yashsingh1/xdaforums huggingface dataset:
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Yes it does, Magisk is retained everytime.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
Not just then for me. I booted to TWRP, flashed r11 and rebooted. Lost Magisk and couldn't boot into TWRP to flash it again. Had to fastboot into temporary TWRP to flash Magisk again.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
That is very weird because I flashed FK a few times and I always kept Magisk.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Razerbann:
Same here! And btw, thank you so much for this kernel [MENTION=3292224]franciscofranco[/MENTION], it's working like a charm!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
What Magisk version are you on?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Nizur:
Are you on stable or beta?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Razerbann:
OOS 9.0.2 Stable
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
The latest beta, 17.3 (17302).
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Mandraker64:
Forgive me my stupidity :) But is this kernel more battery friendly then the stock one, even without any tweaks?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
Probably, but there's only one way to try! :)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Mandraker64:
I have the kernel installed without any tweaking and I have no comparison to a tweaked kernel, I was just wondering if this kernel is better for the battery, and if it is untweaked, then why?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
Stock it's already tweaked and it's meant to have the best settings. It's just a lot of "under the hood" improvements so it's hard to enumarete them. Let's just say it's full of small optimizations.

If you want more details, feel free to check sources. All the kernels on the OP6 are open source AFAIK.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] magnamentis:
some devs explicitly said to flash 17.1 stable, means some roms and/or other pieces of software don't take 17.3 well apparently.

that said i have no issues with 17.1 and blue_spark twrp running 9.0.2 stable
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] b4bass:
Having issues as well...

Using r11 + magisk 17.1 + latest blue-spark (86).

Im stuck at the booting recovery screen
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Glsoto:
Why display values like saturation do not stick after boot ??. I have adaptive mode selected. On 9.02 stable
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] roterbuntstift:
Im not an expert....but is it possible, that the bluspark twrp is responsible for the issues? and My 2nd question: does r11 supports OOS 9.0.2? :)

Greetings to all of you :)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Probs a bug. I'll double check if I focked something up.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
Read first five lines of the thread... Yes it does. Just expect your recovery to not boot. So I'd recommend you to backup your current kernel in case you need to access recovery.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Burt Squirtz:
it's definitely not blue Sparks TWRP that's causing the issue. it's Franco kernel. it does indeed prevent TWRP from loading which is quite scary. to back out of it, I actually went into Franco's kernel updater, and manually flashed blue Spark kernel. I then dirty flashed op6 beta and blue spark kernel again to be safe. really scary to not be able to access recovery.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
It sounds scary but actually you'd just have to use fastboot to flash another boot img (kernel) so it's actually not very risky.

Edit: or directly OOS stock img then recovery.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] osm0sis:
Okay folks, with further testing there does seem to be an issue, both with blu_spark TWRP and the official 3.2.3-1. I'll get in touch with [MENTION=3873953]eng.stk[/MENTION] and [MENTION=3292224]franciscofranco[/MENTION] and see if we can figure it out quickly.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
Did Franco? No. 17.3 works fine. It's just the kernel. No idea what causes it, as the rest of the performance is fantastic.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Mandraker64:
Hi All,

If I understand correctly I should not boot recovery because chances are I will get stuck?

I have 17.1 and blue_spark twrp running 9.0.2 stable.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
You can try, and just restart the device by holding down the power button.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
Yes
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Mandraker64:
I did, and I got stuck. So I rebooted holding the power button which worked. Thanks!

So whats the workaround for now? Installing the Blu_Spark kernel with ADB?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
It would be fastboot not Adb. Nobody has tried afaik but you can try and let us know. Otherwise wait for an update or use another kernel if you want to access TWRP (you can flash kernels with Franco kernel updater for example)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Mandraker64:
I think I meant fastboot through ADB , I'm sure you can tell I'm a noob with all this stuff :) If I would fastboot (or use the Franco kernel updater) the stock OOS kernel I would lose TWRP and root, right?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
No, flashing kernel doesn't have any impact on TWRP and root.

