Bootloader - Galaxy S 4 Q&A, Help & Troubleshooting

Anybody Having 4.3 Bootloader Pls Give It

sjadhav252 said:
Anybody Having 4.3 Bootloader Pls Give It
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For what?

I have downgrade from 4.4.2 to 4.2.2 bt i cant upgrade to 4.3

sjadhav252 said:
I have downgrade from 4.4.2 to 4.2.2 bt i cant upgrade to 4.3
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Click to collapse
Why all the people is obsesed in downgrade? This only will void ur warranty KNOX 0x1. Having new bootloader (android 4.4.2) and flashing old bootloader ****s ur phone, semibrick or future problems (battery cuts, sound lost, calls problems, no network registered). The unique solution u have is flash again 4.4.2. Im tired of write this pffff

Related

[Q] Cannot downgrade from 4.3 to 4.2.2 - Galaxy S4 i9500

After upgraded my S4 i9500 from 4.2.2 to 4.3 XUEMJ5 via Kies, I'm having a lot of troubles regarding battery drain and overheating.
I came to the Samsung Services Center yesterday and asked them to downgrade my device back to 4.2.2, but their answer is "Sorry, we cannot do it. Once upgraded to 4.3, there is no way to reverse to 4.2" ?!?!!?!?!
Is it true? Has anybody tried to downgrade your S4 from 4.3 to 4.2
Thanks for your advice!
baoduyph said:
After upgraded my S4 i9500 from 4.2.2 to 4.3 XUEMJ5 via Kies, I'm having a lot of troubles regarding battery drain and overheating.
I came to the Samsung Services Center yesterday and asked them to downgrade my device back to 4.2.2, but their answer is "Sorry, we cannot do it. Once upgraded to 4.3, there is no way to reverse to 4.2" ?!?!!?!?!
Is it true? Has anybody tried to downgrade your S4 from 4.3 to 4.2
Thanks for your advice!
Click to expand...
Click to collapse
I had the same issue. There seems to be a problem downgrading to certain 4.2.2 roms. I eventualy managed to downgrade using the South African version (I9500XXUBMH1) . After you've flashed this,you can re-flash whichever ROM you prefer.
Give it a go and let me know.
Cheers
you are you kidding
Adnan1973 said:
you are you kidding
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Click to collapse
Me? No not at all ...
UtianG said:
I had the same issue. There seems to be a problem downgrading to certain 4.2.2 roms. I eventualy managed to downgrade using the South African version (I9500XXUBMH1) . After you've flashed this,you can re-flash whichever ROM you prefer.
Give it a go and let me know.
Cheers
Click to expand...
Click to collapse
Are you really serious? So you can downgrade from 4.3 to 4.2.2 using that firmware? What does your knox say in download mode?
Lennyz1988 said:
Are you really serious? So you can downgrade from 4.3 to 4.2.2 using that firmware? What does your knox say in download mode?
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Click to collapse
Unfortunately it states:
Current Binary: Custom
System Status: Custom
Warrant Bit: 1
But it doesn't really bother me for now, until I have to send it back for repairs I guess
I'm sure the Chainfire guys will eventually be able to reset this counter as the TriangleAway is currently not supporting the GS4 I9500.
Cheers
So is there a specific way you have to flash it or do i just use odin?
Do i flash the roms back to back or what?

[Q] Need help with GT-19500

i have Galaxy S4 GT-19500 and i updated it from 4.2.2 to 4.3 now i wanna to Downgrade it to 4.2.2 the original stock i have no root no recovery please help guys !!!!
thanx:good:
U can't go back to 4.2.2 now
Joku1981 said:
U can't go back to 4.2.2 now
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Click to collapse
why i can't!!!
if there is any way even if i've to root the device???
LilbrownMeko said:
why i can't!!!
if there is any way even if i've to root the device???
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Click to collapse
You can flash stock rom 4.2.2 through odin to downgrade. You can find the rom in the forum of I9500 or on sammobile.com. But you may face problems with IMEI. Happened to me.

Downgrade

Hello,
I have a question, If I install 4.4.2 can I still downgrade to 4.3?
Thank you!
Shai38 said:
Hello,
I have a question, If I install 4.4.2 can I still downgrade to 4.3?
Thank you!
Click to expand...
Click to collapse
No, you can no longer downgrade your phone into 4.3 stock rom after flashing 4.4.2 leak..but you can still dowgrade to 4.3 Custom Rom or aosp or cm11 Have a nice day.
Sent from Hell ?
I already flashed the modem and bootloader of 4.4.2, is it still possible to go back to stock 4.3 ?
Shai38 said:
I already flashed the modem and bootloader of 4.4.2, is it still possible to go back to stock 4.3 ?
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Click to collapse
Sorry mate , you can no longer downgrade after flashing the latest Bootloader.

Downgrade SM-N900 Lolipop ?

