[Q] Galaxy S3 to stock - No cell conenction - Galaxy S III Q&A, Help & Troubleshooting

I have been using custom roms for 2 years. Decided to go stock. I am in Australia, and my Galaxy S3 (T) is bought through a group called Crazy Johns, but they are owned by Vodafone.
I found a stock ROM:
I9300XXEMC2_I9300OXAEMC2_BTU
I flashed it successfully, and all starts up nicely. However, I can't get any cellular data. No calls... no data.
I manually try to connect to Vodafone network in the Network settings, but then get told "Vodafone unavailable".
I then tried to download a new modem, hoping that was the issue.
I got one called modem_RIL_CWM_I9300TDUEMB1
No luck.
I then thought, OK, maybe Vodafone isn't allowing my pone on the network, because the firmware isn't a Vodafone official one? But, that can't be right. I could have bought my phone from outside Australia.
Funny thing is, when I got the phone, it shows 'Crazy Johns' on the settings screen. Now, I have no mention of Crazy Johns. Is it modem related?

Were you on a MG4 firmware before?

Alex---1 said:
Were you on a MG4 firmware before?
Click to expand...
Click to collapse
I'm not sure. I was using Omega 43.9 firmware version before, and it was working fine.
Details on their page are:
Based on firmware XXEMG5 Android 4.1.2 (Date: 17/07/2013)
Kernel Stock XXEMG5
Modem DDEMG2
Multi 130 csc set to EUR
I see an 'MG5' there.
Could this be an issue?

Cralis said:
I'm not sure. I was using Omega 43.9 firmware version before, and it was working fine.
Details on their page are:
Based on firmware XXEMG5 Android 4.1.2 (Date: 17/07/2013)
Kernel Stock XXEMG5
Modem DDEMG2
Multi 130 csc set to EUR
I see an 'MG5' there.
Could this be an issue?
Click to expand...
Click to collapse
Not sure if this is the same for MG5 but here are the issues MG4 causes which sounds a lot like what you have?
http://forum.xda-developers.com/showthread.php?t=2377731
Dial *#06# and see if you're IMIE number starts with '0049'

Yes. You.must stick with the mg2 or mg4 baseband now. Mg5 rom comes with mg2 baseband. Mg4 rom comes with mg4 baseband
Sent from my GT-I9300 using Tapatalk 4
---------- Post added at 01:40 AM ---------- Previous post was at 01:39 AM ----------
Alex---1 said:
Not sure if this is the same for MG5
Click to expand...
Click to collapse
Yes it is
Sent from my GT-I9300 using Tapatalk 4

Thanks captain!
Solved!
Found a modem:
http://forum.xda-developers.com/showpost.php?p=44078538
And hey presto!
Thanks man! :good:

Cralis said:
Thanks captain!
Solved!
Found a modem:
http://forum.xda-developers.com/showpost.php?p=44078538
And hey presto!
Thanks man! :good:
Click to expand...
Click to collapse
Just a note to anyone reading this.... this modem contains a RIL so do not flash on AOSP.
Sent from my GT-I9300 using Tapatalk 4

Mg5 and mg4 are the latest modem. If you were on it you can't go on the older one. You have to do 2 thinks: if you have the efs backup do restore, it's contain your imei, because now you lost it, or flah the mg4 or mg5 modem. But you find everything on the s3 general section.
Sent from my GT-I9300 using xda app-developers app

charlyboy1 said:
Mg5 and mg4 are the latest modem. If you were on it you can't go on the older one. You have to do 2 thinks: if you have the efs backup do restore, it's contain your imei, because now you lost it, or flah the mg4 or mg5 modem. But you find everything on the s3 general section.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Mg2 and mg4 are the latest modems which come with mg5 and mg4 rom.
Also it appears its flashing the rom that modifies efs now. Flashing modem alone does nothing
Sent from my GT-I9300 using Tapatalk 4

rootSU
Any chance you could help me out? I started a thread yesterday with my own problems with a couple of replies but nothing that really explained how to solve my problem.
I flashed a MIUI rom based on CM10.1 with a baseband I9300XXDLI8, because of wifi problems decided to go back to stock I9300OXAALE8 (BTU)
Had the messed up IMEI problem but my EFS backup I made in Dec 12 is only 32kb! Copied all files to efs folder on phone and got my IMEI number back but phone wouldn't accept my contract 3UK sim (no network - emergency calls etc) but would my O2 PAYG sim.
I flased a custom rom (GlamourS4) and ended up with baseband I900DDEMG2 and build I900XXUFME7. I was advised to reflash because my baseband was different to my firmware, downloaded latest BTU from sammombile and phone now reads:
Baseband I9300XXEMG4 - Build I9300XXEMG4 but I'm still having problems with my phone not accepting my 3 sim but ok with O2 sim. Phone is on 3 contract by the way.
Sorry to hijack someone's thread but getting a little desperate, old age is creeping in and I'm honestly finding it difficult to understand the talk about modems etc.My original help request is HERE and has screen shots if it's any help. Thanks in advance

Thread moved to proper forum.

