I have searched and think I know what I'm doing, but I wonder if some kind soul could confirm what I think, before I eff my phone up?
I'm currently running a 4.2.2 Samsung ROM (Archidroid) but I'm not happy with the lag. I want to go back to a 4.1.2 ROM.
Am I correct in thinking that I can just flash the new ROM and then restore my EFS backup, and I won't have a problem with losing my IMEI/phone going into factory mode, etc? My EFS backup was done when I was on a 4.1 ROM. Or do I need to restore EFS before flashing the new ROM?
Thanking you!
setspeed said:
I have searched and think I know what I'm doing, but I wonder if some kind soul could confirm what I think, before I eff my phone up?
I'm currently running a 4.2.2 Samsung ROM (Archidroid) but I'm not happy with the lag. I want to go back to a 4.1.2 ROM.
Am I correct in thinking that I can just flash the new ROM and then restore my EFS backup, and I won't have a problem with losing my IMEI/phone going into factory mode, etc? My EFS backup was done when I was on a 4.1 ROM. Or do I need to restore EFS before flashing the new ROM?
Thanking you!
Click to expand...
Click to collapse
just back up efs every time. be sure> flashing firmwares based on MG, changes efs format to a new one. after that if you wanna flash a firmware based on previous releases(to XXEMG4), you will be facing network problems like no data connection, no calls, no text messages etc., so once you flash a firmware i.e released after MG4, be sure the next custom rom/ stock f/w you flash is newer to it. good luck
Can I not flash an older firmware safely by restoring my EFS? Or is it risky?
setspeed said:
Can I not flash an older firmware safely by restoring my EFS? Or is it risky?
Click to expand...
Click to collapse
go through this thread: http://forum.xda-developers.com/showthread.php?t=2393289
:good:
sriram231092 said:
go through this thread: http://forum.xda-developers.com/showthread.php?t=2393289
:good:
Click to expand...
Click to collapse
Yeah thanks, I've read that more than once:
If you have ever flashed XXEMG* (or newer) ROM, to keep your IMEI working, you must:
1. Stay with the EFS v2 basebands (MG* or newer). You may flash other ROMs but must return to the MG* (or newer) baseband
2. Restore your EFS backup (taken before XXEMG* or newer ROM install) to use older (EFS v1) basebands. EFS backup must be an EFSv1 backup to use an EFS v1 baseband
3. If the above don't work, consider sending for repair...
This is the part I am worried about.
setspeed said:
Yeah thanks, I've read that more than once:
If you have ever flashed XXEMG* (or newer) ROM, to keep your IMEI working, you must:
1. Stay with the EFS v2 basebands (MG* or newer). You may flash other ROMs but must return to the MG* (or newer) baseband
2. Restore your EFS backup (taken before XXEMG* or newer ROM install) to use older (EFS v1) basebands. EFS backup must be an EFSv1 backup to use an EFS v1 baseband
3. If the above don't work, consider sending for repair...
This is the part I am worried about.
Click to expand...
Click to collapse
that's what exactly i was trying to tell you. XXEMG4 f/w is some what problematic but the f/w-s released after that are good enough. once you flash any of these f/w-s, back up your efs for sure.
:good:
Yes, but I want to go back to a ROM with an earlier baseband than EMG4, so I can use a custom kernel. The performance on later ROMs with the standard kernel (which is all you can use at the moment) is not satisfactory.
So my question is, in order to go back to a ROM based on firmware earlier than EMG4, can it be done SAFELY? If so, do I need to restore my EFS backup before I flash the ROM or afterwards? Or, if it's not safe then what should I do to minimise my chances of messing my phone up?
setspeed said:
Yes, but I want to go back to a ROM with an earlier baseband than EMG4, so I can use a custom kernel. The performance on later ROMs with the standard kernel (which is all you can use at the moment) is not satisfactory.
So my question is, in order to go back to a ROM based on firmware earlier than EMG4, can it be done SAFELY? If so, do I need to restore my EFS backup before I flash the ROM or afterwards? Or, if it's not safe then what should I do to minimise my chances of messing my phone up?
Click to expand...
