Return To Stock No Signal - Galaxy S III Q&A, Help & Troubleshooting

I returned to stock due to Omega v49 breaking my signal. I still have no signal. I have no idea why. I have no idea on what to do.
Edit: It shows the right access point. No signal. It also comes up with an error when trying to update.

Most common cause of signal issues recently is the efs format change, check if your imei number matches the one under the battery.

Imei numbers do not match. I'm not good with this sort of thing. Efs not working either. Is that it? Nothing else I can do? Tried searching but xda search comes up with nothing helpful.
boomboomer said:
Most common cause of signal issues recently is the efs format change, check if your imei number matches the one under the battery.
Click to expand...
Click to collapse

Hi,
We have a sticky thread all about IMEI / EFS issues. This is because if you do a search here now, you'll find literally hundreds of threads all about the same thing.
Please go to:
general > Sticky roll-up thread > "IMEI / EFS - Know this stuff"
... have a read. If you have further questions, please feel free to ask them in that thread. We set it up to try and keep the forum tidy.
Thanks
-----------------------
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I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit

Ha_Ha Shoes said:
Imei numbers do not match. I'm not good with this sort of thing. Efs not working either. Is that it? Nothing else I can do? Tried searching but xda search comes up with nothing helpful.
Click to expand...
Click to collapse
Have a read of the sticky in general forum 'efs know this stuff'.
Usually installing an EMG modem and kernel will solve the issue, or restoring your backup of the efs folder if you need an earlier modem.
Edit: Hah! The author of that sticky beat me to it!

Thread Closed
Duplicate

Related

[HELP] Network issues i9300

My phone was running the latest version of MIUI and everything was fine, until i decided to flash UltimaRom v15. Now my phone is on emergency calls only and in the notification tray it says network selected not available. BTW i have backups of when the phone was full stock, the EFS (used k-tool) and when it was on MIUI.
huitzilopoctil said:
My phone was running the latest version of MIUI and everything was fine, until i decided to flash UltimaRom v15. Now my phone is on emergency calls only and in the notification tray it says network selected not available. BTW i have backups of when the phone was full stock, the EFS (used k-tool) and when it was on MIUI.
Click to expand...
Click to collapse
I have the same problem installing the S4 Revolution ROM V6 but i have destroyed the backups HELP!
Mrkijo said:
I have the same problem installing the S4 Revolution ROM V6 but i have destroyed the backups HELP!
Click to expand...
Click to collapse
sorry to hear about your backups being destroyed. i've been down that road before.
Hi,
We have a sticky thread all about IMEI / EFS issues. This is because if you do a search here now, you'll find literally hundreds of threads all about the same thing.
Please go to:
general > Sticky roll-up thread > "IMEI / EFS - Know this stuff"
... have a read. If you have further questions, please feel free to ask them in that thread. We set it up to try and keep the forum tidy.
Thanks
rootSU said:
Hi,
We have a sticky thread all about IMEI / EFS issues. This is because if you do a search here now, you'll find literally hundreds of threads all about the same thing.
Please go to:
general > Sticky roll-up thread > "IMEI / EFS - Know this stuff"
... have a read. If you have further questions, please feel free to ask them in that thread. We set it up to try and keep the forum tidy.
Thanks
Click to expand...
Click to collapse
Thanks I'm actually reading through those threads now.