Related

Want to go back to stock, which ROM should I install?

I haven't found a custom ROM I've liked, so I want to go back to the stock Samsung ROM for my i9300 (UK).
Which should I download and flash to my phone? I9300XXEMG4?
I would, it's best BTU firmware to date
slaphead20 said:
I would, it's best BTU firmware to date
Click to expand...
Click to collapse
I had to Google "BTU". I believe it's a UK firmware variant.
The other UK firmware variants seem to be: "BTC, CPW, H3G, O2I, O2U, ORA, OXA*, TMU, TSC, VIR, VOD, XEU"
What's the difference between them all, and is BTU the one I want?
BTU is unbranded like from carphone warehouse as opposed to branded that you get direct from the carrier
please try to remember; questions go in the q&a section. General isn't for questions
Sent from my GT-I9300 using Tapatalk 4 Beta
Holy crap, I9300XXEMG4_I9300OXAEMG4_BTU.zip is 850 MB :| Talk about bloated
They're all that big. Fyi mg4 alters efs. Flash that and you cant use any other baseband
Sent from my GT-I9300 using Tapatalk 4 Beta
rootSU said:
They're all that big. Fyi mg4 alters efs. Flash that and you cant use any other baseband
Sent from my GT-I9300 using Tapatalk 4 Beta
Click to expand...
Click to collapse
I don't know what that means.
If you dont know what that means, you definitely shouldn't be flashing things!
I'm not sure how basic I need to be so i'll be as basic as I can.
The s3 has an efs partition. This is a partition on your internal memory that stores your imei number among other things
The imei number is mucho important. Without a working imei number, your phone cannot operate on a mobile network. In otherwords, your phone is nothing more than a miniature wifi tablet.
Every official rom comes with a baseband. This is also known as modem or radio. This is software and its responsible for connecting your phone's telephony Services via the radio hardware to the network.
Many rooted users change their baseband in the hope that they get better signal / battery life
Now here is the problem. The latest official 4.1.2 changes the format of the efs. The mg4 baseband "updates" efs. The baseband works fine and can read the imei and the phone can continue to operate on the network. However this new efs format is not backwards compatible. This means any older baseband (packaged with any rom other than mg4) cannot read imei, meaning you cannot connect to the network. At the moment, only the mg4 baseband can read the updates efs so once you flash this rom (and baseband) it is not possible to use any other baseband. If you flash any rom older than mg4, it will only connect if you then put the mg4 baseband back on.... unless you backed up efs before flashing mg4... in otherwords, once flashed mg4, unless you backed up efs, you can never go backwards with the baseband. Or rom....
Sent from my GT-I9300 using Tapatalk 4 Beta
rootSU said:
If you dont know what that means, you definitely shouldn't be flashing things!
I'm not sure how basic I need to be so i'll be as basic as I can.
The s3 has an efs partition. This is a partition on your internal memory that stores your imei number among other things
The imei number is mucho important. Without a working imei number, your phone cannot operate on a mobile network. In otherwords, your phone is nothing more than a miniature wifi tablet.
Every official rom comes with a baseband. This is also known as modem or radio. This is software and its responsible for connecting your phone's telephony Services via the radio hardware to the network.
Many rooted users change their baseband in the hope that they get better signal / battery life
Now here is the problem. The latest official 4.1.2 changes the format of the efs. The mg4 baseband "updates" efs. The baseband works fine and can read the imei and the phone can continue to operate on the network. However this new efs format is not backwards compatible. This means any older baseband (packaged with any rom other than mg4) cannot read imei, meaning you cannot connect to the network. At the moment, only the mg4 baseband can read the updates efs so once you flash this rom (and baseband) it is not possible to use any other baseband. If you flash any rom older than mg4, it will only connect if you then put the mg4 baseband back on.... unless you backed up efs before flashing mg4... in otherwords, once flashed mg4, unless you backed up efs, you can never go backwards with the baseband. Or rom....
Sent from my GT-I9300 using Tapatalk 4 Beta
Click to expand...
Click to collapse
To sum it up dont flash the newest uk rom.
Sent from my GT-I9300 using xda app-developers app
CHEVYbarracuda1 said:
To sum it up dont flash the newest uk rom.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Or even more summing it up...
"JUST... DONT!"
Or make sure to read a guide about flashing roms before you flash any rom. Especially about backing up your efs folder. A lot of the custom roms have options for doing that or do that automatically so chances are you may already have an efs backup, but better not risk it.
Well he could flash that rom but he has to back up his old efs first for getting safe.
But I do not think he is able to do that due to he is unknowing.
Hobbygamer27 said:
Well he could flash that rom but he has to back up his old efs first for getting safe.
But I do not think he is able to do that due to he is unknowing.
Click to expand...
Click to collapse
No one is explaining what is wrong with the one in I9300XXEMG4.
King Mustard said:
No one is explaining what is wrong with the one in I9300XXEMG4.
Click to expand...
Click to collapse
Wtf? I wrote a massive block of text a few posts back explaining EXACTLY what is wrong with it. Read it again!!!
Sent from my GT-I9300 using Tapatalk 4
King Mustard said:
No one is explaining what is wrong with the one in I9300XXEMG4.
Click to expand...
Click to collapse
Dude learn reading.
Flashing the BTU EMG4 Firmware will change your efs for ever, so if there is any bug or part in this firmware you do not like, the way for backflash will be complicated.
The old modems are not able to run with the new efs, so U have to flash the new modem on the older firmware.
Or you flash back your original efs back.
But this could be very dangerous because people are scared to do that.
Hobbygamer27 said:
Dude learn reading.
Flashing the BTU EMG4 Firmware will change your efs for ever, so if there is any bug or part in this firmware you do not like, the way for backflash will be complicated.
The old modems are not able to run with the new efs, so U have to flash the new modem on the older firmware.
Or you flash back your original efs back.
But this could be very dangerous because people are scared to do that.
Click to expand...
Click to collapse
Apologies.
So which is the latest "safest" stock ROM I should use?
King Mustard said:
Apologies.
So which is the latest "safest" stock ROM I should use?
Click to expand...
Click to collapse
Just instale a safe firmware. not MG4 AND MF6.... i am on XXEME2 ITS THE BEST.
MG4 is perfectly safe, it is a BTU firmware intended for the UK, it works extremely well and it is the users of this forum that don't know what they are doing that make it unsafe... It's as simple as that
danieldp1990 said:
Just instale a safe firmware. not MG4 AND MF6.... i am on XXEME2 ITS THE BEST.
Click to expand...
Click to collapse
I9300XXEME2 does not show up on a search for UK BTU on SamMobile, only I9300XXEMG4 (July 2013) and I9300XXEMB5 (February 2013).
slaphead20 said:
MG4 is perfectly safe, it is a BTU firmware intended for the UK, it works extremely well and it is the users of this forum that don't know what they are doing that make it unsafe... It's as simple as that
Click to expand...
Click to collapse
Does I9300XXEMG4 change much compared to the previous build??
King Mustard said:
I9300XXEME2 does not show up on a search for UK BTU on SamMobile, only I9300XXEMG4 (July 2013) and I9300XXEMB5 (February 2013).
Does I9300XXEMG4 change much compared to the previous build??
Click to expand...
Click to collapse
It have to be BTU? remember the BTU MG4 changes your imei for ever...... so its a risk to flash it. thats why i did not flash the MG4 and flash a earlier version not BTU XXEME2, its sooo nice..

