So, I decided to test custom roms... - Galaxy S III Q&A, Help & Troubleshooting

I want to test custom roms for my galaxy s3 which has the latest version of Android 4.1.2 which happens to be xxemg4 if I recall correctly with xxemg3 modem since it is greek version. My question is: can I simply flash a rom that is the same android version as mine (4.1.2)?
Also , when I get to flash a rom, apart from my apps, cache, and dalvik cache is anything else wiped?
Sent from my new galaxy s3 (Oh yeaaah)

Mokiwipeout said:
I want to test custom roms for my galaxy s3 which has the latest version of Android 4.1.2 which happens to be xxemg4 if I recall correctly with xxemg3 modem since it is greek version. My question is: can I simply flash a rom that is the same android version as mine (4.1.2)?
Also , when I get to flash a rom, apart from my apps, cache, and dalvik cache is anything else wiped?
Sent from my new galaxy s3 (Oh yeaaah)
Click to expand...
Click to collapse
Read all
http://forum.xda-developers.com/showthread.php?t=2148708

I think u lost me... What I am asking is if for example I want to use a rom which in the title has the firmware xxemc2 while I have xxemg4 which are both android 4.1.2 is there any problem? Also, I couldn't find any answer to the second question
Sent from my new galaxy s3 (Oh yeaaah)

Mokiwipeout said:
I think u lost me... What I am asking is if for example I want to use a rom which in the title has the firmware xxemc2 while I have xxemg4 which are both android 4.1.2 is there any problem? Also, I couldn't find any answer to the second question
Sent from my new galaxy s3 (Oh yeaaah)
Click to expand...
Click to collapse
There is no problem.
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you

Thanks man, could you tell me what else apart from data, cache and dalvik cache is wiped when installing roms?
Sent from my new galaxy s3 (Oh yeaaah)

Mokiwipeout said:
Thanks man, could you tell me what else apart from data, cache and dalvik cache is wiped when installing roms?
Sent from my new galaxy s3 (Oh yeaaah)
Click to expand...
Click to collapse
System. Which is ur current rom lol.
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you

Mokiwipeout said:
I think u lost me... What I am asking is if for example I want to use a rom which in the title has the firmware xxemc2 while I have xxemg4 which are both android 4.1.2 is there any problem? Also, I couldn't find any answer to the second question
Sent from my new galaxy s3 (Oh yeaaah)
Click to expand...
Click to collapse
EMC2 is v1 efs, EMG4 is v2. You cannot go back from v2 to v1 without a backup of your efs folder, made before you upgraded.
Flashing EMC2 will result in default imei and no service.

boomboomer said:
EMC2 is v1 efs, EMG4 is v2. You cannot go back from v2 to v1 without a backup of your efs folder, made before you upgraded.
Flashing EMC2 will result in default imei and no service.
Click to expand...
Click to collapse
His is mg3. And efs is only upgraded when u go to 4.3
Edit: He is right. MG4 does upgrade ur efs.
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Give a thank if I helped you

Related

Lost IMEI on test firmware I9300XXUFME7_I9300OXAFME7_OXA

Does ne1 know why i keep losing my IMEI everytime i flash the I9300XXUFME7_I9300OXAFME7_OXA rom. i've used this test firmware before and everything was ok and then i went to an official rom. But when i reflashed this rom, I keep getting 004999010640000 / 01 on my IMEI.
Follow link to sticky roll-up in my signature. Read the imei / efs thread
Sent from my GT-I9300 using Tapatalk 4
I have the exact problem, and am stuck with omega 4.1.2 for weeks now !
Sent from my GT-I9300 using xda premium
See above
Sent from my GT-I9300 using Tapatalk 4
okizen said:
Does ne1 know why i keep losing my IMEI everytime i flash the I9300XXUFME7_I9300OXAFME7_OXA rom. i've used this test firmware before and everything was ok and then i went to an official rom. But when i reflashed this rom, I keep getting 004999010640000 / 01 on my IMEI.
Click to expand...
Click to collapse
Asseel said:
I have the exact problem, and am stuck with omega 4.1.2 for weeks now !
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
This is from the Omega thread OP..
1. Make sure to make and keep in a safe place an efs backup - nadroid backup - titanium backup - etc, in case you ever need to restore!
2. With the new firmware from Samsung for the S3 they have changed some security code that will disable the use of older modems, the new update changes the EFS partition which makes it impossible for an older modem being use without upsetting your IMEI (No Phone Signal), please make sure you do have a backup of your EFS in a safe place before you flash to the latest Omega ROM.
This is what Samsung has done, and it seems that its being done to all the new Modems on all the high end devices.
More info
3. Flash with No Full Wipe only from v43.x and previous Omega 4.1.2 versions - if
Click to expand...
Click to collapse

