How to flash back old bootloader my i9505 now na5 4.4.2 new bootloader but i want 4.3
I'm trying to flash 4.3 preroted but gives an error ?
nomenore said:
How to flash back old bootloader my i9505 now na5 4.4.2 new bootloader but i want 4.3
I'm trying to flash 4.3 preroted but gives an error ?
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pretty sure that you cant.
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i just gave a thought to downgrade process.
i want yo ask the devs that can we downgrade s4 from 4.4.2 to 4.3 after changing the boot.img as i think flashing a boot.img will change the bootloader. moreover i was thinking to exctract a 4.3 firmware's boot.img n flash it.
will it hrlp ? will it work ?
i font care for warranty boid.i just need 4.3 back.
ronak.chawla30 said:
i just gave a thought to downgrade process.
i want yo ask the devs that can we downgrade s4 from 4.4.2 to 4.3 after changing the boot.img as i think flashing a boot.img will change the bootloader. moreover i was thinking to exctract a 4.3 firmware's boot.img n flash it.
will it hrlp ? will it work ?
i font care for warranty boid.i just need 4.3 back.
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You can no longer downgrade your phone to 4.3 after flashing 4.4.2 firmware from Samsung mate but you can still downgrade your phone by flashing a custom 4.3 rom
ronak.chawla30 said:
i just gave a thought to downgrade process.
i want yo ask the devs that can we downgrade s4 from 4.4.2 to 4.3 after changing the boot.img as i think flashing a boot.img will change the bootloader. moreover i was thinking to exctract a 4.3 firmware's boot.img n flash it.
will it hrlp ? will it work ?
i font care for warranty boid.i just need 4.3 back.
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Click to collapse
Are you on a 4.4.2 stock or custom ROM? The safest way to go seems to be flashing any 4.3 custom ROM via Odin or custom recovery.
Hello, i am currently at 4.2.2 firmware (I9505XXUBMG4) and i have a EFS backup and a nandroid backup. i wish to upgrade my phone to 4.4 but i not sure because maybe if i do not like the 4.4 i will not be able to downgrade to 4.2.
can i go back to 4.2 from 4.4?? i don't care about the warranty or the knox feature
fdlm82 said:
Hello, i am currently at 4.2.2 firmware (I9505XXUBMG4) and i have a EFS backup and a nandroid backup. i wish to upgrade my phone to 4.4 but i not sure because maybe if i do not like the 4.4 i will not be able to downgrade to 4.2.
can i go back to 4.2 from 4.4?? i don't care about the warranty or the knox feature
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Hi ,
Once you upgrade your bootloader is not possible to go back to 4..2.2 (or 4.3)
You upgrade your bootloader if:
Flash a stock rom 4.3 and higher
you do not upgrade your bootloader if:
root , install custom recovery and flash a custom rom , there are a few good rom based in samsung stock 4.3 and 4.4.2 you can try them see if you like them and if you don't you can always flash stock 4.2.2 and be as you were
Ok, so essensialy i can't downgrade the bootloader to 4.2.
but a official 4.2.2 firmware (without knox) will work on a 4.4 bootloader ??? (again i don't care about knox working or not)
fdlm82 said:
Ok, so essensialy i can't downgrade the bootloader to 4.2.
but a official 4.2.2 firmware (without knox) will work on a 4.4 bootloader ??? (again i don't care about knox working or not)
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Thats downgrading. So no it wont work.
Lennyz1988 said:
Thats downgrading. So no it wont work.
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Yes i know is downgrading, that is the main question of this
MAX 404 said:
Hi ,
Once you upgrade your bootloader is not possible to go back to 4..2.2 (or 4.3)
You upgrade your bootloader if:
Flash a stock rom 4.3 and higher
you do not upgrade your bootloader if:
root , install custom recovery and flash a custom rom , there are a few good rom based in samsung stock 4.3 and 4.4.2 you can try them see if you like them and if you don't you can always flash stock 4.2.2 and be as you were
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Ok, so essensialy i can't downgrade the bootloader to 4.2.
but a official 4.2.2 firmware (without knox) will work on a 4.4 bootloader ??? (again i don't care about knox working or not)
fdlm82 said:
Ok, so essensialy i can't downgrade the bootloader to 4.2.
but a official 4.2.2 firmware (without knox) will work on a 4.4 bootloader ??? (again i don't care about knox working or not)
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You are asking the same question again. It's not possible.
