Related
Well today i found out after getting tired of this trying to root 4.3 i decided to use a custom rom again.
Guess what happend...
No custom rom works anymore as imei magically dissapears. It only returns if you ... guess what...
Use Sony 4.3.
Well thank you very much Sony assholes for updating s1boot and making it irreversibel.
Luckily it seem that it might be able to get fixed with new proprietary blobs but that will maybe take some time for some dev's to add on their builds.
Downgrade Via Flashtool
Reb0rn said:
Well today i found out after getting tired of this trying to root 4.3 i decided to use a custom rom again.
Guess what happend...
No custom rom works anymore as imei magically dissapears. It only returns if you ... guess what...
Use Sony 4.3.
Well thank you very much Sony assholes for updating s1boot and making it irreversibel.
Luckily it seem that it might be able to get fixed with new proprietary blobs but that will maybe take some time for some dev's to add on their builds.
Click to expand...
Click to collapse
Are you trying to downgrade with Flashtool?, cause in Xperia Z1 is the same, the IMEI goes to 00000 but when you downgrade to 4.2.2 exclude the baseband and everything is ok and then you can flash your custom rom.......
cgomezparra said:
Are you trying to downgrade with Flashtool?, cause in Xperia Z1 is the same, the IMEI goes to 00000 but when you downgrade to 4.2.2 exclude the baseband and everything is ok and then you can flash your custom rom.......
Click to expand...
Click to collapse
i could kiss yo dawg
Thanks!!!
cgomezparra said:
Are you trying to downgrade with Flashtool?, cause in Xperia Z1 is the same, the IMEI goes to 00000 but when you downgrade to 4.2.2 exclude the baseband and everything is ok and then you can flash your custom rom.......
Click to expand...
Click to collapse
Oh god thanks :good:
i had this experience: i have the 6802, and i was on the stock 4.3 update, flashed the adv. stock kernel to get recovery, and restored a CM10.2 nandroid. when it booted up i had no radio signal, so i restored everything from a .257 FTF except system and kernel, and after that everything was fine. i don't know if this was 'correct', but it worked. i didn't check to see if i lost IMEI, but i definitely have it after doing those steps.
Reb0rn said:
i could kiss yo dawg
Thanks!!!
Click to expand...
Click to collapse
you might mark the OP as SOLVED and list the solution
I simply did a nandroid restore with the CWM recovery from the CM 10.2 boot.img - all up and running, IMEI still there.
lmemma16 said:
i had this experience: i have the 6802, and i was on the stock 4.3 update, flashed the adv. stock kernel to get recovery, and restored a CM10.2 nandroid. when it booted up i had no radio signal, so i restored everything from a .257 FTF except system and kernel, and after that everything was fine. i don't know if this was 'correct', but it worked. i didn't check to see if i lost IMEI, but i definitely have it after doing those steps.
Click to expand...
Click to collapse
Yes, flashing .257 FTF fixed it for me too (C6802). I flashed everything.
ChillyChan said:
Yes, flashing .257 FTF fixed it for me too (C8602). I flashed everything.
Click to expand...
Click to collapse
ah hey, cool. yeah, i would'a flashed everything but i wanted to stay on CM10.2. so i just made sure the other firmware was downgraded.
but again, it seems possible that there cold be other differences between the 6802 and the others? i dunno, but some people seem to be saying to use the baseband from .290 even if you downgrade back to .257?
lmemma16 said:
ah hey, cool. yeah, i would'a flashed everything but i wanted to stay on CM10.2. so i just made sure the other firmware was downgraded.
but again, it seems possible that there cold be other differences between the 6802 and the others? i dunno, but some people seem to be saying to use the baseband from .290 even if you downgrade back to .257?
Click to expand...
