
Recently, when I saw the possibility of TWRP recovery for 8T, I started researching and as of today our fully operational twrp is ready. In this description I will tell you how to install TWRP Recovery for our OnePlus 8T devices.
TWRP Properties
- Decyrption works , meaning you can access device files while in TWRP
- Trying to restore Backup/Backup (Applies only to DATA)
- ADB runs while at TWRP
- Decyrption works without formatting.
- Rom flashing is running (OxygenOS flashing is not working yet)
- OnePlus 8T TWRP Recovery > Click
- OnePlus 8T TWRP Recovery Installer > Click
- Adb/Fastboot > Click
- Developer Options and USB Debugging Are Turned On > Click
Step 1
After downloading the TWRP image file, we need to put our phone on the fastboot menu. For this, turn off your phone completely and after the phone turns off, press and hold the VOLUME DOWN + VOLUME UP + POWER key for a while at the same time and you will be entering the fastboot menu. The Fastboot menu is a menu like the one below.

Step 2
When you're on the Fastboot menu, connect your phone to the computer via a USB cable and right-click an empty place while holding down shift while inside the platform-tools folder and say open the powershell window here.
Step 3
After the PowerShell window opens, first give the fastboot devices command, and the response must be fastboot in addition to various numbers. It should come out as follows.

Step 4
After successfully connecting our device, it is time to flash the TWRP image file.
First of all, we have two options here. The first option is if we want to use TWRP 1 time, we can run TWRP via computer only once. Here's the problem: when we want to use TWRP, the computer should always be with us.
- Route 1 – One-Time TWRP
fastboot boot imagedrag

- Route 2 – Permanent TWRP
fastboot flash recovery_a imagedrag
fastboot flash recovery_b imagedrag

If you have done the procedures correctly as above, TWRP will be installed on your device.
Steps to Flash Rum on the TWRP Screen
If you want to switch from OxygenOS to Custom Rom
Format Data is done via Wipe from the TWRP screen, then returned to the TWRP home screen and switch from the REBOOT menu to the other slot whichever slot you are in (e.g. B to A, or vice versa). The Rom is then flashed and the TWRP Installer file is flashed (you can find it in requirements). Root and Gapps are flashed in Magisk and Gapps after the TWRP Installer is installed if desired.
If you want to switch from Custom Rom to Custom Rom
Format Data is made via Wipe from the TWRP screen, then the rom to be passed is flashed and the TWRP Installer file is flashed (you can find it in the Requirements section). Root and Gapps are flashed in Magisk and Gapps after the TWRP Installer is installed if desired.
Required Information
After format data, the files in the device's internal storage appear in the /data/media folder, not in the /sdcard folder.
If your computer doesn't see the device's internal storage after Format Data, boot the device to Recovery from the REBOOT menu and press and hold the volume up and down key at the same time.