Click to collapse
yes you can. you can even flash a custom kernel on MG4 or later buddy!
i loss my imei and sn by downgrading 4.2.2 to 4.1.2 No Network NO imei emergency calls. but somehow My IMEI and NETWORK is back but not SN number
chuchusweet said:
i loss my imei and sn by downgrading 4.2.2 to 4.1.2 No Network NO imei emergency calls. but somehow My IMEI and NETWORK is back but not SN number
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1918601
sriram231092 said:
http://forum.xda-developers.com/showthread.php?t=1918601
Click to expand...
Click to collapse
its not working i tried
chuchusweet said:
its not working i tried
Click to expand...
Click to collapse
Try different 4.1.2 stock roms prior to 'MG' series. Make a clean installation.
As you were on 4.2.2, you were probably not on efs v2. Take backup of efs.
Sent Via I9300, Stock XXUFME7, 4.2.2.
how to restore to 4.1.2??
I have installed 4.4.2 AOKP firmware on S3 GT I9300. I have backup of previous version 4.1.2 through CWM backup. Now i am trying to restore 4.1.2 backup through CWM but unable to do. I have tried a lot but can't restore previous.
Plz anybody help me resolving this issue. how to restore my previous version 4.1.2 from 4.2.2 with the existing backup?
Thankss if anybody help me out.
Related
Hey Guys,
So I had my usual SIM card working as usual on G4 stock 4.1.2 firmware. I later on flashed CM10.2 20130814 Nightly build after which my phone was stuck on Emergency Calls only. I flashed three different stock 4.1.2 official firmwares after that but nothing seemed to fix it. They recognised my SIM and carrier though they weren't able to make calls and whenever I tried to it gave me the error message "Not registered on Network".
It is a fully unlocked i9300. I would really like your guys help on this.
Questions go in the Q&A forum, report your post and ask for it to be moved.
Does your IMEI number in phone match the one under the battery?
Did you make a backup of your efs folder like all the guides recommend?
If your IMEI has changed and you don't have a backup then flashing the latest full stock via odin on your pc sometimes enables the partition to be read again.
boomboomer said:
Questions go in the Q&A forum, report your post and ask for it to be moved.
Does your IMEI number in phone match the one under the battery?
Did you make a backup of your efs folder like all the guides recommend?
If your IMEI has changed and you don't have a backup then flashing the latest full stock via odin on your pc sometimes enables the partition to be read again.
Click to expand...
Click to collapse
Well, This is the Q&A section. Anyways, I didn't make a backup of EFS. I tried flashing stock as mentioned in the OP but it didn't prevail so what should be the next line of action? xD
Hah! Sorry, my browser took me back to q&a from general.
Does the IMEI match?
If not then you need a repair.
I am currently back to flashing another stock firmware so didn't check. If it doesn't match then what sort of repair would it need?
Taimur Akmal said:
Well, This is the Q&A section. Anyways, I didn't make a backup of EFS. I tried flashing stock as mentioned in the OP but it didn't prevail so what should be the next line of action? xD
Click to expand...
Click to collapse
Nothing much.
Refer this http://forum.xda-developers.com/showthread.php?t=2393289...
sent from the state where marijuana is NOT illegal !
chris_marsh said:
Nothing much.
Refer this http://forum.xda-developers.com/showthread.php?t=2393289...
sent from the state where marijuana is NOT illegal !
Click to expand...
Click to collapse
Thanks for the header.
For anyone who finds this thread.
Problem: /efs partition format changed
The latest 4.1.2 UK (XXEMG4) and India (XXEMG5) ROM releases (Which come with MG4 and MG2 basebands respectively), actually change the format of efs.
If you have flashed a, XXEMG4/5 ROM at any point, you are now in a situation whereby only an MG4/2 baseband can read the IMEI in /efs. The new efs format is not backwards compatible with older basebands. Probably, all new basebands will be compatible so in time this issue should diminish I expect.
If you have ever flashed XXEMG4/5 ROM, to keep your IMEI working, you must:
Stay with the basebands MG4/2. You may flash other ROMs but must return to the MG4/2 baseband.
Restore your efs backup (taken before XXEMG4/5 ROM install) to use older basebands.