Click to collapse
In my case, I wanted to go back to stock. That's why I flashed everything About the baseband, I don't know cause I didn't note down the version before I flashed .290 so I have nothing to compare to. The one major difference of C6802 from other models is that we can flash ROMs without needing fastboot 'cause kernels are somehow allowed to be flashed from recovery.
please edit the original post title to reflect there's no problem
thanks
so im on 4.3 unrooted
was planning on flashing omni 4.4 .. i need to flash 4.2 (without the baseband) root it and then install omni? kinda confused! lol
androidindian said:
so im on 4.3 unrooted
was planning on flashing omni 4.4 .. i need to flash 4.2 (without the baseband) root it and then install omni? kinda confused! lol
Click to expand...
Click to collapse
Ya thts right.Plus you have to unlock the bootloader too if u havnt yet.
Hrm... You know, for the life of me, every time I flash from the 4.3 update with Flash Tool, I still lose my IMIE data and thus can't use the mobile connection.
Shadow of Chaos said:
Hrm... You know, for the life of me, every time I flash from the 4.3 update with Flash Tool, I still lose my IMIE data and thus can't use the mobile connection.
Click to expand...
Click to collapse
u and me both... if i jump to a older FTF i get imei 000000000
But if i jump to the newest before 4.3 i get imei 0
and excluding baseband didnt work... so no its not solved.
Reb0rn said:
u and me both... if i jump to a older FTF i get imei 000000000
But if i jump to the newest before 4.3 i get imei 0
and excluding baseband didnt work... so no its not solved.
Click to expand...
Click to collapse
I went from 290 to 532 without baseband and lost IMIE.
Flashed 290 WITH baseband and now have imei back. :good:
kable said:
I went from 290 to 532 without baseband and lost IMIE.
Flashed 290 WITH baseband and now have imei back. :good:
Click to expand...
Click to collapse
Same here but it's not good as I can't flash custom roms...
Sent from my C6833 using Tapatalk 4
Reb0rn said:
Same here but it's not good as I can't flash custom roms...
Sent from my C6833 using Tapatalk 4
Click to expand...
Click to collapse
what about fastboot boot an image to get into recovery to do a nandroid, that should retain your imei
velvetmxo said:
what about fastboot boot an image to get into recovery to do a nandroid, that should retain your imei
Click to expand...
Click to collapse
Don't have a nandroid.
Sent from my C6833 using Tapatalk 4
Reb0rn said:
Don't have a nandroid.
Sent from my C6833 using Tapatalk 4
Click to expand...
Click to collapse
oh man
Guyzz need help...
I have a s3 with german firmware...check screenshots...
so my problem is can i flash indian firmware 4.3 directly on german 4.1.2 via odin or i have to do anything extra...
plz reply me ASAP!
Thanx....
Ashish924 said:
Guyzz need help...
I have a s3 with german firmware...check screenshots...
so my problem is can i flash indian firmware 4.3 directly on german 4.1.2 via odin or i have to do anything extra...
plz reply me ASAP!
Thanx....
Click to expand...
Click to collapse
If you got the I9300 model with no sim lock- no problem.
Ps- notice that if your current build is below EMG4, than your file partition will be changed to EFSv2,
needs to be noticed if you'll try to go back to 4.1.2 afterwards
amirTor said:
If you got the I9300 model with no sim lock- no problem.
Ps- notice that if your current build is below EMG4, than your file partition will be changed to EFSv2,
needs to be noticed if you'll try to go back to 4.1.2 afterwards
Click to expand...
Click to collapse
I think he can go back after flashing 4.3 ROM. I have done that.
Aashish, you can install any ROM as per your requirement if SIM is not locked with any SP.
But there is a chances of loosing IMEI. So please take backup. Search and download MG4 modem handy.
KSKHH said:
I think he can go back after flashing 4.3 ROM. I have done that.
Aashish, you can install any ROM as per your requirement if SIM is not locked with any SP.
But there is a chances of loosing IMEI. So please take backup. Search and download MG4 modem handy.
Click to expand...
