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I got my samsung galaxy s2 this month. Everything is ok until the day before yesterday. When I try to make a call, it says "mobile network not available". I go to the setting--->wireless and network--->mobile networks--->select/unselect use packet data, there is no icon indicator it is activate as it should be. I tried the factory data reset, but the problem is still unsolved. Thus far, call/message stop working. Wifi is OK. Do you have any suggestion on that? Thanks.
Please check your IMEI, and your Baseband version.
If they are not available, you will need to restore your EFS, if you do not have a backup, you will have to visit Samsung Service Center, or repair the EFS yourself.
Do not use another phone's copy of EFS as it is illegal to modify or clone your IMEI number in most (if not all) countries. You can however use someone's EFS backup, and mod it with your phone's IMEI if you know how to.
Hi,
I'm in this horrible situation: no baseband, no IMEI. By ny chance, do you know how to get a EFS backup and change to my IMEI?
I appreciate any help. I was trying to make a call, the person on the other side could not hear me. I reboot and...lost my baseband. Checked IMEI, it was also missing.
Thanks
mbernstein said:
Hi,
I'm in this horrible situation: no baseband, no IMEI. By ny chance, do you know how to get a EFS backup and change to my IMEI?
I appreciate any help. I was trying to make a call, the person on the other side could not hear me. I reboot and...lost my baseband. Checked IMEI, it was also missing.
Thanks
Click to expand...
Click to collapse
have u solved your problem? I got something quite similar...
In my sad experience, your only chance is going to Samsung and ask them to restore your IMEI. From what Samsung in BRazil told me, it should be in the same country of the device. As my device was imported from the UK, Samsung Brazil could not do anything, as IMEI database is Country restricted. I believe this info is correct as the representative was very helpful. It did not look like a lame excuse. If your device is not under warranty, it should not cost you more than U$ 50. That was the price here, and everything in Brazil is so expensive these days.
My solution was to buy another Galaxy S II in Brazil as it had been released here in between the time I imported mine and the time it got screwed.
Wish you good luck.
mbernstein said:
In my sad experience, your only chance is going to Samsung and ask them to restore your IMEI. From what Samsung in BRazil told me, it should be in the same country of the device. As my device was imported from the UK, Samsung Brazil could not do anything, as IMEI database is Country restricted. I believe this info is correct as the representative was very helpful. It did not look like a lame excuse. If your device is not under warranty, it should not cost you more than U$ 50. That was the price here, and everything in Brazil is so expensive these days.
My solution was to buy another Galaxy S II in Brazil as it had been released here in between the time I imported mine and the time it got screwed.
Wish you good luck.
Click to expand...
Click to collapse
that's really helpful! I'll go and ask them to help. luckily I purchased mine in UK and it's under warranty.
LiFE1688 said:
Please check your IMEI, and your Baseband version.
If they are not available, you will need to restore your EFS, if you do not have a backup, you will have to visit Samsung Service Center, or repair the EFS yourself.
Do not use another phone's copy of EFS as it is illegal to modify or clone your IMEI number in most (if not all) countries. You can however use someone's EFS backup, and mod it with your phone's IMEI if you know how to.
Click to expand...
Click to collapse
I have the same problem. Can u tell me how to restore efs. I installed leaked firmware of android 4.0.3 on my sgs2 and selected an efs file in bootloader and when i restored my rom from cwm it was showing network on top but when i dialed any no. and pressed call button it said mobile network not available. But i was able to use the internet. Please give me some suggestions. Thanks in advance. I will buy you a beer.
[email protected] said:
I have the same problem. Can u tell me how to restore efs. I installed leaked firmware of android 4.0.3 on my sgs2 and selected an efs file in bootloader and when i restored my rom from cwm it was showing network on top but when i dialed any no. and pressed call button it said mobile network not available. But i was able to use the internet. Please give me some suggestions. Thanks in advance. I will buy you a beer.
Click to expand...