[Q] Downgrading Galaxy SIII (GT-I9300) from 4.3 to 4.1.2

Dear friends I recently installed I9300XXUGMJ9_I9300VFGGMJ5_VDI_2.tar (Android 4.3) on my Galaxy S III International version. But as we know the firmware is full of messy bugs I just installed the old 4.1.2 firmware from Samsmobile and kies too.. But the problem is that I can't access my network. There seems to be only emergency calls... Can you guys get me this problem fixed? Is there any way to downgrade my phone to old 4.1.2 Jelly Bean. I desperately require some help.
Please use search question asked daily .
Please read faqs and guides .
Please post in the correct forum .
Basics read first.
http://forum.xda-developers.com/showthread.php?t=2344125
Critical you read the first two posts .
Install neatrom 5.4 working great
Sent from my GT-I9300 using xda premium
ozzyblack said:
Install neatrom 5.4 working great
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Provide the link please. Is it 4.1.2?
yes ..u have to flash modem
featherknox said:
Dear friends I recently installed I9300XXUGMJ9_I9300VFGGMJ5_VDI_2.tar (Android 4.3) on my Galaxy S III International version. But as we know the firmware is full of messy bugs I just installed the old 4.1.2 firmware from Samsmobile and kies too.. But the problem is that I can't access my network. There seems to be only emergency calls... Can you guys get me this problem fixed? Is there any way to downgrade my phone to old 4.1.2 Jelly Bean. I desperately require some help.
Click to expand...
Click to collapse
flash this modem xxemj4.....google it.....or u can try imperium 4.1.2 rom
try Gorgoid 2.7a. MJ2 firmware with MJ1 modem. i flashed over CM11 and all good.
http://forum.xda-developers.com/showthread.php?t=2172299
Thanks
ozzyblack said:
Install neatrom 5.4 working great
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Thanks dear, I have installed NeatRom Full.
The lag in the lockscreen has gone away so far... Though there the UI is still the same...
It feels as if no change has been made at all....
Looking For 4.1.2
In fact I was looking for a solution to switch back to Custom 4.1.2 as it was the perfect ROM so far for me.
I have downloaded it from Sammobile but after Installing it via Odin I am unable to see any network and the Phone's IMIE is changed. I would greatly appreciate anyone to come up with solution for that....
Thanks everyone for being so kind...
featherknox said:
In fact I was looking for a solution to switch back to Custom 4.1.2 as it was the perfect ROM so far for me.
I have downloaded it from Sammobile but after Installing it via Odin I am unable to see any network and the Phone's IMIE is changed. I would greatly appreciate anyone to come up with solution for that....
Thanks everyone for being so kind...
Click to expand...
Click to collapse
read JJEgan's response.
DO IT!
I had the same problem, and all I did was to get to cm 10.2 before moving back to 4.1.2 stock
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Was it helpful?
thunderror said:
I had the same problem, and all I did was to get to cm 10.2 before moving back to 4.1.2 stock
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
I also tried to install the CM via its official Windows Application. When it completed there was no network again... Can you provide me the link of the ROM that you installed? Is it Zipaligned?
@featherknox
Correct me if i'm wrong but maybe u have a problem with efs partition from downgrading unto lower version of android..
here are some post that some of the users have solved their problem..
http://forum.xda-developers.com/showpost.php?p=47524551&postcount=1148
let us know if it works to you..
Thanks
Warrenforfree said:
@featherknox
Correct me if i'm wrong but maybe u have a problem with efs partition from downgrading unto lower version of android..
here are some post that some of the users have solved their problem..
http://forum.xda-developers.com/showpost.php?p=47524551&postcount=1148
let us know if it works to you..
Click to expand...
Click to collapse
Thank you very much.. I am going to give it a try.... Hope it works...
Problem Solved
Dear guys thanks for your time and the help...
With suggestion of a good mate, I am finally able to go back to 4.1.2.....
All I had to do was just Install the Patched Modem MG4