Click to collapse
Sorry for noob quesn but what is SP and MG4 modem handy??
KSKHH said:
I think he can go back after flashing 4.3 ROM. I have done that.
Aashish, you can install any ROM as per your requirement if SIM is not locked with any SP.
But there is a chances of loosing IMEI. So please take backup. Search and download MG4 modem handy.
Click to expand...
Click to collapse
Yeah what you propose seems very straightforward BUT it would be advisable to do a full backup INCLUDING EFS, just check the EFS box in TWRP for instance, as it's not usually included in a backup by default.
pjcarrmole said:
Yeah what you propose seems very straightforward BUT it would be advisable to do a full backup INCLUDING EFS, just check the EFS box in TWRP for instance, as it's not usually included in a backup by default.
Click to expand...
Click to collapse
hey...i dont wanna void official status...i.e i dont want to install any custom recovery...i want everything to stay official
Ashish924 said:
hey...i dont wanna void official status...i.e i dont want to install any custom recovery...i want everything to stay official
Click to expand...
Click to collapse
Ah I get it now, in which case I would be tempted to go to an Indian 4.1.2 firmware through ODIN and the update through OTA if that's possible. That would reduce the chase of stuffing up your EFS by using an official Samsung update procedure.
Hey Guys.
Once i tried to downgrade my Galaxy S6 Edge SM-G925F from Marshmallow to Lollipop with odin, but it failed and i had a brick. I tried different Versions of Odin and with much luck i fixed my Phone. But now i am insecure and hope to get help from you. I installed latest Smart Switch Version. What do i have to do to downgrade without bricking my Device?
Sconny said:
Hey Guys.
Once i tried to downgrade my Galaxy S6 Edge SM-G925F from Marshmallow to Lollipop with odin, but it failed and i had a brick. I tried different Versions of Odin and with much luck i fixed my Phone. But now i am insecure and hope to get help from you. I installed latest Smart Switch Version. What do i have to do to downgrade without bricking my Device?
Click to expand...
Click to collapse
Its not possible to downgrade sorry.
callumbr1 said:
Its not possible to downgrade sorry.
Click to expand...
Click to collapse
Oh.. But if i root and Flash twrp on My device, is it possible to flash a 5.1.1 Based Rom without any risk of Brick?
Nope
Sconny said:
Oh.. But if i root and Flash twrp on My device, is it possible to flash a 5.1.1 Based Rom without any risk of Brick?
Click to expand...
Click to collapse
Still not possible. Your stuck on MM unfortunately
callumbr1 said:
Still not possible. Your stuck on MM unfortunately
Click to expand...
Click to collapse
Too bad it does not work, but thanks for your help!
Sconny said:
Too bad it does not work, but thanks for your help!
Click to expand...
Click to collapse
No problem
Sconny said:
Hey Guys.
Once i tried to downgrade my Galaxy S6 Edge SM-G925F from Marshmallow to Lollipop with odin, but it failed and i had a brick. I tried different Versions of Odin and with much luck i fixed my Phone. But now i am insecure and hope to get help from you. I installed latest Smart Switch Version. What do i have to do to downgrade without bricking my Device?
Click to expand...
Click to collapse
Only possible when flashing 5.1.1 custom rom via recovery, but you will lose your imei, BUT you can backup your imei and after flashing new rom restore it.
RubbaBand said:
Only possible when flashing 5.1.1 custom rom via recovery, but you will lose your imei, BUT you can backup your imei and after flashing new rom restore it.
Click to expand...
Click to collapse
Is There an Option to restore imei
Sconny said:
Is There an Option to restore imei
Click to expand...
Click to collapse
Yes before you proceed you will need to install a "custom recovery" (Search about it if you dont know what it is)
Go to recovery like you want to format but instead go to "Backup & Restore" and select backup and then select "efs" which is IMEI.
After flashing a custom rom and after the first boot you will notice that there is no signal, so go to recovery and select to restore efs.
