yashsingh1/xdaforums huggingface dataset:
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] tom65824:
is it really sooo simple ?

I tried it according to this method :

But with fastboot flash system I got an error: -> Not enough space to resize partition"

Tried again according to these instructions: https://www.naldotech.com/lineageos-18-for-oneplus-8t-download-install/ but same problem.

Then I did some stupid actions and the T8 was brickt. :-(

Fortunately I was able to restore it to the original state:

[OP8T][OOS KB05AA/BA/DA] Unbrick tool to restore your device to OxygenOS

Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...

xdaforums.com

hmm... I still want to have all the Bloadware away from the T8

Have that also used with my MIX 2S nice to run, even if that is already 2 years ago.

well... I'll try again in the next few days.If someone still has a tip because of the errors above - thanks in advance

KB2003 EU Model... updated to 11.0.7.10. - unbrick to OOS 11.0.5.6
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
Consider not following some random videos.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] kjslabber:
Just use process in op, it's easy. Even get's easier to just update. Read the thread!
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] anarchotaoist:
I have updated to lineage-18.1-20210217_093726-UNOFFICIAL-kebab

and I have the same issue trying to get the fingerprint to work again. This time the fingerprint image will not disappear (it overlays all screens) unless I reboot or log out and back in.

Hopefully it spontaneously works again. Anyone have any suggestions?

Thanks.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] tom65824:
you are right... but as a non-native english speaker, it's easy to overlook and overread things, so it's easier to follow the (step by step) youtube videos.

will try it again (with op) these days and report back

(for now I'm glad that I could restore the original state) ;-)
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] anarchotaoist:
How does one change the fingerprint?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
>$ fastboot boot recovery.img

Where are we getting recovery.img file? It's not in the rom, & TWRP isn't released for 8T yet...
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] chomsky55:
Unzip the file you downloaded and in there you'll find the recovery.img.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
No recovery.img in zip. There's boot.img, not assuming it's the same file
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
hmm?

Archive: lineage-18.1-20210217_093726-UNOFFICIAL-kebab.zip
Length Date Time Name
--------- ---------- ----- ----
0 02-17-2021 10:37 android-info.txt
54059008 02-17-2021 10:36 boot-debug.img
100663296 02-17-2021 10:36 boot.img
1894960 02-17-2021 10:24 dtb.img
25165824 02-17-2021 10:24 dtbo.img
1224816 02-17-2021 10:33 odm.img
342700360 02-17-2021 10:36 product.img
1406865 02-17-2021 10:23 ramdisk-debug.img
1261214 02-17-2021 10:23 ramdisk.img
9752542 02-17-2021 10:26 ramdisk-recovery.img
100663296 02-17-2021 10:36 recovery.img
5080 02-17-2021 10:23 super_empty.img
207687924 02-17-2021 10:36 system_ext.img
1011249588 02-17-2021 10:37 system.img
1004220 02-17-2021 10:33 userdata.img
8192 02-17-2021 10:37 vbmeta.img
4096 02-17-2021 10:37 vbmeta_system.img
1016668464 02-17-2021 10:37 vendor.img
--------- -------
2875419745 18 files
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
My apologies. I inadvertently downloaded from another repository
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
After unbricking with MSM Download Tool & full restore couple times....

Went through OP steps exactly with latest Platform-tools as ROOT (Linux), and every time I get fastboot loop. Also, could not run $ fastboot boot recovery.img without first unlocking bootloader.

Any ideas? Thanks
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] tom65824:
could not wait

and tried it again yesterday ;-)

worked wonderfully. looks first time pretty boring, but will be fine.

thanks for all your work, Luk1337
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OhioYJ:
You definitely need an unlocked bootloader for any of this. I started a a guide in the guides section, maybe give it a look since you are still having issues. It also uses Linux. (Works for Windows users though too)
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] theincognito:
Using magisk hide props module.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
LOS Installed, still does fastboot loop..tried sideloading latest Magisk, still no luck...blah

Fyi. This was a factory sealed new KB2005, & I used the proper MSM Tool to unbrick, 4 times already!

Yes I'm using the latest Fastboot & ROOT when flashing. Out of the box, OOS took all updates prior to flash, unlocked bootloader, installed LOS. Never got past Fastboot even once. Cannot boot to LOS. Period.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
Anyone? No sense in trying it again until there's some feedback.

