yashsingh1/xdaforums huggingface dataset:
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Mord0rr:
The problem is that the option disappears.......

Found a solution: Use bat system install by Maurofrio, to reinstall 9.0.6. Before on TWRP just nuked everything.

Reinstall TWRP.

Reinstall Magisk. When successfully, uninstall Magisk itself! (very important).

Reboot.

Enter system.

Reboot, enter TWRP, reinstall Magisk. and enter system.

Only then, enter twrp and reinstall xXx rom.

Good news! Enter now on system with XxX rom 9.6! Sucess!

Seems somehow, something did survive always to my formats from previous Magisk....

Im so happy....o lost so much energy around this......finally!!!

Gona tune it at my taste....and i will stay on 9.0.6...don`t want any more bad surprises any soon!!

Thank you!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] amithiel:
Hi!

Just reporting version 11 works on OP6.

Device: OP6

Kernel: blu_spark r123

OOS: 10.3.2

XXX-Nolimits: 11.0

no issues
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] RMarques:
Sup man, OP6 here as well.

Can you please test if you are able to:

- Open a game

- Go to main screen

- Open that same game again by touching the game icon (not from recently opened apps)

And/or

Open a game and while into that game, go to any messenger app like WhatsApp or Telegram by pulling down the status bar and touching one of these messenger apps notifications, on the status bar itself.

While doing any of those steps, I was getting some sort of black screen of death. Only way out of it was hard resetting into bootloader and from there, restarting the phone.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] M848:
Uninstaller link?

Edit: through some lenghty link-hopping I found a hopefully working one: https://androidfilehost.com/?fid=11410963190603898050
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] amithiel:
Hi, just did that. no problems at all

(i should mention i have disabled the kernel tweaks in the profile a long time ago. back then it used to freezed my device)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] RMarques:
Thanks man! Hopefully it has come to an end, finally!

Would you mind to share your profile? You can PM me.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] EVOW00:
I have the same issue. Had it already in prev. No limits version.

Starting some games result in a black screen.

Dit you solve this already?

I did a clean install. And got kernel tweaks diabled
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] RMarques:
I did try the same, as well as debloating and not debloating India.img. I've had no luck at all. Someone did post in one of xXx threads to set animation scale to 1. That's the only "fix" I haven't tried yet, since I haven't been using xXx anymore for a couple of months, since the issue have started.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] lkp171:
Had the same problem on my op6 and op7p. In my case the animation scale to 1 fixed it
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] RMarques:
Awesome guys, it totally worked so far!

Rolling with latest 11.0 now!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] jason4962:
Hey im on os 9.0.8 and xxx 8.6. Can you show us the correct and safe way to update without losing root?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] tino1601:
(TWRP & Magisk versions ? Must use latest version)

Download full latest ROM OTA (v10.3.3) zip

Copy or move it to root (internal storage)

Update it via Local Upgrade

After update installation is finished, do not reboot yet

Open Magisk and go to Downloads and install/flash A/B Retention script, but don't reboot, yet

Go to Magisk Home and click on Install Magisk and install it on INACTIVE Slot

Reboot to system

Install latest XxX Rom (v11.0) in Magisk.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] blaaaazedup:
Anyone using this on 10.3.3? Is it possible?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Shyciii:
Of course. I use xXx NoLimits 9.9 with OxygenOS 10.3.3, and works great.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] rajone9:
sure, I use v.11 with 10.3.3. on OnePlus 6

Inviato dal mio ONEPLUS A6003 utilizzando Tapatalk
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] blaaaazedup:
Awesome thank you☺️
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] jason4962:
Thanks before i continue, I've attached magisk and twrp version from my last flash. They are old will they still function flashing oos 10.3.3 and xxx 11?

Twrp 3.3.1 , bluespark
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] jason4962:
Does anyone have the same issues?

Upgrade from oos 9 xxx 8.6 to oos 10.3.3 with xxx 11 and battery is dropping crazy? Phone feels super hot also.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] ziggy1001:
One or more apps is running the CPU's flat out, there are various diagnostic apps that should identify the problem apps
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] jason4962:
Disable xxx 11 from magisk somehow did the trick. dont know what is going on. Was fine on xxx 8.6 before. I may try installing 8.6
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] tino1601:
Set kernel tweak to 0 in xxx profil
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] jason4962:
Thanks guys it appears to be an weird issue. I downloaded the newest version mod 11 with 55 profile and disabled kerneltweak, phone is still 60-75C hot for normal use. I then shut it down charge it full and leave it for 20 minutes before rebooting it. Rebooted and its been pretty staple. Although waking it up it seems to cause spikes which i dont have issues with oos9 and xxx 8.6. On the same phone same apps.

