Related
I rooted my S3 about a year ago, when I got it first using CF-Root. Had zero problems.
Gave it to the girlfriend a month ago. Did a factory reset etc, but left it rooted. I did however take out my sd card(which probably has something to do with the problem?)
Anyways, 3 days ago, the wifi suddenly stopped working on it all of a sudden. The wifi tab is kind of greyed out and wont turn on or scan for any networks. (see photos below)
I tried turning the phone on/off, taking out the battery etc. Nothing worked.
I then flashed the same ROM back onto it and the problem disappeared for a day, but then all of a sudden reappeared! I thought I had fixed it, but no!
I put back in a sd card,I then downloaded and flashed another Rom(CM 10.2) using Rom manager from the sd card, and the problem disappeared again.
But after 12 hours both the wifi and the 3G stopped functioning
I've no idea what is the problem. Can anyone help me out with this? Could it be the kernel that's causing the problem? I'm not very tech savvy guys. I know how to root the phone, but I've had to deal with any issues.
I'd really appreciate any help, as we need access to the net from our phones. I've included photos below so that you can see the rom and kernal and other details that may help ye decipher the problem.
http://imageshack.com/a/img856/1443/c3ow.jpg
http://imageshack.com/a/img46/1797/euiv.jpg
http://imageshack.com/a/img196/4737/drsa.jpg
Did you check logcat for any clue?
Stop running nighties. Problem solved.
hberntsen said:
Did you check logcat for any clue?
Click to expand...
Click to collapse
No idea what that is?
xclub_101 said:
Stop running nighties. Problem solved.
Click to expand...
Click to collapse
Problem was present before I flashed the CM nighties, so that doesn't mean it's the issue!
chicoelnino said:
I rooted my S3 about a year ago, when I got it first using CF-Root. Had zero problems.
Gave it to the girlfriend a month ago. Did a factory reset etc, but left it rooted. I did however take out my sd card(which probably has something to do with the problem?)
Anyways, 3 days ago, the wifi suddenly stopped working on it all of a sudden. The wifi tab is kind of greyed out and wont turn on or scan for any networks. (see photos below)
I tried turning the phone on/off, taking out the battery etc. Nothing worked.
I then flashed the same ROM back onto it and the problem disappeared for a day, but then all of a sudden reappeared! I thought I had fixed it, but no!
I put back in a sd card,I then downloaded and flashed another Rom(CM 10.2) using Rom manager from the sd card, and the problem disappeared again.
But after 12 hours both the wifi and the 3G stopped functioning
I've no idea what is the problem. Can anyone help me out with this? Could it be the kernel that's causing the problem? I'm not very tech savvy guys. I know how to root the phone, but I've had to deal with any issues.
I'd really appreciate any help, as we need access to the net from our phones. I've included photos below so that you can see the rom and kernal and other details that may help ye decipher the problem.
Click to expand...
Click to collapse
Have you tried flashing it back to a pure stock ROM (or maybe a stock derived ROM like WanamLite or Imperium) ?
hundred_miles_high said:
Have you tried flashing it back to a pure stock ROM (or maybe a stock derived ROM like WanamLite or Imperium) ?
Click to expand...
Click to collapse
No, I haven't. Simply because I'm not sure which ROM is suitable for me.
Could you point me towards a link to that ROM(a version that works on my phone, or does it matter?)
I'm lost with all the different ROM's etc at this stage, and all I want is for the phone to be back working - whether that's with or without root access. It's for my girlfriend, so she hasn't a clue about root etc.
Thanks for any help you can provide.
chicoelnino said:
No idea what that is?
Click to expand...
Click to collapse
Via logcat you can see messages from android's internal logging system. A lot of times the internal errors you don't see can be obtained via logcat. Look at http://www.xda-developers.com/android/help-your-developers-pull-a-logcat-when-issues-arise/ and https://www.xda-developers.com/tag/logcat/ for more info.
Can anyone just suggest to me a way to get the phone back to it's original state either rooted or unrooted...I don't care.
I just need to get the phone fixed so that my g.friend has a phone that has wifi working properly.
Do I need a different kernel or something? I'm lost, so any help as to what direction to that is appreciated.
Its all posted in the fff Faqs and Guides .
Please read how to return to stock for warranty post .
