yashsingh1/xdaforums huggingface dataset:
[Sony Xperia XZ Premium ROMs, Kernels, Recoveries, ] LSS4181:
First make sure you backed up everything, including your phone's internal storage (which is not backed up by TWRP).

Use this TWRP to flash Treble-xzp-v0.85-with-system zip. After flashing, leave recovery and enter fastboot, and flash the needed SW Binaries (to OEM) and the GSI you want to use (to system). After this, make sure you go to recovery before booting.

BEFORE BOOTING: First FORMAT DATA if you haven't already done so. Then flash the disable forceencrypt script to prevent yourself from being locked out of TWRP after first boot (or with some GSIs, after you set up the screen lock). After that, you can try flashing some other stuffs that you want to use, and finally pray that your phone will boot to the GSI you just flashed, without issues.
[Sony Xperia XZ Premium ROMs, Kernels, Recoveries, ] wasnty:
thank you so much for your reply ...

i use twrp-q and flash Treble-xzp-v0.85-with-system zip , is ok ,

but you tell fastboot screen flash sw binaires , i guess use this code "fastboot flash oem" and flash this SW_binaries_for_Xperia_Android_9.0_2.3.2_v3_yoshino.zip ( extraction zip , i guess need .img file)

i know my english is bad :) but try this gsı rom our phone

xdaforums.com/project-treble/trebleenabled-device-discussion/request-android-q-beta-1-gsi-t3910822/

you recomemded any gsı rom ?

and our devices type which one , Only A or A/AB
[Sony Xperia XZ Premium ROMs, Kernels, Recoveries, ] LSS4181:
Our device is A only.

I've only used GSI for a short while... The AEX 6.2 by nFound is good enough without major bugs, while the OP suggested Descendant (which somehow I wasn't able to boot). Not sure if our device can boot an Android Q beta GSI (like you suggested), though.

You can also try Phh-Treble (which is closest to AOSP without too many extra features). I haven't tried this yet, but some (such as ViperOS) suggested that dirty-flashing GSI from Phh-Treble is needed for some GSI to boot. (I mean, after a clean flash of Phh-Treble, boot it once, then flash the target GSI without wiping data).

Sadly, the performance on GSI is nowhere comparable to stock, although there might be rooms for improvements in the future. A stock-based Treble solution would be helpful in the future.

And there's a major downside with GSI: You cannot rely on addon.d survival because we're flashing it via fastboot, so anything we flashed directly to the system partition will be lost upon update. Also, the GSI image itself usually doesn't leave room for other stuffs (if you try to flash GApps right after flashing GSI, you'll likely fail due to "no space left on device"), as the actual size of the system partition is not known, that you'll need to resize it after flashing, preferrably from recovery (it appears the partition would be resized after booting to system as well).

As such, it's best to utilize systemless solutions such as Magisk for certain purposes. You can also try MagicGapps module which allows you to add GApps systemlessly even if your GSI doesn't come with one (though I should say that those that do usually come with stock-level features, which includes Chrome and some other Google stuffs that I usually don't recommend, as there are already good enough open-source alternatives that you can find on F-Droid).
[Sony Xperia XZ Premium ROMs, Kernels, Recoveries, ] Sjll:
New version uploaded and needed to test.
[Sony Xperia XZ Premium ROMs, Kernels, Recoveries, ] wety:
老哥，怎么注销了酷安的账号？
[Sony Xperia XZ Premium ROMs, Kernels, Recoveries, ] wasnty:
thank you so much answer , my phone screen is broken i send services , come back to services i try gsı rom and new binaries
[Sony Xperia XZ Premium ROMs, Kernels, Recoveries, ] Chuckl33:
what's the function of those Experformance Patch?

i never flash those file