Official OTA Oreo How Can I Install TWRP and Root?

[TheoKondak]

Hello dear community. Today, i just recieved my OP3T and I am super happy. Since I am a manian with new android versions + root + xposed, what i did is charge my new device and then start experimenting.

Firstly, i used this tool (https://forum.xda-developers.com/oneplus-3t/development/toolkit-oneplus-3t-toolkit-unlock-t3507729) to unlock bootloader, flash TWRP.
Then I used some VPN to change my location to Canada, and get the Oreo OTA.

Oreo OTA replaced TWRP, so I did some research to find out if its safe to reinstall TWRP 3.1.1, but i stumbled uppon some contradicting opinions both for TWRP and for Root. In the guides I read, some users commented that it might be very dangerous to either reinstall TWRP and/or supersu, so since I am not a guru, and my technical knowledge is kinda limited, I thought I'd create this thread before doing something stupid.

So, is it safe to reinstall TWRP in the latest Oreo OTA? (ONEPLUS A3003_28_171116)? Which version of TWRP do you suggest?
Is it safe to use the latest supersu?
Also, should i do a factory reset after the update?
I know for sure that xposed is not available for Oreo, so I wont be asking anything for it here.

Thanks in advance!

 

[EatDahPewPew]

For Oreo, the latest TWRP is not recommended. You need the bluspark TWRP for Oreo. Here is the link. https://forum.xda-developers.com/devdb/project/?id=15934#downloads
Careful, there are two Bluspark TWRP, one for nougat and one for Oreo. Also it is unified for both op3 and op3t

I do not know about SuperSU but the beta version of Magisk works on Oreo. The stable version does not work yet. Here is the link for beta https://forum.xda-developers.com/apps/magisk/beta-magisk-v13-0-0980cb6-t3618589

I am using the beta Magisk and BluSpark TWRP atm. It works fine. I did a clean flash using the full Oreo zip file (1.5gb). I think you can find this as a download on the XDA forum since OnePlus has not put it online yet. DO NOT CLEAN FLASH THE PARITAL OTA.