Develop Bugs

Downgrade Android 7.0 a 6.0.1 Galaxy S6 Edge+ (G928F)

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Sorry but what are you on about? Android 7.0 hasn't even been released for this device yet....

This is all well and good but as stated by Alex Android 7 isn't out for S6 edge + yet. And I'm pretty sure when it does come out it will change the boot loader and reverting back to 6.0.1 will cause imei and baseband loss.

Alex---1 said:
Sorry but what are you on about? Android 7.0 hasn't even been released for this device yet....
Click to expand...
Click to collapse
If it came out but not officially since the rom filter is that of developers

kdogguk said:
This is all well and good but as stated by Alex Android 7 isn't out for S6 edge + yet. And I'm pretty sure when it does come out it will change the boot loader and reverting back to 6.0.1 will cause imei and baseband loss.
Click to expand...
Click to collapse
I was on Nougat multiple times (Khongloi S7 port ROM and DevBase 7.0 ROM modifications), returning to MM was as easy as going to TWRP and flashing a MM ROM, without any bootloader business involved... In my case I simply flashed the V15 Note 7 port by Khongloi, and I was back on MM without any bugs or problems. And if you didn't notice, the firmware in this guide includes a bootloader, so even in the case of the bootloader changing with Nougat, there would be no issue reverting back. I've downgraded my Note 4 from Marshmallow to Kitkat multiple times (for testing purposes), and it's as easy as doing the same steps that are provided in this guide
Go down to the development section, you can see that there are multiple Nougat ROMs that exist for this device already, all based on a leaked base ROM that was meant for app developers. The ROM is nowhere near to finished, it drains battery and the performance is poor, and for that reason many users will consider downgrading, and this thread works for that purpose

galaxyYtester said:
The ROM is nowhere near to finished, it drains battery and the performance is poor
Click to expand...
Click to collapse
You must be living in some alternate reality.

0rigin said:
You must be living in some alternate reality.
Click to expand...
Click to collapse
No, the performance and battery life ratio really is worse in the ROM, it doesn't benchmark even close to stock MM and battery drains fast on some occasions

galaxyYtester said:
I was on Nougat multiple times (Khongloi S7 port ROM and DevBase 7.0 ROM modifications), returning to MM was as easy as going to TWRP and flashing a MM ROM, without any bootloader business involved... In my case I simply flashed the V15 Note 7 port by Khongloi, and I was back on MM without any bugs or problems. And if you didn't notice, the firmware in this guide includes a bootloader, so even in the case of the bootloader changing with Nougat, there would be no issue reverting back. I've downgraded my Note 4 from Marshmallow to Kitkat multiple times (for testing purposes), and it's as easy as doing the same steps that are provided in this guide
Go down to the development section, you can see that there are multiple Nougat ROMs that exist for this device already, all based on a leaked base ROM that was meant for app developers. The ROM is nowhere near to finished, it drains battery and the performance is poor, and for that reason many users will consider downgrading, and this thread works for that purpose
Click to expand...
Click to collapse
This might be due to the fact that they are ports of 7.0.
Im just warning people that update to official when it comes out that it has been known that it updates files that once done cannot be reverted back or it will cause problems, one being the null baseband/imei.
But yes, reverting back at the moment is as easy as flashing a 6.0.1 rom or stock firmware.
Either way hopefully people back up their efs!

i updated to an official 7.0 firmware and now i can't flash 6.0.1 bootloader. Any ideas or am i stuck at 7.0?

kdogguk said:
This is all well and good but as stated by Alex Android 7 isn't out for S6 edge + yet. And I'm pretty sure when it does come out it will change the boot loader and reverting back to 6.0.1 will cause imei and baseband loss.
Click to expand...
Click to collapse
hello
is there any way to avoid this baseband and imei issue or to downgrade BL?

game.gallery said:
hello
is there any way to avoid this baseband and imei issue or to downgrade BL?
Click to expand...
Click to collapse
Well hopefully people will back up their EFS which is a MUST do before starting to flash roms etc.
If you have I think you can use odin to go back to 6.0.1 and then restore the backed up EFS from that version of Android.
Other than that you're stuck on nougat roms.
If you have reverted back to older and you lose imei and/or baseband then you'll need to reinstall nougat rom to get the imei/baseband back.
But as I haven't flashed an official nougat rom I can't say if this will all work or not. I'm going by past experience when I did this with jellybean - kitkat on my old phone.