Galaxy S3 Android 4.3 no signal

Yesterday I updated my i9300 to android 4.3
Baseband version I9300BUUGMJ3
Build number JSS15J.I9300XXUGMJ9
..and since then I haven't had any reception. My imei number, serial number, and everything else is same and still there, but I just can't get it to get reception again... When I go to my Mobile Networks, it says registered on network, but again, no reception. Then I tried installing the modem BUUGMJ3 with odin which didn't work. What can help? Stock firmware? Please help.
Thanks in advance.
currently experiencing the same issue mate. I can't seem to find a workaround/solution for this -__-
Is that base band supposed to work in your country? Find an modem later than EMGx, without a RIL, for your country and install that to test.
boomboomer said:
Is that base band supposed to work in your country? Find an modem later than EMGx, without a RIL, for your country and install that to test.
Click to expand...
Click to collapse
I've probably made a big mistake there, no it's meant for mine country, it's for the county near mine, Croatia, but I read somewhere that this doesn't matter.. :/
And by 'later than EMGx' I'm not sure what you mean, but I've flashed EMG4 modem which didn't seem to work.
Found something about flashing a previous modem and restoring your EFS folder, but I do not have my EFS folder backed up - I forgot to.
A few days ago I paid about $30 for a repair on my phone, I don't really want to send it off for repairs again, I really wonder if there is an fix to this
Follow the guides in general forum, stickies on how to flash back to 4.1.2 stock rom. Make sure it's at least EMG4 base band.
boomboomer said:
Follow the guides in general forum, stickies on how to flash back to 4.1.2 stock rom. Make sure it's at least EMG4 base band.
Click to expand...
Click to collapse
Yeah, about that...
first of all, sorry for bugging you so much..
but I downloaded the right stock firmware for my country, I9300XXEMG4_I9300BHTEMH1_I9300XXEMG4, but after I flash it via odin when the phone turns on it gets stuck in a loop showing the Samsung logo repeatedly...
Edit:
Okay, I managed to install the stock firmware 4.1.2 but it still is showing 'Emergency calls only', the modem is xxemg4...
Delko said:
Yeah, about that...
first of all, sorry for bugging you so much..
but I downloaded the right stock firmware for my country, I9300XXEMG4_I9300BHTEMH1_I9300XXEMG4, but after I flash it via odin when the phone turns on it gets stuck in a loop showing the Samsung logo repeatedly...
Edit:
Okay, I managed to install the stock firmware 4.1.2 but it still is showing 'Emergency calls only', the modem is xxemg4...
Click to expand...
Click to collapse
how about your IMEI/Serial numbers? are they still the same before you downgrade and flashed the XEMG4 modem? mine are the same with SN/IMEI so I guess that's why it worked. I just took the risk cause I was really pissed experiencing the lag and the battery drain in 4.3.
Do factory reset from settings option in touch wiz, make sure the imei and serial number match the label under your battery.
If still no good then try another SIM in your phone, final steps would be restore efs backup then repair centre.
thehavoc said:
how about your IMEI/Serial numbers? are they still the same before you downgrade and flashed the XEMG4 modem? mine are the same with SN/IMEI so I guess that's why it worked. I just took the risk cause I was really pissed experiencing the lag and the battery drain in 4.3.
Click to expand...
Click to collapse
Well it's all the same as it used to be. Could it be that the modem I had before EMG4 changed the format of my efs folder?
boomboomer said:
Do factory reset from settings option in touch wiz, make sure the imei and serial number match the label under your battery.
If still no good then try another SIM in your phone, final steps would be restore efs backup then repair centre.
Click to expand...
Click to collapse
Did a factory reset, imei, s/n same.
Android 4.1.2 EMG4 modem still no reception.
It seems that MGX modem has change ur IMEI from /efs1 to /efs2. MGX modem seems to support only 4.3 roms (due to some security issue).
It is not recommended,but u could flash an older rom with modem (get from www.sammobile.com) then restore an efs backup (if u did some) from /efs2 to /efs1
Sent from my GT-I9300 using xda app-developers app
Samsung Galaxy S3 i9300 "not Registered on Network" after 4.3 I9300XXUGMJ9 Update
I recently installed 4.3-official-I9300XXUGMJ9 on my Samsung Galaxy S3 (i9300) and everything went fine. I was upgrading from 4.1.2 but now I am facing “Not Registered on network” Issue. I tried Arzia Patch, tried falshing Modems (I9300XXLG8 and BUUGMJ3 ) nothing Works.