Click to collapse
There are a load of posts and stickeis on a forum Called XDA you could start by searching that forum for IMEI and EFS posts .
jje
same problem
[email protected] said:
I have the same problem. Can u tell me how to restore efs. I installed leaked firmware of android 4.0.3 on my sgs2 and selected an efs file in bootloader and when i restored my rom from cwm it was showing network on top but when i dialed any no. and pressed call button it said mobile network not available. But i was able to use the internet. Please give me some suggestions. Thanks in advance. I will buy you a beer.
Click to expand...
Click to collapse
exactly same thing happened to me any solutions so far??????
my IMEI and Baseband are ok
and even i can use Wi-Fi i tried flashing cynogen,MIUI,Checkrom,Galnet Miui,ICS(XXKPA),stock Gingerbread and what not
flashing Pit file again wont do either
Just nt getting wt 2 do
I have the same problem, but if I take out the sim and put in another phone, it works, and if I took another sim (from another operator) and put it in sgs2, it also works, just this sim not working in this sgs2. Is this operator controlled by apple and trying to block sgs2 devices?
solarj said:
I have the same problem, but if I take out the sim and put in another phone, it works, and if I took another sim (from another operator) and put it in sgs2, it also works, just this sim not working in this sgs2. Is this operator controlled by apple and trying to block sgs2 devices?
Click to expand...
Click to collapse
I got absolutely the same problem!!!
Any fixes???
Any updates here guys?
Mine stopped working yesterday, I still have my IMEI number and Baseband version...
So far I have:
Get into the CWM recovery
Wipe Data/factory reset
Wipe Cache
Wipe Dalvik-Cache
Wipe Battery Stats
Wipe Data/factory reset
Wipe Cache
Wipe Dalvik-Cache
Wipe Battery Stats
Install the wipe version of this ROM (CheckRom v4)
Any ideas?
Thanks
I've got the same problem...
does anyone have came up with a good solution?
Try this
Root your phone.
Go to efs folder in root. Go to imei folder in that you will find a file named mps_code. Edit it using root browser from market. Erase everything and type your original imei no. and save it.
Reboot your phone and now check.
Cannot guarantee it but it worked on mine. Good luck
Sent from my GT-I9100 using XDA premium
All I had to do to go to the Access Point Name ('APN') settings and change the Authentication Type from its default 'Not Set' to 'None'. After that, my internet is working fine.
It would appear this may be an issue common to a number of Chinese phones, so hopefully this will be of use to other people in the same situation.
Hello,
I have the Samsung Galaxy S II
Flashed with Dark litening rom.
Just today, this problem started. When I start up the phone I have signal for maye 5 minutes. Then I see coverage bars, but it says emergency calls only in the notification menu, and I cannot connect any calls.
I bought two of these off the same guy online about a month ago, the other one works fine so i think (hope) its not imei blocked.
I have googled it to no avail.
I have tried removing battery sim card and resetting.
I have tried a different sim card.
I have tried factory reset.
None of the above worked.
Please help.
Thanks in advance, any and all suggestions are appreciated
I checked the imei here:
http: //www . amta . org.au/?Page=405
And it says unblocked.
So it must be an error with the phone? Please help.
Thanks
MeTheMember said:
I checked the imei here:
http: //www . amta . org.au/?Page=405
And it says unblocked.
So it must be an error with the phone? Please help.
Thanks
Click to expand...
Click to collapse
Check your IMEI is the correct one that came with the phone and matches up under the battery ..
Probable you damaged EFS folder when flashing a rom .
Restore your backed up EFS folder .
jje
Thanks for the reply, unfortunately I have checked that already and they are matching. Any other suggestions?
same Issue on my side
I try all what i can.
even another modems. No help...
setup by *#*#0011#*#* no help
APN working
Simcard fine ( working in different phone)
If i try search networks, after choose O2 >>>> unable to conect.Try later
Its any solution for fix this problem ?
(phone was originally for Orange, I using O2)
Well I did a factory reset, then I restored the firmware to original samsung firmware with odin, and so far its working
i have same problem and cant fix. imei shows correctly. but cannot call. always say emergency call only :/ please help me about that.
kireytir said:
i have same problem and cant fix. imei shows correctly. but cannot call. always say emergency call only :/ please help me about that.