It's only if you flash the full system that you will have to reinstall TWRP and magisk.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Razerbann:
I don't think that root (Magisk) is retained after flashing OOS kernel.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Chheang101:
Kernel problem

Bro when i install the kernel on my device my blu spark twrp stopped working when i boot into it.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] egandt:
Great to see this for the 6, been using it on the 5T forever

ERIC
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] :
Well ok then, anyways if it's not going to be added there's not much point in continuing this conversation then. Can't see how it hurts to have a choice for some users, but it is your kernel :)

Side question, why can't I apply a gpu underclock in battery life labs section? Hitting apply does nothing. Changed it manually but thought you might want to fix that for other users maybe.

Cheers and thanks for the great kernel overall.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Thanks for the report, will be fixed :)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
When you get your first cycles in post your battery stats please, I'm curious.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Poloasis:
Will do. So far looking good.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] :
Yep, will send screenshots.

Hoping it's better than Blu spark, an hopefully it can improve even more in the future.

Also, temperature notification is broken, check attachment.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] jeiem21:
Hello, if kernel is flashed, will I able to do OTA updates onwards? Thanks!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Blunts47:
Isn't that number correct? 38.3° C?

Testing kernel right now will update how battery life goes
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] :
Well I guess if you just imagine a decimal there, but currently it looks like 3 thousand degrees lol

---------- Post added at 12:37 AM ---------- Previous post was at 12:35 AM ----------

Yes, you can either flash the full OTA zip in TWRP and then reflash magisk and the kernel, or you can use the built in system updater app, and then use the Magisk app to reinstall Magisk to the second slot before rebooting, and then you'll have Magisk root but no TWRP, and probably no custom kernel either. Which means you'd have to reflash TWRP kernel and Magisk using a PC and fastboot.

So it's probably easier to just flash the full zip in TWRP which you can get from the Oxygen Updater app, or after a while it's posted here.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Yes, it'll be better.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] jeiem21:
If I flash the full OTA zip via TWRP, will my apps and data on the internal storage will not be deleted also? Thanks.

How about on the Settings > System Updates, can i use ota or receive there also even though the kernel was flashed? Ty.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
No they won't be deleted.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] jeiem21:
Thank you! Been a fan since samsung days. :)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Samsung days?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Taebom:
Samsung Galaxy Nexus maybe?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] UnbracedTundra:
First battery cycle after charging to 100%. Lost 4% battery overnight. Probably going to be the first phone I have owned which will hit 6H SOT consistently. :good:

PS I am surprised to see Facebook at the bottom of the usage list :laugh:
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Colvrtc:
Hello, I supported your work by buying the app. I like the kernel for sure, but how do I get Tasker to automate the performance profiles? I followed the directions you had on Tasker automation but I can't verify that it actually is changing the performance profile.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
:highfive:

Thanks!

Hmm it should work, the profiles should be selected when they're changed. I'll check.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Colvrtc:
Yeah I thought the same. But it doesn't change in the kernel app. I intended it to change to the power saving profile when I am at work. But thanks for checking it out.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] DevisG79:
That's a known bug. Devs are working on it. You have to flash another kernel from fkm to get twrp working or wait for the next update.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] ashok:
The problem is the app open. But when we select performance profiles or any other setting it just stucks. There is no response from we have to close it again to reopen it.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] magnamentis:
that's not the point, you recommended 17.3 without knowing which rom each user is running and some roms don't do well with 17.3, hence

if one recommends a magisk version it should be stable for now.

it's not about who is right but about what is right (best for all readers) and best is to avoid any possible hick-ups for all readers, hence 17.1 it is, no matter wha works for me or for you.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] vicky5696:
Did anyone got the solution for phone freezing in gcam or stock cam

Was wondering if the problem was solved since there was no discussion regarding the gcam freezing since few days.

Btw love your kernel
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] osm0sis:
Little update, it's definitely not AnyKernel2 itself, or the added magisk* binaries, so that narrows it down to something different about the Image.gz or dtb. Pretty wide still but it's progress. :good:

Edit: Narrowed it down to just the Image.gz; the dtb seems fine. [MENTION=3292224]franciscofranco[/MENTION] should be able to take it from here. :)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] magnamentis:
i assume [MENTION=4684315]flar2[/MENTION] is using anykernel as well and there are not the slightest glitches or issues, using same twrp from blue.... just for your information while i as well didn't have problems with this one, there must be an additional factor that only plays out like this in combination.

the only reason why i mentioned EX is that no other users of his kernel have the issue, not only me, while apparently something with this kernel triggers the problem for more users which doesn't meant that anything is wrong, as i said, could be a combo of things that only iointly cause that specific problem.

thanks for looking into it ;)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] osm0sis:
Nah it's something different in the kernel source code here causing the issue.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Alright, after 8 straight hours trying to figure out this recovery problem, I just found the issue. It's 7am and I'm exhausted, I just want to get into my bed and wrap my arms around my wife. Will push r12 as soon as I wake up. Apologies for any inconvenience.