FYI: My serial Kay or IMEI is not 0000 they are fine.
Here’s the list from Setting->About Device->Status<br>
Network: unknown<br>
Service State: Out of service<br>
Mobile Network State: disconnected<br>
Device Status: Official
Also My Sim works fine in other Phones. Any help will be greatly appriciated.
dmarkweb said:
I recently installed 4.3-official-I9300XXUGMJ9 on my Samsung Galaxy S3 (i9300) and everything went fine. I was upgrading from 4.1.2 but now I am facing “Not Registered on network” Issue. I tried Arzia Patch, tried falshing Modems (I9300XXLG8 and BUUGMJ3 ) nothing Works.
FYI: My serial Kay or IMEI is not 0000 they are fine.
Here’s the list from Setting->About Device->Status<br>
Network: unknown<br>
Service State: Out of service<br>
Mobile Network State: disconnected<br>
Device Status: Official
Also My Sim works fine in other Phones. Any help will be greatly appriciated.
Click to expand...
Click to collapse
Ariza patch only works on older modems (efs v1 modems). So, that wont help.
You said you flashed the zuluman modems but.... did you flash the patched kernels too? You need the patched kernels for the patched modems to work. I don't know why, but that's what zuluman says (according to him, the kernel has a modem signature check and it wont work if the modem was modified).
Gonzakpo said:
Ariza patch only works on older modems (efs v1 modems). So, that wont help.
You said you flashed the zuluman modems but.... did you flash the patched kernels too? You need the patched kernels for the patched modems to work. I don't know why, but that's what zuluman says (according to him, the kernel has a modem signature check and it wont work if the modem was modified).
Click to expand...
Click to collapse
Sorry didn't tried flashing kernal. since I didn't find that file, because wasn't available for download. can you help me find a combination of Modem+kernal??
Thanks
dmarkweb said:
Sorry didn't tried flashing kernal. since I didn't find that file, because wasn't available for download. can you help me find a combination of Modem+kernal??
Thanks
Click to expand...
Click to collapse
Here are all the patched modems and kernels made by zuluman.
https://drive.google.com/folderview...&usp=sharing&tid=0B6MIUd7HJudAbU5YaGkzOUowMG8
In my opinion you should flash the latest official firmware and download the appropiate modem and kernel from that google drive.
You can download the latest official firmware from the general section of this forum.
Good luck.
Remember to always have an efs backup!
Great thanks!
Gonzakpo said:
Here are all the patched modems and kernels made by zuluman.
https://drive.google.com/folderview...&usp=sharing&tid=0B6MIUd7HJudAbU5YaGkzOUowMG8
In my opinion you should flash the latest official firmware and download the appropiate modem and kernel from that google drive.
You can download the latest official firmware from the general section of this forum.
Good luck.
Remember to always have an efs backup!
Click to expand...
Click to collapse
Flashing the Modem + Kernal after rooting the Phone works for me. I have flashed it using CWM.
Thanks once again.
the same problem with signal
hello,
i've the same problems with my s3. i flashed it OTA to Android 4.3
After this i had no signal. ...
When i found this thread i was so happy. BUT!!!
i downloaded all the modem and kernel files from the google drive and wanted to flash them (Patched_XXUGMK6_xxx.zip) with cwm recovery (latest version).
whenever i want to do this, i get the following message and the update aborts: "E:Can't copy META-INF/com/google/android/update-binary"
what can i do? Can i flash them with odin, too? Or does anybody have another idea?
here are some Infos about my Phone:
Android-Version: 4.3
Baseband: I9300XXUGMK6
Kernel: 3.0.31-2191747
[email protected] #1
Tue Nov 26 16:57:12 KST 2013
Build: JSS15J.I9300XXUGMK6
hmm...
can nobody help me? ...
sorry for spamming, but i've got a problem without a phone
greetz,
Carpe.
You said your imei & serial is ok but you cannot register to network. Have you paid your bills?
But if it's corrupted serial number.
Try this guide.
thx for your answer.
Payed my bills? ... uuuuuups!
back to topic: i've flashed my phone back to 4.1.2 for the moment. Network seems to work. ... i'll try some things and give a feedback here. ...
You have to flash an Android 4.3 modem for it to work I think but as your on 4.1.2 now I guess it doesn't matter anymore
Sent from my GT-I9300 using Tapatalk