Only app i deleted was terminal emulator because i was not able to do an nandroid backup. Had to remove user 999

As i type right now. Its not cold like the old oos9 with xxx 8.6 but its usable to touch. Thank you all for helping.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Shyciii:
Use NoLimits 9.9 version. This very cold in use (OxygenOS 10.3.3)
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] jason4962:
Ah thanks. which profile do i use?

Also to mention i have oneplus 6 if that makes any difference.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] yot2703:
How do i change back my boot animations...
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Revan427:
Same way you changed it previously.

You can simply edit this in the config file.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] ab_bras8:
is it okay i use NoLimits 9.9 but its OP7 ? not OP6 .
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Shyciii:
Okay.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] ab_bras8:
can someone share your 9.9 xxx profile , thanks

i think my profile is not working . I edited the boot animation to OOS stock but nothing happens, still xXx boot animation
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] scorpio76r:
This was a issue that I experienced . I have experienced this since 9.6. A workaround for me was to completely unistall XxX and, reinstall it but, first making sure that my new edited profile was in both the xXx folder and, on the root of the storage. After doing this, I rebooted the phone. My changes stuck. I don't know if this works on all phones but, it worked out on two of my own. Hope this helps out.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] ab_bras8:
ok I'll try this one, no need to delete the xXx folder?

update: thanks for the help sir, it works perfectly ?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] scorpio76r:
Glad that it works for you as well
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] drharder:
sorry, wrong post

---------- Post added at 07:27 AM ---------- Previous post was at 07:23 AM ----------
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] baxtex:
Any luck using NoLimits 11.2 for the Oneplus 6? I tried it the other day and it caused ui to freeze and behave weird. 10.2 worked fine for me though.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] °Washy:
No issue for me on 11.1. kernel tweaks set on 0.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] ab_bras8:
guys pls help, xXx 9.9 no caller' voice in dialer, any fix for this ?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] scorpio76r:
Are you using stock dialer?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sp0979:
I had flashed google dialer via xxx.

Now I'm not able to use OnePlus dialer with our without removing google dialer.

Error:

You have disabled required permission.

Things I tried.

1. Removing and installing google dialer via xxx many times. I had chosen to keep both the dialers.

2. Reset app preference

3. Heard xxx v11.2 solves that problem, but it didn't. I prefer v9.8 coz it gives better battery than all above versions.

4. Dirty flashed rom via local updater.

5. Tried to search in forums and google for solution.

I would wish to use OnePlus dialer and not google dialer. Can anybody help.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] luisgamma13:
Excuse me. Did you flash latest version on your Oneplus 6 or 6T??? I want to do it but I am not sure it works??? Please help me
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sp0979:
I am using op 6.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] maigre:
Have you made sure that the OnePlus dialer is the default dialer? Check Settings > Apps & Notifications > Default apps > Phone App.

I'm not sure that will fix this, but I have major dialer problems when I don't have a default dialer set, which happens when I update OOS and NoLimits.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sp0979:
Yes. Even if I make oneplus dialer as default. Or even if I remove google dialer via xxx. It's giving me same problem. Dirty flash too didn't solve the issue. Reset app preference didn't solve either. Don't want to clean flash just for this issue.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] maigre:
Does the OnePlus dialer work if NoLimits is not installed? If it does, look for dialer settings in the profile. There may be dialer related things set there that cause it not to work.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sp0979:
Tried. Same problem.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] RMarques:
OP6 8/128 here.

xXx11.2 flashed and working flawlessly during the last 24hrs.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] dr.zikzak:
WLAN issue on NoLimits ROM

Hello guys,

After a full wipe and soft brick before, I managed to get my OP6 running again... I had NoLimits installed before the breakdown and it was fine at last...

Inthronisiert beginning I experienced some issues concerning the connectivity to wlan networks...the connection was establish, but the failed after a few seconds, then it went on searching and trying to connect again for minutest...switching between LTE and wlan...this issues disappeared from on day to the other and just came back after the breakdown of my phone, full wipe and new installation of NoLimits ROM...

I also tried to reset the router, changed settings of authentication... nothing helped...

Anyone experienced such issues?

Thanks!

Regards,

Alex
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] bromden:
I had such issues while going back and forth between the original kernel and Elementary. Have you been playing with kernels?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] yingwang:
after installing 11.3 through magisk (with working profile from 11.2), got rebooted back into system with xxx nolimits uninstalled.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] ab_bras8:
hey i found a solution for the dialer,

use the updated xXx profile prop v.56
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sp0979:
I had already updated to v11.2 for that reason. Infact today I updated to v11.4 , but no result.