I recommend you to backup efs to ext sd card.
This will void your warranty, even downgrading it self will void it.
Goodluck!
callumbr1 said:
Still not possible. Your stuck on MM unfortunately
Click to expand...
Click to collapse
RubbaBand said:
Yes before you proceed you will need to install a "custom recovery" (Search about it if you dont know what it is)
Go to recovery like you want to format but instead go to "Backup & Restore" and select backup and then select "efs" which is IMEI.
After flashing a custom rom and after the first boot you will notice that there is no signal, so go to recovery and select to restore efs.
I recommend you to backup efs to ext sd card.
This will void your warranty, even downgrading it self will void it.
Goodluck!
Click to expand...
Click to collapse
Okay good to know. Thanks
hm i don´t know why i could downgrade from the first OTA release of MM back to LP??
i used MM for 3 days and then i flashed back to 5.1.1 without any trouble?!?
used Odin and Stock 5.1.1 fw
poci44 said:
hm i don´t know why i could downgrade from the first OTA release of MM back to LP??
i used MM for 3 days and then i flashed back to 5.1.1 without any trouble?!?
used Odin and Stock 5.1.1 fw
Click to expand...
Click to collapse
Any firmware 4DPG1 or above can not be downgraded. Im guessing before you was on U3DPAD or lower which can be downgraded. The first MM builds could be downgraded. But any 4xxxx can not
ah ok....
then i downgraded fast enough
my main reason of downgrade:
in MM it is not possible to change the font with HiFont App....!!!
i see other people saying that it's possible.
but i have one of the latest builds so, in your opinion , it is impossible for me to downgrade.
but are you sure? i can't believe that, i want absolutely a solution, i am searching it from so many time, please help
cescof said:
i see other people saying that it's possible.
but i have one of the latest builds so, in your opinion , it is impossible for me to downgrade.
but are you sure? i can't believe that, i want absolutely a solution, i am searching it from so many time, please help
Click to expand...
Click to collapse
What build number are you in? It is impossible to downgrade from a late build 4xxxx. I have tried absolutely everything. The only way is to flash a nandroid backup but even then you will lose imei. You can always back up efs and restore but its not always as straight forward to restore it. You would also need to flash a new bootloader and modem.
Did you make a nandroid backup of your previous firmware? If not then you cant try that.
The only other way you can try is to flash a 5.1.1 custom rom. Again you will lose imei. So efs backup is important. You would also need to flash BL and modem again.
There are roms based on lollipop which is a much safer way to revert back, try one of them.
Overall i wouldnt try it bit its up to you. If you do and you find a way to do it let me know.
callumbr1 said:
What build number are you in? It is impossible to downgrade from a late build 4xxxx. I have tried absolutely everything. The only way is to flash a nandroid backup but even then you will lose imei. You can always back up efs and restore but its not always as straight forward to restore it. You would also need to flash a new bootloader and modem.
Did you make a nandroid backup of your previous firmware? If not then you cant try that.
The only other way you can try is to flash a 5.1.1 custom rom. Again you will lose imei. So efs backup is important. You would also need to flash BL and modem again.
There are roms based on lollipop which is a much safer way to revert back, try one of them.
Overall i wouldnt try it bit its up to you. If you do and you find a way to do it let me know.
Click to expand...
Click to collapse
I did all yoy suggested, but nothing to do, phone stucks at samsung galaxy logo...
cescof said:
I did all yoy suggested, but nothing to do, phone stucks at samsung galaxy logo...
Click to expand...
Click to collapse
You cant downgrade after 4xxxx firmware mate. After updated bootloader your stuck on mm.
There are ROMs based on 5.1.1. But because you flashed 4xxxx firmware you cant downgrade. All lollipop firmwares are 3xxxx
callumbr1 said:
You cant downgrade after 4xxxx firmware mate. After updated bootloader your stuck on mm.
