yashsingh1/xdaforums huggingface dataset:
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] DocRambone:
Installed and runs perfect as always with your builds. Nice work. Again :)
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Thunderbolt:
Average sot is comparable to oos?

Wysłane z mojego ONEPLUS A5010 przy użyciu Tapatalka
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Sultanxda:
Can I get a kernel log for this?

It should be better than OOS.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] AdamWill:
Does the LineageOS music player work OK on this ROM for other folks, btw? It doesn't for me; if I queue up several tracks it'll act like it's playing each, but play no sound and almost immediately switch to the next.

I've just been using VLC as a music player instead, which works fine, but wondered if anyone else had seen this.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Randy3011:
I use Shuttle music player. Simpler than VLC widget-wise. I did try the LOS player without any issues.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] mi3x:
upgraded OTA, no issues, had only to reinstall xposed framework. Still the best rom around the block! Thanks!
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Niko991:
I remember when I had OOS that the "Extra buttons" on the side where you are able to choose silent mode etc. it stayed on the mode I chose by having the button on the right position, now with LineageOS I have to pull the button down and back up to have the right mode on if I restarted my phone

Could this be fixed?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Sultanxda:
This should be fixed in the next build: https://github.com/sultanxda/androi...mmit/2fed35f7f8f85b13c8c5349238388c7a0c831d0f
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] cork1719:
So, I had latest OOS on my OP5T with original recovery. I installed twrp -> wiped system and data -> flashed firmware -> flashed latest version of this rom -> flashed Gapps 7.1 arm64 micro -> flashed magisk -> rebooted. I waited for 15 minutes but it was stuck on the lineos logo animation. I turned it off and tried to boot into recovery but it just went back to the bootloop. What should I do now? Can I recover from this?

(I have flashed many roms on my OPO but never had this type of problem before)

Edit: I was able to get into fastboot mode and get into recovery from there. Reformatting data and then repeating the process seemed to work.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] crakerjac:
I created a logcat. PM me where you want to send it... I'm not sure I want to share the entire logcat with the whole world.

I DO have Magisk and Xposed installed. I don't know if that makes a difference to you. The issue I'm having is that the Bluetooth doesn't work on a full restart (Bluetooth is off and unable to enable it). To get Bluetooth working again, I have to shut down and power back on. Sometimes a soft restart will not disable Bluetooth... but that is a bit of a crapshoot. The following line in my logcat is interesting...
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Sultanxda:
Yeah, sorry but I haven't got around to finding out why this happens to some people :/ I think it happened to those running Oreo previously? No idea.

Just PM the whole thing to me.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] cork1719:
Is there any way to theme this rom? Has anyone tried anything and been successful?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] DocRambone:
Old news, nevermind
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Sentinel999:
Thx 4 the update.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] MakeHav0:
Hello boss. I've been using this rom for record time now and I am definitely not planning to change it. This rom is flawless and now I get the hype in this thread about you. :D Few questions though.

1. Can I use substratum or any other theming app? I am afraid that I **** up my setup with some 3rd party app so I just want confirmation.

2. Are delta updates possible? I am using Xposed and tons of modules so I really wouldn't mess with them right now. Even separate flashable updated kernel zip would be awesome since it does the important stuff.

Thanks again for your work. :)

E: Can you add audio control please? I find the volume too high for my headphones and I really don't want to change my kernel since this is the best I have used so far when it comes to battery/performance..
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Sultanxda:
Aaaaaaaaand another update is up.

I don't know anything about theming :P

Sorry but I can't do delta updates.

As for audio control, I'd really rather not add it. You can play with AudioFX to tweak the sound to your liking (just lower the output of all the frequencies to make things quieter).
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] mi3x:
Thanks for the update! Downloading now.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] R.Kade:
I've flashed the update and I've gone into a bootloop. Been going for about 10 minutes now whereas initially installing took 3-4. I updated through the OTA update menu.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] finalista:
is there a way to downgrade from ob4 Firmware back to Nougat without breaking NFC and encryption?

i installed ob4 for testing purposes and now i would like to get back to Sultan. i tried to install Nougat FW from OP (also tried flashing both OOS nougat images) but upon first boot I get that acore crashing. if I ignore and try to open settings it also crashes. I tried again and disabled forced encryption (via flashing no verity zip) and crashes are gone. but as I want to keep encryption I tried to enable encryption again in system settings - but got stuck at encryption process after reboot.

so crashes after first boot seem related to encryption. for me it looks like processes are not able to access data partition and therefore keep crashing. I read that the keystore (for encryption?) changed with Oreo. is there a way to downgrade to nougat keystore?

also NFC broke after reverting from ob4 to nougat. it's not possible to toggle NFC anymore. it's greyed out. looks like OB4 upgraded NFC firmware (which seems not compatible with nougat ROMs) and seems that old NFC firmware is not included in nougat FWs. someone knows where to find NFC nougat FW? or maybe a nougat factory image including all firmwares?