Lennyz1988 said:
You are asking the same question again. It's not possible.
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It has been done to 4.3 in this thread: http://forum.xda-developers.com/showthread.php?t=2744061
they have flashed a 4.3 ROM without bootloader over a 4.4 ROM so the result is a 4.3 rom with a 4.4 bootloader
fdlm82 said:
Ok, so essensialy i can't downgrade the bootloader to 4.2.
but a official 4.2.2 firmware (without knox) will work on a 4.4 bootloader ??? (again i don't care about knox working or not)
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Click to collapse
HI ,
Mate if you flash with Odin or OTA (kies) you will change the bootloader , ok? so once you have a 4..4 bootloader installed there is no way to install back a 4,2,2 stock ( official ) firmware , 4.4.2 official firmware includes 4.4.2 bootloader and flashing an older bootloader than the one you have is not possible (yet)
your options are:
4.2.2 bootloader
stay there do nothing
Upgrade to official 4.4 and not be able to downgrade to 4.2.2 official
root , install CWM and install any custom rom you want ( 4.2.2 , 4.3 or 4.4.2 and 4.4.4 ) and if you do not like any of them go back to official 4.2.2
Once you upgrade to official 4.4.2 there is no way to go back to official 4.2.2 , the only way to go back to 4.2.2 would be with a custom rom
MAX 404 said:
HI ,
Mate if you flash with Odin or OTA (kies) you will change the bootloader , ok? so once you have a 4..4 bootloader installed there is no way to install back a 4,2,2 stock ( official ) firmware , 4.4.2 official firmware includes 4.4.2 bootloader and flashing an older bootloader than the one you have is not possible (yet)
your options are:
4.2.2 bootloader
stay there do nothing
Upgrade to official 4.4 and not be able to downgrade to 4.2.2 official
root , install CWM and install any custom rom you want ( 4.2.2 , 4.3 or 4.4.2 and 4.4.4 ) and if you do not like any of them go back to official 4.2.2
Once you upgrade to official 4.4.2 there is no way to go back to official 4.2.2 , the only way to go back to 4.2.2 would be with a custom rom
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If i understood right, you are saying that can be done if i flash a custom rom as intermediate step between official 4.4 and official 4.2 ??
fdlm82 said:
If i understood right, you are saying that can be done if i flash a custom rom as intermediate step between official 4.4 and official 4.2 ??
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No . I did not say that
Once you are in an official 4.4.2 firmware , the only way to use a 4.2.2 rom would be by flashing an un official 4.2.2 custom rom
MAX 404 said:
No . I did not say that
Once you are in an official 4.4.2 firmware , the only way to use a 4.2.2 rom would be by flashing an un official 4.2.2 custom rom
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Ok, thanks for the info.
in the following this thread they have installed a 4.3 rom over a 4.4 bootloader: http://forum.xda-developers.com/showthread.php?t=2744061
maybe someone find a similar way to install a 4.2....
fdlm82 said:
Ok, thanks for the info.
in the following this thread they have installed a 4.3 rom over a 4.4 bootloader: http://forum.xda-developers.com/showthread.php?t=2744061
maybe someone find a similar way to install a 4.2....
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Ok mate ,
Good luck .
Is it possible to have a 4.3 bootloader but run a 4.4.2 rom (without BL) on a I9505 ?
Only ask as I don't want to update system and get stuck in 4.4.2 with no way of going back should I have issues (battery etc).
Ideally would like something stock or near stock deodexed
Cheers
Azriaphale said:
Is it possible to have a 4.3 bootloader but run a 4.4.2 rom (without BL) on a I9505 ?
Only ask as I don't want to update system and get stuck in 4.4.2 with no way of going back should I have issues (battery etc).
Ideally would like something stock or near stock deodexed
Cheers
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Click to collapse
Hi ,
Yes that is possible , of course we are talking about a CUSTOM 4.4.2 rom
There are options available to fit your needs in the I9505 Android development section
Sorry if this is a noob question but will running an old bootloader (say 4.4.2 NA6) with a newer official rom (like 4.4.2 NE4) allow me to downgrade using Mobile Odin Pro?