Hi, sorry if this has been answered, but I can't find it.
I recently combined two broken i9300's (one with a bricked motherboard (gets into download mode, product name blank, think it's SDS), the other with a smashed screen) by transferring the motherboard from the smashed one to the other.
It seemed to work fine for a while, but after a week the phone lost signal, showing no service. Rebooting the phone fixed this, however this has now been happening more and more often, and now doesn't have any service even after booting.
Does anyone know what the problem could be, and how to fix it?
Thanks.
EDIT: I managed to restore service again by flashing the stock ROM through Odin (was running stock already), but it lost it again after a few hours.
pnz said:
Hi, sorry if this has been answered, but I can't find it.
I recently combined two broken i9300's (one with a bricked motherboard (gets into download mode, product name blank, think it's SDS), the other with a smashed screen) by transferring the motherboard from the smashed one to the other.
It seemed to work fine for a while, but after a week the phone lost signal, showing no service. Rebooting the phone fixed this, however this has now been happening more and more often, and now doesn't have any service even after booting.
Does anyone know what the problem could be, and how to fix it?
Thanks.
EDIT: I managed to restore service again by flashing the stock ROM through Odin (was running stock already), but it lost it again after a few hours.
Click to expand...
Click to collapse
Check IMEI and serial if corrupted. If it shows your correct IMEI and serial then it's fine. Otherwise you may have an EFS problem.
Report back please.
Benko111 said:
Check IMEI and serial if corrupted. If it shows your correct IMEI and serial then it's fine. Otherwise you may have an EFS problem.
Report back please.
Click to expand...
Click to collapse
IMEI and serial are both fine (non-zero and non-null anyway). IMEI matches the label from the smashed phone. However, it's connected at the moment (just re-flashed the stock ROM again). Will update again the next time it loses service.
EDIT: Just lost service again. Only took about 10 minutes after flashing. IMEI and serial are still fine. I also forgot to mention that the motherboard I'm using is from a New Zealand phone, whereas the casing/screen is from a French phone. Don't know if that makes a difference. I tried flashing a French stock ROM, but that gave me an unknown baseband and null IMEI. Flashing the NZ ROM again fixed that.
EDIT2: And another correction. IMEI and serial showed fine after losing service, but I then rebooted the phone. Still no service, baseband is now unknown, IMEI is null and the serial number is non-zero but different than it was. However, I'm sure if I reflashed the ROM again I'd have service for a few minutes, so it doesn't seem like the EFS is entirely corrupt. I'm scratching my head a bit at this one.
pnz said:
IMEI and serial are both fine (non-zero and non-null anyway). IMEI matches the label from the smashed phone. However, it's connected at the moment (just re-flashed the stock ROM again). Will update again the next time it loses service.
EDIT: Just lost service again. Only took about 10 minutes after flashing. IMEI and serial are still fine. I also forgot to mention that the motherboard I'm using is from a New Zealand phone, whereas the casing/screen is from a French phone. Don't know if that makes a difference. I tried flashing a French stock ROM, but that gave me an unknown baseband and null IMEI. Flashing the NZ ROM again fixed that.
Click to expand...
Click to collapse
Judging from your last two sentences you actally have got an EFS problem. Just to clarify: you get generic IMEI & serial with every other ROM you flashed besides the original NZ stock?
Otherwise it might just be the modem not fitting the ROM, try another (if possible original 3-part stock firmware), but make a Nandroid backup or save your EFS otherwise in case you need it later.
Benko111 said:
Judging from your last two sentences you actally have got an EFS problem. Just to clarify: you get generic IMEI & serial with every other ROM you flashed besides the original NZ stock?
Otherwise it might just be the modem not fitting the ROM, try another (if possible original 3-part stock firmware), but make a Nandroid backup or save your EFS otherwise in case you need it later.
Click to expand...
Click to collapse
Not generic IMEI but null IMEI. Not sure about generic serial, not sure how to tell the difference. And I'm now seeing the same on the NZ stock firmware after a reboot.
Is a Philz Touch EFS backup sufficient? Anything else I should backup as well?
Well, since EFS is broken already it should be sufficient. To be on the safe site you can additionally save the EFS folder with Root Explorer.
