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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
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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
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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....
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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
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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.
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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
TL: My efs partition got screwed so my phone doesn't get service which is sad, But when I turn it on, after just working for a few minutes, it just reboots, which is very annoying, does anyone have a solution for this?
Long Version:
I was on the bus home when my phone went out of charge and died, after getting home I plugged it in, but it was stuck on a Loop, which led to me flashing a bunch of Kernels, and ROMs, later one ROM did work and the phone booted up, but my IMEI was gone so I knew my efs partition was screwed, and I just gave up, I still want to use my Nexus 5 as a normal but without the phone feature, which is somewhat okay,
and One weird problem that came to mind is I cannot install any ROM with version 5.0.2, it just won't boot up, but 5.0.1 is okay...but my phone just Reboots every 1-10 mins, I don't know what the problem is, and I don't know how to check whether or not its the power button, anyone have a good idea for solving this ?
You must have corrupted persist partition. Same as here: http://forum.xda-developers.com/google-nexus-5/help/nexus-5-bootloop-t3047895 the strange thing you both have is that you experience reboot. Are you on lollipop rom?
Also to fix persist follow this guide: http://forum.xda-developers.com/google-nexus-5/general/guide-to-fix-persist-partition-t2821576
bitdomo said:
You must have corrupted persist partition. Same as here: http://forum.xda-developers.com/google-nexus-5/help/nexus-5-bootloop-t3047895 the strange thing you both have is that you experience reboot. Are you on lollipop rom?
Also to fix persist follow this guide: http://forum.xda-developers.com/google-nexus-5/general/guide-to-fix-persist-partition-t2821576
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Yes I'm on a Lollipop rom, and I already applied the presist fix, it didn't change anything.
Did you try to flash stock google image?
Sharo93 said:
Yes I'm on a Lollipop rom, and I already applied the presist fix, it didn't change anything.
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kirmr said:
Did you try to flash stock google image?
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Try to flash cache.img in fastboot. If it still does not help, then your EFS is indeed corrupted. I wish I knew a method to fixing efs.
kirmr said:
Did you try to flash stock google image?
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Yes I already did, I have almost tried everything, short of sending it to repairs which I can't because where I live there is no such place.
bitdomo said:
Try to flash cache.img in fastboot. If it still does not help, then your EFS is indeed corrupted. I wish I knew a method to fixing efs.
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I already did that...I know the efs is corrupted...the only fix i think is using something like Octoplus Box or something
Sharo93 said:
TL: My efs partition got screwed so my phone doesn't get service which is sad, But when I turn it on, after just working for a few minutes, it just reboots, which is very annoying, does anyone have a solution for this?
Long Version:
I was on the bus home when my phone went out of charge and died, after getting home I plugged it in, but it was stuck on a Loop, which led to me flashing a bunch of Kernels, and ROMs, later one ROM did work and the phone booted up, but my IMEI was gone so I knew my efs partition was screwed, and I just gave up, I still want to use my Nexus 5 as a normal but without the phone feature, which is somewhat okay,
and One weird problem that came to mind is I cannot install any ROM with version 5.0.2, it just won't boot up, but 5.0.1 is okay...but my phone just Reboots every 1-10 mins, I don't know what the problem is, and I don't know how to check whether or not its the power button, anyone have a good idea for solving this ?
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Click to collapse
I have pretty much the same issue you do so I'm going to stay posted here.
Do you have an old TWRP backup?
Try to restore any TWRP backup you made of your phone.
Unless you unchecked If you checked that option before making the backup, the EFS partition should be present in the backup.
Best of luck
Anjo_Smash said:
I have pretty much the same issue you do so I'm going to stay posted here.
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The efs is not gonna get fixed unless you have special tools for it, but the random reboots have spotted ever since I installed the Pure White ROM
joegestes said:
Try to restore any TWRP backup you made of your phone.
Unless you unchecked that option before making the backup, the EFS partition should be present in the backup.
Best of luck
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Unfortunately I don't have such a back up, I do however have access to two other Nexus 5s, which i don't want to mess with their IMEI because google might block something and them getting screwed is a no-no...I don't know if my Phone service provider would mind if They see the same IMEI coming up on there system twice, but I don't wanna risk it..
Sharo93 said:
Unfortunately I don't have such a back up, I do however have access to two other Nexus 5s, which i don't want to mess with their IMEI because google might block something and them getting screwed is a no-no...I don't know if my Phone service provider would mind if They see the same IMEI coming up on there system twice, but I don't wanna risk it..