Please note, it is flashing the ROM that alters efs format, not the basebands themselves. You can flash the MG4 or 2 baseband safely on their own and return to an older baseband without issue.
You can download an MG2/4 baseband package HERE
Aroma installer, choose between MG2 and MG4 basebands
Basebands alone do not alter efs format
Backs up EFS in an uncompressed format (Use Root Explorer to restore)
Does NOT include RIL, works on AOSP and Sammy
Source: http://forum.xda-developers.com/showthread.php?t=2393289 Super Thanks to chris_marsh and rootSU.
Moderator---- Close this thread------
Taimur Akmal said:
Thanks for the header.
For anyone who finds this thread.
Problem: /efs partition format changed
The latest 4.1.2 UK (XXEMG4) and India (XXEMG5) ROM releases (Which come with MG4 and MG2 basebands respectively), actually change the format of efs.
If you have flashed a, XXEMG4/5 ROM at any point, you are now in a situation whereby only an MG4/2 baseband can read the IMEI in /efs. The new efs format is not backwards compatible with older basebands. Probably, all new basebands will be compatible so in time this issue should diminish I expect.
If you have ever flashed XXEMG4/5 ROM, to keep your IMEI working, you must:
Stay with the basebands MG4/2. You may flash other ROMs but must return to the MG4/2 baseband.
Restore your efs backup (taken before XXEMG4/5 ROM install) to use older basebands.
Please note, it is flashing the ROM that alters efs format, not the basebands themselves. You can flash the MG4 or 2 baseband safely on their own and return to an older baseband without issue.
You can download an MG2/4 baseband package HERE
Aroma installer, choose between MG2 and MG4 basebands
Basebands alone do not alter efs format
Backs up EFS in an uncompressed format (Use Root Explorer to restore)
Does NOT include RIL, works on AOSP and Sammy
Source: http://forum.xda-developers.com/showthread.php?t=2393289 Super Thanks to chris_marsh and rootSU.
Moderator---- Close this thread------
Click to expand...
Click to collapse
In Same Situation.. is there any solution??? your given link not working any more.
UrduGeek said:
In Same Situation.. is there any solution??? your given link not working any more.
Click to expand...
Click to collapse
Try installing the latest Galaxy S3 official firmware. It should fix it.
Taimur Akmal said:
Try installing the latest Galaxy S3 official firmware. It should fix it.
Click to expand...
Click to collapse
NO it didn't work as i installed the latest firmware through odin, and then get OTA as well but it didnt solve the issue, then i installed the MK6 BTU firmware but it didnt work as well.
tired of installing the ROM's and Patches but non of them worked, is there any posibility to get it in working condition or should i use it as IPOD???
Take it to a repair centre and pay them to recode it, make sure it works on 4.3 firmware before you pay them.
Patches are a work around for modified efs problems, a corrupt or wiped efs can only be solved by professional repair.
I have an i9300 with a blank efs folder. The phone corrupted and was stuck in a boot loop. This happened when battery run out while file sharing was in progress via bluetooth to another android samsung. I flashed it with 4.22 android jelly bean immediately XXUFME3 but it remained stuck on boot loop, I never backedup efs file. Later found the original ROM although it comes up as custom rom, which is i9300XXEMB5_i9300OXAEMB5 but still no luck as it stuck in boot loop. My sister has the same identical phone both were purchased together in Dubai. I did factory reset etc, no luck still in boot loop.
I later gave it to a mobile shop who flashed it with a rom for free, didn't charge me because it came up as imei null/null and baseband unknown. The phone now boots and has Build number of IMM76D.I9300BUALE6 and is german language I believe. I had read some threads by now and I immediately rooted the phone and backed it up, but my efs folder is blank.
Last night I flashed the phone 2 times with i9300xxemb5 rom and rooted it and it still boot looped even factory reset or cache delete don't solve boot loop, Then I restored the working rom of build i9300BUALE6 from CWM and powered phone on and got a baseband of i9300XXEMB5 and Build of i9300BUALE6 also got an imei of 004999xxxxx0000/01 and the phone found the network and my efs folder which had been blank all this time was full of files. In my haste I realized the sim was not plugged in and removed battery, when I restarted with sim, baseband was gone and imei was null/null. I repeated my steps in hopes I could get this fluke opportunity but nothing yet. Was this a miracles I didn't seize by not backing up the efs folder?