<b> https://www.dropbox.com/s/geispctijpxqjms/Patched_Modem_I9300XXEMG4.zip </b>
Wow,, I am so happy to get rid of that stupid 4.3
featherknox said:
Dear friends I recently installed I9300XXUGMJ9_I9300VFGGMJ5_VDI_2.tar (Android 4.3) on my Galaxy S III International version. But as we know the firmware is full of messy bugs I just installed the old 4.1.2 firmware from Samsmobile and kies too.. But the problem is that I can't access my network. There seems to be only emergency calls... Can you guys get me this problem fixed? Is there any way to downgrade my phone to old 4.1.2 Jelly Bean. I desperately require some help.
Click to expand...
Click to collapse
Check your IMEI number, wheather it was changed to 0049XXXX - I have had the same problem. I downloaded from Sammobile firmware v4.3 and flash your phone with odin. My IMEI and network connection was restored. Looks like Samsung does not like us to downgrade the firmwares.
Problem Solved
Peter1234 said:
Check your IMEI number, wheather it was changed to 0049XXXX - I have had the same problem. I downloaded from Sammobile firmware v4.3 and flash your phone with odin. My IMEI and network connection was restored. Looks like Samsung does not like us to downgrade the firmwares.
Click to expand...
Click to collapse
I have downgraded my Phone. Check the solution into my New Thread!!!!!
http://forum.xda-developers.com/showthread.php?p=47555014#post47555014
Peter1234 said:
Check your IMEI number, wheather it was changed to 0049XXXX - I have had the same problem. I downloaded from Sammobile firmware v4.3 and flash your phone with odin. My IMEI and network connection was restored. Looks like Samsung does not like us to downgrade the firmwares.
Click to expand...
Click to collapse
Its not a problem if users care to read the faqs and guides first .
Solution.....
Hello guys....
I am very thankful to the xda forum and all the members who helped me to get through a serious problem..
Recently I installed 4.3 Leaked version on my GT-I9300 and the ROM proved to be worst ROM of life. So I decided to go back to 4.1.2.
I installed the custom ROM via Odin but I confronted a serious issue, when I was finished the installation I found that there was no network at all... Samsung's official told me that it is impossible to reverse the Android version...
I had no clue what to do. I flashed many ROMs but no solution at all. My IMIE was also kinda jumbled..
Many guys said it is EFS issue... But it is not EFS issue...
It is all because of different Modem issue.. all you need to do is just install a clean custom ROM from http://www.sammobile.com/firmwares/2/ and Install the patched modem... you are done..
So here is the solution:
1. Download your desired CUSTOM ROM for your Country from Sammobile...
Link http://www.sammobile.com/firmwares/2/
2. Install the ROM via Odin
3. Root it and Install your favorite recovery.
4. Install the Patched MG4 Modem Zip in Recovery Mode. Link https://www.dropbox.com/s/geispctijp...9300XXEMG4.zip
You are done....
This problem is all about MODEM version, so I don't think if EFS tricks are involved here.....
Finally credits go to all the XDA Members who put their heart and soul to present all the required guidance for me to be able to downgrade to lower Android Version.. I have only compiled the whole stuff into a single thread....
Thanks,,,
Plenty of solutions....
JJEgan said:
Its not a problem if users care to read the faqs and guides first .
Click to expand...
Click to collapse
Dear sir,
Actually the problem is not finding the solutions but finding the right solution.
Worth members of XDA Forum post a lot of solutions for a particular problem and thus newbies like me get even more confused... So it definitely takes some time for us to come to a point when we are able to get the desired results.
Sometimes, we are not able to clarify our queries.....
As in my problem only a Modem was required while I was looking for EFS solutions!
After Flashing the MG4 modem my battery life has become worst. I don't know if it is because of the Modem.. but whenever my phone is on airplane mode then the battery remains at the same percentage but while on network my battery keeps on draining without even texting or calling
Sent from my GT-I9300 using XDA Premium 4 mobile app