Also next FK Kernel Manager update will have the haptic settings, I finally found the paths.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
Thanks mate! Let us know what was the issue, but first, get some sleep indeed!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] PiraTan:
Great news! Now first of all rest yourself, spend some time with your wife, and everything's ok.

We'll wait patiently your next update!

Thanx ad always!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
Get some well earned sleep! Thanks for your hard work and commitment.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] timebandi:
Great work! I was not affected by problems but do take care of your wife. Family first :) Hope you get a good nights sleep.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Dito13:
You're the best!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
r12 is up with the fix for booting to flashed custom recovery. Confirmed & tested here multiple times. Get the zip from the OP or just auto-flash with my app hassle free here -> http://get.franciscofranco.xyz

As usual [MENTION=4544860]osm0sis[/MENTION] helped a bunch to see if the issue came from the building process or something related to his AK2, so kudos for him.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Mandraker64:
Got it and Blu_Spark TWRP is working again! Thank you Francisco!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] raptax:
Works great now, amazing work thank you
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] abdieel_:
The Best

Thx Franco, your Kernel is the best now!...
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] BibinBoseAmbat:
TWRP boot confirmed and working good, ??
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] gnam:
But now performance profile in the fk app doesn't works, at least in my case "your kernel doesn't support this feature...."

reflashing kernel doesn't solve the bug, at least in my case.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
You need to flash the Kernel after flashing Magisk, and not the other way around.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] gnam:
[MENTION=3292224]franciscofranco[/MENTION] Flash magisk 17.3, then fk kernel and reboot....performance profile in the app still not working.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
You're right. Fix incoming.

EDIT: re-uploaded r12, flash away.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] roterbuntstift:
Nice! ? Well done! :) and enjoy your weekend :)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] raptax:
Gcam is supposed to work with this kernel ? Because it doesn't work for me
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Google Camera is not Kernel related.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] raptax:
There can be no impact? With the kernel I had before there was no problem but with this one there are lags and some freezes
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
r12 works with TWRP. Very smooth. I noticed the 2.1ghz cap on one of the clusters has been removed, now up to max ghz. Any particular reason?

It works fine here. Clear the storage and try again.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Can you show me the date on the Kernel compilation please?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] gnam:
[MENTION=3292224]franciscofranco[/MENTION] what do you think about the Magisk's bug with charging on power off of the device? I mean the screen freezed on the unlocked bootloader advice without going in the charging screen when device is powered off.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Dunno, don't really care about it.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Re-uploaded r12, fixed the issue, thanks for reporting :)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] meiax93:
Yes, that's was Magisk issue pal. Hope topjohnwu working on it.

Canary Builds still have that issue, but someone on OnePlus 5 or 5T (use custom kernel) say their device can power off charging. ?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] osm0sis:
Yup, my OP5T poweroff charges fine, the issue is only with system-as-root devices like the OP6 I think. It could also be a combined issue between TWRP and Magisk; has anyone tried just stock boot.img + Magisk to see if poweroff charging works? It definitely doesn't work with stock boot.img + TWRP + Magisk.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Honestly, who the fock charges the device while powered off?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Glsoto:
Well.a lot of people do.. let's try a modify boot image with magisk but without twrp.. keep you posted
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] etaPlease:
I applied battery profile from fk app but it apparently changed no values. Same cpu boosts and max freqs. Did you not add the profile yet or is it a bug?

Also, do you use 576 as min freq because it comsumes as much as much power as 300? Just curious
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] tanish2k09:
Just tried this with stock boot.img on 9.0.2 with only magisk.

Used the magisk manager's boot image patcher on the stock boot.img to get it so there's nothing twrp-related in it.

