Question How to GSI on s23 ultra

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mohammed510

Senior Member
Feb 3, 2012
602
198
Dubai
Google Pixel 7a
hey mate forgot to ask one (actually, two) last thing-what steps did you follow to flash it? and was the patched vbmeta necessary?
I was coming from Beyond ROM. I flashed the patched vbmeta through Odin before installing Beyond ROM (see Beyond installation instructions). However, when flashing GSI i just reboot to TWRP then format data (wipes internal storage) then reboot to fastboot (fastboot inside TWRP) then Fastboot erase system . Then Fastboot Flash system system.img then reboot. That was all.
 
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JakoDel

Senior Member
May 15, 2017
198
138
I was coming from Beyond ROM. I flashed the patched vbmeta through Odin before installing Beyond ROM (see Beyond installation instructions). However, when flashing GSI i just reboot to TWRP then format data (wipes internal storage) then reboot to fastboot (fastboot inside TWRP) then Fastboot erase system . Then Fastboot Flash system system.img then reboot. That was all.
thanks! managed to install it and it would be almost perfect if it werent for the.. random graphics lag :p
do you have this bug as well? btw, I flashed the bgN package. it's still usable as a daily driver, I really didn't expect it to work this well, but it's a bit annoying not gonna lie. and the fp scanner lock option is completely absent, cant even try enrolling it :')

I'll report it to github alongside the fp scanner later on, might get both issues fixed
 
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mohammed510

Senior Member
Feb 3, 2012
602
198
Dubai
Google Pixel 7a
thanks! managed to install it and it would be almost perfect if it werent for the.. random graphics lag :p
do you have this bug as well? btw, I flashed the bgN package. it's still usable as a daily driver, I really didn't expect it to work this well, but it's a bit annoying not gonna lie. and the fp scanner lock option is completely absent, cant even try enrolling it :')

I'll report it to github alongside the fp scanner later on, might get both issues fixed
There's no bgN in "light" version. You might have flashed the TD based one? The correct one is "gN".


Light is much smoother than TD. After Flashing it go to Display and force FPS to 1440p@120hz. I haven't had any lags after forcing 120hz tbh.

Yes, FP doesn't show. AOD is available but hidden.
 

JakoDel

Senior Member
May 15, 2017
198
138
There's no bgN in "light" version. You might have flashed the TD based one? The correct one is "gN".


Light is much smoother than TD. After Flashing it go to Display and force FPS to 1440p@120hz. I haven't had any lags after forcing 120hz tbh.

Yes, FP doesn't show. AOD is available but hidden.
yeah I meant gN, sorry for the confusion.
but true, changing the refresh rate fixed the lag
 
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Hunter9037

Senior Member
Oct 20, 2010
93
15
OnePlus 7 Pro
The question in the thread has already been answered. I think it's time to create a thread for the ROM where more help and experiences can be exchanged.

Does a moderator do this?
 
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There's no bgN in "light" version. You might have flashed the TD based one? The correct one is "gN".


Light is much smoother than TD. After Flashing it go to Display and force FPS to 1440p@120hz. I haven't had any lags after forcing 120hz tbh.

Yes, FP doesn't show. AOD is available but hidden.
There are animation lags when you're opening apps from the drawer for example. It's VERY harsh. That isn't related to the refresh rate since it's forced to 120hz anyway. It could be something with the input boost, but not yet sure since I didn't have time to mess with it yet.
 
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mohammed510

Senior Member
Feb 3, 2012
602
198
Dubai
Google Pixel 7a
There are animation lags when you're opening apps from the drawer for example. It's VERY harsh. That isn't related to the refresh rate since it's forced to 120hz anyway. It could be something with the input boost, but not yet sure since I didn't have time to mess with it yet.

You can set animation duration to 0.5X in developer settings or turn them off completely. It will be a lot faster.
 
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AltFantasy

Senior Member
Aug 18, 2021
156
45
Nokia X10/X20
I thought that the S23 Ultra just doesn't support A/B partitioning, and even support Project Treble at all???
in any case, can anyone in here please give me info about if the S23 Ultra does have support for Treble, and by extension, A/B partitioning (even in stock OneUI ROM)?
 
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I'm not sure what you mean. It felt like using a Pixel to me.
Jitters= stuttering

They're only appearing when opening/closing apps.
Scrolling and everything else is fine.

Btw, I do own a Pixel 7 Pro.
I could even record and show you what I mean.

Anyways, it's manageable, was just curious if someone else has it.
 
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JakoDel

Senior Member
May 15, 2017
198
138
Jitters= stuttering

They're only appearing when opening/closing apps.
Scrolling and everything else is fine.

Btw, I do own a Pixel 7 Pro.
I could even record and show you what I mean.

Anyways, it's manageable, was just curious if someone else has it.
I have them as well, even ramping up the refresh rate hasn't fixed it completely. the rest is working so nicely though that I'm still quite happy with it. I'll create an issue on trebledroid/treble_experimentations but only in maybe a week or two (alongside another one for the fp scanner), so if you can create it faster feel free to do it yourself.
 