Thx for helping out.

Gesendet von meinem SM-T713 mit Tapatalk
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] wOMPZA:
You need to flash no verity v2 zip when you update i think because that worked for me
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Audrion2013:
Hey Sultan, can you make the rom not dependent on Google apps? I would really like to de-googlefy
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] mi3x:
@ R.Kade - Flashed OTA without any bootloops, as always. The only thing I have to re-install after an OTA update is xposed framework.
[MENTION=6041889]Audrion2013[/MENTION] - you can use microG, no need for gapps, I've been using it since the beggining with [MENTION=4800121]Sultanxda[/MENTION]'s room without any issue. Google free, I use F-droid and the non-foss apps I install with Yalp.

You get all steps in this post. :good:
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] R.Kade:
Thanks for confirming, I assume you have Magisk then? I think I can maybe narrow it down to an overlay APK that Swipe Navigation installs to get rid of the navbar (I wanted to do it a non-GravityBox/Substratum way)

Unrelated but thanks for the link for setting up microG -- I was considering doing it before but I wasn't sure how I would download all of my paid apps, looks like Yalp Store supports it. I did notice that Play services doesn't really drain battery all that much according to BBS and my battery menu -- are you noticing better battery life at all? Currently my battery life with the screen on seems to be better than OOS but my idle drain is definitely worse.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Amrut Parmar:
Is this rom working all fine
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] mi3x:
[MENTION=8614864]R.Kade[/MENTION] - Yes, I use magisk, and to hide navbar completely, I use a magisk module "hide navigation bar" by AndroPlus which is compatible with this rom, and use Xposed Edge to configure swipe gestures. They work nicely together.

As for googleplay, I can't comment on that, I've never used it, so can't compare. My battery is fine, about 6+h SOT.

[MENTION=5134526]Amrut[/MENTION] - all nice and dandy!
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] dsjd:
Amazing Rom! Can't wait for 8.1
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Z4HD:
Why not try official lineageOS 15?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] DocRambone:
Thanks for the update, all running fine.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] MakeHav0:
This is what I call proper ram management. :D Can't wait for 16gigs lol.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
Everything is OK with the last build, thanks a lot [MENTION=4800121]Sultanxda[/MENTION]
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Who.is:
Will it work on OP5 ? thanks for reply.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] andre0005:
No.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] MakeHav0:
For those who can't live without sound control, I've been using 8224Freaks RR Nougat kernel which is also sultanized. Working just fine for me.

http://luis-builds.de/downloads/lineageos/rr/oneplus5t/LuisKERNEL/
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] r3flux:
Does this rom support signature spoofing which is needed for playstore via micro g?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] mi3x:
No, it doesnt, you need to use xposed with FakeGapps for MicroG.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] r3flux:
How about using this? https://xdaforums.com/apps/magisk/module-nanomod-5-0-20170405-microg-t3584928
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Tr4il:
Hey Sultan are you getting anywhere with a 15.1 build or is that not on the table yet? I'm only asking because I'm getting tired of OOS. I'm wanting to switch to a custom rom but if yours is coming soon I'd rather hold out for a bit longer. I can test as well if you need a tester. Thanks mate.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Sultanxda:
I have done absolutely nothing with 15.1 so far ¯\_(ツ)_/¯
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
How much you love that emoticon?! :)

Best
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Sultanxda:
¯\_(ツ)_/¯
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] chenshaoju:
Sorry for my English.

Thank you development this ROM.

After trying this ROM, I found an issue with the gesture.

The gesture is unable to tune off.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Tr4il:
Alright, thanks!
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] :
Does your rom supports Substratum themes ?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Xokoz:
Only legacy-mode AFAIK.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] AdamWill:
Another thing I'm noticing as I use this ROM: is the 'face detection' (whatever that's called) during calls awful for anyone else? For me the screen often comes back on (or never goes off) while I'm talking, and contact with my face causes it to do random stuff like pull down the notification bar and change settings, or just cut off the call.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
Proximity sensor? I guess that is what you are writing about, not for now ATM, but i had a strange issue today, vibration has completely disappear, i had to reboot the phone and everything back to normal, the power of reboot! :)
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] AdamWill:
Proximity sensor, yeah, whatever the thing is which is supposed to make sure the screen is turned off and/or doesn't accept input while I'm holding it next to my face and talking. :P
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
NP here with Prox Sens! ¯\_(ツ)_/¯ (Sultan's Emoticon) :)

I was waiting the right moment to use it!!

