Downgrade pie to Oreo?? - Samsung Galaxy Note 8 Questions and Answers

I done it before on s9+ but i have read on some sites, that bootloader must be the same, my bootloader has the '7' bootloader but want to run a Oreo rom (exykings oreo light rom) can i just flash after clean flash, or is it not possible?
Thank you

biggary said:
I done it before on s9+ but i have read on some sites, that bootloader must be the same, my bootloader has the '7' bootloader but want to run a Oreo rom (exykings oreo light rom) can i just flash after clean flash, or is it not possible?
Thank you
Click to expand...
Click to collapse
Not possible, you already answered yourself because you know you can't downgrade the bootloader and you can't run Oreo using the Pie bootloader.. If you're on an F version of the phone then you should be able to flash twrp and then flash whatever you want I'm assuming.

MrMike2182 said:
Not possible, you already answered yourself because you know you can't downgrade the bootloader and you can't run Oreo using the Pie bootloader.. If you're on an F version of the phone then you should be able to flash twrp and then flash whatever you want I'm assuming.
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Click to collapse
im on the F version
but didnt understand your post.... i can flash whatever i want????

biggary said:
im on the F version
but didnt understand your post.... i can flash whatever i want????
Click to expand...
Click to collapse
If you want to downgrade from Pie - N950FXXS"7"DSG1 to Oreo - N950FXXS"6"DRE2 you CANNOT do it because the bootloader ver "7" won't allow itself to be downgraded to lower versions "6",5,4,3,2, and 1! You're stuck on PIE!
(The Number in Quotes is the bootloader version. )
If you root your phone you can try to see if the custom oreo rom will boot with bootloader version "7" by asking and searching in the custom rom (that you choose to run) thread.
Root does come with a few cons like permanently tripped knox, No Samsung pay, and no knox related apps so read up on it.
(You will lose secure folder and Samsung health if you go back to stock firmware! But if you stay rooted and on a custom rom then you'll have access to Samsung health and secure folder (Devs found a way to get secure folder working! Check the note 8 roms forums for info on it.)
Edited.....

biggary said:
im on the F version
but didnt understand your post.... i can flash whatever i want????
Click to expand...
Click to collapse
Read @BluePhnx post.. I already told you that you can't downgrade but you can root and flash twrp and then flash whatever roms that the devs have made for bootloader version 7! There's really no going back!