[Q] Downgrade from official 4.2.2 leak to 4.1.2 official or ROM

I have this question, what happen if i downgrade from official 4.2.2 leakto 4.1.2 stock or ROM, because when flashing through CWM S4 REVOLUTION V6 when my i9300 finally booted up my signal was lost & my IMEI was 0049******** etc, etc then i just flashed MG4 MODEM and all got back to normal, so i´d like to really downgrade but i dont wanna mess it up you know, can u please help me guys, thanks
Hi,
We have a sticky thread all about IMEI / EFS issues. This is because if you do a search here now, you'll find literally hundreds of threads all about the same thing.
Please go to:
general > Sticky roll-up thread > "IMEI / EFS - Know this stuff"
... have a read. If you have further questions, please feel free to ask them in that thread. We set it up to try and keep the forum tidy.
Thanks
-----------------------
Sent via tapatalk.
I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
rootSU said:
Hi,
We have a sticky thread all about IMEI / EFS issues. This is because if you do a search here now, you'll find literally hundreds of threads all about the same thing.
Please go to:
general > Sticky roll-up thread > "IMEI / EFS - Know this stuff"
... have a read. If you have further questions, please feel free to ask them in that thread. We set it up to try and keep the forum tidy.
Thanks
-----------------------
Sent via tapatalk.
I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
Click to expand...
Click to collapse
thanks for reply but first of all i dont have the 10 required post to "post" on another threat, second i dont have any problems with EFS or IMEI i have EFS backup actually, and my question is totally diferent about EFS or IMEI issues, its about the result of downgrading from 4.2.2 leak firm to 4.1.2 official firm,
Thepho3nix said:
thanks for reply but first of all i dont have the 10 required post to "post" on another threat, second i dont have any problems with EFS or IMEI i have EFS backup actually, and my question is totally diferent about EFS or IMEI issues, its about the result of downgrading from 4.2.2 leak firm to 4.1.2 official firm,
Click to expand...
Click to collapse
1) You can only not post on dev section with less than 10 posts. You can post in general just fine. In fact, you posted this thread in general (which was the wrong place actually, questions go in Q&A, except IMEI questions, which go in my thread )
2) Your question is not different in any way. If you take the time to read the thread I suggested you read, you would know that.
Thepho3nix said:
my IMEI was 0049******** etc,
Click to expand...
Click to collapse
Thepho3nix said:
i dont have any problems with EFS or IMEI
Click to expand...
Click to collapse
You are contradicting yourself here. If your IMEI was 0049 then you did have an EFS / IMEI problem. My thread explains WHY and also WHAT you must do to keep your IMEI correct, so it answers all your questions.
rootSU said:
1) You can only not post on dev section with less than 10 posts. You can post in general just fine. In fact, you posted this thread in general (which was the wrong place actually, questions go in Q&A, except IMEI questions, which go in my thread )
2) Your question is not different in any way. If you take the time to read the thread I suggested you read, you would know that.
You are contradicting yourself here. If your IMEI was 0049 then you did have an EFS / IMEI problem. My thread explains WHY and also WHAT you must do to keep your IMEI correct, so it answers all your questions.
Click to expand...
Click to collapse
ohhhh i see now thanks for all dude
Please refer to the above mentioned thread
Thread Closed

no service except for one modem

I can't flash any modems except for xxemg4. This is the only modem that works for me! Why is that? Did I change my imei sonehow? I dont have an efs backup.. I think..
Bei60 said:
I can't flash any modems except for xxemg4. This is the only modem that works for me! Why is that? Did I change my imei sonehow? I dont have an efs backup.. I think..
Click to expand...
Click to collapse
You are an Idiot
Sent from my GT-I9300 using xda app-developers app
Bei60 said:
I can't flash any modems except for xxemg4. This is the only modem that works for me! Why is that? Did I change my imei sonehow? I dont have an efs backup.. I think..
Click to expand...
Click to collapse
No you didn't Samsung did. Get you're phone to a working state and bkup up you're efs with ktool. It's a must do thing to bkup you're efs folder. And for mg4 modem... you have to stick with that for now. You need to read more :thumbup:
Egorych said:
You are an Idiot
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Like my signature say's there is no such thing as a daft question only a daft answer and yours is certainly a daft answer :silly:
Do as andrewwright say's and definitely look at this guide http://forum.xda-developers.com/showthread.php?t=2393289
Hi,
We have a sticky thread all about IMEI / EFS issues. This is because if you do a search here now, you'll find literally hundreds of threads all about the same thing.
Please go to:
general > Sticky roll-up thread > "IMEI / EFS - Know this stuff"
... have a read. If you have further questions, please feel free to ask them in that thread. We set it up to try and keep the forum tidy.
Thanks
-----------------------
Sent via tapatalk.
I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
rootSU said:
Hi,
We have a sticky thread all about IMEI / EFS issues. This is because if you do a search here now, you'll find literally hundreds of threads all about the same thing.
Please go to:
general > Sticky roll-up thread > "IMEI / EFS - Know this stuff"
... have a read. If you have further questions, please feel free to ask them in that thread. We set it up to try and keep the forum tidy.
Thanks
-----------------------
Sent via tapatalk.
I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
Click to expand...
Click to collapse
I would like to try different modems. I read Im on EFS V2 so are there any other modems that I can try to resolve my wakeclocks? It drains my battery...