My sister's phone is an identical model bought together with mine is,
AP:i9300xxemb5
CP:i9300xxemb5
CSC:i9300oxaemb5
So my question is I need the original stock rom for my sisters phone that won't get stuck in a boot loop on my phone
My phone is now
AP:i9300buale6
CP:unknown
CSC:i9300vfgale6
Also can this be fixed by backing up my sister's efs folder or backing up her phone and flashing it on my phone. I can't get warranty for this phone now since it has binary counter of 12, don't have proof of purchase and also I am not in Dubai but in Africa. What Rom file should I try to flash. Also because this is a custom rom I am not getting samsung serial port in device manager can't use NV writer. Any help is appreciated.
If you don't have an efs backup then you need a service centre, you cannot repair it. Trying to use another phone's efs folder won't work and is illegal in many countries.
Read the sticky on efs:
http://forum.xda-developers.com/showthread.php?t=2393289
If its a custom rom their is a very small chance that it included backup pf EFS .
Look for EFS tar file on phone .
I say slim chance and judged by the OP probably no chance .
004999xxxxx0000/0 that's just the generic non working IMEI .
jje
JJEgan said:
If its a custom rom their is a very small chance that it included backup pf EFS .
Look for EFS tar file on phone .
I say slim chance and judged by the OP probably no chance .
004999xxxxx0000/0 that's just the generic non working IMEI .
jje
Click to expand...
Click to collapse
Sorry to hijack this thread but I dropped my S3 i9300 on water and have the imei null /null and baseband unknown problem, therefore SIM cards are not recognized. Do you think my problem can be solved by doing something without taking it to samsung service? Meanwhile I ordered a SIM /SD tray replacement but my bet is it won't solve the problem.
Thank you.
No.
Sent from my GT-I9300 using Tapatalk 4
rootSU said:
No.
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
Thanks again for your input but I was hoping to get a second opinion
Cheers
I see...
@JJEgan - you've been chosen
Sent from my GT-I9300 using Tapatalk 4
hi from what you explained it seems that right now your phone has no baseband. One thing you can do to possibly recover your imei and network settings is to flash a stock rom that uses mg4 or mg2 baseband. use a rom from sammobile and flash with odin make sure you use a rom with an mg2 or mg4 baseband. good luck
ashraf sharif said:
hi from what you explained it seems that right now your phone has no baseband. One thing you can do to possibly recover your imei and network settings is to flash a stock rom that uses mg4 or mg2 baseband. use a rom from sammobile and flash with odin make sure you use a rom with an mg2 or mg4 baseband. good luck
Click to expand...
Click to collapse
Thanks a lot for the reply.
A user from another thread suggested to install the Perseus Kernel first. Do you think that would help?
Cheers
Badelhas said:
Thanks a lot for the reply.
A user from another thread suggested to install the Perseus Kernel first. Do you think that would help?
Cheers
Click to expand...
Click to collapse
A custom kernel has no connection with the lost of IMEI or it's a solution for the recovery of an IMEI. So no, no custom kernels will help you with your problem.
Either try ashraf's suggestion or ultimately bring it to a Samsung service center for repair.
SignetSphere said:
A custom kernel has no connection with the lost of IMEI or it's a solution for the recovery of an IMEI. So no, no custom kernels will help you with your problem.
Click to expand...
Click to collapse
Thanks for the input, M8. So you think I could try to flash a stock rom that uses mg4 or mg2 baseband?
Badelhas said:
Thanks for the input, M8. So you think I could try to flash a stock rom that uses mg4 or mg2 baseband?
Click to expand...
Click to collapse
You can try but i doubt that it'll restore your IMEI. If that doesn't work then you have no choice other than to bring it to Samsung for repair.
Badelhas said:
Thanks a lot for the reply.
A user from another thread suggested to install the Perseus Kernel first. Do you think that would help?
Cheers
Click to expand...