Is it ok to downgrade from lollipop officail turkey i'll already flash bootloader
Is ok to downgrade without bricking it
Abandoned War Place said:
Is it ok to downgrade from lollipop officail turkey i'll already flash bootloader
Is ok to downgrade without bricking it
Click to expand...
Click to collapse
I just went all the way to 4.3 with no issues!
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Click to collapse
Edit: It voided knox and it has no cell service XD
Modem Issue fixed with with post #10 @ http://forum.xda-developers.com/showthread.php?t=2739274
I don't care about Knox XD

Safe downgrade from 5.1.1 to 5.0.1?[UPDATED-MM]

Hello guys,
I want to try new update but,if I upgrade to 5.1.1 can I later go back to 5.0.1(stock one)?
And any bugs on 5.1.1?I read something abot fingerprint on lockscreen?it true? "
******************************************************
We got new update for N910C,is someone try to flash last bootloader and go back to COH4 or even 5.0.?
********************************************************
Ok now with MM 6.0.1 we can back to 5.1.1(CPB3) but no to 4.4.4
Dunno can you downgrade but, i had fingerprint problem and lag after lockscreen. Full wipe and deactivating smart lock(it was activated by default) seems to solve everything for now.
Pa:it was happening on mobile data.
Yes you can downgrade from 5.1.1 to 5.0.1
I installed 5.1.1 but returns to 5.0.1 with odin without problems
miguel-rocha- said:
Yes you can downgrade from 5.1.1 to 5.0.1
I installed 5.1.1 but returns to 5.0.1 with odin without problems
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Click to collapse
How about back to KK?
miguel-rocha- said:
Yes you can downgrade from 5.1.1 to 5.0.1
I installed 5.1.1 but returns to 5.0.1 with odin without problems
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Click to collapse
how did do ? which rom did install? how did do ?
@home said:
How about back to KK?
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Click to collapse
I back to 5.0.1 not 4.4.4 I used odin and firmware 5.0.1 but comeback from lollipop to kitktat it's the same
rainmaaan said:
how did do ? which rom did install? how did do ?
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Click to collapse
I used odin and firmware N910CXXU1BOE1 [Trinidad y Tobago] afert a hard reset and it's all. I have 5.0.1 in my note 4 n910c
I guess you need to do some steps to revert back to KK , you wanna downgrade from major firmware to another not simple update like 5.1.1 to 5.0.1
be sure what u doing or you may get in bootloop or something worse.
Downgrading to 5.0.1
miguel-rocha- said:
Yes you can downgrade from 5.1.1 to 5.0.1
I installed 5.1.1 but returns to 5.0.1 with odin without problems
Click to expand...
Click to collapse
Is it true? Can I downgrade my fw to 5.0.1 from 5.1..1
Why would you want to ????
Shahid Masud said:
Is it true? Can I downgrade my fw to 5.0.1 from 5.1..1
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Click to collapse
YES (full wipe is needed)
downgrade from 5.1.1 to 5.0.1
Shahid Masud said:
Is it true? Can I downgrade my fw to 5.0.1 from 5.1..1
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Click to collapse
Don't think so.
it was said you cannot downgrade as some security fix.
samsung has put some bootloader and that will brick your phone.
Anyway guys from here can make some hope.
chanchal.shohel said:
Don't think so.
it was said you cannot downgrade as some security fix.
samsung has put some bootloader and that will brick your phone.
Anyway guys from here can make some hope.
Click to expand...
Click to collapse
Man, I downgrade without problem only need a hard reset, the phone don't brick
mjrshark said:
I guess you need to do some steps to revert back to KK , you wanna downgrade from major firmware to another not simple update like 5.1.1 to 5.0.1
be sure what u doing or you may get in bootloop or something worse.
Click to expand...
Click to collapse
No major steps. Same steps regardless of OS version.
chanchal.shohel said:
Don't think so.
it was said you cannot downgrade as some security fix.
samsung has put some bootloader and that will brick your phone.
Anyway guys from here can make some hope.
Click to expand...
Click to collapse
100% you can downgrade. Takes about 5 minutes if you already have the firmware.
@home said:
How about back to KK?
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I've managed to downgrade from lollipop to kitkat.. Have a look here. But with knox 0x1.
_mone said:
I've managed to downgrade from lollipop to kitkat.. Have a look here. But with knox 0x1.
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Click to collapse
Hm, so downgrading to 4.4.4 causes knox 0x1, but to 5.0.1 is warranty-safe?
robber95 said:
Hm, so downgrading to 4.4.4 causes knox 0x1, but to 5.0.1 is warranty-safe?
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Click to collapse
No, I don't know that. Sorry if i didn't explain properly.
I was already with knox 0x1 when I managed to downgrade to kitkat.
deleted
MMarkkk said:
yes safe :good:
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Yeah, I know it, but the question is about downgrading to KitKat It should be safe as well, but a confirmation is needed.
_mone said:
I've managed to downgrade from lollipop to kitkat.. Have a look here. But with knox 0x1.
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Click to collapse
Me too, I was rooted but found nothing great from doing so. Note 4 didn't run any better. So I had knox 1 anyhow.
5.1.1 is cool.
So yeah you can flash back to kk
@home said:
How about back to KK?
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Click to collapse
i tried to downgrade to KK which i successfully did using odin but... since lollipop is out now, it auto upgrade my note 4.

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