I think I will have to go for clean flash now.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] gFknQ:
op6/Oxygen/xXxNoLimits/radioactive kernel
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] RMarques:
Are you substratum theming bud?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] °Washy:
Faced anyone hanging while scroll or blank screen siwtching between apps?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] gFknQ:
yes sir
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] cluttered_butter:
Call conferencing issues

Hi All, I am on version 8.6. I noticed, when I try to conference multiple people on a voice call, the call gets disconnected. Anyone else facing this? Also, can I switch on something on the profile that will fix this issue?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] bythelaw:
30 minutes in, still haven't found the download link that leads to the magisk file. Only found the Profile file.

Please help

Edit : FOUND THE LINKS, THANK YOU.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] cluttered_butter:
This was fixed. I don't know what happened. Sorry for the trouble.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] foomanjackel:
xXx 11.5 + OOS 10.3.4 + Omega kernel are working great here! Thanks X
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Hateislove:
Did you get the Radioactive kernel for custom ROM or the normal one?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] gFknQ:
normal for oos
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sp0979:
I'm getting battery drain. Can u share your settings please. Did u also activate acc?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] gFknQ:
I haven't activate acc. I am pretty much stock besides my noLimits profile
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] dr.zikzak:
No, not at all...

Regards,

Alex
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] islandman75:
Can't find Omega Kernel thread, has it been removed?

Inviato dal mio ONEPLUS A6003 utilizzando Tapatalk
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] scorpio76r:
Not at all. Here you go https://xdaforums.com/oneplus-6t/development/kernel-aoxp-kernel-1-0-t3905381
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] islandman75:
Ah that's why... I've got op6 not 6T and I didn't look at that forum...

Inviato dal mio ONEPLUS A6003 utilizzando Tapatalk
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Sai1234008383:
Hii best stable version for OnePlus 6?

Can I flash latest 11.5 or 11.6 ? Are they stable? Anyone tried...
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] henningsieh:
Most of us have no problems with latest version. You only must not enable this one special option in config profile:

<code>

# Some OP6 Users experience issues. Then simply disable it.

KernelTweaks = 0

</code>

Leave that off and everything will be good.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] RedDeadDorito:
Dual Sneaker mod doesn't work on xXx 11.5 | OOS 10.3.3 :(
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] judaxxx:
I stopped using it several versions ago ,,, it really reduces the audio quality a lot, and it only degrades the life of the top speaker ... it's my feeling :rolleyes:
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sjamie:
Yep, I agree!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] aniruddhavispute:
I did no understand the Aroma installer part in OP installation post. I'm using OP6. Will I have to install some specific twrp for this to work? I'm using Blu spark twrp right now
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] thugslug:
Blue spark twrp will be fine, as you should install xxx via magisk anyway, if you read the opening posts again it might make sense.

OP6 cannot use aroma installer, hence we have to edit the config file to adjust settings.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] aniruddhavispute:
Got it, Thanks a lot!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Kinghacker:
Anyone facing fonts problem after flashing xXx 11.6 on OP6?

Font problems like no other language font is displaying, either boxes or blanks.

Also some debloat options are not working. I set 0 to Sound Recorder and OPWidget, but they are still getting debloated.

Edit:

Tried 11.5 as well same issue. Dug a little deeper. I think it is caused by post-fs service of either xXx or OverlayFix. This issue appears after the 2nd reboot.

I know you don't have OP6 anymore. But still can you look into this? [MENTION=1030560]xXx[/MENTION]

Also many thanks for your hard work.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] shakad:
I believe it's to do with the recovery.img being erased if you flash reserve_V1.zip in magical it will replace recovery.img and all will be well
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Kinghacker:
I read about reserve_V1.zip. It's to be used to recover when you use TWRP to flash Android 10 and loose emojis and stuff.

While in my case, after removing xXx module, everything works.

Edit: I have created a module to add all stock fonts systemless-ly which solves my problem temporarily.

Edit2: As I investigated little further, I found that stock system mounts reserve.img and india.img in /system/reserve and

/system/india respectively. After flashing xXx, /data/adb/modules/xXx/system is mounted to /system.

As OverlayFix umounts everything, the mount to previous images is removed and only mounts set by OverlayFix remains. That's why fonts and some apps are not mounted. So they don't work.