[Q] Please help, I can't find clear answer

Hello
My friend bought GS3 months ago in Arabic country with ICS 4.0.4 installed. When I saw the box, I found that the GS3 is a grey market product. It has Region Lock label written in Russian language on the box and the ROM is pre-rooted CWM Custom ROM
Now, Kies dose not upgrade this version and he wishes to have Arabic stock ROM 4.3 if possible. What are the safest steps to do?
- If I download and flash Arabic stock ROM, will I loose modem connectivity?
- Do I need to backup and restore EFS data if I flash stock ROM?
- Do I need root to restore EFS data/modem driver after flashing STOCK ROM?
- Should I flash custom ROM instead of Stock ROM?
I want a safe way, I don't wish to cause network/EFS loss to the device?
I read a lot but came to no conclusion.. please help
Hello
My friend bought GS3 months ago in Arabic country with ICS 4.0.4 installed. When I saw the box, I found that the GS3 is a grey market product. It has Region Lock label written in Russian language on the box and the ROM is pre-rooted CWM Custom ROM
Now, Kies dose not upgrade this version and he wishes to have Arabic stock ROM 4.3 if possible. What are the safest steps to do?
- If I download and flash Arabic stock ROM, will I loose modem connectivity?
- Do I need to backup and restore EFS data if I flash stock ROM?
- Do I need root to restore EFS data/modem driver after flashing STOCK ROM?
- Should I flash custom ROM instead of Stock ROM?
I want a safe way, I don't wish to cause network/EFS loss to the device?
I read a lot but came to no conclusion.. please help
Click to expand...
Click to collapse
Kies shld have an emergency firmware feature. Try using it.
1. U will not. Just dun downgrade
2. If u aren't gg back to 4.1.2, dun bother. But recommended.
3. Yes.
4. Ur choice. If u wan bugless rom, go for stock rom. Many also say stock is one of the best.
Sent from my GT-I9300 using xda app-developers app
JellyYogurt said:
Kies shld have an emergency firmware feature. Try using it.
1. U will not. Just dun downgrade
2. If u aren't gg back to 4.1.2, dun bother. But recommended.
3. Yes.
4. Ur choice. If u wan bugless rom, go for stock rom. Many also say stock is one of the best.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Thanks for reply. I read that some people lost the IMEI when they flashed STOCK ROM 4.3? as I said the device came from Russian market and I want to flash Middle east ROM?
Which JB version is save to flash and won't loose the IMEI?
xIndex said:
Thanks for reply. I read that some people lost the IMEI when they flashed STOCK ROM 4.3? as I said the device came from Russian market and I want to flash Middle east ROM?
Which JB version is save to flash and won't loose the IMEI?
Click to expand...
Click to collapse
If u are rly just tat scared to lose ur imei. Go kies and do the firmware recovery. U will get stock rom automatically.
Sent from my GT-I9300 using xda app-developers app
Depends on the phone history on what will happen on upgrade to 4.3, sim lock may return or imei lost due to patched efs folder. No way to know until you get flash, so backup efs now.
4.1.2 EMG4 is when efs format changed, anything before this shouldn't cause too many issues.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
Depends on the phone history on what will happen on upgrade to 4.3, sim lock may return or imei lost due to patched efs folder. No way to know until you get flash, so backup efs now.
4.1.2 EMG4 is when efs format changed, anything before this shouldn't cause too many issues.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
That's what I am worried about. To loose IMEI or get the region lock back. The phone model is GT-I9300RWDEUR. Can I find stock rom for it with no region lock?
so confusing !!
JellyYogurt said:
If u are rly just tat scared to lose ur imei. Go kies and do the firmware recovery. U will get stock rom automatically.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
I am worried I will get back the region lock crap if I do firmware recovery!!
The model is GT-I9300RWDEUR European SIM model
The ICS 4.0.0 is causing to many problems and device hangs all the time
Actually it is from Greece. I was confused with the language (Ελβετία= Swiss)
boomboomer said:
Depends on the phone history on what will happen on upgrade to 4.3, sim lock may return or imei lost due to patched efs folder. No way to know until you get flash, so backup efs now.
4.1.2 EMG4 is when efs format changed, anything before this shouldn't cause too many issues.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
So if I upgrade to 4.1.2 before EMG4 , I won't have EFS/IMEI problem?
All I have to do to flash midle east ROM and then to find the Modem driver and install it through odin?
xIndex said:
So if I upgrade to 4.1.2 before EMG4 , I won't have EFS/IMEI problem?
All I have to do to flash midle east ROM and then to find the Modem driver and install it through odin?
Click to expand...
Click to collapse
Modem may be a CWM zip not a tar .
JJEgan said:
Modem may be a CWM zip not a tar .
Click to expand...
Click to collapse
What is the difference? Odin only flashes tar?
I need to find modem driver in tar format first?
Odin flashes tar
CWM and other custom recovery flashes zips .
Suggest you read the basic faqs and guides first .
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
Thanks for the info.
I found UAE ROM that uses the same Greece Modem number. Is it safe to flash it?
http://www.sammobile.com/firmwares/3/?download=25063
http://www.sammobile.com/firmwares/3/?download=23767

