Hey guys! I have a query...
Now due to bad battery life since MJ7 firmware, I am looking for any possible way to downgrade back to MI5.
And I know that flashing MI5 in ODIN will fail because i have new bootloader and Warranty bit = 1 in download mode already.
However, i still have the nandroid backup of my MI5 ROM and before i flashed MJ6 in Odin that brought about new bootloader.
I also have EFS backup i made when I was on MI5 ROM back then as i know that modem will fail to downgrade and i will lose IMEI.
So the question, is it possible to restore my MI5 nandroid Successfully? Boot into phone and then Restore my EFS?
Or will there be something that stops this from working and likely cause a brick?
stanley08 said:
Hey guys! I have a query...
Now due to bad battery life since MJ7 firmware, I am looking for any possible way to downgrade back to MI5.
And I know that flashing MI5 in ODIN will fail because i have new bootloader and Warranty bit = 1 in download mode already.
However, i still have the nandroid backup of my MI5 ROM and before i flashed MJ6 in Odin that brought about new bootloader.
I also have EFS backup i made when I was on MI5 ROM back then as i know that modem will fail to downgrade and i will lose IMEI.
So the question, is it possible to restore my MI5 nandroid Successfully? Boot into phone and then Restore my EFS?
Or will there be something that stops this from working and likely cause a brick?
Click to expand...
Click to collapse
id say it would fail. but likely be a soft "brick"
gazeddy said:
id say it would fail. but likely be a soft "brick"
Click to expand...
Click to collapse
Okay. Any other opinions?
The Nandroid backup won't overwrite the new bootloader, and will just error out. - you are stuck with the new bootload I'm afraid man.
EDIT: yes softbrick is likely.
radicalisto said:
The Nandroid backup won't overwrite the new bootloader, and will just error out. - you are stuck with the new bootload I'm afraid man.
EDIT: yes softbrick is likely.
Click to expand...
Click to collapse
Does nandroid backup bootloader? I thought it was just kernel, cache, system, data and recovery.
Not sure if it does or not, however bootloader supercedes firmware overwrites/backup etc.
Related
Hi there,
I'm just wondering why my phone is losing its imei (or rather, its changing to the generic 0049xxx) after flashing the latest MG5 firmwares (I tried three different versions now). I first came from MG1, then flashed the MG9 when it came out. Now, when I flash any other firmware, my imei gets f'ed up.
I havent rooted my phone yet, I'm just flashing firmwares I downloaded from sammobile. Is it just because of this MG5 firmwares not being compatible? Will I still be able to flash newer firmwares when it goes out?
Thanks in advance, cheers!
Bump...
tclocki said:
Bump...
Click to expand...
Click to collapse
I have downloaded the August version for the united arab emirates , it seems to see my imei , but whenever i lock the phone (or screen idle closes the display) 90% of times phone freezes and I need to restart it.
it seems that in the latest roms samsung(for S3,S4) change the efs structure ... thats why imei gets mess if you try to change rom after.but if you change the modem with old one it may works....
Gotcha thanks!
i have the similar problem .
updated from G1 to G5 via samobile,
same problem ... no network registration
..
since i was rooted i used cutsom rom legend and crash . working fine for the moment \
but i need to solve this issue if i want go on stock
BTW i have some EFS back up folder can it help in recovering the IMEI issue
also how to CHANGE THE MODEM WITH OLD ONe ????
Hello same problem with installing firmware from MG9 to MG5, the imei resets to 0049000 something, did you find solution to it. Please reply. Thanks in advance.
mihir880 said:
i have the similar problem .
updated from G1 to G5 via samobile,
same problem ... no network registration
..
since i was rooted i used cutsom rom legend and crash . working fine for the moment \
but i need to solve this issue if i want go on stock
BTW i have some EFS back up folder can it help in recovering the IMEI issue
also how to CHANGE THE MODEM WITH OLD ONe ????
Click to expand...
Click to collapse
kunal.bodke said:
Hello same problem with installing firmware from MG9 to MG5, the imei resets to 0049000 something, did you find solution to it. Please reply. Thanks in advance.
Click to expand...
Click to collapse
who flashed the MG9 firmware had their EFS partition modified.
So in case if you have to go back to earlier firmware you will have problems with IMEI. You have to:
- Restore EFS (that is backed up before this change) or
- Flash MG9 modem which can still read the modified EFS.
see here for modem collection http://forum.xda-developers.com/showthread.php?t=2192025
samersh72 said:
who flashed the MG9 firmware had their EFS partition modified.
So in case if you have to go back to earlier firmware you will have problems with IMEI. You have to:
- Restore EFS (that is backed up before this change) or
- Flash MG9 modem which can still read the modified EFS.
see here for modem collection http://forum.xda-developers.com/showthread.php?t=2192025
Click to expand...