If you have a working EFS you would need to save it with an EFS saving tool like 'Samsung Tool' in this forum somewhere.
Then you got to go through the EFS threads for i9300 and hope to be able to fix this.
Benko111 said:
Well, since EFS is broken already it should be sufficient. To be on the safe site you can additionally save the EFS folder with Root Explorer.
If you have a working EFS you would need to save it with an EFS saving tool like 'Samsung Tool' in this forum somewhere.
Then you got to go through the EFS threads for i9300 and hope to be able to fix this.
Click to expand...
Click to collapse
I've already gone through all the EFS threads I could find. Haven't seen anyone with the same problem (sometimes it works, briefly, then it stops). Everyone else with the baseband unknown, IMEI null/null problem seems to have that all the time. Was hoping someone would be able to tell me what's different with mine.
pnz said:
I've already gone through all the EFS threads I could find. Haven't seen anyone with the same problem (sometimes it works, briefly, then it stops). Everyone else with the baseband unknown, IMEI null/null problem seems to have that all the time. Was hoping someone would be able to tell me what's different with mine.
Click to expand...
Click to collapse
How should anybody know from the distance? We can just give hints and point you into directions, now you've got to read & google and if you're
persistent enough you will solve your problem - as long as it's not hardware related.
Another great but a bit chaotic resource:
http://forum.gsmhosting.com/vbb/
Benko111 said:
How should anybody know from the distance? We can just give hints and point you into directions, now you've got to read & google and if you're
persistent enough you will solve your problem - as long as it's not hardware related.
Another great but a bit chaotic resource:
http://forum.gsmhosting.com/vbb/
Click to expand...
Click to collapse
Sorry, just meant that I thought somebody might have seen this exact problem before.
I think I've solved this. Used the repair NV data option (to fix broken baseband) in EFS Professional, and it seems to be working fine. Will see if it's still working after a few days though.
My best guess is that this was a file permissions error.
pnz said:
I think I've solved this. Used the repair NV data option (to fix broken baseband) in EFS Professional, and it seems to be working fine. Will see if it's still working after a few days though.
My best guess is that this was a file permissions error.
Click to expand...
Click to collapse
No, not fixed. Worked fine for a few days then the problem came back. Just tried a non-stock ROM (Omega) and same thing. Trying a CM-based ROM now (ParanoidAndroid), but not too hopeful.
Still don't understand why it works for hours/days, then suddenly stops. Rebooting it fixes it the first few times, then that stops working as well (and I get baseband unknown at this point). Flashing a new ROM always fixes it, for a few hours/days anyway.
Sounds like a hardware issue, possibly nand memory becoming corrupt hence why it works for a while on a fresh install.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
Sounds like a hardware issue, possibly nand memory becoming corrupt hence why it works for a while on a fresh install.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
Any workarounds you can suggest? Just had the problem happen again on cyanogenmod, so that didn't fix it.
Try reading the freezing thread in general forum, see if the memory test tool will compete after a full wipe and fresh install of a stock firmware.
Other than that only a new motherboard, as the emmc chip is damaged.
Hey everyone,
I have this problem along time already, which when I dail then I can't hear any dial tone
and when the other side answer's we can't hear each other.
I have tried so many solutions such as changing a cell company and changing modems: NEUGND1, JKUGNB2
When I'm really really lucky I am succeeding to make a call, but this situation is really annoying.
Any ideas ?
Flash the full stock firmware for your country with Odin then factory reset, if still the same then you have a hardware issue.
boomboomer said:
Flash the full stock firmware for your country with Odin then factory reset, if still the same then you have a hardware issue.
Click to expand...
Click to collapse
I'm almost sure that it's not a hardware issue since it started to happen only when I flashed the cw11 room.. Is there any other way to check this problem?
erezhazan1 said:
I'm almost sure that it's not a hardware issue since it started to happen only when I flashed the cw11 room.. Is there any other way to check this problem?
Click to expand...
Click to collapse
The only way to be 100% sure is to change rom or flash to stock so that you can rule out software issue.Just make a nandroid backup of your current rom then flash back to stock you can do all that in less than 20 minutes
Hey everyone,
On one of my phone restarts some how it took more then a regular restart (the time that takes a phone to start from a new flash)
SO after couple of minutes the phone booted up clean, with everything erased! luckily for me Google saves most of the information
on the cloud so most of my stuff were restored (made me make the backups of stuff in more often time)
The weird thing is that suddenly I can make calls without any problems (what a mystery ha ?)