And if thats the case, are there likely to be any performance issues with running an old bootloader with a new firmware?
KitKat boatloader works on all KitKat roms. Is good to update to latest boatloader to match the rom but no biggie if not.
ddogishere said:
KitKat boatloader works on all KitKat roms. Is good to update to latest boatloader to match the rom but no biggie if not.
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so then will i be able to downgrade from newer roms to older roms with mobile odin (seeing as it doesnt touch the bootloader) if i have the oldest KitKat bootloader installed?
you can move to all 4.4.2 rom you want but NO downgrade to 4.3 rom
I'm on NA6 BL with NG1 rom
rayman95 said:
you can move to all 4.4.2 rom you want but NO downgrade to 4.3 rom
I'm on NA6 BL with NG1 rom
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How is your battery life?
adb7 said:
How is your battery life?
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good but actually I'm on liquidsmooth rom
but if you want to go to NG1 base you should flash NG1 modem to have good combination specially for battery
Hey guys, my question is there:
Its possible to downgrade from 4.4.2 to 4.2.2 ?
I have been reading alot of threads with similar question but i gives to many answer.
Im on a rooted 4.4.2 and i will just back to 4.2.2 because i will a !!completely!! Knox free rom and bootloader.
I dont care about the warrenty, my is run out.
I dont will not only a downgraded rom but also a downgraded bootloader.
When someone have trying a to downgrade from 4.4.2 to 4.2.2 please post here the result.
When a downgrade to 4.4.2 is not possible than which is the lowest firmware which i can flash?
Please try to keep the thread clear and give a usefull answer. Thank you guys
And please dont kill me for my english :good:
Once the bootloader has been upgraded to a Knox-enabled version, you cannot downgrade it. The ROM can be downgraded regardless of the bootloader, but running a Knox-free ROM with a Knox-enabled bootloader will result in a "Kernel is not SEAndroid Enforcing" message to appear on the splash screen every time the device is rebooted.
Okay too Bad...
A question more, i have been reading that a downgrade (Rom+Bootloader) is possible to 4.3, because there have the same Bootloader but just less aggressiv. Is that true?
When yes you can share a stock samsung rom 4.3 without knox?
Thank you for the answer
Sent from my GT-I9505 using XDA Free mobile app
You can downgrade with a custom 4.2.2 rom. You just need to look for one.
Okay that i understand but can i downgrade the Bootloader to 4.3? Because there is similar to our one.
Sent from my GT-I9505 using XDA Free mobile app
Can we use official ROM
Can we downgrade without using Custom ROM?
If we unpack Official tar ROM and remove the bootloader and modem of it and then repack it to tar.
Can that downgrade the Android version from 4.4.2 to 4.2.2?
Or it is not working?
Andro-Man said:
Can we downgrade without using Custom ROM?
If we unpack Official tar ROM and remove the bootloader and modem of it and then repack it to tar.
Can that downgrade the Android version from 4.4.2 to 4.2.2?
Or it is not working?
Click to expand...
Click to collapse
It's possible to downgrade to stock 4.2.2 but a custom kernel such as KT-SGS4 will probably be needed to get the WiFi working.
Simply reinstalling the 4.2.2 modem files using Odin should be sufficient to get the WiFi working. No need of a custom kernel. It is also possible to downgrade the ROM without going through the routine of unpacking and repacking the ROM. Simply flash it through Odin, although you'd need to flash the modem files a second time to get the radios fully functional, as previously mentioned. Just be aware that the bootloader will not change, so every time you boot the 4.2.2 ROM with the Knox-enabled bootloader you will get a message on the splash screen about the kernel not being in enforcing mode.
I have trying this:
I take a orginal XXUBMF8 4.2.2 delete inside the zip bootloader and some other files repack back to .tar
Flash it all fine but then the error, the software is not authorized and on the top secure fail: kernel.
I tried flash a custom 4.2.2 kernel through odin but the same result.
My DL Modus look so: https://dl.dropboxusercontent.com/u/93311676/DSC_0014.JPG
Now i get back to 4.4.2 GNG8