[Q] I9300XXELLA downgrade and other questions

Hi everyone,
Before I flash a custom rom, I would like to know the answer to some questions I have.
This is the situation: I have an international galaxy s3, I9300XXELLA, with stock rom and android 4.1.2 and I'm interested in flashing the latest cyanogenmod 11 milestone.
I would make a nandroid backup first, so will I be able to just flash my nandroid of version 4.1.2 and downgrade from android version 4.4.2 to 4.1.2?
Also, if I make a nandroid of cyanogenmod 11, will I be able to just switch between the two roms like it's nothing?
Sorry if my questions are noob, but I've tried to downgrade before and I got stuck in a bootloop, I don't want to get this problem again..
And yes, I've searched google.
Any help is greatly appreciated!
Hi everyone,
Before I flash a custom rom, I would like to know the answer to some questions I have.
This is the situation: I have an international galaxy s3, I9300XXELLA, with stock rom and android 4.1.2 and I'm interested in flashing the latest cyanogenmod 11 milestone.
I would make a nandroid backup first, so will I be able to just flash my nandroid of version 4.1.2 and downgrade from android version 4.4.2 to 4.1.2?
Also, if I make a nandroid of cyanogenmod 11, will I be able to just switch between the two roms like it's nothing?
Sorry if my questions are noob, but I've tried to downgrade before and I got stuck in a bootloop, I don't want to get this problem again..
And yes, I've searched google.
Any help is greatly appreciated!
Click to expand...
Click to collapse
U cant switch like its nth. Whenever u go from cm11 to stock 4.1.2, u have to restore ur efs v1. Wat modem are u using atm?
Sent from my SM-N9005 using xda app-developers app
JellyYogurt said:
U cant switch like its nth. Whenever u go from cm11 to stock 4.1.2, u have to restore ur efs v1. Wat modem are u using atm?
Sent from my SM-N9005 using xda app-developers app
Click to expand...
Click to collapse
I'm sorry isn't my modem the XXELLA I already gave?
And how do I restore my efs v1 then, and what is it?
Thanks
Sent from my GT-I9300 using XDA Premium 4 mobile app
The above post is absolutely wrong. Custom ROMS including CM never include a modem in the RO
Wrong wrong wrong custom roms may and indeed do include a modem or even a choice of modems . Fairly obvious from reading rom descriptions .Modem: BUUGMJ3 Modem: XXUGMK6
Modem:
- XXEMG4
- BUUGMJ3
- XXUGMJ9
- XXUGMK6
- DDUGMK1
Vinceee said:
I'm sorry isn't my modem the XXELLA I already gave?
And how do I restore my efs v1 then, and what is it?
Thanks
Click to expand...
Click to collapse
Also do not flash any roms untill you know what efs is and how to back it up! not doing so may lead to a unusable phone read this >> http://forum.xda-developers.com/showthread.php?t=2393289 << and post any questions regarding efs in the thread.
JJEgan said:
The above post is absolutely wrong. Custom ROMS including CM never include a modem in the RO
Wrong wrong wrong custom roms may and indeed do include a modem or even a choice of modems . Fairly obvious from reading rom descriptions .Modem: BUUGMJ3 Modem: XXUGMK6
Modem:
- XXEMG4
- BUUGMJ3
- XXUGMJ9
- XXUGMK6
- DDUGMK1
Click to expand...
Click to collapse
Extract CM ROM zip and see for yourself if it includes a modem or not.
Sent from my GT-I9300 using XDA Premium 4 mobile app
tallman43 said:
Also do not flash any roms untill you know what efs is and how to back it up! not doing so may lead to a unusable phone read this >> http://forum.xda-developers.com/showthread.php?t=2393289 << and post any questions regarding efs in the thread.
Click to expand...
Click to collapse
Okay I've read the topic about efs and IMEI, but I'm not sure if I understand everything correctly
Please correct me if I'm wrong and feel free to give extra information, this is what I think I understand:
Once I flash a rom that was made after the efs format change, I can't go back to a previous version of my modem on that rom.
If I make an efs backup with CWM, I CAN restore it only if I go back to my stock android 4.1.2 (?)
But do I need to restore my efs backup on my new rom? I thought that wasn't necessary..
And another thing, I already succesfully installed a PA version AFTER the format change (I think android 4.3), and was able to go back to stock 4.1.2.. Got a bootloop but was able to fix that in recovery. The stock rom still works, never had problems with the modem what so ever, the only thing I did was restore my nandroid backup of 4.1.2, fixed the bootloop in recovery, and got a working, factory resetted 4.1.2...