Click to collapse
I don't know about perseus kernel but I don't think it will help. your imei and efs foder was intact before flashing4.2.2. I understand that the problem began before flashing 4,2,2. but if you ever had a rom that used an mg4 or mg2 modem and then used an older modem your phone would lose its network connection and would probably display a generic imei number. if it says null usually that means it is corrupted or no modem is installed . either way if you send to service center you need to flash a stock rom and reset your flash counter . since some people have recovered their efs and imei by flashing newer modems or firm wares that use them why not try it before sending phone to service center
ashraf sharif said:
I don't know about perseus kernel but I don't think it will help. your imei and efs foder was intact before flashing4.2.2. I understand that the problem began before flashing 4,2,2. but if you ever had a rom that used an mg4 or mg2 modem and then used an older modem your phone would lose its network connection and would probably display a generic imei number. if it says null usually that means it is corrupted or no modem is installed . either way if you send to service center you need to flash a stock rom and reset your flash counter . since some people have recovered their efs and imei by flashing newer modems or firm wares that use them why not try it before sending phone to service center
Click to expand...
Click to collapse
Thanks but you didn't read my first post. I did not flash any rom (or even root) before the problem, which started from dropping the phone on water...so I have no warranty left This means I can take the phone anyway I want (custom kernel, rooted) to samsung service cause they will charge me anywat.
But I think I will try to flash a rom like the other user sayd because I flashed the Perseus Kernel and the phone is now unstable and reboots randonly...
Cheers
my mistake that post was for the op of this thread
I don't care anymore that my original answer was
deemed not acceptable enough and warranted a second opinion. I am once and for all, going to put this nonsense to bed.
If you lost your imei because you submerged your phone in water it is a hardware issue. It is INCONCEIVABLE that flashing a rom, kernel or baseband will restore the imei. A SOFTWARE solution will NOT repair DAMAGED HARDWARE. This is obvious!
If your Blu ray player cannot read disks because the disk tray fell off, upgrading the laser driver wont help. This is exactly the same.
Depending which hardware failed, replacing the tray may help although given the symptoms, it seems much more likely that your radio stack is damaged. Take it somewhere to get it repaired and stop wasting time pretending software will fix your issue. It's IMPOSSIBLE
Sent from my GT-I9300 using Tapatalk 4
And so say all of us .
Hi, SignetSphere
Sorry for hijcking but your sign here says
Device: Samsung Galaxy SIII GT-I9300
ROM: Stock (XXEMH1 Odexed 4.1.2 Jellybean)
Kernel: Boeffla 3.0
Baseband: I9300CEEMG2
Recovery: PhilZ Touch 5.11.2
Mods: Jkay Deluxe 14.95 & ViPER4Android Audio Effects
Theme: Dream Themes 1.9 by orangerot
by highlighting i want to emphasise these points (do let me know have i understood correctly)
1) i'm on stock XXEMG5 and yours is MH1 which means yours is ahead of mine and how's it better or it's just region specific???
2)you are on MG2 baseband/modem does that means you also have to be restricted to MG2 baseband/modem only when flashing roms????
thanks in advance.....
gauravinvouge said:
Hi, SignetSphere
Sorry for hijcking but your sign here says
Device: Samsung Galaxy SIII GT-I9300
ROM: Stock (XXEMH1 Odexed 4.1.2 Jellybean)
Kernel: Boeffla 3.0
Baseband: I9300CEEMG2
Recovery: PhilZ Touch 5.11.2
Mods: Jkay Deluxe 14.95 & ViPER4Android Audio Effects
Theme: Dream Themes 1.9 by orangerot
by highlighting i want to emphasise these points (do let me know have i understood correctly)
1) i'm on stock XXEMG5 and yours is MH1 which means yours is ahead of mine and how's it better or it's just region specific???
2)you are on MG2 baseband/modem does that means you also have to be restricted to MG2 baseband/modem only when flashing roms????
thanks in advance.....
Click to expand...
Click to collapse
I see you're still struggling to understand this.
2) If the ROM is MG (M = 2013, G = July) or Newer, the ROM changes EFS format. This means if you flash one of these ROMs without backing up your EFS, you are restricted to using an MG modem or newer as only Modems from July 2013 can read new EFS format. I'm really not sure how I can make this any simpler to understand.