Device is NOT bricked. Can still reinstall the ROM, just will not boot to LOS...
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] koeksal:
Sadly I can't help you. I have exactly the same issue as you. Did exactly the same like you and also had to recover it with MSN Tool. Only difference is that my device is a KB2003. I let OOS get all updates and used latest Platform-Tools, but after flashing I get stuck in fastboot, too.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OhioYJ:
Did it even boot LOS without trying to install anything else? I notice Magisk says it can't mount system. A new build was just uploaded. I updated my phone and compared my phone to your image and every thing was the same except mine was able to mount the partitions and continued on with the installation.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
No, never booted to LOS. I just tried Magisk later for kicks.

Hearing on other 8T threads, ADB booting with boot.img (not flashing) from the build will make it past bootloop. Worth a try
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] Ankorad:
Just flashed lineage OS and now I got lags in almost every App. Spotify, Radio App, COD Mobile... any ideas??
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OhioYJ:
Wait what boot.img are you flashing? Are you trying to do the old install method (where you install /flash each thing indivually, that will make it bootloop)? The new instructions are (from the OP):

Download the latest build

$ adb reboot bootloader

$ fastboot boot recovery.img

Factory reset -> Format data/factory reset -> Format data ( skip if needed )

Advanced -> Enter fastboot

$ fastboot update {filename}.zip ( use up to date platform tools for this step )
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] Author83:
Is DC dimming working in this rom?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
Exactly per above instructions. Using only latest LuK1337 file. That's what is puzzling. It just goes straight to Fastboot every time
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
Not sure what kind of help y'all expect when you give no info other than "did everything perfect☆" + "boots to fastboot".

Really would it hurt to just post output of all commands...?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] xstefen:
builds are fine if u install it correctly
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] koeksal:
This one ends up in Fastboot, too...

fastboot update lineage-18.1-20210224_183303-UNOFFICIAL-kebab.zip
extracting android-info.txt (0 MB)...
extracting boot.img (96 MB)...
target reported max download size of 268435456 bytes
archive does not contain 'boot.sig'
archive does not contain 'boot_other.img'
extracting dtbo.img (24 MB)...
archive does not contain 'dtbo.sig'
archive does not contain 'dt.img'
extracting recovery.img (96 MB)...
archive does not contain 'recovery.sig'
extracting system.img (964 MB)...
archive does not contain 'system.sig'
archive does not contain 'system_other.img'
extracting vbmeta.img (0 MB)...
archive does not contain 'vbmeta.sig'
extracting vendor.img (969 MB)...
archive does not contain 'vendor.sig'
archive does not contain 'vendor_other.img'
--------------------------------------------
Bootloader Version...: unknown
Baseband Version.....:
Serial Number........: xxxxxxxx
--------------------------------------------
sending 'boot_b' (98304 KB)...
OKAY [ 2.870s]
writing 'boot_b'...
OKAY [ 0.545s]
sending 'dtbo_b' (24576 KB)...
OKAY [ 0.721s]
writing 'dtbo_b'...
OKAY [ 0.158s]
sending 'recovery_b' (98304 KB)...
OKAY [ 2.990s]
writing 'recovery_b'...
OKAY [ 0.291s]
sending sparse 'system_b' 1/4 (259064 KB)...
OKAY [ 7.947s]
writing 'system_b' 1/4...
OKAY [ 0.567s]
sending sparse 'system_b' 2/4 (258272 KB)...
OKAY [ 7.716s]
writing 'system_b' 2/4...
OKAY [ 0.460s]
sending sparse 'system_b' 3/4 (258272 KB)...
OKAY [ 7.987s]
writing 'system_b' 3/4...
OKAY [ 0.489s]
sending sparse 'system_b' 4/4 (211956 KB)...
OKAY [ 6.572s]
writing 'system_b' 4/4...
OKAY [ 0.424s]
sending 'vbmeta_b' (8 KB)...
OKAY [ 0.001s]
writing 'vbmeta_b'...
OKAY [ 0.003s]
sending sparse 'vendor_b' 1/4 (262140 KB)...
OKAY [ 8.106s]
writing 'vendor_b' 1/4...
OKAY [ 0.594s]
sending sparse 'vendor_b' 2/4 (262140 KB)...
OKAY [ 8.210s]
writing 'vendor_b' 2/4...
OKAY [ 0.489s]
sending sparse 'vendor_b' 3/4 (262140 KB)...
OKAY [ 8.044s]
writing 'vendor_b' 3/4...
OKAY [ 0.476s]
sending sparse 'vendor_b' 4/4 (206420 KB)...
OKAY [ 6.424s]
writing 'vendor_b' 4/4...
OKAY [ 0.396s]
Setting current slot to 'b'...
OKAY [ 0.031s]
rebooting...