So if I flash CM11, will I be able to go back to stock if I use a nandroid (and efs) backup?
Can someone give me a step by step tutorial please? (I just want to know what I have to do)
Vinceee said:
I'm sorry isn't my modem the XXELLA I already gave?
And how do I restore my efs v1 then, and what is it?
Thanks
Click to expand...
Click to collapse
No. Modems have a number at the last. Like MG4. Etc
Sent from my GT-I9300 using xda app-developers app
JellyYogurt said:
No. Modems have a number at the last. Like MG4. Etc
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Then please let me know where to find it, because I can't seem to find a code that ends in a number at 'about phone'
Vinceee said:
Then please let me know where to find it, because I can't seem to find a code that ends in a number at 'about phone'
Click to expand...
Click to collapse
Baseband version.
Sent from my GT-I9300 using xda app-developers app
---------- Post added at 07:56 AM ---------- Previous post was at 07:54 AM ----------
Btw. U can switch nandroids between stock and cm 11. But rmb to factory reset then restore nandroid.
Sent from my GT-I9300 using xda app-developers app
JellyYogurt said:
Baseband version.
Sent from my GT-I9300 using xda app-developers app
---------- Post added at 07:56 AM ---------- Previous post was at 07:54 AM ----------
Btw. U can switch nandroids between stock and cm 11. But rmb to factory reset then restore nandroid.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
It says I9300XXELLA like I told you before..
I can take a screenshot if you don't believe me
Vinceee said:
It says I9300XXELLA like I told you before..
I can take a screenshot if you don't believe me
Click to expand...
Click to collapse
Okay. But like I said. U can switch between nandroids. Just factory reset before each restore.
Sent from my GT-I9300 using xda app-developers app
JellyYogurt said:
Okay. But like I said. U can switch between nandroids. Just factory reset before each restore.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Thanks, so I don't have to worry about the modems or the efs? Even though my build version is from before MG2?
So for switching to CM and back to stock, I should do:
- make a titanium backup of apps
- make nandroid backup of 4.1.2
- factory reset/wipe cache/wipe dalvik cache
- flash CM
- factory reset/wipe cache/wipe dalvik cache
- (test CM rom, put on some apps ect.)
- make nandroid backup of 4.4.2
- factory reset/wipe cache/wipe dalvik cache
- flash nandroid of 4.1.2
- factory reset/wipe cache/wipe dalvik cache
- reboot
- restore apps with titanium backup
Will this work?
Thanks everyone, any help is welcome
Vinceee said:
Thanks, so I don't have to worry about the modems or the efs? Even though my build version is from before MG2?
So for switching to CM and back to stock, I should do:
- make a titanium backup of apps
- make nandroid backup of 4.1.2
- factory reset/wipe cache/wipe dalvik cache
- flash CM
- factory reset/wipe cache/wipe dalvik cache
- (test CM rom, put on some apps ect.)
- make nandroid backup of 4.4.2
- factory reset/wipe cache/wipe dalvik cache
- flash nandroid of 4.1.2
- factory reset/wipe cache/wipe dalvik cache
- reboot
- restore apps with titanium backup
Will this work?
Thanks everyone, any help is welcome
Click to expand...
Click to collapse
Restore BEFORE. No nid for AFTER.
Sent from my GT-I9300 using xda app-developers app
Yes you do have to worry about efs if you do not backup your efs you may have problems maybe not today or in a week or month but if you ever corrupt your efs by flashing roms and you do not have a backup you will have big problems!....First rule when flashing roms backup efs!
Second rule save a backup not on your phone .
JellyYogurt said:
Restore BEFORE. No nid for AFTER.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
So can you give me the right steps please? You can just edit my post in a quote or something, thanks
And like that I can perfectly switch between roms, right? No problems with efs (if it doesn't get corrupted by accident)?
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
- make nandroid backup of 4.1.2
- factory reset/wipe cache/wipe dalvik cache
- flash CM
- (test CM rom, put on some apps ect.)
- make nandroid backup of 4.4.2
- factory reset/wipe cache/wipe dalvik cache
- flash nandroid of 4.1.2
- reboot
Dun nid to back up the apps since nandroids do back up them alr. Save the nandroids to ext sd card. Recommend 16 or 32 gb sd card for this. And backup efs to ext sd card too. IMPORTANT TO BACKUP EFS
Sent from my SM-N9005 using xda app-developers app