However, if you flash the modem separately from the ROM, EFS is not changed. So for example, if you are on ME7 ROM, you can flash MG2 modem without affecting EFS.
I hope this is clear now.
rootSU said:
I see you're still struggling to understand this.
2) If the ROM is MG (M = 2013, G = July) or Newer, the ROM changes EFS format. This means if you flash one of these ROMs without backing up your EFS, you are restricted to using an MG modem or newer as only Modems from July 2013 can read new EFS format. I'm really not sure how I can make this any simpler to understand.
However, if you flash the modem separately from the ROM, EFS is not changed. So for example, if you are on ME7 ROM, you can flash MG2 modem without affecting EFS.
I hope this is clear now.
Click to expand...
Click to collapse
Dear rootSU,
you've been very patient with me and i really appreciate your efforts at making me understand and i've understood a lot because of you only,but what puzzles me is that
1)this restriction is for those who've not backed up EFS whereas in my case i had in the very beginning only made an EFS backup.
2)and if i flash ME7 ROM then since am coming from MG5 to ME7 my imei would again be corrupt and i'll have to flash MG2 baseband...right??even if i have an EFS backup(EFS PRO won't restore my imei in this case despite a backup)?
thanks in advance
SOLUTION:
Flashed this patched modem:
Code:
http://forum.xda-developers.com/showpost.php?p=45038238&postcount=466
Now back to network
Also PLEASE BACKUP YOUR EFS!! BACK IT UP!! ASAP!!
I flashed a MG4 rom and after that the imei is changed. I do not have efs backup.
The IMEI has been changed to a new one and the mob is showing emergency calls and not registered on network.
The Serial Number has changed to 00000000000
I cannot make calls or text other than that the mob works ok.
The imei was 353xxxxxx and now it is 3591xxxxxx
Can anybody help?
Also the rom was sammy not a custom rom so i got no backup of EFS.
I tried using MG4 baseband but same error.
Ariza patch simply nulls the imei and hence not working for me.
converse5 said:
I flashed a MG4 rom and after that the imei is changed. I do not have efs backup.
The IMEI has been changed to a new one and the mob is showing emergency calls and not registered on network.
The Serial Number has changed to 00000000000
I cannot make calls or text other than that the mob works ok.
The imei was 353xxxxxx and now it is 3591xxxxxx
Can anybody help?
Also the rom was sammy not a custom rom so i got no backup of EFS.
I tried using MG4 baseband but same error.
Ariza patch simply nulls the imei and hence not working for me.
Click to expand...
Click to collapse
You have to read the posts by zuluman at the end of the arizan thread about patching modem
@rootSU
I have to install the patched modem right?
I istalled this patch and now back to network!!
Thanks alot for your help zuluman and rootSu
rootSU said:
You have to read the posts by zuluman at the end of the arizan thread about patching modem
Click to expand...
Click to collapse
Also just a quick question, Now what if i install another custom rom. Will I have to install the patched modem only or do i have to restore the present efs wihch is in working condition.?
converse5 said:
Also just a quick question, Now what if i install another custom rom. Will I have to install the patched modem only or do i have to restore the present efs wihch is in working condition.?
Click to expand...
Click to collapse
If your rom comes with a modem, you'll need to reflash the patched one. Otherwise, no action to take.
Thanks alot!
I am glad that my device is back in life
converse5 said:
I istalled this patch and now back to network!!
Thanks alot for your help zuluman and rootSu
Click to expand...
Click to collapse
Out of interest, was it simply from this post:
http://forum.xda-developers.com/showpost.php?p=45098088&postcount=476
You flashed?
Edit > I see you updated OP and flashed specific modem.
Yes i flashed the patched modem and the network is back online and up until now the phone seems pretty good and batteryl life is excellent.
Also I am on stock JB firmware for now.
I'm having the same problem. Did you flash modem by downloading and pasting into an sd card and then by using TWRP on your phone?