finished. total time: 72.565s
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
It skipped like half of files... What's the output of fastboot --version?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] koeksal:
You're right...I was sure I updated platform-tools last time...:ROFLMAO:😒

Now trying with fastboot version 31.0.0-7110759 it boots as expected.

Thanks for that hint.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
That's encouraging. At the time I flashed, latest platform tools were r30.0.5 (Linux); there's no r31.0 out for that OS yet.

[update] No r31.0 at official SDK site, however XDA does have it for Linux!

Maybe the OP can update link to the version that works so this doesn't happen to others ;)

Will report back later after trying it again with new tools
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
r30 should have worked too...I think?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
I agree it should. But my log was same as koeksal, lots of files missed.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
Nope. Still goes to fastboot loop :(

-----------------------------------------------

root@xxxx:/home/xxxx/platform-tools_r31.0.0# fastboot update lineage-18.1-20210224_183303-UNOFFICIAL-kebab.zip

extracting android-info.txt (0 MB)...

extracting boot.img (96 MB)...

target reported max download size of 268435456 bytes

archive does not contain 'boot.sig'

archive does not contain 'boot_other.img'

extracting dtbo.img (24 MB)...

archive does not contain 'dtbo.sig'

archive does not contain 'dt.img'

extracting recovery.img (96 MB)...

archive does not contain 'recovery.sig'

extracting system.img (964 MB)...

archive does not contain 'system.sig'

archive does not contain 'system_other.img'

extracting vbmeta.img (0 MB)...

archive does not contain 'vbmeta.sig'

extracting vendor.img (969 MB)...

archive does not contain 'vendor.sig'

archive does not contain 'vendor_other.img'

--------------------------------------------

Bootloader Version...: unknown

Baseband Version.....:

Serial Number........: xxxx

--------------------------------------------

sending 'boot_b' (98304 KB)...

OKAY [ 2.433s]

writing 'boot_b'...

OKAY [ 0.368s]

sending 'dtbo_b' (24576 KB)...

OKAY [ 0.606s]

writing 'dtbo_b'...

OKAY [ 0.093s]

sending 'recovery_b' (98304 KB)...

OKAY [ 2.440s]

writing 'recovery_b'...

OKAY [ 0.280s]

sending sparse 'system_b' 1/4 (259064 KB)...

OKAY [ 6.442s]

writing 'system_b' 1/4...

OKAY [ 0.526s]

sending sparse 'system_b' 2/4 (258272 KB)...

OKAY [ 6.428s]

writing 'system_b' 2/4...

OKAY [ 0.432s]

sending sparse 'system_b' 3/4 (258272 KB)...

OKAY [ 6.477s]

writing 'system_b' 3/4...

OKAY [ 0.423s]

sending sparse 'system_b' 4/4 (211956 KB)...

OKAY [ 5.254s]

writing 'system_b' 4/4...

OKAY [ 0.362s]

sending 'vbmeta_b' (8 KB)...

OKAY [ 0.001s]

writing 'vbmeta_b'...

OKAY [ 0.004s]

sending sparse 'vendor_b' 1/4 (262140 KB)...

OKAY [ 6.466s]

writing 'vendor_b' 1/4...

OKAY [ 0.545s]

sending sparse 'vendor_b' 2/4 (262140 KB)...

OKAY [ 6.496s]

writing 'vendor_b' 2/4...

OKAY [ 0.432s]

sending sparse 'vendor_b' 3/4 (262140 KB)...

OKAY [ 6.502s]

writing 'vendor_b' 3/4...

OKAY [ 0.422s]

sending sparse 'vendor_b' 4/4 (206420 KB)...

OKAY [ 5.160s]

writing 'vendor_b' 4/4...

OKAY [ 0.352s]

Setting current slot to 'b'...