And now I'm afraid to make any upgrade to a newer CM snapshot version haha. (even though I can make a nano backup and try it out)
Thanks for the help !
Hello all,
My partner bought a Galaxy S3 (GT-i1900) International (I live in the UK) off a friend .
We noticed that the network connection periodically failed. I noticed that the software was some of the earliest on this phone, and so i thought I'd better update it, as it was suggested that sometimes if the phone is running some of it's earliest software it can cause problems with the network connection, and as it works 95% of the time, surely it can't be the antenna? I went to software update and tried to update it there, it's then I realised the phone had been rooted, and even Kies would not update it. I came to the conclusion that perhaps my friend had tried to mess with the phone some how, and may have caused this network problem, or perhaps was trying to cure it? Who knows
I decided to flash the latest stock rom (i9300XXUGMK6_I9300OXAGMK6_I9300XXUGMK6_HOME.tar.md5) I found on Sammobile. Everything went well, the phone booted up perfectly, the only minor worry being that the first screen was in Polish, quickly remedied by changing the language to English UK. All seemed fine, until we tried to make a call. it was then we realised that there was no network connection whatsoever. I tried other sim cards with other networks - still no connection. It only shows the signal bars.
I read the forums for a couple of days and tried:
Going in Network Settings and searching for my network, 3, which it found amongst all others. it said 'Registered on Network' but then immediately flashed up '3 network not connected' or similar. fail.
Installing CWM recovery, then flashing the 2 modem zips (DDEMG2 & XXDME4) all went fine, but the phone still says 'disconnected' under Device settings Mobile network state
Using the Ariza patch. I tried this, but on the last step where it says 'just click patch' mine gets stuck on a downloading state, possibly as I'm using a stock rom I read some kernel has to be changed first? - Beyond me.
It was then I decided to scrutinize every difference between my working S3, exactly same phone on same network, and my partners.
The IMEI number was correct, something I see people have problems with. The signal strength reading are the same, suggesting the antenna at least is fine.
The serial number - Now this is the ONLY thing I can see that seems to have been changed, from the correct format, to one starting with 4df1 ...... Is this the problem, that has made the phone not register with network? In the UK phones are not locked into a specific phone number /contract and so I don't see how the network would decline a differing serial number?
Anyway that's where I'm at a phone that has no network connection, with a differing serial number.
Any help would be GREATLY appreciated.
extra[/ATTACH]
Screenshots of the device status in case that helps . SCREENSHOTS REMOVED DUE TO PRIVATE INFO
I've noticed after Googling the baseband version, it says 'New modem DDEMG2 (16/07/13) India,Sri Lanka,Bangladesh'
I live in the UK and have a network free unlocked unbranded International S3!
Surely the steps I followed to flash the modems as stated above are incorrect?!
Do I need to flash the UK one?
Anyone know which one for 4.3?
How do I do it and where would I find it?
Any help greatly appreciated!
ricrea said:
extra[/ATTACH]
Screenshots of the device status in case that helps .
I've noticed after Googling the baseband version, it says 'New modem DDEMG2 (16/07/13) India,Sri Lanka,Bangladesh'
I live in the UK and have a network free unlocked unbranded International S3!
Surely the steps I followed to flash the modems as stated above are incorrect?!
Do I need to flash the UK one?
Anyone know which one for 4.3?
How do I do it and where would I find it?
Any help greatly appreciated!
Click to expand...
Click to collapse
Go to Samsungmobile and download 4.3 BTU ( it's for Uk,simfree phones.) Flash via Odin,maybe that will help
Sent from my GT-I9300 using XDA Free mobile app
thanks so much for the response!
Im sure that romwas the btu one? Does it not seem correct? I will check again.
ricrea said:
thanks so much for the response!
Im sure that romwas the btu one? Does it not seem correct? I will check again.
Click to expand...