Related

A few Questions from a Noobie

Hi, im new to Note 5 Dev. and been out of the loop since it was released. i had a Sony Xperia play and a Galaxy s3 before and know how to do the basic stuff to do custom roms and flash stuff etc. to those Phones. But a Note 5 is different, running on Lollipop, having EFS partition stuff and OEM unlock Stuff. i just want to ask a few questions to make sure i don't do something stupid (i already did some of the research for answers on some of this for a few days now and some are Informative and Awesome, but a little outdated) so tnx in advance kind People :fingers-crossed:
My Device: SM-N920C (UAE)
Android Ver: 5.1.1 (Lollipop) Stock
Questions:
1.) Can i Revert back to 5.1.1 (lollipop) stock/ [Downgrade] , IF i decided to update to Nougat Stock?? (just curious ) and if yes, can you kindly link me to a process? if not, then that's fine too :laugh:
2.) Do you have to Enable OEM unlock if Updating Stock (in my case Nougat)??
I red somewhere on Magisk thread here on XDA that it can Grant Root Access to 5.0+ . If so, installing TWRP and Flashing Magisk on 5.1.1 involves Enabling USB Debugging and OEM Unlock.
3.) Do i have to Enable OEM Unlock Forever now? cause i saw some threads says that if you disable it, you will have a bootloop or a soft brick and will have to Flash Stock again and repeat. (don't really have a problem with it being Enabled, but the other people in Tutorials , Vid. Tutorials and Thread Posts just mentions "Enable it". And never really says after the process is done u can Disable it and stuff.), just want to have that information, cause i Understand that OEM is a LOCK that Even if someone steals your phone and has a lock in it. they can't just Flash a Stock Rom on it to Unlock it. [great feature] :fingers-crossed:
4.) if i have a Custom Recovery and Rooted my phone ver. 5.1.1 successfully, can i still Unroot it and go back to Stock 5.1.1?? also applies to other Versions of android. EX. nougat Stock then i root it, will i still unroot it and go back to stock?
5.) Do you need to be in a Specific Version of android to use the Custom Roms?? i mean i'm in android 5.1.1 [if rooted], can i flash a Nougat Custom Rom or a s8 port etc.?? or do i need to be in Stock Nougat > Root it > then flash Custom Nougat Roms?
That is all, Sorry if all the Questions are Freakin Long Shahaha, i just want to be specific so all the people who are also newbies can understand the questions and have answers. Tnx again for the people who have the patience to read and answer these questions. :highfive:
shadowhog006 said:
Hi, im new to Note 5 Dev. and been out of the loop since it was released. i had a Sony Xperia play and a Galaxy s3 before and know how to do the basic stuff to do custom roms and flash stuff etc. to those Phones. But a Note 5 is different, running on Lollipop, having EFS partition stuff and OEM unlock Stuff. i just want to ask a few questions to make sure i don't do something stupid (i already did some of the research for answers on some of this for a few days now and some are Informative and Awesome, but a little outdated) so tnx in advance kind People :fingers-crossed:
My Device: SM-N920C (UAE)
Android Ver: 5.1.1 (Lollipop) Stock
Questions:
1.) Can i Revert back to 5.1.1 (lollipop) stock/ [Downgrade] , IF i decided to update to Nougat Stock?? (just curious ) and if yes, can you kindly link me to a process? if not, then that's fine too :laugh:
2.) Do you have to Enable OEM unlock if Updating Stock (in my case Nougat)??
I red somewhere on Magisk thread here on XDA that it can Grant Root Access to 5.0+ . If so, installing TWRP and Flashing Magisk on 5.1.1 involves Enabling USB Debugging and OEM Unlock.
3.) Do i have to Enable OEM Unlock Forever now? cause i saw some threads says that if you disable it, you will have a bootloop or a soft brick and will have to Flash Stock again and repeat. (don't really have a problem with it being Enabled, but the other people in Tutorials , Vid. Tutorials and Thread Posts just mentions "Enable it". And never really says after the process is done u can Disable it and stuff.), just want to have that information, cause i Understand that OEM is a LOCK that Even if someone steals your phone and has a lock in it. they can't just Flash a Stock Rom on it to Unlock it. [great feature] :fingers-crossed:
4.) if i have a Custom Recovery and Rooted my phone ver. 5.1.1 successfully, can i still Unroot it and go back to Stock 5.1.1?? also applies to other Versions of android. EX. nougat Stock then i root it, will i still unroot it and go back to stock?
5.) Do you need to be in a Specific Version of android to use the Custom Roms?? i mean i'm in android 5.1.1 [if rooted], can i flash a Nougat Custom Rom or a s8 port etc.?? or do i need to be in Stock Nougat > Root it > then flash Custom Nougat Roms?
That is all, Sorry if all the Questions are Freakin Long Shahaha, i just want to be specific so all the people who are also newbies can understand the questions and have answers. Tnx again for the people who have the patience to read and answer these questions. :highfive:
Click to expand...
Click to collapse
1)If you flash stock 7.0 on your device if available then its hard to revert to back to stock 5.1.1 as there is thread in Question&Answers section about downgrading from 6.0.1 to 5.1.1 but many are unsuccessful(I have successfully downgraded from 7.0 to 6.0.1 but Cant confirm about 5.1.1 as google has changed many security policies in updates versions like 6.0.1 or 7.0 which will block your bootloader to downgrade easily/Issue you will face like lossing of baseband or corrupt imei which will block you from receiving network signal)
2)Yes its very important to enable Oem unlock and usb debugging while flashing any stock firmware using odin to avoid DM-Verity/SW Check Fail/Custom Binary blocked by FRP like issues which are hard to solve enough OR you will might hard brick your device which will be difficult to make it live again( AFAIK to flash TWRP or Any root access using odin there is instruction to enable Oem Unlock before flashing always remember it as a essential step before flashing anything using odin)
3)Yes once you enable Oem unlock for purpose of modification of your device, it needs to be unlocked or even its enabled by default to overcome reported issue like infinite bootloop or Many i mentioned in my 2nd Post And Oem unlock allows your bootloader to be customised by flashing mods or roms which is by default locked so that you could not easily modify your device as well as to avoid further modification issues
4)If you choose to stay at 5.1.1 and rooted your device with installed TWRP then yes you can unroot it by flashing 5.1.1 using odin( In case your on 6.0.1 or Even on 7.0 you can unroot your device with the same process but here to remind you that you need to flash stock 6.0.1 or 7.0 respectively version on which you rooted your device So if you will try to unroot it by flashing 5.1.1 again while your on 7.0 rooted device then again here downgrade issue which will probably give you mentioned error as a result)
5)To use custom nougat based roms or any S8+ port based on 7.0 you should atleast upgrade your bootloader and modem to 6.0.1( If your rooted on 5.1.1 and try installing nougat roms then your device will not boot as your using old bootloader, so upgrade bootloader or modem either to 6.0.1 or you can update whole system to 7.0>root>install TWRP>flash custom nougat based roms or s8+ ports afterall choice is your as if you want to upgrade only BL and Modem to 6.0.1 or want to upgrade system with BL and Modem to 7.0, i will mention here is BL and Modem for 7.0 are also available to flash you can find those on dr.ketan rom n10 installation instruction section in Samsung galaxy note 5>Android development>Dr.ketan Rom N10 instead of whole system update but Flashing Stock full firmware is always recommended for good reception and avoid glitches)
I think i have tried to fulfil all of your queries as far possible by myself
Regards,
AssassinCreed-Xda Developers
Too bad about the answer to the 3rd question, that feature would've been nice to have. but oh well. shahahaha
~Ooh!! i have a follow up question regarding your Answer to the 4th question. Can i also flash other Countries Stock firmware?? for example: mine is Stock 5.1.1 [UAE] can i flash Stock 5.1.1 [USA] or other Country variants?? [of course unlocked bootloader] , i searched again here for people who did that and for some reason they encounter Errors and Unable to revert back to their Original Stock Firmwares.
@AssassinCreed Thank you. yup, clear cut answers. Thank you!! :victory: :victory:

New user d415

Hi guys I got this old lg d415 from my cousin and Wana install some roms on it since I'm a noob on this device I need some help regarding what to do unlock bootloader or what .... I see that d415 has a unlocked bootloader or no ?
Its bootloader is already unlocked just root and flash twrp. kingroot to root and flashify to flash the recovery seem easiest. *Just make sure to update to LP beforehand. here's a link for recovery. You may be able to get a more updated version of the recovery off the twrp site. Also I suggest using the most recent lineage build. lineage
teknoweanie said:
Its bootloader is already unlocked just root and flash twrp. kingroot to root and flashify to flash the recovery seem easiest. *Just make sure to update to LP beforehand. here's a link for recovery. You may be able to get a more updated version of the recovery off the twrp site. Also I suggest using the most recent lineage build. lineage
Click to expand...
Click to collapse
Ypu wrong you have to unlock before flashing unless you are planning on bricking your device. You first have to root it and then flash laf with zeros u lock bootlosder, flash recocery , thenflash rom
Please don't tell people stuff you don't know about. The T-Mobile variant comes with its bootloader already unlocked. Also there is no laf to mess with.
teknoweanie said:
Please don't tell people stuff you don't know about. The T-Mobile variant comes with its bootloader already unlocked. Also there is no laf to mess with.
Click to expand...
Click to collapse
Really? I have tmobile variant and i had to unlock bootloader. Look at this https://forum.xda-developers.com/lg-l90/general/guide-unlock-bootloader-t-mobile-l90-t2836457
Wow I guess you did a bunch of useless stuff that does not matter. About as useful as me putting in does not matter instead of doesn't. Read what googlephone says at the end of the thread at post #204..............yeah..
teknoweanie said:
Wow I guess you did a bunch of useless stuff that does not matter. About as useful as me putting in does not matter instead of doesn't. Read what googlephone says at the end of the thread at post #204..............yeah..
Click to expand...
Click to collapse
Ok, didnt know

Downgrade from Pie to Oreo?