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Do not try to restore an efs from another device. It won't work and you'll make your problem worse.
Sent from my Nexus 5 using XDA Free mobile app
Sharo93 said:
Unfortunately I don't have such a back up, I do however have access to two other Nexus 5s, which i don't want to mess with their IMEI because google might block something and them getting screwed is a no-no...I don't know if my Phone service provider would mind if They see the same IMEI coming up on there system twice, but I don't wanna risk it..
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Man that sucks
Lesson learned I guess, always make a full backup of your device in its original factory state when you buy it.
Sorry for your loss
Can i flash other firmware of s4 on my phone (shv-e300s). For example, i want to flash shv-e330s lollipop or indian's lollipop firmware for my shv-e300s. Will it work? Does my network/signal will be removed or still stays? Thanks for answer.
MarcJustCons said:
Can i flash other firmware of s4 on my phone (shv-e300s). For example, i want to flash shv-e330s lollipop or indian's lollipop firmware for my shv-e300s. Will it work? Does my network/signal will be removed or still stays? Thanks for answer.
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It may work but there is no guarantee at all. Another region's firmware will include another modem version (May affect your signal / reception) and in some cases the partition table is different from the one your phone actually use, which means you can get trouble if you want to flash your region's firmware later. In any case make a backup of the phone's "EFS" partition to be sure your IMEI will not get lost and the phone become unusable.
LS.xD said:
It may work but there is no guarantee at all. Another region's firmware will include another modem version (May affect your signal / reception) and in some cases the partition table is different from the one your phone actually use, which means you can get trouble if you want to flash your region's firmware later. In any case make a backup of the phone's "EFS" partition to be sure your IMEI will not get lost and the phone become unusable.
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I actually lost my IMEI before and lost my signal. Then i went to repair shop for a fix. They fixed the signal, but they haven't restored my original IMEI. it still shows fifteen 0(zeros)/01. how can i reshow it?
MarcJustCons said:
I actually lost my IMEI before and lost my signal. Then i went to repair shop for a fix. They fixed the signal, but they haven't restored my original IMEI. it still shows fifteen 0(zeros)/01. how can i reshow it?
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You can't. For that you create a EFS backup BEFORE youn start modding your phone...
LS.xD said:
You can't. For that you create a EFS backup BEFORE youn start modding your phone...
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but i can still backup my efs/IMEI even if it shows 000000000000000/01 ?
MarcJustCons said:
but i can still backup my efs/IMEI even if it shows 000000000000000/01 ?
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"EFS" is one of the phones partitions storing somje data. You still can backup it, but thats not very usefull as the partition already got screwed up. With IMEI 0 you should not get any carrier signal // reception.
LS.xD said:
"EFS" is one of the phones partitions storing somje data. You still can backup it, but thats not very usefull as the partition already got screwed up. With IMEI 0 you should not get any carrier signal // reception.
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so it means, backing up my efs doesn't do anything if ever i flash a different firmware and screwed up for restoring?
MarcJustCons said:
so it means, backing up my efs doesn't do anything if ever i flash a different firmware and screwed up for restoring?
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As long your phone is not usable for getting signal or accepting your simcard you will gain absolutely nothing my performing a EFS backup as there seems notghing on it that can be saved.
LS.xD said:
As long your phone is not usable for getting signal or accepting your simcard you will gain absolutely nothing my performing a EFS backup as there seems notghing on it that can be saved.
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My phone is still usable and has signal. It means backing up still makes sense?
MarcJustCons said:
My phone is still usable and has signal. It means backing up still makes sense?
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I'm really curious about it as your carrier will normally refuse establishing connections to simcard in a device with invalid IMEI but in that case backup your EFS.
LS.xD said:
I'm really curious about it as your carrier will normally refuse establishing connections to simcard in a device with invalid IMEI but in that case backup your EFS.
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Me too. i think they changed my IMEI. i saw them holding another phone and checking the imei at the back of the phone while repairing my phone. Anyways, i will try backing up my efs. Thankyou so much! ^^
MarcJustCons said:
Me too. i think they changed my IMEI. i saw them holding another phone and checking the imei at the back of the phone while repairing my phone. Anyways, i will try backing up my efs. Thankyou so much! ^^
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Please press the "thanks" button at the bottom of my posts if I helped you
LS.xD said:
Please press the "thanks" button at the bottom of my posts if I helped you
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i will, for giving me a lot of informations and help.
