Is it possible to enlarge the system partition of OnePlus 6T using this tool?

[Hamza5]

Hello,

I have some experience with partitioning the disks on PC but on smartphones, I am a complete beginner. Actually, I have a rooted OnePlus 6T running Android 11 (upgraded with OTA updates from the initial Android 9).

I did some stupid actions the last few days and I completely broke Google Play Services. Now most of my applications are continuously crashing because of this.

I just want to flash the Open Gapps to repair it. Unfortunately, flashing the smallest possible Gapps zip (pico) fails with the insufficient space problem on the system partition. I want to resize the system partition but I am really afraid of breaking my phone, especially after taking a look at this issue concerning Qualcomm chips. I didn't understand the topic well so I am afraid.

Can someone please confirm if it works or not so I can proceed or stop?

[Lanchon]

I just want to flash the Open Gapps to repair it

don´t. you'd really mess things up then.

I did some stupid actions

can't recommend any restoration method since you don't describe these actions.

Is it possible to enlarge the system partition of OnePlus 6T

99% probability that you'd brick the device. see #55.

btw, by poking around your phone as root without much care you can easily break your phone with no possibility of restoration. you might not know but some partitions in your phone have nonvolatile info that is different from all other OP6T and if you mess that up you cannot restore their data from other phones and you are totally screwed.

you can loose stuff like the wifi mac address (no more wifi), the ESN and IMEIs (no more cellular coverage), BT mac addr (no more BT), fingerprint sensor calibration (no more FP sensor), etc etc

so before doing ANYTHING, at least backup the relevant partitions of your phone. you'll have to google which ones, but typically at least include the persist partition and a couple of modem partitions.

only then...

if you choose to reinstall your phone, consider https://wiki.lineageos.org/devices/fajita

if you install lineageos, you can start by installing it without gapps, to test everything works to your liking (camera, FP, etc)

then you could try degooglelize your phone with microg:

https://lineage.microg.org/
https://download.lineage.microg.org/fajita/

or install gapps AND WIPE later.