Question | about IMEI burn through a box

Hello everyone.
I installed CM 4.4 ROM is unofficial then I did not like it so I put rum OMEGA V51 4.3 Suddenly I saw listed calls only so I tried to fix it at home and I could not so I went to the lab and they buy me a box with recording NSPRO now they stung me Rom 4.1. 2 and now I want to burn an altitude of OMEGA V51 I can without problems or that my IMEI will return to 0049
thanks to helpers.
You can move to a custom Rom, but you will have problems if you don't understand the changes to the efs format.
Start by reading the sticky thread, efs 'know this stuff' in general forum. There is no ready answer and there are hundreds of similar posts, you are required to search before posting new threads.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
You can move to a custom Rom, but you will have problems if you don't understand the changes to the efs format.
Start by reading the sticky thread, efs 'know this stuff' in general forum. There is no ready answer and there are hundreds of similar posts, you are required to search before posting new threads.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
I can not find you can show me something repaired the IMEI Box NSPRO his way or the other and managed to install a ROM without problems
tnx
Amitayy said:
I can not find you can show me something repaired the IMEI Box NSPRO his way or the other and managed to install a ROM without problems
tnx
Click to expand...
Click to collapse
Your question has been posted multiple times . Forum rules require you to search before posting .
Google <<< I9300 your search terms > xda
STICKYS
http://forum.xda-developers.com/showthread.php?t=2344125
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Downgrade and network problems .
http://forum.xda-developers.com/showthread.php?t=2531221
My question is if stung me with a box so I can then install Rom without problems
And bringing all links
Amitayy said:
My question is if stung me with a box so I can then install Rom without problems
And bringing all links
Click to expand...
Click to collapse
Try explaining bee sting what ??
Mod Edit
Please read the stickies in General
Thread closed
malybru
Forum Moderator

[Q] help before flashing a new rom (PLEASE DON'T CLOSE THE THREAD)

please don't delete or close the thread..it's a help section and i want help..so closing it will make no sense
now i am on EMF6 stock rom and i was having the 0000 serial number problem and got it fixed by ariza patch v0.5
i want to flash mj9 rom..i know that there will be a problem with the efs thing
so what steps should i make before flashing the rom?
i have read the efs related threads and still dont know what to do
Yes, there will be a problem with your serial number, you will lose network connection. Patched modem will probably help but you'll have to try before you'll know.
Else stay with your current rom, as everything works.
This information is already available in many, many threads -starting a new one so that you get a personal answer, also dictating to the moderators is pretty arrogant.
Sent from my GT-I9300 using Tapatalk
can i flash the rom then apply ariza patch again?
sevomemo said:
can i flash the rom then apply ariza patch again?
Click to expand...
Click to collapse
Your question has been posted multiple times . Forum rules require you to search before posting .
Google <<< I9300 your search terms > xda
So mods will close if reported .
STICKYS
http://forum.xda-developers.com/showthread.php?t=2344125
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Downgrade and network problems .
http://forum.xda-developers.com/showthread.php?t=2531221
i read that efs thread several time and still dont know what to do
i dont know why its so hard for anyone just to write the steps if it's been asked several times
you could write the steps instead of writing those links
sevomemo said:
i read that efs thread several time and still dont know what to do
i dont know why its so hard for anyone just to write the steps if it's been asked several times
you could write the steps instead of writing those links
Click to expand...
Click to collapse
There are two live open threads on EFS/ IMEI Network problems we do not need yet another identical question .
Steps are written multiple times .
i searched and cant find a case like mine..you tell me..PLEASE
sevomemo said:
i searched and cant find a case like mine..you tell me..PLEASE
Click to expand...
Click to collapse
If your phone is working then do not flash anything .
i want to update
Then do so, but your phone will stop working. A patched modem thread was made for people who'd used ariza, search for it.
Sent from my GT-I9300 using Tapatalk
I'm afraid but we do not allow discussions on imei modifications (in contrast to those on backup/restore). The good members here have already shown you a path, it is your choice to walk through it. If you expect someone to hold your hand and feed you all the steps, then that's not gonna happen.
Thread closed, irrespective of title.
A.cid
Forum Moderator

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