Click to collapse
I don't think so since setup started in Polish
Sent from my GT-I9300 using XDA Free mobile app
Attached is the screenshot the latest 4.3 btu. It wants me to download. Ive just looked on the phone, and it is the same
name exactly, and this is where I got it from. What could have gone wrong?
many thanks
ricrea said:
Attached is the screenshot the latest 4.3 btu. It wants me to download. Ive just looked on the phone, and it is the same
name exactly, and this is where I got it from. What could have gone wrong?
many thanks
Click to expand...
Click to collapse
You mean Pda,Csc and Modem are the same? Or md5 is the same?
Sent from my GT-I9300 using XDA Free mobile app
YOU ARE CORRRECT. Im downloading and the file name is different. No idea what i did.
Thanks for your help.
ricrea said:
YOU ARE CORRRECT. Im downloading and the file name is different. No idea what i did.
Thanks for your help.
Click to expand...
Click to collapse
Report back if you get your network back:thumbup:
Sent from my GT-I9300 using XDA Free mobile app
ricrea said:
YOU ARE CORRRECT. Im downloading and the file name is different. No idea what i did.
Thanks for your help.
Click to expand...
Click to collapse
Hi couple of things first you have posted screen shots with your mobile no and Imei no on I would delete them
I am pretty sure flashing another rom won't fix your issue you can easily use roms from a different region and still have full network connection but you can give it a try as suggested above.
First thing first because you have upgraded your phone your efs as changed from efs v1 to efs v2 (which you probably already know) flashing the (DDEMG2 & XXDME4) modems would not work because you need a modem later than mg4 for 4.3 roms.
What you need to try is flash a patched mk6 modem and kernel from here >> https://drive.google.com/folderview...sharing&tid=0B6MIUd7HJudAbU5YaGkzOUowMG8#list << flash then reboot if you get stuck in a bootloop factory reset and wipe cache in recovery.You could also try this >> http://forum.xda-developers.com/gal...ii-network-problem-update-sn-t1918601/page199 << look at post 1984 this is basically the same thing with a rom included and as had some success.
If the patched modems do not work and you don't have a efs backup then I would suggest you need to send for repair.
tallman43 said:
Hi couple of things first you have posted screen shots with your mobile no and Imei no on I would delete them
I am pretty sure flashing another rom won't fix your issue you can easily use roms from a different region and still have full network connection but you can give it a try as suggested above.
First thing first because you have upgraded your phone your efs as changed from efs v1 to efs v2 (which you probably already know) flashing the (DDEMG2 & XXDME4) modems would not work because you need a modem later than mg4 for 4.3 roms.
What you need to try is flash a patched mk6 modem and kernel from here >> https://drive.google.com/folderview...sharing&tid=0B6MIUd7HJudAbU5YaGkzOUowMG8#list << flash then reboot if you get stuck in a bootloop factory reset and wipe cache in recovery.You could also try this >> http://forum.xda-developers.com/gal...ii-network-problem-update-sn-t1918601/page199 << look at post 1984 this is basically the same thing with a rom included and as had some success.
If the patched modems do not work and you don't have a efs backup then I would suggest you need to send for repair.
Click to expand...
Click to collapse
Thanks. I have absolutely no idea what EFS is or how to back up. I would never have usually played with a phone like this it's just my partner was getting fed up of the connection disapearing every now and again, forcing her to reset. I have about 12 hours worth of knowledge on root access, flashing and modifying phones. I am worried I'm going to completely brick the phone. Is there anyway I can make a back of the phone as it is so that if I mess things up I can some how reset it, as at the moment I have Nothing as such. I am going to read up on EFS, I suspect due to the fact the phone was already rooted when I bought it, yet still stuck on the original software and and not updated in anyway, with a pre-exsisting network connection issue, that the phone was already un fixable. I hope not.
I will try all the steps suggested and post results.
Thanks a lot people
ps i hardly have any experience of using forums so sorry if i'm making a mess of this
ricrea said:
Thanks. I have absolutely no idea what EFS is or how to back up. I would never have usually played with a phone like this it's just my partner was getting fed up of the connection disapearing every now and again, forcing her to reset. I have about 12 hours worth of knowledge on root access, flashing and modifying phones. I am worried I'm going to completely brick the phone. Is there anyway I can make a back of the phone as it is so that if I mess things up I can some how reset it, as at the moment I have Nothing as such. I am going to read up on EFS, I suspect due to the fact the phone was already rooted when I bought it, yet still stuck on the original software and and not updated in anyway, with a pre-exsisting network connection issue, that the phone was already un fixable. I hope not.