Not Registered On Network

Before someone tells me, YES I know this is a common problem and YES I know there are lots of thread that talk about this particular subject.
But I think I'm having a different problem.
I had a I9300 unbranded that, for some reason, didn't wanted to update through Kies or OTA. But It could make calls and send txt msgs.
I decided to update it manually using ODIN to the latest official firmware for my phone (XEF - France). I downloaded it from Sammobile. Everything went perfect. Then I wiped everything to just to be safe.
Everything works great. Wifi, Apps, everything. Except making calls or sending txt msgs. It says "not registered on network".
My IMEI is still the same as before (the efs didn't get corrupted I guess).
Anyway, I have a backup from every partition. So I can get back to the previous state. But I want to fix this problem! Does anyone knows what's wrong?
I use to have this:
PDA: I9300XXBLH3
MODEM: I9300XXLH1
CSC: I9300XEFBLH2
Product Code: XEF
Country: France
And I flashed this:
PDA: I9300XXEMG4
MODEM: I9300XXEMG4
CSC: I9300XEFEMG2
Product Code: XEF
Country: France
Did I do something wrong?
You're not having a different problem at all.
You've installed an MG4 modem
Start reading the topics on mg4 modem flashing
RickEphraims said:
You're not having a different problem at all.
You've installed an MG4 modem
Start reading the topics on mg4 modem flashing
Click to expand...
Click to collapse
Would you mind telling me what's exactly the problem I'm having?
I have another i9300 with the same modem and that one works fine!
Your original modem was version one but when you installed the mg4 modem and it changes your EFS to version two.
All sorts of problems can happen now.
Try installing patched Mg4 modem which is found somewhere on here
RickEphraims said:
Your original modem was version one but when you installed the mg4 modem and it changes your EFS to version two.
All sorts of problems can happen now.
Try installing patched Mg4 modem which is found somewhere on here
Click to expand...
Click to collapse
Oh...f*ck!
I used the firmware that was supposed for my phone. Nothing else. Everything stock. I've downloaded it from Sammobile. I can't believe it!
My IME is OK. It's the same I used to have before (when it worked). Are you sure that my EFS is wrong now?
Can't I flash another firmware? I still have my EFS backup.
Which one should I've had flashed of these?
sammobile -> /firmwares/1/?model=GT-I9300&pcode=XEF#firmware
(Sorry I'm not allowed to post links yet)
If you backed up your EFS before the upgrade , you have two choices.
Go back to the original firmware and restore your EFS from backup or
Install patched mg4 modem found here on forums.
Sometimes the modem is not compatible with your region.
You can flash any of the newer modems available here as well.
You just can't install the older modems as your EFS has been changed to EFS version 2
RickEphraims said:
If you backed up your EFS before the upgrade , you have two choices.
Go back to the original firmware and restore your EFS from backup or
Install patched mg4 modem found here on forums.
Sometimes the modem is not compatible with your region.
You can flash any of the newer modems available here as well.
You just can't install the older modems as your EFS has been changed to EFS version 2
Click to expand...
Click to collapse
I've been reading this: http://forum.xda-developers.com/showthread.php?t=2377731
But I still don't undestand something. My IMEI is showing correctly. Shouldn't the phone work anyway regardless of the Modem version?
The problem on the modem version is that once is changed, you can't revert back unless you have an EFS backup. But that doesn't explain why my phone is not working. Am I right? I mean, it should work! I have another i9300 with the same modem and it works...
Are you sure this is my problem? I don't see the logic behind your sugestion.
Flashing a full stock rom, EMG4, including the modem shouldn't break anything. You say your phone had issues before you flashed, did it have any unlock or serial (ariza) patches applied?
If so then they won't work on efs v2 and you'll need to apply the patched modem, or flash an earlier rom (from before EMG4) then restore your efs backup.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
Flashing a full stock rom, EMG4, including the modem shouldn't break anything. You say your phone had issues before you flashed, did it have any unlock or serial (ariza) patches applied?
If so then they won't work on efs v2 and you'll need to apply the patched modem, or flash an earlier rom (from before EMG4) then restore your efs backup.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
My phone was rooted and it didn't update though official methods (I don't know why!). I wanted to leave it to stock. That's why I flashed the stock rom. Thanks god I did my backup. But I want to keep this version, It is official and it's the latest one. It should work!
I've bought the phone on Amazon and it came already rooted to my surprise. I just wanted to return it to stock, Should I start worring?
I actually backed up everything except USER DATA partition. So I can still take a look at the system partition I used to have (I guess...).
My previous issues where related to my phone not wanting to update. But the network connectivity was ok.
