Downgrading - Galaxy S 5 Q&A, Help & Troubleshooting

Hi, My cell is on LP 5 but i don't like it, can i isntall any kitkat rom without flashing the kk firmware, if yes how
thx

I think that yes. I flashed on my G900F Miui based in KK and it worked on LP firmware

Lollipop Update Blocked downgrading.
It's not going to work. I think that using a nandroid backup made by somebody else should work.

Related

About downgrading with custom firmware

I had a stock untouched I9506 on LP 5.0.1 which I rooted and flashed TWRP. Can I now flash through TWRP a KitKat stock ROM?Will I have any isues?
Anyone?
Sure you can. If it doesn't work you can always revert back.

[Q]Is it possible Downgrading from Official Lollipop to Official Kitkat

as the title says... is it working if i flash official lollipop via odin and downgrade it to official kitkat.
currently running on dead x-note development.. i want to try lolipop rom but i'm afraid what if i didnt like lolipop.. will i still able to downgrade it by just flashing via odin?
i know this question is already ask a million times but all the thread that i found here is old and talk about the leaked lollipop firmware but my question here is downgrading from official lollipop to official kitkat. thank you
bhovoi said:
as the title says... is it working if i flash official lollipop via odin and downgrade it to official kitkat.
currently running on dead x-note development.. i want to try lolipop rom but i'm afraid what if i didnt like lolipop.. will i still able to downgrade it by just flashing via odin?
i know this question is already ask a million times but all the thread that i found here is old and talk about the leaked lollipop firmware but my question here is downgrading from official lollipop to official kitkat. thank you
Click to expand...
Click to collapse
Download and flash the firmware via ODIN without upload the bootloader.
Joku1981 said:
Download and flash the firmware via ODIN without upload the bootloader.
Click to expand...
Click to collapse
what do you mean without the bootloader? if i flash official lollipop firmware from sammobile i think it includes the bootloader, right?
Joku1981 said:
Download and flash the firmware via ODIN without upload the bootloader.
Click to expand...
Click to collapse
Hello,
Yes it is possible to downgrade from an official Molitor to an official kitkat (the latest).
I do it, when the flash is end and the mobile show the logo Samsung
You can put out the battery, reboot to the recovery and wipe all user data.
Before do that save all your data.
It's an official administrator from Samsung who say me do so.
Hope that can help you.
Fredox.57 said:
Hello,
Yes it is possible to downgrade from an official Molitor to an official kitkat (the latest).
I do it, when the flash is end and the mobile show the logo Samsung
You can put out the battery, reboot to the recovery and wipe all user data.
Before do that save all your data.
It's an official administrator from Samsung who say me do so.
Hope that can help you.
Click to expand...
Click to collapse
what do you mean by the kitkat (latest) because not all country have the same latest version.. like in my case my mobile is originally from KSA. and i think its not the latest kitkat out there.
Joku1981 said:
Download and flash the firmware via ODIN without upload the bootloader.
Click to expand...
Click to collapse
Isn't the bootloader required to flash the ROM?
I'm very afraid of trying stock lollipop. I was on Temasek's CM12 build but I had abysmal batterylife. This was probably not attributed to Temasek's build but rather to CM12 as a whole, so I went back to my nandroid containing Crash Rom V19 on kitkat 4.4.2 and I literally have less than 1% drain per hour with the phone idle. I love this batterylife, and I feel I'd like to try and see if stock lollipop TW will give me the same but I would like the option to go back to kitkat if it's worse. I like lollipop a lot but the promise of batterylife seems to hit and miss, makes me stay on kitkat.
I know Crash Rom has a lollipop version, but beside this, which ROM is the MOST stock with the least amount of modifications?

[N910F] Downgrade from POF2 to ANK5?