I've got the same issue, was running on stock 4.3 and flash a different stock rom on it , lost my imei and baseband now am stuck with no network , looked for solutions all round but non is working .. didn't back up my EFS too . Can anyone help with this ?
qwaiks said:
I've got the same issue, was running on stock 4.3 and flash a different stock rom on it , lost my imei and baseband now am stuck with no network , looked for solutions all round but non is working .. didn't back up my EFS too . Can anyone help with this ?
Click to expand...
Click to collapse
Depends what you mean by "different stock rom".
If you flashed backwards to 4.1.2 then your efs isn't damaged, it just can't be read because the encryption keys changed at 4.3. You cannot downgrade without an efs backup from 4.1.2. In that case you should be able to flash back to 4.3 and your efs will be ok.
You can also try kies emergency recovery. Depending on your os depends on which kies (2 or 3) to use.
Beamed in by telepathy.
I flashed via odin the pana I9300UBEMH2 I9300UWHEMH1 . but when i went back to the stock one i have imei 0049 - I tough this could happen only with mg4 roms . i flashed the panama one and i got my signal and imei back. but im not sure of wich roms can i flash now
can u help me?
leboreiro said:
I flashed via odin the pana I9300UBEMH2 I9300UWHEMH1 . but when i went back to the stock one i have imei 0049 - I tough this could happen only with mg4 roms . i flashed the panama one and i got my signal and imei back. but im not sure of wich roms can i flash now
can u help me?
Click to expand...
Click to collapse
Please read general > Sticky roll-up thread / IMEI / EFS - Know this stuff.
Every ROM since July changes EFS. Why would only July ROMs do the upgrade then not August?
rootSU said:
Please read general > Sticky roll-up thread / IMEI / EFS - Know this stuff.
Every ROM since July changes EFS. Why would only July ROMs do the upgrade then not August?
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Click to collapse
i have just 2 or 3 simple questions. especific quesitons that i cannot find the answer on your post. or maybe the answer is on the next 11 pages? you mention on your post only MG4 roms or newer. don't say anything about Mh2 . so the questions is kinda easy, would i am able to have signal and imea read on a 4.1.2 if i flash a mg4 modem after install ? . and same thing happen to 4.2.2 or 4.3 will i have to always flash a custom modem to have my imea readden?
leboreiro said:
i have just 2 or 3 simple questions. especific quesitons that i cannot find the answer on your post. or maybe the answer is on the next 11 pages?
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You have asked no questions that are not answered in post 1. I made post as easy as possible for all to understand. There is not much else I can do about it.
rootSU said:
You have asked no questions that are not answered in post 1. I made post as easy as possible for all to understand. There is not much else I can do about it.
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I've got this fragment you wrote.
"If you have ever flashed XXEMG* (or newer) ROM, to keep your IMEI working, you must:
Stay with the EFS v2 basebands (MG* or newer). You may flash other ROMs but must return to the MG* (or newer) baseband
Restore your EFS backup (taken before XXEMG* or newer ROM install) to use older (EFS v1) basebands. EFS backup must be an EFSv1 backup to use an EFS v1 baseband
If the above don't work, consider sending for repair... "
SO i will have to back up and restore the mg4 mh2 efs every time i want to change rom for a older one.. do you know if 4.3 (as it will be obviosly new) will have a mg4 or mh2 mh1 modem? . im kinda having problems on my calls . internet and messanging are just fine . but some times when i want to call the automatic operator says " the call could not be proccesed" but dunno if this is a signal problem or it is just me.
does k tools back up v2 efs?
leboreiro said:
SO i will have to back up and restore the mg4 mh2 efs every time i want to change rom for a older one
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From my thread:
rootSU said:
If you have ever flashed XXEMG* (or newer) ROM, to keep your IMEI working, you must:
Stay with the EFS v2 basebands (MG* or newer). You may flash other ROMs but must return to the MG* (or newer) baseband
Restore your EFS backup (taken before XXEMG* or newer ROM install) to use older (EFS v1) basebands. EFS backup must be an EFSv1 backup to use an EFS v1 baseband
If the above don't work, consider sending for repair...
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Click to collapse
leboreiro said:
do you know if 4.3 (as it will be obviosly new) will have a mg4 or mh2 mh1 modem?