noob in desperate need of help (s3 with no network signal)

hi guys
today i've flashed this ROM on a SAMSUNG S GALAXY 3
http://forum.xda-developers.com/galaxy-s3/development/rom-smartdroid-v1-0-t2602543
Revolutionary S5 V3 - Why buy an S5? [PATCHED V3]
The s3 was alread rooted
all the process of flashing went fine,but when i rebooted BANG no network signal.
in the ROM thread ppls reported to flash this particular modem to bring back signal
but it did not work
please help me, this phone is property of my boss
unfortunately I only run a Nandroid backup before flash
which data can serve to help me?
Before the flash the phone was equipped with Android 4.2
pls help me
ps if i run the *#1234# my csc is i93000xafme7
Sefiro said:
hi guys
today i've flashed this ROM on a SAMSUNG S GALAXY 3
http://forum.xda-developers.com/galaxy-s3/development/rom-smartdroid-v1-0-t2602543
Revolutionary S5 V3 - Why buy an S5? [PATCHED V3]
The s3 was alread rooted
all the process of flashing went fine,but when i rebooted BANG no network signal.
in the ROM thread ppls reported to flash this particular modem to bring back signal
but it did not work
please help me, this phone is property of my boss
unfortunately I only run a Nandroid backup before flash
which data can serve to help me?
Before the flash the phone was equipped with Android 4.2
pls help me
ps if i run the *#1234# my csc is i93000xafme7
Click to expand...
Click to collapse
You Flashed DEVIL KERNEL?
If you did http://forum.xda-developers.com/galaxy-s3/orig-development/kernel-devil2-2-3-2-omni-cm-samsung-t2528624 the first flashers LOSE Their baseband too.
Try to read the thread on how they fixed the problem. Are you running on CM? Dual Boot?
thokzz said:
You Flashed DEVIL KERNEL?
If you did http://forum.xda-developers.com/galaxy-s3/orig-development/kernel-devil2-2-3-2-omni-cm-samsung-t2528624 the first flashers LOSE Their baseband too.
Try to read the thread on how they fixed the problem. Are you running on CM? Dual Boot?
Click to expand...
Click to collapse
no i'm stick to standard base kernel
i can provide the last 7 numbers of my imei also
8282823
now i restored the nandroid backback (4.2)
nothing changed
pls guys help me
the owner of the phone is really mad at me now
i'm so sad
ps yes i'm under phil cm touch rooted
no one can help me=
Sefiro said:
no i'm stick to standard base kernel
i can provide the last 7 numbers of my imei also
8282823
now i restored the nandroid backback (4.2)
nothing changed
pls guys help me
the owner of the phone is really mad at me now
i'm so sad
ps yes i'm under phil cm touch rooted
no one can help me=
Click to expand...
Click to collapse
Bump for me
Flash the full stock rom for your country with Odin then factory reset in recovery. If efs is not read by the stock rom then restore your efs backup.
No backup then you'll have to pay for a repair.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
Flash the full stock rom for your country with Odin then factory reset in recovery. If efs is not read by the stock rom then restore your efs backup.
No backup then you'll have to pay for a repair.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
Tnx for your answer
I live in a very small town so for sure i must search on the web a shop able to repair the s3
Can you suggest my what kind of repair need the phone in this situation?
Like if i find a shop now what i must say to the employer?
Just no network signal or there are a common statement for this problem?
Really tnx for your help
Sefiro said:
hi guys
today i've flashed this ROM on a SAMSUNG S GALAXY 3
http://forum.xda-developers.com/galaxy-s3/development/rom-smartdroid-v1-0-t2602543
Revolutionary S5 V3 - Why buy an S5? [PATCHED V3]
The s3 was alread rooted
all the process of flashing went fine,but when i rebooted BANG no network signal.
in the ROM thread ppls reported to flash this particular modem to bring back signal
but it did not work
please help me, this phone is property of my boss
unfortunately I only run a Nandroid backup before flash
which data can serve to help me?
Before the flash the phone was equipped with Android 4.2
pls help me
ps if i run the *#1234# my csc is i93000xafme7
Click to expand...
Click to collapse
If your IMEI is 0049 or null, try to use a patched MG4 modem first. Revolutionary roms don't have modem in them so that can cause some issues occasionally.
