Like many, I am extremely disappointed with Samsung's attempt to bring 4.3 to the S3 and am on the verge of switching to CM 10.2 from a stock ROM. The ROM is rooted with a yank555 kernel and philZ recovery.
However, upon reading this forum; http://forum.xda-developers.com/showthread.php?t=2531221 and several others like it, I realised I may or may not run into an EFS or no network issue. I have the stable 10.2 and 4.3 Gapps ready to install via ROM Installer.
Is it only if the android version is downgraded that any form of EFS error could occur? As 10.2 is based off 4.3, I thought it would work fine and flash as it did when I ran stock 4.1.2 but wanted to double check.
Thanks for your time.
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
EFS error any flash of any firmware may give error .
Related
Hello,everyone
I have used i9300 for more than 1 year. I have this no signal problem for more than 1 year,too. Could you help me to solve it? Here are the details:
1. I have bought this phone on internet. I believe it is an European phone with lock. But when i got, it had signal with Samsung official ROM.
2. Then i tried to flash some Samsung official ROMs from forums, i found there was no signal. So i had to go to a store to fix it. The guy in the store used a machine to fix my phone. Maybe he had changed my IMEI. Anyway,after that, the phone is OK to flash Samsung official ROMs with normal signal.
3. When i tried to flash some other custom ROMs, like CM, AOKP, Temasek, no signal.But when i flashed back to Samsung official ROMs,signal was still OK.
One thing more,about a few months ago, i flashed some Temasek and CM ROMs, some of them were OK with signal.But each time i reboot my phone, it would take a long time(range from 3 minutes to 1 hour) to recover the signal.
so,could you help me to find out how to solve it?
many thanks!
Start with the sticky threads in general forum. Usual problem is efs damaged, which can't be fixed but there are some ways to work around with patched modems etc. You'll have to work it out for yourself as there is no easy fix.
Sent from my GT-I9300 using Tapatalk
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
Hi guys,
I have three questions about Pacman ROM 4.3:
- I have noticed the camera's quality is not so good and clear as the stock rom camera.
Is there anything i can do to increase the quality?
-Because i have missed the touchwiz interface can i do something(flash zip or install apk or anything else) to have touchwiz interface?
- Can i downgrade my phone to Android Revolution v29.0 (4.1.2) without lose my imei and sn?
The most important question is the third.
Thank you!
1 See multiple identical posts .
2 No
3.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 saw these posts before writing the question and i tried this method and it worked but only for stock rom 4.1.2. When i flashed the Android Revolution 29.0 i lost the network signal and my imei, i restore it, but the sn was 000000 and then i flashed the patched modem but the imei,baseband and sn were lost...all turned unknown
[Q] "No Servicce" and "Baseband Unknown" after flashing CM 11 on i9300
BACKGROUND:
The plan was to flash Resurrection Remix for S3 and go from stock JB to Lollipop on my GT i9300. However, incessant bootlooping made me change my mind and I decided to settle for CM11. CM11 works like a charm except that I have "No Service" problem and "Baseband Unknown". I did do a Nandroid backup prior to all this.
WHAT HAVE I DONE SO FAR?
I was reading up on this and similar threads show that I must flash a modem. There was a list of modems on another XDA thread but it stated that these will work with stock JB only so no luck there.
How do I get the phone to recept the signal again?
MISC:
ROM: cm-11-20150323-NIGHTLY-i9300
Recovery : twrp-2.8.6.0-i9300
Region : India
littleandroidkid said:
BACKGROUND:
The plan was to flash Resurrection Remix for S3 and go from stock JB to Lollipop on my GT i9300. However, incessant bootlooping made me change my mind and I decided to settle for CM11. CM11 works like a charm except that I have "No Service" problem and "Baseband Unknown". I did do a Nandroid backup prior to all this.
WHAT HAVE I DONE SO FAR?
I was reading up on this and similar threads show that I must flash a modem. There was a list of modems on another XDA thread but it stated that these will work with stock JB only so no luck there.
How do I get the phone to recept the signal again?
MISC:
ROM: cm-11-20150323-NIGHTLY-i9300
Recovery : twrp-2.8.6.0-i9300
Region : bought in Middle East, using in India
Click to expand...
Click to collapse
I´ve had the exact same issue. After not having signal with Blekota Note 4 Lite V4, tried installing CM 11 and now I have no baseband. No solution yet.
Flash full stock firmware for your country then factory reset. If still the same then restore your efs backup.
boomboomer said:
Flash full stock firmware for your country then factory reset. If still the same then restore your efs backup.
Click to expand...
Click to collapse
Solved it. However, WhatsApp no longer works. It doesn't send me an SMS verification after having switched back to stock from CM 11. Thoughts?
Hi.
EDIT: My phone is a GT-I9300 bought in Denmark (So I guess International).
So yesterday I installed this custom rom from Android 4.3 to Unofficial Cyanogenmod 12.1 (Here is the article: http://forum.xda-developers.com/galaxy-s3/development/5-1-x-cyanogenmod-12-1-t3066864). I got it installed with no problems but then I discovered that I had no 3G (data connection). My IMEI and APN was fine and it could recognize my carrier (Telenor Denmark). I tried installing more than 5 different flashed modems but with no luck. So, today I installed the stock Android 4.1.2 official ROM and the 3G was working perfectly again. I then tried installing CM 12.1 again, but the same error occurred. I have no problems making calls and sending text messages, and WIFI works too.