OKAY [ 0.030s]

rebooting...

finished. total time: 59.026s

root@xxxx:/home/xxxx/platform-tools_r31.0.0#
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
You know you need to do `./` when attempting to execute a file from $PWD? Otherwise it'll attempt to find the executable in $PATH which may as well happen to be from old distro pkg...
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
Where is that in the instructions? I don't see it
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
Nowhere. I assume that people who use Linux/Mac know that shell doesn't work the same way as on Windows.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] koeksal:
You could try to run fastboot --version and ./fastboot --version in your platform-tools directory and compare the output.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] OTAx1:
Adding ./ did it. Thanks! :cool:
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] anarchotaoist:
Um, I am probably an idiot, but I have the magisk hide props module installed. I cannot find any option to set fingerprint though! It only has a toggle on/off switch! What am I missing?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] jwarrior319:
You need a terminal emulator app or use adb shell from pc. Enter su in the shell terminal and then props. There youll get all the config options.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] kjslabber:
Search for thread on how to use the mod. You need a terminal emulator app to do.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] pacman366:
Just got my Oneplus 8t (KB2005), did a fresh install of lineage-18.1-20210224. A every things been perfect aside from few things I've noticed,

- I cant authenticate against WPA2 Enterprise wifi networks (PEAP+MSCHAPv2). Standard WPA2 passphrase networks work fine. (could be related to this, though I can still see the "Do not validate certs" section )

- The fingerprint reader doesn't work

- My Total Wireless (Verizion MVNO) sim goes undetected in LOS. It's detected in OOS. Switching to a GSM sim (Cricket) in LOS seems to work fine.

I've confirmed these items to work in OOS. I was wondering if anyone else has come across issues like this? should I be flashing any specific modem, vendor or firmware's prior to my LOS install? I will try to gather some logcats later on today.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] N3CR0S1S89:
I'm having the same issue with my Verizon sim. Works fine on OOS but once I flashed to LOS the phone could no longer use the VZW sim which would be fine if it were just data but the VZW sim is my work number so after spending the better half of the day trying to get it to work i flashed back to OOS which again is working fine. Anyone else having these issues with Verizon?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] pacman366:
Updated to lineage-18.1-20210304, My total wireless sim still goes undetected. Getting error "No Sim Card - Verizon Wireless" in notification bar when the sims in use. I attached a logcat of the phone booting.

As for the other issues, Fingerprint reader works, guessing my fingers were grimy or something when I initially went to set it up. Radius WiFi thing was a non-issue, it seems you need to import the radius servers CA on android 11 in general and this was intended by design by google and never merged into OOS, but was merged into LOS.

Thanks Luk1337 for all the work you put into this rom. Its rock solid and my daily driver. I will be making a paypal donation.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
You're the first person who ever posted verizon logs without being asked to (wow!). Anyway, it's broken on all OnePlus devices I happen to maintain on 18.1.

There might be some CAF patch that happens to fix it but it's kinda not fun to track it down when I have no means of testing it locally.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] thegoodstuff:
So Sim Cards doesn't work and with this Mobile Data also?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] pacman366:
Understandable. I'd be willing to be a tester for fix builds if that's even possible. Otherwise i'm fine with staying with Cricket. Thanks again!
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] kherio:
I have just flashed lineage-18.1-20210224_184348-UNOFFICIAL-kebab-gms.zip right now and it seems to work fine. At the moment the FP doesn't work (I hope i will be solved in a future build...)

I will test the rom it and I'll put the results here.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
Join IRC channel and I'll maybe think of something.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] pacman366:
USA GSM Carrier Sim's work (Tested with Cricket). It just seems like Verizon (Total Wireless) MVNO carrier sims don't at the moment. No data, No calling. Its strange, I cant even disable or enable the radio when my Verizon MVNO carrier SIM's inserted.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] kherio:
Ummmm I'm stuck on the lineage logo.... I cannot reboot to fastboot or recovery... any ideas? :)

Or is there an option to flash again stock?

PD. I just solved with the magic keys combination...
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] Nixsuki:
Hi Sir Luk,

Im in the 18.1-20210304-UNOFFICIAL-kebab

All works fine excepts battery profiles. It's indicate that 3550 mAh please see below attachments.

Also May I know that is OTA survival for gapps and magisk works even it's update flashing via adb?

Thanks in advance.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] anarchotaoist:
Hi all!

