coloros but no WiFi working... If I switch to cm same results as before... So this one doesn't work for me do you think I could make an RMA with color os on it?? Damn this feels painful... Never had so many problems on note 3 nexus 5 and previous devices...
Sent from my GT-N8000

Thread can be closed this one saved my ass
http://forum.xda-developers.com/oneplus-one/help/fix-brickloop-audio-fx-fc-efs-corrupt-t2879061
Sent from my GT-N8000

Glad that it worked Backup your EFS this time, just incase. Search on how to do it.

I tried all the methods but still unable to get my IMEI and baseband. i am unable to see efs partition. This happened while restoring the backup in TWRP. Please help.

nikku_hot123 said:
I tried all the methods but still unable to get my IMEI and baseband. i am unable to see efs partition. This happened while restoring the backup in TWRP. Please help.
Click to expand...
Click to collapse
tried all methods of what? Please be more specific if others are going to try and help

playya said:
tried all methods of what? Please be more specific if others are going to try and help
Click to expand...
Click to collapse
already posted here http://forum.xda-developers.com/showpost.php?p=55748042&postcount=111

nikku_hot123 said:
already posted here http://forum.xda-developers.com/showpost.php?p=55748042&postcount=111
Click to expand...
Click to collapse
I firstly flashed the coloros ROM then flashed back to cm11s and then followed the instructions of this brickloop thread you posted. That's the way I got my imei back and a fully working device. Hope this may help.
Sent from my One and only Bacon

Cris7ianO said:
I firstly flashed the coloros ROM then flashed back to cm11s and then followed the instructions of this brickloop thread you posted. That's the way I got my imei back and a fully working device. Hope this may help.
Sent from my One and only Bacon
Click to expand...
Click to collapse
Got it fixed. thanks
http://forum.xda-developers.com/showpost.php?p=55778183&postcount=139

nikku_hot123 said:
Got it fixed. thanks
http://forum.xda-developers.com/showpost.php?p=55778183&postcount=139
Click to expand...
Click to collapse
Good happy for you hope something like that won't happen to us again
Sent from my One and only Bacon

imei back up before rooting
Hi, I want to root my OPO but I don't wanna lose my imei while rooting the device.
Thus how can I back up imei before rooting?
Can smo help me with that?

angelus255 said:
Hi, I want to root my OPO but I don't wanna lose my imei while rooting the device.
Thus how can I back up imei before rooting?
Can smo help me with that?
Click to expand...
Click to collapse
There is no reason for you to lose IMEI while rooting...
Follow this guide to do everything you need to do to root: http://forum.xda-developers.com/showthread.php?t=2788632

No EFS Backup...IMEI Lost D821 :(

After multiple flashing of ROMs and kernels, suddenly my baseband has gone (Unknown) and IMEI too . After reading multiple forums, I figured out that it might be a corrupted EFS and my phone is not under warranty everything works fine...wifi, bluetooth etc...only no cellular signal...please help guys already flashed factory images (KK and Lollipop) and tried few custom roms....but same problem Was on latest optipop with Code blue r793 :crying:
Thanks in Advance

Fastboot flash stock cache.img usually fixes this. Not seen many EFS issues on nexus 5. Mainly Samsung has this problem

rootSU said:
Fastboot flash stock cache.img usually fixes this. Not seen many EFS issues on nexus 5. Mainly Samsung has this problem
Click to expand...
Click to collapse
Thanks for the reply but it did not work mate flashed entire stock rom by method 1 and 2 and also flashed cache.img seperately

rootSU said:
Fastboot flash stock cache.img usually fixes this. Not seen many EFS issues on nexus 5. Mainly Samsung has this problem
Click to expand...
Click to collapse
Please help friend, went to Lg Service Center and they say motherboard needs to be changed...about $230 ...tried flashing many custom roms, stock KK and Lollipop latest versions...I backed up my modemst1 and modemst2 and flashed a friend's EFS...the situation improved...baseband shows correctly but IMEI 0 and no cellular network though signal is there....I can see the signal bar full and also E for EDGe written but whn I try to call, no network. When I reflash my EFS files, it is back to unknown IMEI and baseband Please help mate as I see you are very much experienced in this...Thanks a ton in advance
No offence but can also donate you some $$s for your cause....