Click to expand...
Click to collapse
Have you solved the problem?
I have same problem.
mrsisu said:
Have you solved the problem?
I have same problem.
Click to expand...
Click to collapse
Do a factory reset, wipe data and cache from CWM recovery if you have it, or flash a new rom. (Backup anything you dont want to lose).
veyka said:
Do a factory reset, wipe data and cache from CWM recovery if you have it, or flash a new rom. (Backup anything you dont want to lose).
Click to expand...
Click to collapse
Not work..
pinkman1 said:
what i did was very simple.
1) root explorer -> /efs
2) delete every file (yes, i am crazy M.F)
3) reboot
Click to expand...
Click to collapse
Reported. Please, please, please, any noobs reading, do not blindly follow this advice.
oinkylicious said:
Reported. Please, please, please, any noobs reading, do not blindly follow this advice.
Click to expand...
Click to collapse
yes i am sorry i did this this out of desperation, cause nothing work for me///
and this way i could use it as phone...sorry
i did restore my IMEI after it ... and i found a temporary method for using my phone
i am having same problem posted on other threads as well and it seems many ppl are facing it but no perm solution. I hope someone will do the favour soon and we shall be able to use it as a phone rather than a PDA
Hi! i experienced this issue with my Samsung Galaxy S2 after flashing ICS rom. It's weird as well that when I transfer the sim to different phone and place it back again to my phone then it works but the moment I reboot my phone then I will get the same issue...
Same problem
Same problem right here about a month in to using CM7
Going round in circles...
I've now tried all sorts.
Wipe caches, factory reset, different kernels, different modems, new SIM card, battery & SIM out, reboot, chec ed if phone is barred, checked if IMEI has changed, all sorts....
Still no luck.
Can anyone help?
I found out what the problem is.
The same thing happened to me.
Emergency calls only, couldn't connect to a network, out of service state, IMEI was fine.
I went to the network operator that sold me the phone, and they scanned my phones barcode and told me the phone is blacklisted.
Go to your network operator and check if this is the case. I'm 99% sure that it will be. You ought to be able to unblacklist the phone
robertostefanini said:
I found out what the problem is.
The same thing happened to me.
Emergency calls only, couldn't connect to a network, out of service state, IMEI was fine.
I went to the network operator that sold me the phone, and they scanned my phones barcode and told me the phone is blacklisted.
Go to your network operator and check if this is the case. I'm 99% sure that it will be. You ought to be able to unblacklist the phone
Click to expand...
Click to collapse
Sadly 99% of those with a problem have not a blacklisted IMEI they just broke the EFS and never bothered to read the fAQS and GUIDES .
jje
JJEgan said:
Sadly 99% of those with a problem have not a blacklisted IMEI they just broke the EFS and never bothered to read the fAQS and GUIDES .
jje
Click to expand...
Click to collapse
I have the same problem.
IMEI is fine.
How to fix?????
And have you both asked your carrier if the phone is IMEI blocked & absolutely positively 100% ruled out a carrier side problem ? (Given a lot of these problems tend to be carrier side one way or another).
Rimty said:
I have the same problem.
IMEI is fine.
How to fix?????
Click to expand...
Click to collapse
Hi
i was a happy customer with my SII, which i brought from india, everything was fine, until a week back, when suddenly my SII shows no signal, no IMEI and no baseband
i didnt flashed or changed anything ...
1. i tried using different SIM - no use
2. this sim works in other phones
3. factory reset - no use
4. all is done...
**** I DONT HAVE A EFS BACKUP ***********
please give me a detailed fix route for this issue. as i cannot take the phone to INDIA in next 4 months to get is repaired. i have my warranty still. but thought that something can be done from my side to get it fixed. please please lemme know how to fix this! :-(
I had this happen to me. I hadn't taken an efs backup and thought I was screwed, but I found an auto backup on my SD card called EFS_BACKUP. Check if you have this, if you do, use GSII_Repair from the market to restore it.