kdogguk said:
Well hopefully people will back up their EFS which is a MUST do before starting to flash roms etc.
If you have I think you can use odin to go back to 6.0.1 and then restore the backed up EFS from that version of Android.
Other than that you're stuck on nougat roms.
If you have reverted back to older and you lose imei and/or baseband then you'll need to reinstall nougat rom to get the imei/baseband back.
But as I haven't flashed an official nougat rom I can't say if this will all work or not. I'm going by past experience when I did this with jellybean - kitkat on my old phone.
Click to expand...
Click to collapse
thanks for reply.
but the one that i have was officially bought with nougat

Do you know where to get pit file for SM-G928G?

Need help on Galaxy Note 2 N7105

Hi Guys,
I have switching roms in these few months. Recently, I tried to use back the stock rom N7105XXUFOB2. Everything went normal until I found 2 problems:
1. imei is blank with /01 when typing *#06#, but baseband was shown and I can still get the network. (My mistake for not backing up the efs folder)
2. GPS not found, tried with google map and waze but same issue. Tried with gps status also to no solution. (No satellite at all)
Then, I went for customs rom, GPS works and network works as per normal but with imei blank and baseband display. Anyone got idea on how to resolve it?
Appreciated if anyone can help.

Where did you get the stock ROM? Is that the latest stock ROM for the phone?
I found these stock ROMs: https://updato.com/firmware-archive-select-model?exact=1&q=GT-N7105

audit13 said:
Where did you get the stock ROM? Is that the latest stock ROM for the phone?
I found these stock ROMs: https://updato.com/firmware-archive-select-model?exact=1&q=GT-N7105
Click to expand...
Click to collapse
I have forgotten where I downloaded it. But definitely not sammobile as it requires user login.
Below is the version I use.
PDA/AP Version: N7105XXUFOB2
CSC Version: N7105OLBFOD1
MODEM/CP Version: N7105XXUFNI2
Region: Singapore (singtel)
Are you saying that the stock rom I am downloading is not genuine or somehow corrupted?
Is that possible that imei blank, baseband still around and mobile signal works as per normal? Because I am facing it. lol.
By the way, in 4.4.2, is there anyway to do screen mirroring to samsung tv? Firstly, it mentions 'Unable to Start Screen Mirroring because of Hardware Issues'. Then I checked online and edit build.prop file by adding in “wlan.wfd.hdcp=disable“. Then the hardware issue quote is gone but the tv screen is blank.

I would flash the latest stock ROM from updato.com.
I'm not sure how you can get any cell or data service from your carrier without success valid IMEI.

audit13 said:
I would flash the latest stock ROM from updato.com.
I'm not sure how you can get any cell or data service from your carrier without success valid IMEI.
Click to expand...
Click to collapse
Ya, it is very weird. But just to confirm again. If I reflash the rom from the website you mentioned, Is that possible to fix the blank imei issue? I think it is going to be 50-50.
I have tried googled this issue, I found some said to change imei using mtk tool, does it apply to galaxy note 2 as it mentioned works for Mediatek devices and not sure about others?

Just a friendly reminder that XDA does not permit any discussions related to changing an IMEI.
Flashing the latest stock ROM will sometimes being back the IMEI.

audit13 said:
Just a friendly reminder that XDA does not permit any discussions related to changing an IMEI.
Flashing the latest stock ROM will sometimes being back the IMEI.
Click to expand...
Click to collapse
Understood. I found the same rom in updato, just wonder why some roms with same android version but different pda version so late? (Eg, France (Orange) (FTM), N7105XXUFQH1, 4.4.2- 17 Sept 2017)
Is it just because the rom is being updated late in updato?

Different ROMs for different regions and carriers. Not all ROMs have the same languages too.

audit13 said:
Different ROMs for different regions and carriers. Not all ROMs have the same languages too.
Click to expand...
Click to collapse
Understood and thanks for your explanation. For stock firmware, do you have problem doing screen mirroring to smart TV?

