https://www.getdroidtips.com/download-android-13-gsi/

https://www.droidwin.com/fix-failed-remote-not-enough-space-to-resize-partition/

https://www.youtube.com/watch?v=FrkeiNaF294

https://forum.xda-developers.com/t/the-best-configs-for-gsi-roms.4450223/

https://www.droidwin.com/fix-no-wifi-calls-network-after-root-custom-rom/

https://www.thecustomdroid.com/how-to-extract-android-payload-bin-file/

https://www.droidwin.com/how-to-fix-corrupt-efs-no-imei-network-issues/

------------------------

Best Soulotion So Far:

https://www.youtube.com/watch?v=zgCq2ywoC30

./

fastboot reboot fastboot

fastboot flash boot_a boot.img

fastboot flash boot_b boot.img

fastboot -w flash system system.img

fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img

fastboot reboot

adb reboot recovery

adb sideload ims-q.64.zip

adb sideload Magisk-v25.2.zip

https://treble.phh.me/stable/ims-q.64.apk

------------------------

https://www.droidwin.com/force-120hz-refresh-rate-in-any-android-via-adb-commands/

adb devices
adb shell
settings put system min_refresh_rate 90.0 
settings put system peak_refresh_rate 90.0

------------------------

# unlock bootloader, device will wipe and restart
adb reboot bootloader
fastboot oem unlock

# re-enable usb debugging and again connect through USB with computer
adb reboot fastboot
fastboot erase system

# it will print either Erasing system_a or system_b. In the following I assume system_a was erased; if it was b, change commands accordingly.

# with phhusson GSI, system partition needs to be larger than stock. so delete the product_a partition to make space (see https://developer.android.com/codelabs/using-android-q-gsi#3)
fastboot delete-logical-partition product_a

# when flashing the system, disable integrity checks on startup to allow image to boot
fastboot --disable-verity --disable-verification flash system_a system.img

# wipe again, then reboot
fastboot -w reboot

------------------------

Change Parition (Must Be B):

fastboot --set-active=b

fastboot resize-logical-partition system_b 4210000000

------------------------

fastboot flash modem_b modem.img

------------------------


--AB devices--
fastboot devices
fastboot --disable-verification flash vbmeta vbmeta.img
fastboot reboot fastboot
fastboot getvar is-userspace
fastboot erase system

fastboot delete-logical-partition product_insertslothere
Example
fastboot delete-logical-partition product_a
fastboot delete-logical-partition product_b

fastboot flash system system.img
fastboot reboot recovery

fastboot -w reboot

--A only--
fastboot devices
fastboot --disable-verification flash vbmeta vbmeta.img
fastboot reboot fastboot
fastboot getvar is-userspace
fastboot erase system
fastboot delete-logical-partition product
fastboot flash system system.img
Fastboot reboot recovery