If I flashed a new stock rom... can I still have remanents from the previous rom? I also wiped everything. Does that make any sense? (sorry I'm kind of new in all this).
PD: I'm getting scared!!! :crying:
Best go read the efs 'know this stuff' thread in general forum, stickies for more information and links to help.
Sent from my GT-I9300 using Tapatalk
Sounds like something got screwed during the update. Installing the patched mg4 modem should fix it
---------- Post added at 09:01 AM ---------- Previous post was at 09:00 AM ----------
Yes reading the stickies is the best way to get the answers you require. Each problem encountered is slightly different.
RickEphraims said:
Sounds like something got screwed during the update. Installing the patched mg4 modem should fix it
---------- Post added at 09:01 AM ---------- Previous post was at 09:00 AM ----------
Yes reading the stickies is the best way to get the answers you require. Each problem encountered is slightly different.
Click to expand...
Click to collapse
The stick says "Also it would seem, Phones that had this patch ON EFS v1 ROMS will break their IMEI if they upgrade to EFS v2 ROMS."
My IMEI is ok. So I guess I didn't have ariza patch installed. That's a relief.
Anyway... I think I'll wait a bit. Maybe it'll fix itself ( I'm just lying to myself here haha).
Ok more question RickEphraims. Why exactly I need a "patched" modem? I don't want to revert to EFS v1. I just want my phone to work properly. Wouldn't it the same to flash stock MG4 modem again?
I'm no expert but the patched MG4 modem has worked for lots of people. It's still an MG4 modem.
RickEphraims said:
I'm no expert but the patched MG4 modem has worked for lots of people. It's still an MG4 modem.
Click to expand...
Click to collapse
Ok. Thanks.
I will try to flash this version:
And then restore the EFS partition.
Or should I do it the other way (efs first and then flash).
I want to stay official. This is not a phone I will be using so I don't want to leave a root in place or anything like that.
Any advice on this regard?
Flash original firmware and restore EFS.
That should put it back to stock
---------- Post added at 09:53 AM ---------- Previous post was at 09:51 AM ----------
I'm not really qualified to give you advice.
I'm just speaking from experience of what I've done to fix mine after flashing an MG4
I hadn't backed up EFS so it was way harder
Gonzakpo said:
Before someone tells me, YES I know this is a common problem and YES I know there are lots of thread that talk about this particular subject.
But I think I'm having a different problem.
I had a I9300 unbranded that, for some reason, didn't wanted to update through Kies or OTA. But It could make calls and send txt msgs.
I decided to update it manually using ODIN to the latest official firmware for my phone (XEF - France). I downloaded it from Sammobile. Everything went perfect. Then I wiped everything to just to be safe.
Everything works great. Wifi, Apps, everything. Except making calls or sending txt msgs. It says "not registered on network".
My IMEI is still the same as before (the efs didn't get corrupted I guess).
Anyway, I have a backup from every partition. So I can get back to the previous state. But I want to fix this problem! Does anyone knows what's wrong?
I use to have this:
PDA: I9300XXBLH3
MODEM: I9300XXLH1
CSC: I9300XEFBLH2
Product Code: XEF
Country: France
And I flashed this:
PDA: I9300XXEMG4
MODEM: I9300XXEMG4
CSC: I9300XEFEMG2
Product Code: XEF
Country: France
Did I do something wrong?
Click to expand...
Click to collapse
Easiest to try and check COULD BE:
1. Goto setting-> More Networks-> Mobile networks -> Network operators
2. Search for network service provider and select it !
Ok. So I flashed the previous official stock firmware (efs v1). As expected, the IMEI wasn't ok. So I restored my EFS v1 backup. IMEI was ok again. But I still get "no network".
I'm now going back to the original firmware (4.0.4) to see if it starts working again.
The phone is unbranded and apparently from France (XEF). Can I flash any other firmware? France is not my country although firmware 4.0.4 worked alright.
Also, Is there a way to know if Ariza patch was installed before I got the phone?
Check the phone serial number matches the one under the battery. Ariza patch fixes serial number problem on efs v1 only, it didn't fix imei issues.
If it's an i9300 then any firmware will work, you say 'apparently' from France, you should know this information -it is suspicious that do not.
Sent from my GT-I9300 using Tapatalk
News news. I flashed back the original firmware 4.0.4. It didn't work.
To my surprise, the serial number is 00000. THAT is my problem. And I now undestand why it was rooted from the start, probably it had some sort of patch to make it work (like ariza).
Now I'm not sure what to do. Send it to repair (I WILL be expensive in my country) or try the zuluman patched modem. But I guess flashing the patched modem is postponing the inevitable...
What a luck...
There was a post in general forum where a guy edited a file in efs folder to restore serial, you can try that or update to EMG4 rom and apply the patched modem.
You will probably find patched modems get released for newer roms, don't stay on older firmware -they cause SDS.
Edit: the thread about restoring serial I'd actually in q&a, http://forum.xda-developers.com/showthread.php?t=2544109
Sent from my GT-I9300 using Tapatalk