Unfortunately, I can't comment on mirroring because I haven't had a Samsung phone for a while.

audit13 said:
Unfortunately, I can't comment on mirroring because I haven't had a Samsung phone for a while.
Click to expand...
Click to collapse
Oh I see, never mind then.
The problem on the stock firmware is that manufacturer has already abandoned the phone. Therefore, many apps have been discontinued and that's why the screen mirroring is not working. But I trully love the stock camera app compared with custom rom. :crying:
Now I'm using custom rom and will continue monitoring first. :laugh:
Anyway, thanks again.

I think the note 2 has decent hardware and could probably run 6.0 with no problem but Samsung would sell fewer phones

audit13 said:
I think the note 2 has decent hardware and could probably run 6.0 with no problem but Samsung would sell fewer phones
Click to expand...
Click to collapse
Ya, you are right. I am not using custom rom resurrection remix nougat version. The camera is not as smooth as the stock camera which is sad for me. My wife did complain to me that the phone with this rom was lagging, which led me to back to stock firmware.
But now I am back to same rom so far is ok, only that I need to make sure the phone can run smoothly and I will be happy to use it. Cheers.

Which Roms can be installed with QI15 firmware

I have purchased yet another note 4 for the grandson. His firmware is QI15. Original plan was for me to use it, but since my Pixel 3a XL is still yet a lease I might as well use it. Plus it is a lot faster anyway.. His mother does not have the money to buy one for him, so I figured what the hell, he can have it.Which roms can he use.. I no longer have mine, but will root this if it is still possible.. From reading you can't downgrade from MM to LL. But can you downgrade to a earlier version of MM? Thanks.

inYes, that is correct but also cant downgrade the bootloader/modem. That is because of fused 5, binary 4. and te old official stock 5DQ15 .tar md5 can be fashed via Odin. Any other stock firmware below that has a fused 4 and flashing will result in a bricked device.
If your already on 5DQ15 and wish to flash customer roms then use TWRP and make a back up of all partitions to external sd. The any custom rom for Sprint Note 4 (sm-n910p) on Marshmallow are/should compatible. Basically, follow the instructions provided by the rom developer but do not flash a different bootloader or modem. Other than that follow all other institution. For best results, start in setting , sustem update and turm of automatic updates then update PRL and Profile beforehand. Developer Option and usb debugging enabled.
Rooting the Sprint Note 4 on 5DQ15 still possible? Yes 100% SuperSu or Magisk are the preferred root methods.
---------- Post added at 08:42 AM ---------- Previous post was at 08:16 AM ----------
[/COLOR]https://forum.xda-developers.com/no...are-customizations-mods-roms-kernels-t3960353
Also recommend you start with a stock deodexed rom as a base before flashing other custom roms. Rom only
https://forum.xda-developers.com/no...tock-deodexed-debloated-pk1-12-11-16-t3517454
or
https://forum.xda-developers.com/note-4-sprint/development/rom-t3568075
then reboot and give it time to properly set up set up. Check if hotspot is visible setting and check your apn settings. If all looks good and it should the return to TWRP and once again make a back up and rename (2019-10-05-deodexStockNoroot.....) so not to be mistaken with any other backups. After that flash root .zip and/or a custum rom of you choice.
I use the BeastMod r61 kernel by Freeza on a N4 Dtux V9 Legend rom. Fixed issues with network connection.
https://forum.xda-developers.com/note-4-sprint/development/rom-updated-1-14-2017-t3538051