Power off charging was stuck at bootloader unlocked warning without any visible LED activity (it might be charging but definitely doesn't look like it)

Just curious, would it ever charge again if the juice ran out completely?

Or would it be stuck in this cycle :

Plugged in -> bootloader warning -> stuck -> battery drained again because of screen and stuff -> power off -> still plugged in anyways so start once again -> repeat...

PS : FK r12, lovin' it so far.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Nice catch, something did really change with Pie regarding selinux contexts on this type of files. I'm on to it, already pinged [MENTION=4544860]osm0sis[/MENTION] on this, he's the master.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
https://media3.giphy.com/media/l3V0sNZ0NGomeurCM/giphy.gif?cid=19f5b51a5be7e0226e512e5141ab695e
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] gnam:
Me :D
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
Noticed severe lagging upon normal operation of my phone this morning. Didn't have issues last night with r12, so could be something else, but I did clean flash my phone a couple of weeks ago and have had virtually no issues.

Log below for after a restart due the freezing:

https://drive.google.com/file/d/1JEcb10EESf5Mcqi4sXu6PEVB_3FIW4Im/view?usp=drivesdk

Log below before that, after the first bad freeze I had:

https://drive.google.com/file/d/1KsdDeUcJBgVF7jYNzi9ZxN9Tx5tuITjE/view?usp=drivesdk

Do let me know if at all my logs have been useful recently.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] etaPlease:
And what about the 576mhz instead of 300? Knowing would give me peace of mind. Do they consume eqaul amount of battery so it's wiser to use the higher clock?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
Had to uninstall, kept getting freezes. Back on Flash for now. Will try next release.

Feel like Franco has always had this.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Glsoto:
Installed r12, and I still have the same issue, display values do not stick after a reboot..
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] trustkil:
anyone experience fingerprint not responsive after lock for some period?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] BibinBoseAmbat:
Yas , and occasional app freeze, Camera and YouTube froze once.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] trustkil:
no app freeze on me. just the fingerprint issue
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
I have that on stock kernel regardless.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
That's the default that comes from Qualcomm.

Should be fixed for the next app release. Sorry for any inconvenience.

Nope.

I've had that with stock Kernel too. Dunno what OnePlus is doing.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] enerGy:
This is 9.0.2 in general and needs fixed it seems, its happening to many users throughout threads and chat groups. Some have replied to this and other kernel threads thinking its them but its not
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Glsoto:
This is stock kernel related and not Franco kernel, RO 9.02 have this issue
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] franciscofranco:
Yeah 9.0.2 is slightly focked.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Pepinow:
Hello, sorry for my bad english.

I can't make update r12 because my TWRP recovery still block.

How i can make a update without FK app ?

I read so many guys are the same problem but don't explain how to fix it.

Thanks for your help
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
As far as i know, if you don't have recovery nor FKU, you can't update your kernel. Can't you fix your recovery? It shouldn't be that hard. Try to reboot to bootloader, type "fastboot boot blusparkrecovery.img", and then flash blusparkrecovery.zip from the recovery you booted in and there you should have it back.

Otherwise you could try Flashify but i've no idea if it still works on Pie since the app is abandoned.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Pepinow:
So if i can't paid i can't make update... no comment :)

I don't have bluspark but TWRP enchilada, but still the same things to do, right ?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
Flash in TWRP, Magisk after to be sure.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Pepinow:
I can't boot TWRP, this is my problem :/

---------- Post added at 09:47 AM ---------- Previous post was at 09:43 AM ----------

I try to fastboot img but i enter in crash dump mode :/
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Tomatot-:
Are you joking? Can't pay can't update? You're getting this kernel for free, is it not enough? You know how much time is needed to make a kernel like this one?

You have at your disposal all the tools you need for free, they all work great, there's only one tool which is not necessary but makes things easier that cost a few bucks and you're not happy? I don't think you should even bother try to flash any kernels or ROMs.

It's not franco's fault if you can't make your TWRP work. Btw, it's not the place to discuss on how to fix your TWRP. Look for threads with the same issue as you or open one.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] habylab:
Did you make sure the version number of the TWRP is correct when fasbooting? I'm the instructions, the version number is outdated - copy it from the latest downloaded version. Hope that makes sense.