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How could we know? Why would we need to know? There are new modems coming out every month. 2 in July alone at least 1 in August
leboreiro said:
does k tools back up v2 efs?
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Why would it not?
rootSU said:
From my thread:
How could we know? Why would we need to know? There are new modems coming out every month. 2 in July alone at least 1 in August
Why would it not?
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thanks for your support u've been very helpful.
after flashing 4.3 baeds rom and failed to start..i managed to flash new firmware 4.1.2 with odin..but after starting up..my phone doesnt have network(not registerd network) and my serial written like that 00004400****.. then trying to do a full wipe and re-flashed the firmware again..also no network...how can i fix that plz ????
zeyadrani said:
after flashing 4.3 baeds rom and failed to start..i managed to flash new firmware 4.1.2 with odin..but after starting up..my phone doesnt have network(not registerd network) and my serial written like that 00004400****.. then trying to do a full wipe and re-flashed the firmware again..also no network...how can i fix that plz ????
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please read the stickies in general sections and search first, I think half of the >1000 threads here in Q&A section are filled with the same question
http://forum.xda-developers.com/showthread.php?t=2393289
I hope you have an efs backup. if not follow the steps in the linked thread.
btw which 4.1.2 did you flash. when you flash 4.3 rom efs will change to v2 so you need a rom with efs v2 baseband (everything newer than xeemg4)
zeyadrani said:
after flashing 4.3 baeds rom and failed to start..i managed to flash new firmware 4.1.2 with odin..but after starting up..my phone doesnt have network(not registerd network) and my serial written like that 00004400****.. then trying to do a full wipe and re-flashed the firmware again..also no network...how can i fix that plz ????
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Read this post 1441: http://forum.xda-developers.com/showthread.php?p=48578725#post48578725
It works for me.
Darkened_Sky said:
please read the stickies in general sections and search first, I think half of the >1000 threads here in Q&A section are filled with the same question
http://forum.xda-developers.com/showthread.php?t=2393289
I hope you have an efs backup. if not follow the steps in the linked thread.
btw which 4.1.2 did you flash. when you flash 4.3 rom efs will change to v2 so you need a rom with efs v2 baseband (everything newer than xeemg4)
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i flashed stock firmware 4.1.2
zeyadrani said:
i flashed stock firmware 4.1.2
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yeah I know but which one (the build number) something like XXELLA or XXEMG4...? you can see it in settings menu
in fact if you have flashed a firmware older than XXEMG4 then also its baseband is flashed, and these old basebands are not compatible with efs v2 which has been flashed through your sammy 4.3 update.
This could PROBABLY have caused your imei problem and you would only have to flash a baseband newer than XXEMG4 to PROBABLY solve it. or your efs is corrupt than you should follow the steps in the stickies
Darkened_Sky said:
yeah I know but which one (the build number) something like XXELLA or XXEMG4...? you can see it in settings menu
in fact if you have flashed a firmware older than XXEMG4 then also its baseband is flashed, and these old basebands are not compatible with efs v2 which has been flashed through your sammy 4.3 update.
This could PROBABLY have caused your imei problem and you would only have to flash a baseband newer than XXEMG4 to PROBABLY solve it. or your efs is corrupt than you should follow the steps in the stickies
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U dun have to flash a modem NEWER than xxemg4. U nid to flash xxemg4 modem and its okay alr. Mg4 modem will work.
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you
Darkened_Sky said:
yeah I know but which one (the build number) something like XXELLA or XXEMG4...? you can see it in settings menu
in fact if you have flashed a firmware older than XXEMG4 then also its baseband is flashed, and these old basebands are not compatible with efs v2 which has been flashed through your sammy 4.3 update.
This could PROBABLY have caused your imei problem and you would only have to flash a baseband newer than XXEMG4 to PROBABLY solve it. or your efs is corrupt than you should follow the steps in the stickies
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will it work if i flashed XXELLA then restored my efs ?!!
zeyadrani said:
will it work if i flashed XXELLA then restored my efs ?!!
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so the firmware you have flashed is XXELLA?
and do you have an efs backup or not? (sorry I do not really understand your sentence)
Thaaaaaanks I have solved that....my imiel and sn is back
Sent from my GT-I9300 using xda premium