May be I'm wrong. Someone experienced with scripts please look into this. Thank you.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] MarniCs:
After updating to xXx NoLimits 11 a while ago I started having issues with microphone in Messenger. I've googled it and it seems that app is using the lower mic instead of the top one while on loudspeaker. Is that related to xxx rom? I've read that it happens on the stock rom only so it's a bit confusing. Did anyone have the same issue and found a solution without having to change rom?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] bromden:
xXx is not a rom, mate. Just a modified version of the original rom so if the issue you're referring to happens in original rom, it will most probably be there in xxx.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] MarniCs:
So any idea why it worked fine before and now it doesn't? Should I try another rom then?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sp0979:
There's no such issue. Try dirty flashing like ota rom. Don't forget to follow steps retain your twrp and magisk.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] vamshi2007:
can you give me the module to add the fonts as well , as i am not getting any emojis even after i edited the profile
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Kinghacker:
There you go

https://xdaforums.com/oneplus-6/how-to/official-oxygenos-5-1-5-ota-oneplus-6-t3794232/post82946625
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] vamshi2007:
Thanks for this but even after flashing this , i am not getting emojis

what do you think i should do ?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] vamshi2007:
I am unable to verify any upi apps including gpay(tez) and bhim , for gpay i am not getting otp in my messages (i am receiving other sms) ans for bhim it says verification failed

What do i do to fix it
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Kinghacker:
Uninstall all magisk modules and flash this module, if it's working then you can flash other modules again.

If this still doesn't work, uninstall all modules, dirty flash full OOS zip through internal updater(Please search for how to keep magisk and twrp before doing this)

If even this doesn't work, you'll have to flash 10.3.3 fastboot rom(or 10.3.4 if available) except /data/media (if you don't want to wipe internal storage)

Or you can restore your phone using MsmDownload Tool.

Please keep in mind you may loose data, so backup before doing anything.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Kinghacker:
These are the apps I hide with Magisk Hide, every UPI app works fine. So hide whatever is in the screenshot. Also register again for every UPI app by clearing data if they don't work.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] vamshi2007:
Thanks bud , did this and its working now
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] vamshi2007:
My phone got switched off because battery was dead , then charged and switched on again , all the apps are hidden in magisk yet all the upi apps stopped working again , any solution ?
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] Kinghacker:
Same with me, but everything thing works. Maybe try wiping dalvik cache. But I suggest you clean install using MsmDownload Tool coz something random is messed up which we can't figure out.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] vamshi2007:
Okay , i will try wiping the dalvik

---------- Post added at 12:01 PM ---------- Previous post was at 11:57 AM ----------

Once the dalvik is wiped , everything is working again
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] @m@ru:
hi dears

my phone have some problem after update to android 10 os! my rom is official and was 9, rooted and installed xXx nolimit magisk. after update by twrp to android 10 my phone loading on first screen logo and my screen black! after this happen i reflashed to android 9 os and now my phone loaded to last screen and on first lock screen open an window that power off phone & come back to recovery mode!!! i install magisk 20.4 and xXx nolimit 11.7 but don't resolve my problem!!!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] fabian080587:
Flash xXx 11.7 seems to do "nothing"

Hi folks,

I've recently flash Android 10.3.4, twrp official 3.4.0-2 and magisk 20.4. Everything works like a charm. I then tried to flash xXx 11.7 (from OP8 thread) but it seems to do "nothing", it automatically installs Overlay Mount Fix, it appears in Magisk Modules list but my phone seems untouched. Flash from Magisks goes well as it does not gives error and logs seems to be ok. I've also tried flash from TWRP without results.

Any suggestions? Is there a max release for OP6?

I've searched in the thread for similar problem but without luck...

Thank you for your support!
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sp0979:
I am using OP 6 running 10.3.4 and xXx 11.7 using bluspark twrp.. No issues at all.

Try Flashing unofficial twrp.

Also Try Removing Magisk and flashing again.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] fabian080587:
Unfortunately I'm also getting "Unsupported device" when flashing last bluespark twrp...so I used last Mauronofrio's twrp available. Then I've tried to uninstall and install Magisk again but still nothing happends when flashing xXx.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] scorpio76r:
Try xXx 9.4, after you see that it's installed and, working, flash 11.7 over it. Hopefully this helps
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] fabian080587:
Tried right now but still nothing changes... I don't know.

I ended up even re-flashing the full stock rom but still it's not working. No custom boot animation and no debloat at all, but still magisk set it as active and i can even see xXx as build number in phone settings.
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] sp0979:
I had over flashed fastboot rom once when I had major such issue. My data was not lost. I had done manually by running each command one by one.

However, backup everything on computer.

Here's the link.

https://xdaforums.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665/amp/
[OnePlus 6 ROMs, Kernels, Recoveries, & Other Devel] fabian080587:
I've already done this: my first update has been done via fastboot image. Luckly I had a nandroid backup to restore (after reflashing 1.0.3.0 via fastboot), then first i tried to update rom with update engine and then xXx, then restore and update just xXx, all without success.

It seems that i'm stuck with 1.0.3.0 and xXx v9.8 without really knowing why. Any further update breaks something and xXx ceases to work.

Well, i will wait some more time to update...maybe a new release.

Thank you all anyway!