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bhammler

Senior Member
Feb 19, 2008
207
148
Xiaomi 11T Pro
hey, I've made an magisk overlay module. It's not tested and I don't know if it changes anything. Maybe you could try it
 

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I have them as well, even ramping up the refresh rate hasn't fixed it completely. the rest is working so nicely though that I'm still quite happy with it. I'll create an issue on trebledroid/treble_experimentations but only in maybe a week or two (alongside another one for the fp scanner), so if you can create it faster feel free to do it yourself.
Seems that the TD, non-light version has less stutters when opening apps, it's less noticable, but still there . Both are equally responsive and "smooth". Just FYI if you wanna get rid at least partially from the stutters.
 

JakoDel

Senior Member
May 15, 2017
198
138
Seems that the TD, non-light version has less stutters when opening apps, it's less noticable, but still there . Both are equally responsive and "smooth". Just FYI if you wanna get rid at least partially from the stutters.
thanks for letting me know, for now I'm quite happy with light and the refresh rate set to 90hz, I have stutters only when scrolling (really) fast. I'll still make in issue though, because this is just us trying to sweep this bug under the rug as much as we can :)
 

JakoDel

Senior Member
May 15, 2017
198
138
What exactly does this module do?
overlays in theory fix stuff like automatic brightness and a few other things
hey, I've made an magisk overlay module. It's not tested and I don't know if it changes anything. Maybe you could try it
thanks a lot! I tried it out and unfortunately it resulted into lineage getting stuck at the bootanimation.had the funny idea to do it while being outside, thinking "eh what's the worst that can happen with a magisk module" now I'll be able to fully appreciate the animation beauty thanks to samsung blocking access to recovery if it's not connected to a PC till I'm home :)

edit: thankfully, magisk automatically disabled the module after a few reboots. I tried to access it from adb to get logs with a friend's laptop, but it couldn't even reach that stage, adb couldn't find the device. Sorry about that, I'm sure with this little information there isn't much you can do.
 
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  • 4
    Wow that is awesome dude!! How is it going? Bugs you have found? Fingerprint?

    How is it? Smooth? Any problem? Battery wise? Everything :)))

    Hi guys, sorry for the delay. The stock 13 GSI was pretty good albeit not perfect. Smoothness was very nice after force enabling 120hz through adb (battery life is notably worse, as you would expect).

    Feels just about as smooth as stock, which is pretty good IMO.

    This was the stock google build, so no fingerprint or face unlock. I would imagine custom GSIs would fix some of this.

    However I eventually returned to stock since I post videos on social media apps a lot, and the generic camera API on the GSI made it pretty bad to look at.

    Fun to try out, just wasn't ready for my needs yet.

    I also did try to flash the original recovery for PEX like the user above me mentioned, still no dice. I have been out of the Android scene for a few years prior to this so it is probably something I am doing.

    Hope this helps, thanks!
    3
    Hi I am kind of noobish to GSIs but I got the google built android 13 GSI working on my s23 last night, couldn't get pixel experience to boot. CrDroid would boot but I was getting a lot of random trips to the bootscreen during set-up.

    Haven't tried android 14 yet, but the procedure was pretty simple for android 13 GSI. I had already unlocked bootloader/rooted my s23 before attempting this, which included flashing vbmeta_disabled



    Downloaded official google android 13 GSI

    Install TWRP with Odin
    Reboot to recovery and wiped data
    Reboot then into fastboot inside of TWRP
    flashing gsi using fastboot: fastboot flash system system image
    restarted went through set-up and downloaded Magisk and Pixelfy magisk mod and I am pretty content


    If anyone knows how to get another GSI like Pixel Experience or CrDroid to work reliably I am super interested
    2
    thanks! managed to install it and it would be almost perfect if it werent for the.. random graphics lag :p
    do you have this bug as well? btw, I flashed the bgN package. it's still usable as a daily driver, I really didn't expect it to work this well, but it's a bit annoying not gonna lie. and the fp scanner lock option is completely absent, cant even try enrolling it :')

    I'll report it to github alongside the fp scanner later on, might get both issues fixed
    There's no bgN in "light" version. You might have flashed the TD based one? The correct one is "gN".


    Light is much smoother than TD. After Flashing it go to Display and force FPS to 1440p@120hz. I haven't had any lags after forcing 120hz tbh.

    Yes, FP doesn't show. AOD is available but hidden.
    2
    Battery life is better and phone runs noticeably cooler. Uses much less RAM also :)
    and now I am 100% convinced. it's time for some modding on a 1k device

    I'll look into making an overlay, doesn't seem that hard, I'll let you know how it goes
    1
    Hi, i want to try android 14/pixel exp on s23 ultra as i have it on s22U but it seems to be impossible to install. Neither installs throught fastbootd neither from twrp how can i do it? Thanks