Could someone lead me in the right direction to solving this error?
Thank you in advance.
Andreas B. Ostergaard
If you had official 4.3 in the beginning there is no way you can get a signal or 3g if you go back 4.1.2 except somewhere in the past you restored your old 4.1.2 efs backup. If you have signal in 4.1.2 this means you still have efs v1. Since cm12 doesnt change your efs or modem you may still have network. Your 3g problem may be efs v1. Install official 4.3 first and update your efs to v2 then install a clean cm12 and try again.
thewalekk said:
If you had official 4.3 in the beginning there is no way you can get a signal or 3g if you go back 4.1.2 except somewhere in the past you restored your old 4.1.2 efs backup. If you have signal in 4.1.2 this means you still have efs v1. Since cm12 doesnt change your efs or modem you may still have network. Your 3g problem may be efs v1. Install official 4.3 first and update your efs to v2 then install a clean cm12 and try again.
Click to expand...
Click to collapse
Hi. Thanks for your answer.
I know this is a stupid question, but how do I update my EFS?
Thank you.
Andreas.
If you install official 4.3 through odin, it will update automaticly.
thewalekk said:
If you install official 4.3 through odin, it will update automaticly.
Click to expand...
Click to collapse
Okay but then I don't really understand because I have already updated once to 4.3 OTA (or via Kies maybe) before I began installing custom roms. Shouldn't that be the same as using Odin?
Best regards.
Andreas.
I never updated via ota or kies before and never even used kies before (no needed). Also I use my s3 rooted since day one. So maybe (i say maybe because i really dont know) ota updates might keep your efs unupdated. (Since it is an update not the whole package).
Download an official 4.3 from sammobile.com and try and see. (Nothing to lose anyway)
---------- Post added at 09:22 PM ---------- Previous post was at 08:59 PM ----------
https://www.dropbox.com/s/qzgn1abhr4qcmls/Ultimate_Kernel_Cleaning_Script_v1.0_en_SGS3.zip?dl=0
https://www.dropbox.com/s/f1zbm0tvsvh5ww5/MegaWipe_-_GS3.zip?dl=0
And also these are the cleaning scripts for s3. They will wipe clean your entire phone even the system and any kernel leftovers. Use them before installing any custom roms because cm and sammy roms are completly different roms and any leftovers can make problems to your system..
@AndreasX12: Failing 3g-access has nothing to do with IMEI/efs-issues, but may be a CM-issue. So, if you've still your correct IMEI and network access with 4.3-firmware, (backup your efs-data and the whole system and) try simply another AOSP-ROM, Omni or Euphoria fe.
Recommended updating path from stock 4.3 leads through 10.2, 11 and ad last 12.1.
If you have stock 4.3 download stable cm10.2 and flash it through recovery twice and reboot. You can skip cm11 than and flash cm 12 or cm12.1.
Cm10.2 is the first one cyanogenmod which change partition layout a bit.
Converting between efs 1 and efs 2 is possible and recommended on stock firmwares by flashing corresponding modem version by Odin. It also have place while flashing whole rom through Kies, Odin or Heimdall.
To omit future 3g errors flash roms without sim card onboard.
____________________________________________
P3110 / I9300 / I9100 / NEXUS 5 / iPAD2
Thank you all for your answers.
Special thanks to rp158. I have installed OmniROM instead so it was a problem with the CM12.1 unofficial build.
Best regards,
Andreas.
Hello!
Phone Gt-i9300
So i was happily using omnirom for 1 year until my motherboard died last week
so i ordered a new board. i installed it, it was on 4.1.2 unlocked, and i decided to update it without making a efs backup! so dumb!
So i installed a 4.3 Stock ROM, no signal so i had to install
-Patched XXUFMJ9 kernel
- Patched BUUGMJ3 modem
So i can use my phone with no problems in STOCK....
BUT. I hate STOCK..
I have tried to flash omniroom 4.4.4, but it says unknown baseband, uknown imei.. i tried installing omniroom and then installed again the patched modem buugmj3 and ofcourse nothing happened...
So.. my question is.. Am I forced to stick with this TouchWiz Rom? or is there any way for me to do something to get omniroom detecting my signal?
Oh something i was forgeting.. before i updated to stock 4.3... i installed first omniroom.. but i decided to update to stock 4.3 because i was getting signal but it could take 1 HOUR for the phone to get the signal.. and from there signal would lose at any moment.
anyone? i read the FAQ and did this
Q9: I'm sure I've correctly flashed an SGSIII ROM with the right CSC for my network but why can I still not make calls?
If your phone was running an Android version less than v4.3 before you flashed a new ROM then you may need to install a patched modem and, if you upgraded to a newer stock ROM, a patched kernel too such as the zuluman modem FW/kernel. You will usually not need to install a patched kernel if you install CyanogenMod or a CM-based ROM. A number of kernels and modem firmwares patched for Android 4.3+ are available here.
Click to expand...
Click to collapse
and still nothing