I will try all the steps suggested and post results.
Thanks a lot people
ps i hardly have any experience of using forums so sorry if i'm making a mess of this
Click to expand...
Click to collapse
Don't worry just take your time and read all the guides if you install a custom recovery you can do a nandroid backup which is basically a full backup of everything on your phone and will restore your phone to how it was before (if you do it right) I recommend using PhilZ recovery and flash it with Odin.
tallman43 said:
Don't worry just take your time and read all the guides if you install a custom recovery you can do a nandroid backup which is basically a full backup of everything on your phone and will restore your phone to how it was before (if you do it right) I recommend using PhilZ recovery and flash it with Odin.
Click to expand...
Click to collapse
I have cwm recovery will this suffice?
I'm using Samsungtool as we speak to back up the EFS folder.
ricrea said:
I have cwm recovery will this suffice?
I'm using Samsungtool as we speak to back up the EFS folder.
Click to expand...
Click to collapse
Yep that will do fine although you are backing up a partially corrupt efs that's the reason you are not getting a signal because the efs v2 can't read the modern correctly that's why you may need a patched modem & kernel to help read it.But back it up anyway in case the efs gets any worse and gets totally corrupt.
tallman43 said:
Yep that will do fine although you are backing up a partially corrupt efs that's the reason you are not getting a signal because the efs v2 can't read the modern correctly that's why you may need a patched modem & kernel to help read it.But back it up anyway in case the efs gets any worse and gets totally corrupt.
Click to expand...
Click to collapse
That was my thinking, the IMEI isn't corrupt yet so I thought best to back up what I have. Ive also backed up using CWM.
Im now trying to flash the proper version of 4.3 for my unlocked uK S3, so im at least using the correct os.
Im flashin zip from cwm, but when i select it on my sd card, it says the following:
Finding update package...
Opening update package...
Installing update...
Installation aborted.
Any ideas why it won't install? Iv'e been Googling it
for 2 hours.
cheers
update - I spent ten hours downloading the proper rom 4.3 btu uk unlocked one, finally flashed it using mobile odin.....
started in Polish again - with no network. I think that this is standard.
Next, I am going to try to flash the patched modem.
tallman43 - do you think my strange serial number needs to be corrected? Is this possible or necessary?
Many thanks - one very tired migraine creating finger-nail biter.
Update:
I finally got the phone to work by following the instructions on the page below;
http://forum.xda-developers.com/galaxy-s3/help/guide-fixing-gt-i9300-network-4-3-stock-t2609635
The patched kernel didn't work on it's own, but the kernel I installed from this thread, along with the other two files, seemed to work, and though the phone is now registered using a much better Android 4.3, it still disconnects every now and again forcing a restart. I really wish I could work out why it does this, I'm starting to believe it may be a hardware issue now.
Is there a program that I could use to test the part of the phone that malfunctions and loses signal completely, to try and work out what is happening when the phone suddenly loses all signal and shows only a circle with a line on it (no sign)
Many thanks to all the people who helped me with this I really appreciate it.
I want to close this thread now as what I require now is off topic from the original post so many thanks for your help people.
Hy everybody. I'm here to took with you about a common problem on samsung s3. One week ago i notice that i can't receive calls, messages etc and i found the "not registered on network" problem. What actually i want to say, is the fact that it appear suddenly, my phone always have 4.3, i didn't upgrade nothing....the problem persist, i changed sim, modem.bin, flash 4.1, modified network connections from setting....nothing work!!! I always have signal but that's all....what can i do more? (and my imei has changed to this: 00499*******
international variant
Perseus said:
Can you please let us know if you have international variant or US Variant ? If US then which carrier please ?
Click to expand...
Click to collapse
My phone is a international variant, made in Vietnam, i also tryed to flash 4.1.2 I9300XXEMG4, so then i can flash MG4 modem which can still read the modified EFS...if it is modified, but didn't work.., i think i need to send the phone to a gsm/service, but maybe you guys can help me without cost me money..
Perseus said:
I will request to have your thread moved to appropriate forum.
Click to expand...