Can I downgrade or am I stuck on Pie?
I had manually updated the firmware and bootloader is unlocked.
Ragarianok said:
Can I downgrade or am I stuck on Pie?
I had manually updated the firmware and bootloader is unlocked.
Click to expand...
Click to collapse
I think I remember @JoeGatto said he did it no problem. Maybe he'll chime in
madbat99 said:
I think I remember @JoeGatto said he did it no problem. Maybe he'll chime in
Click to expand...
Click to collapse
I asked the same thing in another thread, and also pmed JoeGatto, he did reply "factory resetting and flashing the stock Oreo ROM".
I saw one of your posts advising not to flash bootloader or gpt, will flashing these cause errors?
madbat99 said:
I think I remember @JoeGatto said he did it no problem. Maybe he'll chime in
Click to expand...
Click to collapse
I managed to downgrade!
I basically followed the instructions here: https://forum.xda-developers.com/moto-g6/how-to/guide-faster-updated-guide-to-root-t3914228
Except I didn't flash gpt.bin and bootloader.img.
Hey @Ragarianok can you help me please? I want to downgrade and relock the bootloader of my moto g6 also. I would appreciate if you gave me your discord or something. Thanks!
The easiest thing to do would be to unlock the bootloader, flash recovery, and just install an Oreo rom (I recommend AOSP Extended) and Google apps
you could just flash an 8.x oero rom so there isn't anything to "downgrade" in the traditional sense.Also these Moto phones need sGSI and not just GSI , i think so.
tnx
MIN313 said:
The easiest thing to do would be to unlock the bootloader, flash recovery, and just install an Oreo rom (I recommend AOSP Extended) and Google apps
you could just flash an 8.x oero rom so there isn't anything to "downgrade" in the traditional sense.Also these Moto phones need sGSI and not just GSI , i think so.
tnx
Click to expand...
Click to collapse
I do not want to install a custom rom/ AOSP, I just want to downgrade and then relock the bootloader in the downgraded version.

Can I downgrade from March 2019 pie to last oreo android firmware and if so how? (T m

I coasted by for months not upgrading my note 8 because I heard bad things about pie on note 8. Well this morning I accidentally hit install now instead of backing out of it. Can I downgrade back to the final last version of oreo stock firmware? Here's my software info.
Can I and if so how to downgrade to tmobile note 8 oreo? https://imgur.com/gallery/puzXavA
Thank you very much.
Tmansdc said:
Can I downgrade back to the final last version of oreo stock firmware?
Click to expand...
Click to collapse
I don't have the "how to" answer for you. However, since you aren't on AT&T's locked bootloader, you can downgrade to any stock ROM you like. In either case, backing up your data, is a must.
Anonymously_Unknown said:
I don't have the "how to" answer for you. However, since you aren't on AT&T's locked bootloader, you can downgrade to any stock ROM you like. In either case, backing up your data, is a must.
Click to expand...
Click to collapse
What is wrong with my phone/odin? What am I doing wrong?
https://imgur.com/a/Krs3cgS
Tmansdc said:
What is wrong with my phone/odin? What am I doing wrong?
https://imgur.com/a/Krs3cgS
Click to expand...
Click to collapse
You can only downgrade if you use the same bootloader version you're on bootloader version 5 so you cannot try to flash any bootloader version below 5 it must be 5 or above! @Anonymously_Unknown is incorrect when he stated your bootloader isn't locked because your bootloader is locked unless you have the F version which you don't have. You have the American version not the international F version. Also you need to use the newest version of Odin available.
Thanks for the clarification

Reverting with unlocked bootloader

Before trying anything on my phone thought I wanna ask first.
I have an N960F, Exynos obviously; but I want to downgrade from Android 10 Q. I learned that I cannot flash official firmware via Odin that is based on an older bootloader version, say Oreo or Pie.
Would unlocking the bootloader change this case and allow me to flash Oreo again?
mhamdyl08 said:
Before trying anything on my phone thought I wanna ask first.
I have an N960F, Exynos obviously; but I want to downgrade from Android 10 Q. I learned that I cannot flash official firmware via Odin that is based on an older bootloader version, say Oreo or Pie.
Would unlocking the bootloader change this case and allow me to flash Oreo again?
Click to expand...
Click to collapse
Sadly, no. Sorry man, the unlocking of the bootloader only allows for non-official binaries to be installed, such as TWRP, but nothing will let you go backward in bootloader versions. Sorry man
post up your entire firmware version so we can look around for ya and hopefully find a pie firmware for ya

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