Sent from my GT-I9100 using XDA App
Buy z3x box and you resolve problem
Sent from my GT-I9100 using Tapatalk
you can flash a new kernel and a baseband
sent from my GT-I9100 using Tapatalk in Guangzhou!
ksenthi5 said:
suddenly my SII shows no signal, no IMEI and no baseband
Click to expand...
Click to collapse
If your EFS is not total screwed and your nv_data backup is valid its possible GSII_Repair from market will work for you ...
Once you have tried all the guides and still in the same situation, check out this post
http://forum.xda-developers.com/showthread.php?t=1372169
I tried already flashing the Stock ROM once, and hence i dont know whether there is still a backup of EFS is in place....
can anyone take a little bit more time in explaining the steps to solve this,
like does a backup from another gSII will help the purpose... ?
please let me know more details, i will be thankfull like anything.
How come this problem happens, when we do a complete flash does the EFS folder get replaced or the the flash doesnot affect the EFS part at all?
i feel its very strange to see such kinda problem..
buying Z3x isnt a good idea
Z3x-box sa
msung - 169USD
Z3x-box LG - 169USD
Z3x-box 2in1 (sam+lg) - 299USD
qq594836605 said:
you can flash a new kernel and a baseband
sent from my GT-I9100 using Tapatalk in Guangzhou!
Click to expand...
Click to collapse
does this solves the issue>>>>? did u had any success stories
Odia said:
If your EFS is not total screwed and your nv_data backup is valid its possible GSII_Repair from market will work for you ...
Once you have tried all the guides and still in the same situation, check out this post
http://forum.xda-developers.com/showthread.php?t=1372169
Click to expand...
Click to collapse
what you call its as total screwed??
Will a backup from another Samsung Galaxy SII work ? for me?
EFS is a folder would be having NV_data and some other files. he's asking that the entire EFS got screwed or just some parts.?
I tried complete flash, means baseband,Kernel and system including User data reset.
i really confused about the relationship between the EFS folder and the IMEI,basband, blah blah...
EFS folder is nothing to with your blah blah nor your modem /baseband .
It is essential the details of the phone and its sole identity that is signified by the IMEI number individual to each phone . This IMEI number is used in the initial handshake each time you make a connection .
Lost or stolen phones can have their IMEI blocked once on the block list handshake is denied by the networks = no connection .
jje
GSII_Repair tool from Market, Four steps in that tool, am Done ...........all is well now.
Really really helpful tool. Thanks to all who suggested this TOOL ;-)
JJEgan said:
EFS folder is nothing to with your blah blah nor your modem /baseband .
It is essential the details of the phone and its sole identity that is signified by the IMEI number individual to each phone . This IMEI number is used in the initial handshake each time you make a connection .
Lost or stolen phones can have their IMEI blocked once on the block list handshake is denied by the networks = no connection .
jje
Click to expand...
Click to collapse
u mean is that a nw problem? nothing to do with the phone?
its really p***d off me for fixing that issue..
handshaking happens only after the phone detects the sim card. but here phone doesnot detect the sim at all. so is ur point still valid?
my phone was brought from samsung authorized dealer so how come its possible to happen so?
looks like EFS is the area where full flash no longer having access to it!! if not then a complete flash should have sorted that out.
EFS are reference files containing the imei and phone unique info, when these files gets corrupted, then phone will b helpless.
though u have root access u'll never get RW permission inside the folder.
there should be a automatic recovery, the SW should have had in place if there are corruption. poor implementation.... bah...
My previous phone was Walkman W8 and i used to root the phone and install custom rom and stuff and i was using the custom romed phone for a long time..
Then i got Samusng Galaxy S2 GT-I9100G and stared custom roming and rooting stuff.. After losts of soft bricks and hardbricks i managed to install rootbox rom with codeworkxx custom kernel in it..
But when i booted the the phone then the phone didnt detect sim card i tried restoring to original OS it sill didnt work..
Then i came across efs problems in xdaforums.. So i tried to use efs pro v1.7.14, backed up my efs and tries to restore them.. It didnt work then i downloaded a efs.img online for my phone and tried to restore my efs with that.. I didnt work also..