There are ROMs based on 5.1.1. But because you flashed 4xxxx firmware you cant downgrade. All lollipop firmwares are 3xxxx
Click to expand...
Click to collapse
You said there was 2 ways to do this downgrade, i did them, but they didn't work
cescof said:
You said there was 2 ways to do this downgrade, i did them, but they didn't work
Click to expand...
Click to collapse
I said the second way was to try to flash a 5.1.1 custom rom. But you would lose imei and theres no guarantee it would work. Its been reported that once you upgrade to 4xxxx firmware its impossible to downgrade
I have an S6 Edge G925F phone, witch have Android 5.1.1
In order to update it, I downloaded latest firmware with Android 6.0.1 for my country from samfirmware.com
Used Odin to do the upgrade and everything was fine
After restart, no network only!
My IMEI changed.
What can I do to fix it?
I can't add photos to show you all the details!
apashi said:
I have an S6 Edge G925F phone, witch have Android 5.1.1
In order to update it, I downloaded latest firmware with Android 6.0.1 for my country from samfirmware.com
Used Odin to do the upgrade and everything was fine
After restart, no network only!
My IMEI changed.
What can I do to fix it?
I can't add photos to show you all the details!
Click to expand...
Click to collapse
flash mm bootloader and modem then reflash the stock firmware. what exactly did you flash?
This is the ROM I'ved flashed with:
https://www.sammobile.com/firmwares/download/106392/G925FXXS4DPJ2_G925FOXX4DPH1_ROM/
After flashing I found that the phone was rooted and tha was the cause of IMEI change.
I can't flash to stock firmware cause I can't downgrade from Android 6 to Android 5.
Tell me what more information do you need in order to find the right fix for my problem?
Thanks a lot!
apashi said:
This is the ROM I'ved flashed with:
https://www.sammobile.com/firmwares/download/106392/G925FXXS4DPJ2_G925FOXX4DPH1_ROM/
After flashing I found that the phone was rooted and tha was the cause of IMEI change.
I can't flash to stock firmware cause I can't downgrade from Android 6 to Android 5.
Tell me what more information do you need in order to find the right fix for my problem?
Thanks a lot!
Click to expand...
Click to collapse
Flash this and tell me how you get on
https://www.sammobile.com/firmwares/download/106963/G925FXXS4DPJ2_G925FBTU4DPH1_BTU/
You can not downgrade. So flash this mm firmware with updated bootloader and modem
I've done flashing that ROM, but the problem is steel there!
I don't know what mm stands for?
Shall I try anything else now?
apashi said:
I've done flashing that ROM, but the problem is steel there!
I don't know what mm stands for?
Shall I try anything else now?
Click to expand...
Click to collapse
MM just stands for marshmallow. Have you tried a simple reset network settings?
Go on settings, backup and reset >reset network settings. Then reboot. If not working try change the network to gsm.
Done that, but nothing changed!
Some say that I have to rewrite the RF CAL files, recalibrate the radio part.
Using code *#0011# I get:
IMEI STATUS : NG
apashi said:
Done that, but nothing changed!
Some say that I have to rewrite the RF CAL files, recalibrate the radio part.
Using code *#0011# I get:
IMEI STATUS : NG
Click to expand...
Click to collapse
Corrupt efs files is what this is. To be honest it's very hard to fix, I'm yet to know anybody to successfully fix it. Not sure what to suggest other than try another stock ROM.
you should have made an efs backup and now you have got yourself in a world of trouble
Hi all,
I want to downgrade from G965FXXUAETG3 to G965FXXS7DTB1 because this modem is not supported by chimeratool. Please let me know any possibility by any means.
Regards
hainguyenthao said:
No way to downgrade, but why u want to ? do u need patch cert or what ?
Click to expand...
Click to collapse
I want to change IMEI and patch cert with chimera tool but current modem is unsupported so want to go back to supported modem which is on 8th binary else my lovely phone is unusable.