Try using this

rajvernekar said:
Please help friend, went to Lg Service Center and they say motherboard needs to be changed...about $230 ...tried flashing many custom roms, stock KK and Lollipop latest versions...I backed up my modemst1 and modemst2 and flashed a friend's EFS...the situation improved...baseband shows correctly but IMEI 0 and no cellular network though signal is there....I can see the signal bar full and also E for EDGe written but whn I try to call, no network. When I reflash my EFS files, it is back to unknown IMEI and baseband Please help mate as I see you are very much experienced in this...Thanks a ton in advance
No offence but can also donate you some $$s for your cause....
Click to expand...
Click to collapse
Afraid not mate . Messing with the EFS is illegal in some countries - and there's not much we can do anyway. The only ones who can help you are the guys at LG - keep pestering them until they agree to rewrite your efs.

Why did you not flash your own number. It's on the box and inside the back cover of the phone. To use a friends is stupid and illegal. You can't have two phones with the same number. It's highly illegal.

2G Only
Well, Managed to get back my IMEI as one of the local repair guys injected it...donno how bust maybe using Octoplus Box....But now stuck with 2G only as if I try to switch to 3G/4G, it does not work and phone reboots. Tried multiple roms, LG Flash tool...no resort....any help wud be highly appreciated

RajRockyBalboa said:
Well, Managed to get back my IMEI as one of the local repair guys injected it...donno how bust maybe using Octoplus Box....But now stuck with 2G only as if I try to switch to 3G/4G, it does not work and phone reboots. Tried multiple roms, LG Flash tool...no resort....any help wud be highly appreciated
Click to expand...
Click to collapse
Bring it back to the repair shop. To riffbox it he would of had to solder some stuff to make it work. I'd bet that solder got somewhere it's not supposed to.

theesotericone said:
Bring it back to the repair shop. To riffbox it he would of had to solder some stuff to make it work. I'd bet that solder got somewhere it's not supposed to.
Click to expand...
Click to collapse
The Local Guy did not open the phone....he did some software only changes...

RajRockyBalboa said:
The Local Guy did not open the phone....he did some software only changes...
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Interesting. He just used an IMEI switcher app then? Check and make sure your APNs are correct. That could cause loss of 4g but shouldn't ever cause the phone to reboot.

theesotericone said:
Interesting. He just used an IMEI switcher app then? Check and make sure your APNs are correct. That could cause loss of 4g but shouldn't ever cause the phone to reboot.
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I checked my APNs and am using the same ones I had earlier. Reboot does not happen if I fix my connection to 2g...anyways, I read on XDA that flashing back my QCN file of any other D821 using QPST might solve this..I also have a file which this person shared. (QCN does not hold IMEI info but only NV backup). Can someone guide me whether this will work and if yes, how do I do it?

RajRockyBalboa said:
I checked my APNs and am using the same ones I had earlier. Reboot does not happen if I fix my connection to 2g...anyways, I read on XDA that flashing back my QCN file of any other D821 using QPST might solve this..I also have a file which this person shared. (QCN does not hold IMEI info but only NV backup). Can someone guide me whether this will work and if yes, how do I do it?[/QUOTE
You may have to use the tools capable of flashing stuff to swap CDMA carriers to get AA passwords n stuff back. And its illegal to swap ESN/imei in some countries but i don't see harm in repairing what u broke as long as info is original to Device
Sent from my Nexus 5 using XDA Free mobile app
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Tampering with the imei is illegal

dicecuber said:
Tampering with the imei is illegal
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You sure like saying that.
(d) Exception- Subsection (b) shall not apply to the manufacturer of a mobile device or a person who repairs or refurbishes a mobile device unless the manufacturer or person knows that the mobile device or part involved is stolen.'.
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From here:
http://thomas.loc.gov/cgi-bin/query/z?c112:S.3186.IS:
That bill didn't pass but one like it did. I can't find it right now but you get the idea. FCC regs also allow for REPAIRING of it.
XDA however won't really allow any talk of how to do that because in some countries it is illegal. Plus they gotta cover their arse. So I'll just leave it it that.

No tampering with IMEI here
Thanks for the replies. But I am at all not wanting to tamper with my Imei.. Infact the imei is stable and fixed... I just want my 3g back... Rest of the phone is working perfectly fine