First things first, I'm sorry for opening another thread on this but I feel the other ones weren't headed exactly in the correct direction.
A little background:
I was trying to downgrade my XT1541 to Lollipop since 6.0 was really bad and I got frustrated and used
Code:
fastboot erase all
The result was I erased my IMEI and I haven't been able to connect to a network carrier since. The problem can be solved by re-writing my IMEI but that's the difficult part.
What I gathered so far is I can use QPST, backup QCN, go into HEX and change IMEI there, then restore the QCN back to my device. The problem is I can't locate the IMEI in my QCN since my IMEI is now simply 0.
So in all, could someone make a backup of THEIR QCN and send it to me? I would flash it to my XT1541, locate the IMEI (since now I would know what I'm looking for), then change it back to my own.
Does that sound like something that could work? Can anyone help?
UPDATE1: Noone sent me their QCN however I did try to restore the one I backup up (which still has an IMEI=0). QPST Software Download reports
Received an invalid command from the phone.
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I tried using Qualcomm NV Tools (from EFS Professional), which reads all the information correctly, however when attempting to write the following appears
Cannot Write: NV_UE_IMEI_I
Error: NV_ERR_BAD_SECURITY_STATE
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So getting another QCN won't help as it seems that I can't write the IMEI (qcn) back to the device...
There are only two possibilities of fixing this... a 50/50 chance that a full factory flash will restore it (don't know how, but it does sometimes). If that doesn't work, then you need to send it to Moto for repair.
acejavelin said:
There are only two possibilities of fixing this... a 50/50 chance that a full factory flash will restore it (don't know how, but it does sometimes). If that doesn't work, then you need to send it to Moto for repair.
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I have already tried with a full stock rom flash which didnt work...
zeusalmighty said:
I have already tried with a full stock rom flash which didnt work...
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Well, unfortunately that leaves option 2... or turn it into a media play and buy a new phone.
Funny how `fastboot erase all` causes such a pain for some and not others... but once your IMEI is gone, there isn't much you can do. Moto kinda screwed the pooch on that one.
Hello, did u try Xposed IMEI changer? Maybe that will be a native fix for this issue.
Try this >http://forum.xda-developers.com/moto-g/help/info-moto-g-imei0-t2925970/post61725547#post61725547
Henriquefeira said:
Try this >http://forum.xda-developers.com/moto-g/help/info-moto-g-imei0-t2925970/post61725547#post61725547
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Thanks but the dd commands wont work since it appears the folder structure is different on the XT1541...any help?
Forever Alone said:
Hello, did u try Xposed IMEI changer? Maybe that will be a native fix for this issue.
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Hey, couldn't get any results with the xposed module
Just one bump
One last effort, not a bump. If anyone can direct me to commercial services for repairing the IMEI i'd be very greatful. Official Motorola Service wont repair it for me btw.
Thanks
try this guys
http://forum.xda-developers.com/2015-moto-g/help/tuto-fastboot-erase-signal-t3451362#post68445534
hi poco f2 pro, is there a guide or method for imei repair. How can i do thanks
Have you lost your IMEI?
What do you mean with "IMEI repair"?
chemha said:
What do you mean with "IMEI repair"?
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yes I asked for a method that allows to lose the imei or replace the current imei.
sakibm47 said:
Have you lost your IMEI?
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I haven't lost imei yet, but can something be done in case of losing. if yes i wonder how i can do it.
NEBUKADNEZAR-40 said:
I haven't lost imei yet, but can something be done in case of losing. if yes i wonder how i can do it.
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Illegal and unless you have genuine reason nobody will help or advise you.
Its not something you should do by any means....if you want to flash firmware then back up is essential.... But restoring or modification of your IMEI is not supported in fact i believe its prohibited
Sorry to disapoint
NEBUKADNEZAR-40 said:
I haven't lost imei yet, but can something be done in case of losing. if yes i wonder how i can do it.
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Backup efs partition
Efs backup restore problem
Efs I got a backup Nothing changes when I reload. What could be the reason for this?
Nothing will change if you just reload it ,you will bring back the same setting as you have.
The best way is to use the phone without sim card. If you dont want to be found or have problem if you found that phone.
But ,this is also illegal so there is a hard way that you will found how to do this.