Click to collapse
thx man, i hope someone knows how can i solve the problem.
What had you done before you got to this issue of no cellular signal?
Did you flash a custom ROM etc..? Which version were you on before? 4.3?
What did you do after you found out about this issue? Did you by any chance flash an older version?
Because that tends to do that, atleast that's what happened to me.
I had a wrong/fake IMEI ("0049..."), which caused that I had no cell reception and couldn't use the phone to call or send/receive sms etc...
I googled a lot and I tried some of the TUT on the web, but nothing helped. Until I found a thread on the xda that said one could try to flash a newer stock ROM (don't know the exact thread).
So I went ahead and checked the version I was on...luckily it was 4.0.4
I then downloaded a newer stock ROM 4.3 for my region and flashed that using ODIN...once it passed I went to recovery: wiped cache and factory reset.
and voila...when I checked the IMEI code again, it was back to the original one.
If that doesn't help check the following thread on xda: here
I suspect he allowed the battery to run out, which corrupted the efs partition, as he says his phone was on 4.3 and didn't change anything until after the problem happened.
Flashing latest stock firmware is the first step, as suggested above, but I think the OP may have to pay for a repair. Make sure it works on 4.3 before you accept the bill.
I forgot to say, my battery got bigger before that happened, i can't fit it in my phone, is double than a normal one, i buy other battery, have this something to deal with the problem?
Sent from my GT-I9300 using XDA Free mobile app
contactmsd said:
What had you done before you got to this issue of no cellular signal?
Did you flash a custom ROM etc..? Which version were you on before? 4.3?
What did you do after you found out about this issue? Did you by any chance flash an older version?
Because that tends to do that, atleast that's what happened to me.
I had a wrong/fake IMEI ("0049..."), which caused that I had no cell reception and couldn't use the phone to call or send/receive sms etc...
I googled a lot and I tried some of the TUT on the web, but nothing helped. Until I found a thread on the xda that said one could try to flash a newer stock ROM (don't know the exact thread).
So I went ahead and checked the version I was on...luckily it was 4.0.4
I then downloaded a newer stock ROM 4.3 for my region and flashed that using ODIN...once it passed I went to recovery: wiped cache and factory reset.
and voila...when I checked the IMEI code again, it was back to the original one.
If that doesn't help check the following thread on xda: here
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I was on 4.3 version, i didn't do nothing, i even not installed the root/cwm....the problem appeared from nothing...right before i change my battery. I tried with my region stock rom (4.1.2;romania) and with 4.3 stock ROM but didn't work.
Today i let the phone on a service....i told her what is the problem and i hope there's nothing to do with motherboard. Anyway, please let me know if there's something else to do while i wait 3-4 days for the answer
Spike97 said:
I forgot to say, my battery got bigger before that happened, i can't fit it in my phone, is double than a normal one, i buy other battery, have this something to deal with the problem?
Sent from my GT-I9300 using XDA Free mobile app
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That's not good...bulging/expanding battery is a very bad thing and should be replaced asap.
Why it happens, is another thing...could be due to various reason such as thermal runaway or even acid leakage.
Fix that first before you move to any flashing and/or other stuff...
contactmsd said:
That's not good...bulging/expanding battery is a very bad thing and should be replaced asap.
Why it happens, is another thing...could be due to various reason such as thermal runaway or even acid leakage.
Fix that first before you move to any flashing and/or other stuff...
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Click to collapse
I already replaced it.
Fixed
Hi everybody, i finally sent the phone to service and they fixed it for 17€; everything ok, no problem occurred...i flashed stock 4.3 ROM, then CWM and SU, but....then....after one day of use, i forgot to shut down the phone and, again, removed the battery with the screen on....i connected quickly the battery and the phone started without press any button.....and then, surprise!!! Me trying to make a phone call: "Not registered to network"...fu**...but IMEI was still alright(w t f?). Third day i sent again the phone to the service and they told me that i am playing whit the soft (what man? just because i flashed CWM and SU? damn), i told them again what i do with the battery and they said is not true (now what i am supposed to do? they don't trust me) but fixed it again free..for first and last time. Now here is the question: what i need to back up in case that will happen again? It can't be fixed with a backup of IMEI/Modem file...
Go read the sticky thread in general forum.