(Hoping it is not under copyright :) )

Best
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] AdamWill:
Huh. Maybe I have a weird shaped face? But didn't have this problem with my previous phone (LG G3, running official LOS builds). Oh, well.

Edit: Hmm - I have 'tap to wake' enabled and 'prevent accidental wake-up' *disabled*. Maybe that's the problem. I'll try turning on prevent accidental wake-up....
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
I guess you have a normal face! I have just checked in settings but there is nothing about it, i have too 'tap to wake' enabled and 'prevent accidental wake-up' *disabled*, but i have not this kind of situation...

Best
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] geokilla:
I clean flashed the ROM and flashed the Nougat firmware, but I cannot get it to boot up. I was previously running the latest OxygenOS beta 6 ROM. I wiped and flashed multiple times but to no avail.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] sultan abdullah:
Are you encrypted ? If no you have to do a full format
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
Boot in Twrp: Last BS 8.73

Advanced Wipe: All (no osb-otg)

Format Data: Yes

Reboot Recovery

Advanced Wipe: All (no osb-otg)

Flash ROM, Gapps, Magisk, No Verity v2

Reboot System

Enjoy the rom :)
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] geokilla:
Got it working but it seems 3G doesn't work? That's a huge problem because when I make calls, the phone automatically changes from LTE to 3G as we don't have voice over LTE.

Edit: It keeps on defaulting to CDMA when I change the network under my home profile to 3G. How can I default it to WCDMA instead?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] kristofpetho:
Guys, which camera pp are you using with the ROM? The standard stock one, are something else?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
The camera already in the Rom is a custom one maded by Sultan, and is working good.

If you need something different you can try Arnova8G2' s GCam, with a simple search you will discover lot of links for the Google Camera Port, so you can choose which version to install(read carefully the various instructions on installation and settings).

Best
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] geokilla:
I'm unable to make phone calls because when the network changes from LTE to 3G, it defaults to the wrong band. Is there a way to permanently set it so it'll change to the right bands?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
Honestly I guess I can't help you with that, have you tried to change something in sims settings? The first thing that comes to my mind...

Best
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] geokilla:
Yep I change the "preferred network type" to LTE/WCDMA but then it doesn't stick and it'll change to something different next time.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Xokoz:
Same here. It is annoying how many phone calls I miss because it doesn't automatically change to 3G when I am receiving call. As said, phone calls can't also be made when on LTE.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] AdamWill:
Security Research Labs just came out with an interesting presentation about whether ROMs (they focused on vendor ROMs, of course) actually include all the patches they should, given their claimed security level. They also published an app for checking this, called SnoopSnitch:

https://play.google.com/store/apps/details?id=de.srlabs.snoopsnitch

So, I grabbed that and ran it on this ROM. :) It reports the claimed patch level as 2018-03-05, and reports 140 issues patched, 56 as 'test inconclusive', and 1 as 'patch missing'. That one is CVE-2017-0592: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0592 , which is rated 'critical', so seems like we'd want it to be patched.

Any idea if this is a false positive? Upstream LOS issue? Or ROM issue? Should we report it somewhere?

Thanks!
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
This is what i have by default...
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
Hi, I guess is bettar if you tag the developer for this kind of things...
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] geokilla:
I'll try that and see if it sticks. When I was sleeping, it automatically changed to CDMA so no 3G connection again, meaning missed calls and text messages.

Edit: Still having the same problem. When it changes from LTE to 3G it continues to default to the incorrect network mode. Even after setting it to the same network mode as you.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] geokilla:
I think I just have to flash a different ROM or maybe even back to OxygenOS... I keep on missing calls because I don't know my phone went to the wrong network mode until it's too late.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] geokilla:
After some more testing this weekend, I figured out the 3G network issue I've been having with this ROM. Running stock OxygenOS, I had no issues all day today making calls or text messages, since those functions only work on the 3G band, specifically the WCDMA band. However when I run this ROM, the SIM settings would default to a band that didn't involve WCDMA, thus giving me network issues.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Z4HD:
This ROM is very good that I can't stop to use it.

Also, can add OMS support? I think it is a useful feature, too.

[MENTION=4800121]Sultanxda[/MENTION] Look forward to next update. Thank you to give us many good ROMs, Kernes and more.

Apologise to my poor English.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] SlyUK:
[MENTION=4800121]Sultanxda[/MENTION] As you won't be developing your LineageOS Rom with Kernel for OnePlus smartphones anymore (which is obviously sad news, but you have your reasons and thats fine).