Mr. JAVI said:
inYes, that is correct but also cant downgrade the bootloader/modem. That is because of fused 5, binary 4. and te old official stock 5DQ15 .tar md5 can be fashed via Odin. Any other stock firmware below that has a fused 4 and flashing will result in a bricked device.
If your already on 5DQ15 and wish to flash customer roms then use TWRP and make a back up of all partitions to external sd. The any custom rom for Sprint Note 4 (sm-n910p) on Marshmallow are/should compatible. Basically, follow the instructions provided by the rom developer but do not flash a different bootloader or modem. Other than that follow all other institution. For best results, start in setting , sustem update and turm of automatic updates then update PRL and Profile beforehand. Developer Option and usb debugging enabled.
Rooting the Sprint Note 4 on 5DQ15 still possible? Yes 100% SuperSu or Magisk are the preferred root methods.
---------- Post added at 08:42 AM ---------- Previous post was at 08:16 AM ----------
[/COLOR]https://forum.xda-developers.com/no...are-customizations-mods-roms-kernels-t3960353
Also recommend you start with a stock deodexed rom as a base before flashing other custom roms. Rom only
https://forum.xda-developers.com/no...tock-deodexed-debloated-pk1-12-11-16-t3517454
or
https://forum.xda-developers.com/note-4-sprint/development/rom-t3568075
then reboot and give it time to properly set up set up. Check if hotspot is visible setting and check your apn settings. If all looks good and it should the return to TWRP and once again make a back up and rename (2019-10-05-deodexStockNoroot.....) so not to be mistaken with any other backups. After that flash root .zip and/or a custum rom of you choice.
I use the BeastMod r61 kernel by Freeza on a N4 Dtux V9 Legend rom. Fixed issues with network connection.
https://forum.xda-developers.com/note-4-sprint/development/rom-updated-1-14-2017-t3538051
Click to expand...
Click to collapse
you know what sucks, my last note 4 for Sprint hell I was able to downgrade from marshmallow to lollipop. But since this is for the grandson I guess it really doesn't matter I'll put something on there good for him and leave it at that

doubledragon5 said:
you know what sucks, my last note 4 for Sprint hell I was able to downgrade from marshmallow to lollipop. But since this is for the grandson I guess it really doesn't matter I'll put something on there good for him and leave it at that
Click to expand...
Click to collapse
I 100% agree that not being able to downgrade sucks big time. I hear all the hipe about new Android OS updates but there are advantages of older versions. In 2018, I searched for a replacement with a lower bootloader but simply couldn't find one. Knowing that peope were bricking there device and Odin fails I decided to get one in fair condition. Being the type to mod and flash yet unsure of what ir how to do that as custom roms are specific to bootloader and modem. I figured, I'll practice with a cheap on incase I hard brick. At the time there didnt seem to be specific information on what rom worked with 5DQ15. I started out with Stockist Plus tidbits Q15. My old Note 4 was on [MOAR v2.1] [ULTIMATE Note5 Hybrid] on lollipop 5.1.1. and had lost of customizations prebuild. So going from the Mother Of All Roms (MOAR) on lollipop to Stockish Q15 on marshmallow, just sucked. It didnt take long before I started taking calculated risks with flashing and porting, even from other models and variations. Stepping out side the box but within boundaries. For instance, the n910f is an international version but much of its software is compatible with the n910p. For instance, this one works on n910p with most stockish roms on Sprint Note 4. With Custum roms it may conflict depending on the setting. If stockish rom or custom rom come with a "rom control"app (interface) and .zip in the link bellow come with "rom control" app thin it is not compatible. One cool feature is it adds "multiple user" in setting.
https://forum.xda-developers.com/note-4/themes-apps/utility-rom-control-note-4-stock-roms-t3586944
These n910f worked for me and has the advantage of separate .zips moding specific parts but warn that one of these .zip in the link , I believe its the "settings theme" .zip when flashed removes "hotspot" from the settings. Just 6.0mm zips are compatible on dq15 n010p.
https://forum.xda-developers.com/note-4/themes-apps/theme-customize-galaxy-note-4-n910f-t3017621
The GRX is one of my favorites for stockish roms. It can be compatible with custom roms but its a complicated process. Im guessing it should work with the N7 hybrid rom. Its relatively easy and offers nice smooth customizations. Its a good idea to chech the setting of both settem and "setting GRX" as to avoid conflict. If you find it on XDA even better. For me, I find it to be the best thing on 6.0mm.
https://www.google.com/amp/s/androidfit.com/grx-touchwiz-mod-v8-apk-for-any-samsung/amp
And the PK1 hotspot mod will work as long as the hotspot is in the main settings.
https://forum.xda-developers.com/no...tock-deodexed-debloated-pk1-12-11-16-t3517454
Good luck to you and your grandson rooting and moding.