Have network icon, but not registered, have IMEI

I haved rooted stock rom. But i just unrooted and put same unrooted stock rom with mobile odin. Tried factory restart and cache clear.
Phone boots normaly and show network signal, but can't call or recive calls. Say "not registered". I tried to manualy choose operater but nothing.
My IMEI number is original but serial number is 000000.. When call myself from another phone it is not out service but S3 not show call.
Model GT-I9300
Android version 4.1.2
Baseband I9300XXELLA
What I can do? Update firmware?
I have backup of EFS.
webmar said:
I haved rooted stock rom. But i just unrooted and put same unrooted stock rom with mobile odin. Tried factory restart and cache clear.
Phone boots normaly and show network signal, but can't call or recive calls. Say "not registered". I tried to manualy choose operater but nothing.
My IMEI number is original but serial number is 000000.. When call myself from another phone it is not out service but S3 not show call.
Model GT-I9300
Android version 4.1.2
Baseband I9300XXELLA
What I can do? Update firmware?
I have backup of EFS.
Click to expand...
Click to collapse
First of all try unbackup EFS(in G-play there are some tools,i prefer K-Tool).If there is more issues try custom ROM with patched modem and patched kernel. If you prefer read this: post 1441 : http://forum.xda-developers.com/showthread.php?p=48578725#post48578725
west421 said:
First of all try unbackup EFS(in G-play there are some tools,i prefer K-Tool).If there is more issues try custom ROM with patched modem and patched kernel. If you prefer read this: post 1441 : http://forum.xda-developers.com/showthread.php?p=48578725#post48578725
Click to expand...
Click to collapse
I have stock rom. Can I restore efs folder with same method that keep unrooted phone?
I dont now what is problem, I used identicaly rom only unrooted.
webmar said:
I have stock rom. Can I restore efs folder with same method that keep unrooted phone?
I dont now what is problem, I used identicaly rom only unrooted.
Click to expand...
Click to collapse
OK it is so complicated to explane but read this tread: http://forum.xda-developers.com/showthread.php?t=2393289
west421 said:
OK it is so complicated to explane but read this tread: http://forum.xda-developers.com/showthread.php?t=2393289
Click to expand...
Click to collapse
I readed that and it is not like my problem. I have original IMEI. Does official kies update help?
webmar said:
I readed that and it is not like my problem. I have original IMEI. Does official kies update help?
Click to expand...
Click to collapse
Try then this patch it work for broken SN. http://forum.xda-developers.com/showthread.php?t=1918601
west421 said:
Try then this patch it work for broken SN. http://forum.xda-developers.com/showthread.php?t=1918601
Click to expand...
Click to collapse
Thanks, but this patch I must use every time I update phone. I haved rooted phone, but I want normal, unrooted phone to use updates.
Does anybody alse now how to fix? Maybe modem or update?
Does flashing new version of stock rom will help? Is efs backup just for IMEI problems or can help with s/n 0000?
Any help?
why don't you try to just update your firmware to 4.3 (choose 4.3 stock roms) to quickly fix those issues.
BennyZars said:
why don't you try to just update your firmware to 4.3 (choose 4.3 stock roms) to quickly fix those issues.
Click to expand...
Click to collapse
I dont have official 4.3 for my country. Maybe same MG4 firmware?
Just root your s3 and then dpwnload XXEMG4 modem for s3 and apply that modem from recovery mode..it will be fixed..
Sent from my GT-I9300 using xda app-developers app
[email protected] said:
Just root your s3 and then dpwnload XXEMG4 modem for s3 and apply that modem from recovery mode..it will be fixed..
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
But he wants to receive ota. Which I dun understand lol. Custom roms are btr
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you
JellyYogurt said:
But he wants to receive ota. Which I dun understand lol. Custom roms are btr
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you
Click to expand...
Click to collapse
Yes, I want stock unrooted rom that works and update. I used a lot custom roms on another phone, my old htc
webmar said:
Yes, I want stock unrooted rom that works and update. I used a lot custom roms on another phone, my old htc
Click to expand...
Click to collapse
Root ur fone. Flash mg4 modem. Unroot. I think it will work.
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you
I rooted phone again. Maybe help to flash stock MG4 firmware not just modem?
nevermind
BennyZars said:
nevermind
Click to expand...
Click to collapse
Yes, I know that I will dwnload this version for my operater
PDA: I9300XXEMG4
CSC: I9300OXFEMG2
MODEM: I9300XXEMG4
I hope that will help...
webmar said:
Yes, I know that I will dwnload this version for my operater
PDA: I9300XXEMG4
CSC: I9300OXFEMG2
MODEM: I9300XXEMG4
I hope that will help...
Click to expand...
Click to collapse
oh sorry. i edited my first post which is this:
"""
First you need to find the right rom for you
go to sammobile.com (register first in able for you to download stock roms) click firmwares, choose your phone gt19300 and your country. It will display the list of stock roms. choose the rom that you like and then check the modem version the last three figures should be MG4 (for 4.1.2)
if you already have the rom then follow this guide on how to flash with odin:
http://forum.xda-developers.com/show....php?t=1671969""
and i changed it to "nevermind" because i don't know how to delete messages and you already know how to do it because you already flashing custom roms before.
BennyZars said:
oh sorry. i edited my first post which is this:
"""
First you need to find the right rom for you
go to sammobile.com (register first in able for you to download stock roms) click firmwares, choose your phone gt19300 and your country. It will display the list of stock roms. choose the rom that you like and then check the modem version the last three figures should be MG4 (for 4.1.2)
if you already have the rom then follow this guide on how to flash with odin:
http://forum.xda-developers.com/show....php?t=1671969""
and i changed it to "nevermind" because i don't know how to delete messages and you already know how to do it because you already flashing custom roms before.
Click to expand...
Click to collapse
I know how to flash, I used mobile Odin because haved problem with usb port.

