[OnePlus 8T Questions & Answers] pr3dicament:
Nope.. Terminal Emulator is actually recommended. With Termux, you are required to use root access for props to work.

with Terminal Emulator, you can just type:

props

and then it'll load. no "su" necessary. That's termux. I've had some issues that these people are talking about with my OnePlus 8T (KB2005, unlocked completely).. I'll try Termux just to rule this out, but this is highly doubtful as to whether or not safetynet passes based on this--it's attempting to modify the same values. Anyway, when I unlocked that bootloader on a stock rom, CTS Profile started showing as false. So I did get the stock on there correctly and it initially passed with a LOCKED bootloader. There's an alpha TWRP that you can actually flash if you want. There's a couple others where you can only boot it.. there's a lot of "only's" here.. and I couldn't get it going with any of the apps mentioned, including ditching EdXposed and deciding to try LSPosed, but that + XPrivacyLau didnt seem to help me. Maybe I'm doing something wrong. From what I can tell I've done everything right and I've got quite a bit of experience attempting/doing this. Sometimes Device SImulation and forced BASIC ATTESTATION can be a lifesaver.

On my OnePlus 6T, I don't have this problem.. then again it's on Android 10. I can't even get a proper root explorer for Android 11. I seriously can't stand what they did to Android 11.. it's so ridiculous how many apps are now incompatible. Root Explorer Pro was possibly the best Root File Manager I've ever used and I've used it since day 1.

Anyway, I'm gonna give all of this a shot in different order.. and this time I'll see if Magisk can do the trick (last time it was on some different firmware and i just now was able to get it going by flashing via Fastboot in Linux). It's the manual way (payload dumper) as opposed to MSMDownloadTool -- which could be used via a VM.. and maybe even better than using Windows tools where you literally have no idea what you're actually doing. I'm just saying. Android is a linux distro, technically.. and we're trying to use just basic root apps for Android 11, and they don't seem to work.. it's insane. They did something with the partitions and it's apparently having issues even mounting R/W even with Magisk giving it root permissions. Btw, Magisk Canary is now outdated, as far as I can tell? Or it's just nowhere to be found when it comes to versions. Either way, I have tried multiple. So I'll try again in a different order.

Sorry for the long post. I've just had it. I've been working on this for a WEEK non stop.. 5-6 days and this is the first sign of progress (reverting via fastboot via Linux, which is the same thing as the MSMDownloadTool ultimately... without the hassle of finding it)

Let me know if there's anything else.. cause I've tried just about everything out there. Remember, for me, so far... unlocked bootloader = CTS Profile failure.. but locked bootloader + stock rom? Passed. I don't know. Before it wasn't passing with a stock rom that came with it so that drove me nuts and made no sense, hence me saying "progress" ... heh. Anyway.. Please let me know if you guys do find anything that works for it. I'm at my wits end. There's basically almost zero support for the 8T but plenty for the 8 and 8 Pro. So that also gets on my nerves. Sorry, once again, for this really long post. Some of it is just venting and I'll update if I get somewhere with it.