Is it possible to downgrade the N910F from Lollipop (POF2) to KitKat (ANK5)?
YES, IT IS POSSIBLE.
Before yesterday I've never used KitKat on my Note4.. When I bought the phone I had no time to try it (KitKat) because I've straight rooted it and flashed a Lollipop based ROM.
Then yesterday I wanted to try a KitKat based ROM and I've lost about 30/40min looking in the forum for the answer to the question Is it possible to downgrade the N910F from Lollipop (POF2 or whatever) to KitKat (ANK5)?
I could not find a proper answer.. there was this BOF5 bootloader can not be downgraded but it was always in a "strange contest" and it did not convinced me.. after 30/40min I said ***k *t and I just performed a full wipe from TWRP, flashed ANK5 modem and bootloader via ODIN, and installed the KitKat ROM from TWRP.
Sorry for the Question/Answer but this thread may will help someone to save time.
P.S.: My KitKat adventure lasted only 10min... It looked ugly to my eyes! Went back on POF2 and now trying out AICP
_mone said:
Is it possible to downgrade the N910F from Lollipop (POF2) to KitKat (ANK5)?
YES, IT IS POSSIBLE.
Before yesterday I've never used KitKat on my Note4.. When I bought the phone I had no time to try it (KitKat) because I've straight rooted it and flashed a Lollipop based ROM.
Then yesterday I wanted to try a KitKat based ROM and I've lost about 30/40min looking in the forum for the answer to the question Is it possible to downgrade the N910F from Lollipop (POF2 or whatever) to KitKat (ANK5)?
I could not find a proper answer.. there was this BOF5 bootloader can not be downgraded but it was always in a "strange contest" and it did not convinced me.. after 30/40min I said ***k *t and I just performed a full wipe from TWRP, flashed ANK5 modem and bootloader via ODIN, and installed the KitKat ROM from TWRP.
Sorry for the Question/Answer but this thread may will help someone to save time.
P.S.: My KitKat adventure lasted only 10min... It looked ugly to my eyes! Went back on POF2 and now trying out AICP
Click to expand...
Click to collapse
When you flashed that lollipop-based rom, that was a custom rom I assume? Did it contain a bootloader? Maybe you were still on the KitKat bootloader.
GidiK said:
When you flashed that lollipop-based rom, that was a custom rom I assume? Did it contain a bootloader? Maybe you were still on the KitKat bootloader.
Click to expand...
Click to collapse
Yes, it was a custom ROM. No, it didn't contain bootloader. No, I wasn't on the KitKat bootloader, for sure my bootloader was POF2. Trust me if I tell you that before the KitKat ROM I've flashed too many Lollipop ROMs with many Lollipop bootloaders.
I'm trying to do this but i fail in every action at odin with this SW rev. check fail. device 2 binary 1 in my SM-N910C and in odin its fail... ( i gets this after recovering my phone at kies after a bootloop )
i have a note 4 n910c with L.P 5.1.1 how a can downgrade to K.K or 5.01 L.P always fail when i try with odin. help please

A little help, please.

I'm coming from 4.4.1 I want to flash a Lollipop ROM, I haven't flashed for very nearly 2 years. I'm obviously rooted already.
Is coming from KitKat as simple as just flashing a Lollipop ROM? I'm an SM-9005, I've got Odin 3.10 and I want to flash Resurrection-Remix-LP-v5.5.5.
I've seen that I need to backup my PIT and obviously backup my current ROM, do I need to update my baseband or radio etc?
No one?
No need to backup your baseband or radio. RR is an AOSP ROM as far as I know, so you won't be able to flash it with Odin I'm guessing, as it comes as a zip package? I don't have any interest or idea about it, but you can only flash via Odin if the ROM comes as tar image.
Also as you are coming from KK, you 'might' need to flash a stock Lollipop ROM first to update the bootloader from KK to LP, read RR topic, see if its mentioned or not. If its not then you probably don't need to, but as I said no idea.

work custom kk base rom on lollipop modem and bl?

Hello friends now my gti9505 have custom lollipop rom.UHOJ2 base modem and bl.one suggest me can I flash custom kk base rom?any problem after flash kk base modem bl over on lollipop modem and bl?
Yes it will probably work.
Be sure no problem about baseband and imei lost?
chashmaa said:
Be sure no problem about baseband and imei lost?
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Click to collapse
A custom rom never contains a modem or bootloader. So no that does not apply.
It mean no any problems after flashing?
Some custom ROMs require an up-to-date modem and bootloader. If you flash a custom ROM, the imei may disappear or wifi/calls may not work if the ROM is too new for the phone's bootloader and modem.
Before installing a custom ROM on a phone, I make sure that the phone is working properly with the latest stock ROM.
audit13 said:
Some custom ROMs require an up-to-date modem and bootloader. If you flash a custom ROM, the imei may disappear or wifi/calls may not work if the ROM is too new for the phone's bootloader and modem.
Before installing a custom ROM on a phone, I make sure that the phone is working properly with the latest stock ROM.
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Click to collapse
He means it the other way around. He wants to use a kitkat rom on a lollipop bootloader and modem. That's shouldn't be a problem.
I see the OP asking 2 questions:
1) Can a KK ROM be flashed to a phone running an LP bootloader and modem. Generally, I would say yes but whether all functions work will depend on the KK ROM. Some custom KK ROMs I ran on my Nexus 5 required me to downgrade the bootloader and radio to KK versions.
2) Can a KK modem and bootloader be flashed over an existing LP modem and bootloader? I think it depends on the phone's installed bootloader.
Yes audit13 brother my quistion is no1. I have now albe95 astra v2 on UHOJ2 base modem and bl lollipop. And goes to goldfinger kk base.now confused what can I do?
Did not try on i9505 but it works on i9500. I think it will work but u should backup your EFS partition
I say try the KK ROM on the LP bootloader and modem. If it doesn't work, you'll either have to find another ROM or you'll have to try and flash a KK bootloader and modem over a LP bootloader and modem.

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