Click to collapse
Flashing or restoring efs backup doesnt work after flashing mg9.
You need to return to your firmware when you first get your phone out of the box with clean install and wiping everything in cwm before getting into download mode.
Then after flashing the firmware, root then restore efs backup.
Sent from my GT-I9500 using xda app-developers app
marc_ecko28 said:
Flashing or restoring efs backup doesnt work after flashing mg9.
You need to return to your firmware when you first get your phone out of the box with clean install and wiping everything in cwm before getting into download mode.
Then after flashing the firmware, root then restore efs backup.
Sent from my GT-I9500 using xda app-developers app
Click to expand...
Click to collapse
so what is new
once you flashed the MG9, the efs partition format has been changed, so if you downgrade (regardless if to the original stock) you must restore the efs partition from the backup you made or just flash MG9 modem.
samersh72 said:
so what is new
once you flashed the MG9, the efs partition format has been changed, so if you downgrade (regardless if to the original stock) you must restore the efs partition from the backup you made or just flash MG9 modem.
Click to expand...
Click to collapse
Guys, If I flash with MG5 firmware and then flash with modem of MG9? Will it work ?
Hello,
I'm on one of the old crash lollipop roms with a kitkat bootloader, baseband, etc. How do I change modem and bootloader to lollipop?
Thanks
you just can't. nobody has ever done it before. maybe in a year or so...
zeroundead said:
Hello,
I'm on one of the old crash lollipop roms with a kitkat bootloader, baseband, etc. How do I change modem and bootloader to lollipop?
Thanks
Click to expand...
Click to collapse
Go to sammobile.com and download the latest firmware for your phone. Use Odin to flash it.
If you are rooted and have custom recovery like TWRP - do a nandroid first than once the stock has completed you can re-root, flash the custom recovery again and then restore system and data from the nandroid and you should be back to normal but with updated BL and modem.
Hi, guys!
There is on guy on 4pda that has bootloader with the following in Download mode:
Code:
Odin mode
Product Name: SM-N910H
Current Binary: Samsung official
System Status: Custom
Reactivation Lock (KK): OFF
Secure Download: enabled
Knox warranty void: 0
AP SWAEV: 0 (test devise)
I believe that this is test device, and accordingly to Note 3 story it can give a possibility to reset Knox Warranty counter. Could some one of gurus please advice how we can backup and share his bootloader?
Thanks a lot in adnance!
This may help to backup sboot and param. And maybe other can restore with it. But we must be calm. And wait for advanced help.
Wanam tool
https://play.google.com/store/apps/details?id=ma.wanam.partitions
kadiremrah said:
This may help to backup sboot and param. And maybe other can restore with it. But we must be calm. And wait for advanced help.
Wanam tool
https://play.google.com/store/apps/details?id=ma.wanam.partitions
Click to expand...
Click to collapse
The only problem - it requires root. And I don't know yet if that guy has a root. Flashing root with Odin may change warranty bit. Any other idea?
Re flashing stock ROM will replace original bootloader.
I strongly NOT in favor of making backup of bootloader and restore using anything other than Odin. In world of flashing if anything is RISKY it's only and one bootloader. Also I don't believe any method of restoring bootloader other than Odin will work anymore on newer device. Either it will make no effect OR IT CAN BRICK device.
Also If anyone have boot loader with re engineering which reset knox warranty - I do not recommend to try UNLESS you must required to do it.
Say for example your device have something wrong and you needs to send to service station - still you can flash that bootloader if required isn't? Only condition when you cant flash bootloader is
-Faulty USB pin - Who cares for warranty ? It does cost couple of $ why we should take risk for complete device?
-Hard bricked with unable to boot to download mode - How samsung service station can find your Knox status in this condition?
So Flash such bootloader only you really need it when required with own risk.
Thank you very much for advice.
But on Note 3 there was procedure to restore Knox warranty bit exactly by flashing test bootloader with Odin. I just want not to loose possibility to have a solution... Of course, I will think twice before flashing that BL, but at lease we will have some data to explore! Isn't it?
Obviously it's marvelous thing to have possibility to reset knox but only thing I suggest is to use as only real needy case not for fun /experiment.
Sent from my SM-N910G using xda premium
So - any idea on how to copy bootloader?
I furtunately found this gide:
http://forum.xda-developers.com/note-4-verizon/general/guide-vzw-note-4-backup-developer-t2962911
I hope it will help!
Zer0r said:
So - any idea on how to copy bootloader?
Click to expand...
Click to collapse
But why you need to copy bootloader? You can get it from stock ROM file too. simply unzip stock ROM tar.md5 and you will have it.
BTW exynos version requires only one file for bootloader sboot.bin
dr.ketan said:
But why you need to copy bootloader? You can get it from stock ROM file too. simply unzip stock ROM tar.md5 and you will have it.
BTW exynos version requires only one file for bootloader sboot.bin
Click to expand...