Let me know if it works.
~ RazorMC
Sefiro said:
hi guys
today i've flashed this ROM on a SAMSUNG S GALAXY 3
http://forum.xda-developers.com/galaxy-s3/development/rom-smartdroid-v1-0-t2602543
Revolutionary S5 V3 - Why buy an S5? [PATCHED V3]
The s3 was alread rooted
all the process of flashing went fine,but when i rebooted BANG no network signal.
in the ROM thread ppls reported to flash this particular modem to bring back signal
but it did not work
please help me, this phone is property of my boss
unfortunately I only run a Nandroid backup before flash
which data can serve to help me?
Before the flash the phone was equipped with Android 4.2
pls help me
ps if i run the *#1234# my csc is i93000xafme7
Click to expand...
Click to collapse
Hello There,
I think the problem is the rom itself, i advise you to degrade your phone to its stock rom/orig rom and find a better rom.
RazorMC said:
If your IMEI is 0049 or null, try to use a patched MG4 modem first. Revolutionary roms don't have modem in them so that can cause some issues occasionally.
Let me know if it works.
~ RazorMC
Click to expand...
Click to collapse
Well my IMEI seems to be normal,it is not recommended to post it here?
Ps there is a way to find what was the original ROM of the phone?
Ps the imei shown on the phone is the same of the one shown on the back of the phone
Is this a good thing? Means no corrupted imei?
Sefiro said:
Ps the imei shown on the phone is the same of the one shown on the back of the phone
Is this a good thing? Means no corrupted imei?
Click to expand...
Click to collapse
Indeed
Sefiro said:
Well my IMEI seems to be normal,it is not recommended to post it here?
Ps there is a way to find what was the original ROM of the phone?
Ps the imei shown on the phone is the same of the one shown on the back of the phone
Is this a good thing? Means no corrupted imei?
Click to expand...
Click to collapse
- I would recommend never to post imei anywhere
- If the imei matches then all's ok.
- Stock rom depends on the country. You can search on sammobile and flash with Odin. 4.3 not recommended if you like flashing roms.
~ RazorMC
alecore said:
Indeed
Click to expand...
Click to collapse
What i can do to restore network?
I advise to flash patched modems
You should try 2
Before mg version and after mg version
To check work both efs versions
If you don't know about efs stuff I advice to read imei thread in the sticky. Good luck with flashing modems :good:
husokal said:
I advise to flash patched modems
You should try 2
Before mg version and after mg version
To check work both efs versions
If you don't know about efs stuff I advice to read imei thread in the sticky. Good luck with flashing modems :good:
Click to expand...
Click to collapse
Can you post here a link for patched modems pls?
http://forum.xda-developers.com/attachment.php?attachmentid=2384611&d=1384123364
This is mj. For efs v2
Backup your efs
Btw this is i your roms q&a section!
Q1. Why do i not have Mobile Network after flashing this rom?
Ans. Thats because u need a EFS v2 Modem for 4.3 Roms
Sent from my GT-N7100 using XDA Free mobile app
husokal said:
http://forum.xda-developers.com/attachment.php?attachmentid=2384611&d=1384123364
This is mj. For efs v2
Backup your efs
Btw this is i your roms q&a section!
Q1. Why do i not have Mobile Network after flashing this rom?
Ans. Thats because u need a EFS v2 Modem for 4.3 Roms
Sent from my GT-N7100 using XDA Free mobile app
Click to expand...
Click to collapse
so i must choise one of this patched modem if I understand correctly
https://drive.google.com/folderview...sharing&tid=0B6MIUd7HJudAbU5YaGkzOUowMG8#list
no need of flashing the kernel also?
Give it a chance
husokal said:
Give it a chance
Click to expand...
Click to collapse
YES I DID IT!!!!!
flashed Patched_XXUGMK6_kernel.zip and Patched_XXUGMK6_modem.zip
network signal come back
tnx guys really
Sefiro said:
YES I DID IT!!!!!
flashed Patched_XXUGMK6_kernel.zip and Patched_XXUGMK6_modem.zip
network signal come back
tnx guys really
Click to expand...
Click to collapse
That kernel + that modem has risen up even Lazarus. HAHA.
efevelasquez said:
That kernel + that modem has risen up even Lazarus. HAHA.
Click to expand...
Click to collapse
What means this dude? The two files are too old?
You suggest me two different?

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