I updated to lineage-18.1-20210307_234058-UNOFFICIAL-kebab.zip

and all was fine,

but as usual I patched the boot.img - after which I should just need to toggle on the microg swithces and back in business!

Rebooting with the patched boot would not boot. After 4 attempts to get back in fastboot it eventually booted.

I now however have no signature spoofing and microg - so I did these again and flashed them through Magisk - but it rebooted with no spoof or microg! hmmm. ?

What could I be missing here?

SOLVED: i just noticed all the magisk modules were un-enabled! Weird! I toggled them back on and after a reboot all is fine again! :p
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] anarchotaoist:
On the new ineage-18.1-20210307_234058-UNOFFICIAL-kebab.zip build

sound appears to be working properly!

No more distortion! Yay! 😀 Thanks Luk1337! 🙏💪

The only missing piece now is the fingerprint 👇- but this usually works for me after a 3-6 hour delay after updating. :giggle:

I shall have to make a donation soon - but bed now!

😴
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] darklimits:
did you do anything in particular. Mine is stuck in bootloop. Boots fine without patched image.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LikeaFlowingRiver:
Can the maintainer change the height of the text in the status bar without changing the height of the status bar? The text in the current rom is not aligned with the front camera, although the status bar is aligned.

A small change can instantly save my obsessive-compulsive disorder. As far as I know, both PE and Evolution X have made such changes. At the same time, they are also aesthetically standardized. Thank you for your work. If you can adopt my suggestion, it will be greatly appreciated.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] anarchotaoist:
I held down the power + up + down simultaneously to get into fastboot, but it kept getting to fastboot for a slit second and then trying to boot up again. On the 4th or 5th try it just booted without getting to fastboot.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] yyws2012:
How do you get signature spoofing? Nanodroid-patcher seems not to work.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] anarchotaoist:
I followed these instructions:

https://www.reddit.com/r/MicroG/comments/kpomfc
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] darklimits:
had to factory reset and than it worked. Thanks.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
Sorry but no, I hate status bar top padding.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LikeaFlowingRiver:
Okay, everyone has different preferences. It's understandable. Thank you for your answers and contributions to OnePlus 8T.:D
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] abalam:
@LuK1337 What gapps packages I need to build this rom for my device?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LikeaFlowingRiver:
https://xdaforums.com/t/arm64-gapps-android-11-nikgapps-31st-dec-2020.3915866/

this will be worked
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] abalam:
Tnx but wanna build in the gapps
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LikeaFlowingRiver:
Just flash in the recovery, very simple, or Recommend to use PE/evolution x/Havoc/crDroid gapps inside
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] Nixsuki:
Hello Sir @LuK1337 ,

It is possible to have a local update thru updater without PC?

Thanks
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] Dr. Mario:
I hate to tell you, but TWRP isn't ported over to OnePlus 8T yet, and it probably never will, so of course you need to have computer handy. Of course, OS updating actually carries the risk of bricking the phone, so you definitely will want the PC ready in case it goes south.

I have learned my lesson the hard way when I accidentally bricked the modem (don't flash any OnePlus 8T modem firmware blindly, you will brick it, I have bricked it already so I had to borrow a Windows laptop because my laptop doesn't have Windows installed on it, as I am a Linux fanatic, so...) so always have Windows computers ready... You will be glad you did.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] Nixsuki:
I think you didn't get the point. The topic here is the Lineage Recovery.

AICP managed to use updater to flash the latest build from ported lineage recovery yeah it is, no need computer at all. This in an advantage even without TWRP yet.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] jruddyse:
Good day. I seem to be stuck in the fastboot loop. I have updated to the latest version of the PF tools listed in the forum and I have set each command to use ./. I have to admit I am a noob when it comes to flashing, but I am comfortable around Linux.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] LuK1337:
Not enough space in /tmp or $TMPDIR?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] jruddyse:
Thank you. ran export TMPDIR=/home/xxxxx/temp_tmp and fixed the issue, LOS installed without issue.

Note for others: I am running Debian 10, default /tmp was 1.8g
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] chomsky55:
You probably have 4GB of RAM. Usualy /tmp is half of your RAM.
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] allentown0406:
did it support dc dimming?
[OnePlus 8T ROMs, Kernels, Recoveries, & Other Deve] Raza Qadri:
bud you're really into dc dimming xd