Click to collapse
I need to copy bootloader from Developer Edition phone. That bootloader is unlocked. I have access to one of such phones, that is why all thiss mess
Oh ok got it now.
Sent from my SM-N910G using xda premium
So - here is bootloader with param partition. If anybody wants to explore them - you are welcome!
This bootloader is from Test Devirce. It doesn't locked, so any unoficcial actions wit device doesn't affect on Knox Warranty Void bit, it is checked.
Who is going to test it? :laugh:
Is it possible to reset N910C device? Testers waiting for you??
megatooth said:
Who is going to test it? :laugh:
Click to expand...
Click to collapse
Other file should be used for testing, not that. That file can not be flashed via Odin as a bootloader.
I will not post it, because it is a bit risky. And there some backup preparation should be done before flashing. But anyone who wants to be a volonteer - welcome in PM, please.
Well, unfortunately it does nothing. I tested and flashed it on my own device - bootloader has changed, but not to (test device) status, and the Warranty bit was not resetted to 0... But we tried!
I want to thank a man who helped me a lot - @A.S._id.
On Note 3 prosedure was.
* Flash sboot an param
* Reboot download mode again
* Flash stock rom of your region from odin
* Factory reset on stock recovery
* Boot system
* Again download mode
* Re flash stock rom
* Factory reset and boot
This was working on note 3.
Zer0r said:
Well, unfortunately it does nothing. I tested and flashed it on my own device - bootloader has changed, but not to (test device) status, and the Warranty bit was not resetted to 0... But we tried!
I want to thank a man who helped me a lot - @A.S._id.
Click to expand...
Click to collapse
Any news? Sorry for spamming. @Zer0r Did you tried to reflash stock ROM and as well reset factory as the same procedures with Note 3? Post some images from successfull changing Bootloader please. I'm curious to that bootloader too. Mine is 910C.
tuannghia1985 said:
Any news? Sorry for spamming. @Zer0r Did you tried to reflash stock ROM and as well reset factory as the same procedures with Note 3? Post some images from successfull changing Bootloader please. I'm curious to that bootloader too. Mine is 910C.
Click to expand...
Click to collapse
No news, bootloader from test device, which, as we thought clearing warranty bit, didn't clearing...
Here is bootloaders for flashing via odin, one from test device, and different from realise device, you can to try flash them and make sure...
https://yadi.sk/d/IUpILBpjh2JKW
p.s.
as it turned out - the test device has ceased to be a test, after he flashed stock firmware
http://cs3-3.4pda.to/6337019/%C1%E5...d4b8c000000007ac5697c47447c2fe32cb87a6142b1cb
Any update?
Sorry guys this is maybe a dumb question but I cannot find a real reply to my doubts.
I have a Galaxy S4 i9505 with old bootloader knox free xxubmf8. I would like to backup my bootloader just in case I would try to change it with some other still knox free BL, for testing reasons.
I made a backup with nandroid , choosing the boot partition during the backup. Is this enough?
Is there a way to create an Odin backup of the bootloader or somewhere where I could download this bootloader release alredy packed?
I have also downloaded the stock xxubmf8 firmware but I don't know which file inside the firmware to keep (probably aboot, sbl1, sbl2, sbl3, rpm and tz)
Many thanks!
I don't think you can. There is nothing different on a knox bootloader, other than knox itself.
Hey GDReaper, sorry for the late thanks! So I won't bother trying to change the bootloader.
Just in case you know and for my only knowledge, what does the nandroid backup when you choose to save the boot partition?
It will backup your kernel.
A few nights ago, I flashed CM14 with Nougat on my SM-N910C. Unfortunately, ever since the flash finished, my phone stopped reading any SIM cards. The baseband and IMEI both read "unknown" in the settings. Is there any way to return these? I'm okay with anything as long as it ends up making my phone usable again.
I'm not an expert at this, so please explain stuff your help is appreciated, thanks!
Bump! Please help me out!! Any tips appreciated
cathcart23 said:
A few nights ago, I flashed CM14 with Nougat on my SM-N910C. Unfortunately, ever since the flash finished, my phone stopped reading any SIM cards. The baseband and IMEI both read "unknown" in the settings. Is there any way to return these? I'm okay with anything as long as it ends up making my phone usable again.
I'm not an expert at this, so please explain stuff your help is appreciated, thanks!
Click to expand...
Click to collapse
Did you made efs backup from twrp before flashing rom ?
If you have efs back up then restore it.
If not then Try flash stock 6.0.1 firmware via odin and do factory reset from stock recovery after flash.
Trex888 said:
Did you made efs backup from twrp before flashing rom ?
If you have efs back up then restore it.
If not then Try flash stock 6.0.1 firmware via odin and do factory reset from stock recovery after flash.
Click to expand...
Click to collapse
The stock ROM flash worked!! Thank you