Mr. JAVI said:
I 100% agree that not being able to downgrade sucks big time. I hear all the hipe about new Android OS updates but there are advantages of older versions. In 2018, I searched for a replacement with a lower bootloader but simply couldn't find one. Knowing that peope were bricking there device and Odin fails I decided to get one in fair condition. Being the type to mod and flash yet unsure of what ir how to do that as custom roms are specific to bootloader and modem. I figured, I'll practice with a cheap on incase I hard brick. At the time there didnt seem to be specific information on what rom worked with 5DQ15. I started out with Stockist Plus tidbits Q15. My old Note 4 was on [MOAR v2.1] [ULTIMATE Note5 Hybrid] on lollipop 5.1.1. and had lost of customizations prebuild. So going from the Mother Of All Roms (MOAR) on lollipop to Stockish Q15 on marshmallow, just sucked. It didnt take long before I started taking calculated risks with flashing and porting, even from other models and variations. Stepping out side the box but within boundaries. For instance, the n910f is an international version but much of its software is compatible with the n910p. For instance, this one works on n910p with most stockish roms on Sprint Note 4. With Custum roms it may conflict depending on the setting. If stockish rom or custom rom come with a "rom control"app (interface) and .zip in the link bellow come with "rom control" app thin it is not compatible. One cool feature is it adds "multiple user" in setting.
https://forum.xda-developers.com/note-4/themes-apps/utility-rom-control-note-4-stock-roms-t3586944
These n910f worked for me and has the advantage of separate .zips moding specific parts but warn that one of these .zip in the link , I believe its the "settings theme" .zip when flashed removes "hotspot" from the settings. Just 6.0mm zips are compatible on dq15 n010p.
https://forum.xda-developers.com/note-4/themes-apps/theme-customize-galaxy-note-4-n910f-t3017621
The GRX is one of my favorites for stockish roms. It can be compatible with custom roms but its a complicated process. Im guessing it should work with the N7 hybrid rom. Its relatively easy and offers nice smooth customizations. Its a good idea to chech the setting of both settem and "setting GRX" as to avoid conflict. If you find it on XDA even better. For me, I find it to be the best thing on 6.0mm.
https://www.google.com/amp/s/androidfit.com/grx-touchwiz-mod-v8-apk-for-any-samsung/amp
And the PK1 hotspot mod will work as long as the hotspot is in the main settings.
https://forum.xda-developers.com/no...tock-deodexed-debloated-pk1-12-11-16-t3517454
Good luck to you and your grandson rooting and moding.
Click to expand...
Click to collapse
your in-depth detail of what works good for this phone with this particular bootloader is much appreciated thanks.

doubledragon5 said:
your in-depth detail of what works good for this phone with this particular bootloader is much appreciated thanks.
Click to expand...
Click to collapse
Thank you and your welcome, happy to help

doubledragon5 said:
your in-depth detail of what works good for this phone with this particular bootloader is much appreciated thanks.
Click to expand...
Click to collapse
If you install Busybox with the N7 hybrid kernel I offer a suggestion.

Busybox by Stephen (Stericson)

I never installed the Dr. Ketan rom but I did look at the Touchwiz launcher provided in the .zip and it is a MM. Dont know why you got FC's . Most likely its our latest firmware that to blame.

Wish I could remember what it was I flashed to get that in my settings as I think I remember you wanted that feature.

Is there more ROMs?

I recently purchased an tab S4 just an update from my previous Samsung tablet. I was wondering is there more ROMs for this tablet or ROMs currently in development? I noticed theres like 2 ROMs for this tablet. I have a note 8 and I'm currently running deluxerom on and it, and I really enjoy the tweaks and customization I'm able to do. I was looking for a same kind of feature for my tablet. Would greatly appreciate the answers I'm looking for. Thanks!