I tried to restore my backup and efs pro showed me this error...
Checking Device Connection... Device Connected!
Checking ROOT Access... Okay.
Restoring Device's '/efs' Folder, Please Wait...
Detected '/efs' Partition Location: UNKNOWN
Pushing EFS Backup To Device... Okay.
Copied: 3609 KB/s (20971520 bytes in 5.673s)Re-mounting Root File System... Okay!
Unmounting '/efs' Folder... Okay!
Mounting '/efs' Folder As Read/Write... Failed!
Error: Invalid Partition Location!
EFS Restore Failed!
Operation Finished!
Click to expand...
Click to collapse
I ended up in empty efs folder with some upgaddr file...
I appreciate any kind of advice.. I am a semi-noob...Now i am using my old SE Walkman W8 till this gets fixed...
Thank You
take it to warranty
I have the same issue and i made lot and lot of reasearch about the EFS folder, IMEI recovery, etc etc, and i concluded that if you still have warranty return the phone to stock and take it to warranty (mine is with samsung warranty since yesterday).
I'll update you if they could fix it.
So I guess there is no other way then..
Anyway thanks for the reply.
My flash count is 7 will they accept my warranty if I restore the phone to its original self and give them...
Is there Anyother Way using Odin to repair my phone..
Badly want my s2 back
OK. I looked here and there and got my efs folder back...
But still my Sim dosent work and also have a problem with baseband version, my phone says base-band version unknown..
You need to flash another modem, but before that enable Flight mode.
Well if you still want to put your phone in Samsung for warranty flash an ICS ROM and then use Chainsfire Triangle Away application to reset your Flash count.
That way you wont have problems with Samsung.
You have the application in Market or in a post in this forum, market its 1.75 € if you get it from the forum its free.
Guys thanks for the replies...
:fingers-crossed:
But some how i got my S2 to detect my SIM card by flashing stock modem..:good:
The modem that worked for me was DZKL3 stock modem... now my unknown baseband is solved.. And my phone detects the simcard but still not perfect have lots of bugs..But even though my cell detects my sim card when i try to call or sms i get "Not registered on a Network" warning...
Now i am stuck up there....What to do from here
Have you tried to switch operator in cellular networks settings?
Have you tried to switch operator in cellular networks settings?
Click to expand...
Click to collapse
Yes, it says unable to connect when i select my operator...
But the sim is perfectly working in my other phones..
Bump... Just checking for solutions from xda members...:highfive: By the way I flashed full stock ROM wiped SD card all stock setting... Still no use... Just "unable to connect t network" error popping up...
Is your IMEI 004999010640000 ? Whatever you do, don't post your IMEI (important) if it's different from this, a yes/no answer will do.
MistahBungle said:
Is your IMEI 004999010640000 ? Whatever you do, don't post your IMEI (important) if it's different from this, a yes/no answer will do.
Click to expand...
Click to collapse
YES!
In that case you have the generic IMEI. Your original IMEI is gone. Sounds like your carrier blocks access to devices with non-unique IMEI's (lots of carriers around the world do this; some don't).
Restore your EFS backup if you have one (lots of threads on here detailing how to do this), if you don't have one it's either a service centre job (which you'll probably end up paying for), or you can contact a member on here called Odia by PM who might be able to recover your EFS/IMEI for you (for a small donation; much cheaper than paying Samsung/an authorised repairer to fix it).
Thanks Mate:highfive: this helped me a lot! Hope this solves my problem...:victory:
Sorry for posting this again...
I think i already know my imei number so is there anyway that i can restore my imei number through terminal, or using an external application....
If so can u guys help me... Thanks...
Without an EFS backup, no. Only Samsung/authorised repairer can fix it (Odia can sometimes as well with whatever form of magic he uses to recover them).
IMEI's are a unique device identifier, I.E your IMEI is unique to your phone. Changing IMEI's or transferring them to other devices is illegal in most jurisdictions throughout the world.
try this
http://forum.xda-developers.com/showthread.php?t=1264021&highlight=efs
MistahBungle said:
Without an EFS backup, no. Only Samsung/authorised repairer can fix it (Odia can sometimes as well with whatever form of magic he uses to recover them).