How likely is that you will develop your LineageOS Rom with Kernel for future Pixel/Pixel XL smartphones in the future ?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] kylothow:
:confused::eek:

Source?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] SlyUK:
https://xdaforums.com/showpost.php?p=76423626&postcount=4158
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Sultanxda:
I don't think I'll be building ROMs anymore. The stock ROM on the Pixel is a lot more polished than LineageOS and is very nice. I think I'll just stick to kernels in the future.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] SlyUK:
That's fair enough. Hopefully a Sultanised Kernel then to compliment its Stock Rom, would be nice if possible :)

Edit:

All the best and thanks for your efforts with your development since the OnePlus One.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Aramarth:
Thanks a lot for everything you shared with us during these years. You are cool and one of the greatest, for sure! :)
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Niko991:
I don't know if this is the right thread, but...

I love Sultan's ROM and I've been using it for a long time now and i'm very happy with it. Since we are losing support by Sultan (which is fine, I appreciate everything you've done and you're great) but I don't know what ROM I should switch to when the time comes and we lose support.

Can somebody please help me and tell me what ROM should I switch to? I want a ROM like this, not necessarily Lineage OOS is fine too but still!
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] kylothow:
[MENTION=4800121]Sultanxda[/MENTION] thank you for the last update.

When compiling your Lineage variant, any particular environmental change I should keep in mind or "hot editing" needed?

For example, I have noticed you edit the build number (or maybe I miss something and mine doesn't change) and I was wondering if I was missing something else.

Thanks in advance, and thank you for everything you've been doing for these sad OnePlus devices :)
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Sultanxda:
Just run the patcher first:

./patcher/patcher.sh
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Xokoz:
What I really miss is sound control.. :( Even my 64 ohm headphones have too loud volume for me to listen music/videos. Is there any way to add it?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] rio1989:
I may be wrong to ask it here, but can we expect an oreo update to this awesome rom??
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] AdamWill:
rio1989: read back the last few pages. The answer is no, as sultanxda is moving on.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] kylothow:
My AKG massage my ears if I turn the volume up. Awesome.

Thank you. I'm pretty sure I've ran it both times, but maybe something went wrong.

I'll try again as soon as I manage to download the repo and set up the OS (clean flash, always :silly: )
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Xokoz:
I meant the volume is already too loud at even the lowest volume. I have very sensitive hearing and I usually listen to music/watch videos in dead quiet room. My hearing is the reason why I have 64ohm headphones, lower impedance ones have way too much side noises like hissing etc. I would implement the sound control (official name is Faux sound control??) if I had the skills/linux system to bake the kernel.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] LoneWanderer_97:
Hey guys im new here and was wondering since this is a N rom could i just flash Super user instead of magisk?that isnmy preferred root method
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] cbendan:
[MENTION=4800121]Sultanxda[/MENTION]

I don't know if I'm doing something wrong, but when I turn video HDR on, the exposure gets frozen.

This happens too in my wife's 3t.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] sleepwalking0593:
We will miss you sultanxda. Have a good life ahead. I hope to save enough money and try out your kernel on pixel. :svetius:
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] binzianer:
Is there a way of getting the camera app from this working on Oxygen OS or Lineage OS 15.1?

I know that many features for the camera are within the ROM and not just the apk. I am just used to using this app and am not doing fancy things. I like how you can set different settings like the time for timelapse footage, Highspeed or Slow-Mo FPS Framerate in Videos, etc.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] irawynn:
Is it just me who has an issue with the Instagram photo app? Flash also doesn't work anymore on the regular photo app.
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Bitcloud30:
[MENTION=4800121]Sultanxda[/MENTION] thank you for your wonderful contribution since OPO up to OP5T :) am now going back to OS :) I hope to see your kernel work to OS soon! Thank you so much!
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] wouterx:
[MENTION=4800121]Sultanxda[/MENTION] Thanks for your work. I'v build my own rom based on your local manifest - I need LOS14.1 for work exchange email policies - Everything works well.. except all callers hear echo on calls when I use the speakerphone. Normal handset use works just fine without echo. I’ve tried different options without success. iv tried DeFluence (apk, build.prop edits,) Disable_Enable_Noise_Cancellation_v-5.zip, lineageos-audio-fix.zip, OPO_SpeakerPhone_Fix_LOS_V2.zip, EchoFix_rw-signed-v1.1b.zip and a couple audio_platform_info, mixer_paths_tasha hacks. None worked

who knows how I need to solve this annoying echo.

---------- Post added at 03:35 PM ---------- Previous post was at 03:10 PM ----------

+ tried different ROMs, with the original rom (android 8) there’s no echo -> so it is not a hardware problem?
[OnePlus 5T  ROMs, Kernels, Recoveries, & Other Dev] Xokoz:
Audio seems to be problem in this rom anyway, I am having quiet static hissing on headphones all the time.