Mkami said:
I recently purchased an tab S4 just an update from my previous Samsung tablet. I was wondering is there more ROMs for this tablet or ROMs currently in development? I noticed theres like 2 ROMs for this tablet. I have a note 8 and I'm currently running deluxerom on and it, and I really enjoy the tweaks and customization I'm able to do. I was looking for a same kind of feature for my tablet. Would greatly appreciate the answers I'm looking for. Thanks!
Click to expand...
Click to collapse
Pretty much zero support. You can get a few 9.0 GSI ROMs to boot, but they all have issues. Mine has been sitting around since it was purchased while still using my old 2014 model.

veekay said:
Pretty much zero support. You can get a few 9.0 GSI ROMs to boot, but they all have issues. Mine has been sitting around since it was purchased while still using my old 2014 model.
Click to expand...
Click to collapse
Aww no way!? Really? I excitingly got this tablet cause of the features and thought perhaps there would be amazing ROMs for this particular tablet, but I guess not xD What are GSI ROMs? Also as a desperate attempt would other tablet ROMs work on this s4? Thanks mate!

Mkami said:
Aww no way!? Really? I excitingly got this tablet cause of the features and thought perhaps there would be amazing ROMs for this particular tablet, but I guess not xD What are GSI ROMs? Also as a desperate attempt would other tablet ROMs work on this s4? Thanks mate!
Click to expand...
Click to collapse
I had thought the same thing, but it seems the S3 is the last tablet to get real support.
https://forum.xda-developers.com/project-treble/trebleenabled-device-development
Some of the ones for 9 will work, but most features won't work too well, if at all.
You might be able to get another rom to work, I know I had no luck. Even trying ones with similar hardware, they all failed to even flash since the booting numbers are different.
Kind of have to be satisfied with Samsung, half baked custom roms or sell the thing.

Mkami said:
Aww no way!? Really? I excitingly got this tablet cause of the features and thought perhaps there would be amazing ROMs for this particular tablet, but I guess not xD What are GSI ROMs? Also as a desperate attempt would other tablet ROMs work on this s4? Thanks mate!
Click to expand...
Click to collapse
First,download "Treble Check" app from playstore & read for your device...
https://www.xda-developers.com/flash-generic-system-image-project-treble-device/
(Some GSIs roms are not compatible with some devices!)

veekay said:
I had thought the same thing, but it seems the S3 is the last tablet to get real support.
https://forum.xda-developers.com/project-treble/trebleenabled-device-development
Some of the ones for 9 will work, but most features won't work too well, if at all.
You might be able to get another rom to work, I know I had no luck. Even trying ones with similar hardware, they all failed to even flash since the booting numbers are different.
Kind of have to be satisfied with Samsung, half baked custom roms or sell the thing.
Click to expand...
Click to collapse
Hey Veekay I tried it and you're right unfortunately I came across the same issue as you brother
Now I'm stuck and I need help sorting my device out, was wondering if you knew this issue or could help?
When I got the stock firmware back and then when I flash TWRP with odin after going into TWRP I get 0mb as internal
so when I format and then go back into my load up the screen after SAMSUNG says "verification failed" and then reset
on the bottom. I tried other options as well. Without even wiping on TWRP the devices boots up into the setup wizard for the firmware fine
but after I wipe TWRP so I can get access to my internal drive my samsung boots into that verification reset screen. Got any clue as to how I can
resolve this issue? Thanks a bunch!

daitalos said:
First,download "Treble Check" app from playstore & read for your device...
https://www.xda-developers.com/flash-generic-system-image-project-treble-device/
(Some GSIs roms are not compatible with some devices!)
Click to expand...
Click to collapse
Hey! Thanks for your reply, will this work for PIE? I can't downgrade from PIE to OREO
and I don't know if GSI even works properly on my device

Mkami said:
Hey Veekay I tried it and you're right unfortunately I came across the same issue as you brother
Now I'm stuck and I need help sorting my device out, was wondering if you knew this issue or could help?
When I got the stock firmware back and then when I flash TWRP with odin after going into TWRP I get 0mb as internal
so when I format and then go back into my load up the screen after SAMSUNG says "verification failed" and then reset
on the bottom. I tried other options as well. Without even wiping on TWRP the devices boots up into the setup wizard for the firmware fine
but after I wipe TWRP so I can get access to my internal drive my samsung boots into that verification reset screen. Got any clue as to how I can
resolve this issue? Thanks a bunch!
Click to expand...
Click to collapse
Have you tried just reloading the latest stock firmware from scratch?