[SOLVED] Selected network unavailable

Hi,
I've encountered a problem today. By mistake i have restarted my phone after the wipe, and soft bricked my phone. Then I tried to flash to stock with odin and after a few tries managed to do it But the problem is, after the flash i've got a "selected network unavailable" notification. Tried many things, different stock firmwares, reinstalled many times, but to no luck. After that i've installed aospa and tried to restore my efs backup, but that didn't help either. My imei is intact and in download mode my model is shown too.. What can I try doing to make it work? I can provide any information you ask.. My model is I9300 International. Baseband version in "about phone" tab is: I9300XXEMG4, the stock rom i've installed is as shown in *#1234#: PDA: I9300XXEMG4 CSC: I9300OXXEMG3 MODEM: I9300XXEMG4
Go read the sticky thread on efs in general forum.
If your efs backup was made when your firmware was older than EMG4 then you need to downgrade to the old firmware before you restore it, as efs format changed at EMG4.
Both the imei and serial numbers are required to obtain network.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
Go read the sticky thread on efs in general forum.
If your efs backup was made when your firmware was older than EMG4 then you need to downgrade to the old firmware before you restore it, as efs format changed at EMG4.
Both the imei and serial numbers are required to obtain network.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
I have both imei and serial correct, but how do I check which baseband I made the efs backup on? Because I don't remember..
Your serial and imei is ok.
So I think you should flash a patched modem matches with your firmware
Sent from my GT-N7100 using XDA Free mobile app
husokal said:
Your serial and imei is ok.
So I think you should flash a patched modem matches with your firmware
Sent from my GT-N7100 using XDA Free mobile app
Click to expand...
Click to collapse
You have just saved my life. Indeed flashing patched modem matching my firmware (UGNA8) after flashing Boeffla-Kernel on stock helped regain my network Connection. May it be a remainder of how easily you can mess up your phone
So officially, problem solved.
Masteq said:
You have just saved my life. Indeed flashing patched modem matching my firmware (UGNA8) after flashing Boeffla-Kernel on stock helped regain my network Connection. May it be a remainder of how easily you can mess up your phone
So officially, problem solved.
Click to expand...
Click to collapse
Hello ,
I have the same problem on a SM-N7505 (Note 3 LTE Neo ) and i don't know what's a patched modem is
Do you mind explaining or sharing a link where i could find the needed rom
Many thanks

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