Any suggestion related to patch cert?
I got a customer who wants to downgrade from Android 10 to 8. I know Samsung has anti-downgrade protection and you can't flash older firmware using Odin.
What about rooting the phone first though and flashing the Android 8 firmware using TWRP? Wouldn't that work?
patr1xcore said:
I got a customer who wants to downgrade from Android 10 to 8. I know Samsung has anti-downgrade protection and you can't flash older firmware using Odin.
What about rooting the phone first though and flashing the Android 8 firmware using TWRP? Wouldn't that work?
Click to expand...
Click to collapse
My phone is already rooted and do you have any guide how can I flash complete firmware through twrp with bootloader. Actual problem is bootloader which can't initialize previous version of modem. I have downgraded modem but it does not pick IMEI.
patr1xcore said:
I got a customer who wants to downgrade from Android 10 to 8. I know Samsung has anti-downgrade protection and you can't flash older firmware using Odin.
What about rooting the phone first though and flashing the Android 8 firmware using TWRP? Wouldn't that work?
Click to expand...
Click to collapse
You'd have to flash system, vendor and a kernel that can run Android 8. Just flashing the firmware straight up won't work
ShaDisNX255 said:
You'd have to flash system, vendor and a kernel that can run Android 8. Just flashing the firmware straight up won't work
Click to expand...
Click to collapse
Is it possible? I've never done that.
patr1xcore said:
Is it possible? I've never done that.
Click to expand...
Click to collapse
I mean, I've done it on other Samsung phones, yes. Updated officially to Pie and then flashed an Oreo ROM that includes system, vendor and kernel images and it runs fine.
ShaDisNX255 said:
I mean, I've done it on other Samsung phones, yes. Updated officially to Pie and then flashed an Oreo ROM that includes system, vendor and kernel images and it runs fine.
Click to expand...
Click to collapse
How you have done it? Samsung boot loader won't allow you to downgrade !
galliard said:
How you have done it? Samsung boot loader won't allow you to downgrade !
Click to expand...
Click to collapse
I don't need to downgrade bootloader, just need to flash the ROM which includes system, vendor and a working kernel.
I'm speaking strictly about running Android 8, not downgrading. So this method of downgrading to Oreo probably won't help you on your problem
Can we do it with firmware combination file or eng modem?
I install alexndr stock oreo rom from android file host.But i see that CSC is from east europe and i am from west europe(Croatia).I cant get the mobile data to work and the IMEI is empty i tried to install older modem and the latest modem but doesent work.What should i do?
IZIPIZI135 said:
I install alexndr stock oreo rom from android file host.But i see that CSC is from east europe and i am from west europe(Croatia).I cant get the mobile data to work and the IMEI is empty i tried to install older modem and the latest modem but doesent work.What should i do?
Click to expand...
Click to collapse
You posted in wrong thread, however flash complete firmware from odin and then do customization.
galliard said:
You posted in wrong thread, however flash complete firmware from odin and then do customization.
Click to expand...
Click to collapse
what firmware do i flash?
Anybody please tell me that can I downgrade with combination firmware?
galliard said:
Anybody please tell me that can I downgrade with combination firmware?
Click to expand...
Click to collapse
I guess we both having same issue. I upgraded to UAETG3 and the mobile signals were gone. IMEI status is 'NG' and it says emergency calls only. The binary of aforesaid update is higher and it won't let me downgrade. Have you found a solution?
matrixology said:
I guess we both having same issue. I upgraded to UAETG3 and the mobile signals were gone. IMEI status is 'NG' and it says emergency calls only. The binary of aforesaid update is higher and it won't let me downgrade. Have you found a solution?
Click to expand...
Click to collapse
Try to flash complete firmware from odin and if not then your efs is corrupted !
I think combination file might downgrade with re partition
Any information how to downgrade modem and bootloader?