Yup, its unfortunate that there isn't much community support for this device. The Tab S4 is Project Treble supported and a few GSI ROMS do work. But as others have said they are unstable and not for use as a daily driver. We have a few discussion threads here talking about them.

veekay said:
Have you tried just reloading the latest stock firmware from scratch?
Click to expand...
Click to collapse
Would that work? If I did that I would still be able to download and install TWRP and have a root? Because of it being PIE

UndeadAnarchy said:
Yup, its unfortunate that there isn't much community support for this device. The Tab S4 is Project Treble supported and a few GSI ROMS do work. But as others have said they are unstable and not for use as a daily driver. We have a few discussion threads here talking about them.
Click to expand...
Click to collapse
I am going to do more research on these projects because I really wish there was more ROMs its quite an amazing tablet but the potential with the stock ROM lacks a lot

Mkami said:
Hey! Thanks for your reply, will this work for PIE? I can't downgrade from PIE to OREO
and I don't know if GSI even works properly on my device
Click to expand...
Click to collapse
Generic System Image (GSI) list :
https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-(GSI)-list
you can try only "Android 9 Pie" official or unofficial gsi roms..
and remember ! Some GSIs roms maybe are not compatible with some devices! you can ask for your device on each thread
(for example look here): https://github.com/phhusson/treble_experimentations/issues/777
(usually this Gsi aosp 9 phh, generally works on most devices...BUT! ask first,and discuss it in the thread)
https://forum.xda-developers.com/pr...vice-development/aosp-9-0-phh-treble-t3831915

daitalos said:
Generic System Image (GSI) list :
https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-(GSI)-list
you can try only "Android 9 Pie" official or unofficial gsi roms..
and remember ! Some GSIs roms maybe are not compatible with some devices! you can ask for your device on each thread
(for example look here): https://github.com/phhusson/treble_experimentations/issues/777
(usually this Gsi aosp 9 phh, generally works on most devices...BUT! ask first,and discuss it in the thread)
https://forum.xda-developers.com/pr...vice-development/aosp-9-0-phh-treble-t3831915
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Click to collapse
Can I do this without stock ROM and only TWRP? Because having the stock ROM is disabling my twrp to function without wiping and if I wipe than my stock ROM doesn't work
Thanks!

Mkami said:
Can I do this without stock ROM and only TWRP? Because having the stock ROM is disabling my twrp to function without wiping and if I wipe than my stock ROM doesn't work
Thanks!
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Click to collapse
Sorry,but I don't understand what do you mean " without stock rom and only twrp"...
you can install a Gsi rom, with two ways
Via TWRP, or Via Fastboot : https://www.xda-developers.com/flash-generic-system-image-project-treble-device/ (Tab S4 is a-only arm64)
for any other question, it is better to ask in the thread : https://forum.xda-developers.com/pr...vice-development/aosp-9-0-phh-treble-t3831915
(read carefully in OP & you can post,every single question there for your device,and you will get certainly help from the developer or from any other user..)

Mkami said:
Can I do this without stock ROM and only TWRP? Because having the stock ROM is disabling my twrp to function without wiping and if I wipe than my stock ROM doesn't work
Thanks!
Click to expand...
Click to collapse
You are going to have to just wipe it and start over from square one, unless you made a TWRP backup before starting all of this.
Download and flash the latest stock rom from recovery and then you can load twrp again.

I was looking at the possibility of using GSI's on some devices, and while they can offer new life to older devices, they're not entirely stable all the time unless you're willing to make your own changes. I know Lineage has made some excellent progress, but it's not fullproof yet and I wouldn't try it unless you're willing to not use your device as a daily use device.
I had an extra T-Mobile Revvlry which is basically a rebranded Moto g7 Play that I installed the Lineage GSI image and it works fairly well. However, this is more the exception to the rule and Moto devices, I feel, are far simpler in design vs certain Samsung devices. It also had a ton of trial and error involved for me to get it up and running properly.