IMEI's are a unique device identifier, I.E your IMEI is unique to your phone. Changing IMEI's or transferring them to other devices is illegal in most jurisdictions throughout the world.
Click to expand...
Click to collapse
Thanks.. I know my unique imei number which is in my back of my phone... How come changing to my own imei be illegal...
try this
http://forum.xda-developers.com/show...&highlight=efs
Click to expand...
Click to collapse
I lost my efs backup thats y i am stuck up here... otherwise i would have restored it long time ago...
I didn't say that. I mentioned it because whenever we get these threads on here, the conversation invariably turns to 'can I change my IMEI or transfer it to another phone', that's all.
You only have the two options. I'd recommend you contact Odia via PM & be patient.
raveensrk said:
Thanks.. I know my unique imei number which is in my back of my phone... How come changing to my own imei be illegal...
Click to expand...
Click to collapse
there was a post to recover imei
but now i cant find the thread in gs2 forum
Hi guys,
I've messed up and need help. Here goes...
I had a locked phone on the 3 network , a S3 I9300; and I wanted to unlock it. Simple I thought to myself.....anyways, I downloaded the voodoo unlocker after rooting successfully with Odin. Nothing happened it wouldn't read my T-Mobile sim card and I can't remember what I did exactly but I did press some buttons on that app in attempt to unlock the sim. I then realised that it was not compatible with the S3 and then I proceeded to use the GalaxSim app. I had to download busybox for that, after doing that I attempted to unlock it. Yipeee! Phone unlocked and everything green.....but not. I still couldn't register on any network(using manual method as well). I had even cleaned my SIM card(but not tried another sim card). I then unrooted the phone with stock rom and unrooted again to use GalaxSim......and pressed backup accidentally! That I means I am now with an unlocked efs folder as my default efs, I didn't check the IMEI number to see if it changed, but how I return it all to normal? Has my IMEI number changed or would it not show IMEI if I overwrote the EFS folder?
I need help, I'm confused.
What phone you post I9100 ?????
No or broken EFS then just restore your backed up EFS .
jje
sorry i9300.
No, the EFS I had was overwritten with the newer version when I reinstalled the app. Now I have only one EFS and that's the one currently installed(which says the phone is unlocked). The phone is not registering on any network. Is this a baseband issue or a unlock issue? The app is showing unlocked, it shows all the networks, but some are written as"forbidden networks" and I can't connect to any.
By the looks of it, the simlock will never return.
RootJunkie said:
sorry i9300.
No, the EFS I had was overwritten with the newer version when I reinstalled the app. Now I have only one EFS and that's the one currently installed(which says the phone is unlocked). The phone is not registering on any network. Is this a baseband issue or a unlock issue? The app is showing unlocked, it shows all the networks, but some are written as"forbidden networks" and I can't connect to any.
Click to expand...
Click to collapse
You cannot update an EFS with a newer version you can only restore your original backed up EFS .
Does the IMEI match that under the battery if not its a service centre repair .
jje
Oh and the platform is jellybean.
The imei is the same, but it is still "sim unlock". How can i redo the process?
your phone should be fine you restore your original imei or just copied your origanal imei again probaly for the best as you know you have a back up of it now
chances are your phones unlocked now and probaly just need to register the sim card with T-mobile to activate it
should always place the back up of your efs somewhere else aswell incase things do go wrong mem cards can corrupt
Both sims that i've used are contract. I can't register any. They all say disconnected on status settings.
RootJunkie said:
Both sims that i've used are contract. I can't register any. They all say disconnected on status settings.
Click to expand...
Click to collapse
your imei coming up when you type *#06# ?
Amni said:
your imei coming up when you type *#06# ?
Click to expand...
Click to collapse
Yes.
Anyone?
have you read the rules?
Glebun said:
have you read the rules?
Click to expand...
Click to collapse
yes
You are breaking them on purpose then. It's against the rules to bump your thread more than once every 24 hours, you did it not even after half an hour