Is it possible as the s4 becomes older, more people buy it and Samsung stops releasing official updates that someone will come along and create a ROM for it? Or is it more like Samsung locked the bootloaders and its close to impossible to write a ROM for it? Is it still possible to root the s4?

slipnslider said:
Is it possible as the s4 becomes older, more people buy it and Samsung stops releasing official updates that someone will come along and create a ROM for it? Or is it more like Samsung locked the bootloaders and its close to impossible to write a ROM for it? Is it still possible to root the s4?
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Click to collapse
Read very carefully without rush ! for " WETA Kernel + Encryption disabler " etc
especially, read the user comments carefully, and ask on the thread for any questions you have..
https://forum.xda-developers.com/galaxy-tab-s4/development/recovery-twrp-3-3-0-sm-t83x-t3928278 (Pie version)
https://forum.xda-developers.com/showpost.php?p=79483624&postcount=2
https://forum.xda-developers.com/galaxy-tab-s4/how-to/guide-sm-t83x-twrp-magisk-t4059227
( Newest Odin v3.14.4 is there : https://dl2018.sammobile.com/Odin3-v3.14.4.zip )

Thanks. I took a quick peak at the roms and kernels in the roms and kernels forum and they are pretty much all abandoned.
Someone did mention that the LOS 16.0 and ArrowOS GSI's work alright but are a bit buggy.

slipnslider said:
Thanks. I took a quick peak at the roms and kernels in the roms and kernels forum and they are pretty much all abandoned.
Someone did mention that the LOS 16.0 and ArrowOS GSI's work alright but are a bit buggy.
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Click to collapse
samsung,maybe at the end of july to give the upgrade to android 10....it is very likely to happen I think
yes,all Gsi Roms still have various problems unfortunately...
my opinion is: stay to stock rom for now....you can "uninstall" many applications if you want & without root, via "samsung package disabler"(paid) from playstore, or with this way:
https://beebom.com/how-remove-bloatware-android-without-root/
also,you can Install "NiceLock Downloader Companion App" ,to add some features on your device : https://forum.xda-developers.com/galaxy-note-9/themes/nicelock-module-download-links-module-t3923844
with this way I operate my device until now..

Question Impact of Installing Custom ROM and Reverting to Stock Firmware on Galaxy S22 (Exynos Variant)

Hello XDA community,
I am considering installing a custom ROM on my Samsung Galaxy S22 (Exynos variant) and would like to gather some information regarding the implications of this action, especially if I decide to revert back to the official Samsung firmware later on.
Apps Compatibility: Which apps will no longer work if I switch back to the stock firmware after installing a custom ROM? I understand that tripping the Knox flag by rooting or installing custom ROMs can cause certain Samsung apps like Samsung Pay, Samsung Pass, and Secure Folder to stop functioning. But what about other apps? Specifically, I am concerned about the compatibility of my banking app from Belfius (Belgium) with features like contactless payments.
OTA Updates: Will I still be able to receive Over-The-Air (OTA) updates once I have installed a custom ROM and then switched back to the official firmware?
I understand that the Exynos variant might not differ significantly from the Snapdragon variant in this context, but I thought it's worth mentioning.
Any insights or experiences that you could share would be immensely helpful. Thank you in advance!

So first thing you need to understand is that you would be installing a GSI and not a fully maintained device based Rom.
That means forget about the timely updates.
Secondly, GSIs are not optimized for particular phones and you might encounter bugs. From what I remeber, VOLTE won't work on GSI and for some phones even Bluetooth audio and mobile Hotspot won't work. Not to mention erratic battery life and unoptimized system.
App compatibility won't be an issue. But you have to say good bye to the samsung ecosystem. Also, if you do decide to install a custom rom, you will trip Knox and a few apps like secure folder, Samsung pay, samsung pass and Health might not work (unless they are patched). As for banking apps, they should work fine unless you are rooting your phone. If you do, you just to install a magisk module to pass the play stone security settings (forgot the name of it).
Also, if you again decide to go back on the stock rom, you just need to relock the bootloader and you should be able to get Ota updates again.
Overall, it's a good experience but you will grow tired of the bugs present in the GSI soon.