Database Info

No fastboot in recovery after TWRP installed failure

Ok.... So i unlocked my bootloader on a verizon pixel and installed magisk with a patch boot image. no problem
I just tried to install TWRP (3.2.2). I booted the image first, the flashed the TWRP zip in the booted image. Then TWRP would boot, but only TWRP would boot. it would never progress to booting up the rom.
So i found a thread that suggested flashing the magisk patched boot image.... that just made it worse. It would only boot to recovery... and NO FASTBOOT. I was able to get to the menu and use adb to side load the latest OTA. Now i can boot into the ROM and use the phone as usual
However, I still don't have fastboot in recovery mode. I don't think its drivers. I must have mucked up recovery. It gotta be related to the TWRP snafu. I can boot into the stock boot loader and my PC beeps and recognizes the phone, when i use the arrows to go to recovery, my pc loses the device. My PC just can't see the pixel in recovery mode.
Not sure how to proceed
Can I side load the factory image after removing the wipe tag (-w)? Do i need to factory reset?

Am an idiot.... fastboot works in bootloader.... please delete

Stuck in Fastboot Mode

Hi , i just updated to Open Beta 4, the step i use was
-local upgrade from settings
-install twrp by using fastboot
-flashing twrp zip from twrp
-flashing magisk
I had module called oneplus 6 stereo mod , and i think it doesn't work onopenbeta 4, i dont have any sound and microphone. so i decided to uninstall the magisk by flashing the magisk uninstaller. but still doesn't fix my issues. I had a system backup ,so i wipe the system , and resotre it. and now it just stucked in fastboot mode. if i tried to boot into revovery , it just goes staright to the fastboot mode (Fastboot mode , product name , variant etc). tried so many time sto fastboot flash boot twrp.img, still doesnt work , everytime i tried to reboot to recovery , it still goes to fastboot mode. any help or suggestions ? i would appreciate it! THX

Lenovo p2 blue led after magisk update

I am creating this post to help p2 community who is stuck on blue led after magisk update on custom rom
I have encountered this issue twice on my phone after a magisk update.
This happens when you patch the update directly from magisk manager.
The first time I was stuck with this issue on custom pie rom, I searched on other threads and got to know that device needs to reset to stock rom by flashing fast boot stock files on download mode, just search it, you will get link with details
However, this was a very complex task , also I lost my data in the process after flashing the data partition. From there , I went on to flash custom rom ,then installed apps , the process took the whole day
The second time when I again stuck with blue led , I was on another pie rom, This time I recovered my device without having to go over flashing all things again.
Please find the detailed step below , as I think it may help someone in such critical issues
1) Go to download mode, flash treble supported twrp for treble supported pie roms, by using command - fastboot flash recovery name.img
2) Temporary boot into same twrp , command is -
fastboot boot name.img
3) Once in twrp, go to reboot, reboot to recovery
4) Once in recovery , copy following files into internal storage - magisk.zip, magiskunistaller.zip, twrprecovery.img ( one used in step 1 ), boot.img ( extract it from existing rom package.zip)
5) Flash magisk uninstaller first
6) Go to install, install image
flash boot.img by selecting boot partition
if it get stuck , again go in twrp using step 3 and try again, it will work
flash twrprecovery.img by selecting recovery partition
7) Flash magisk zip now
8) If all goes well , you phone will boot into existing rom
Please like the post if you had same issue and are able to recover it from mentioned steps

I got into this trouble too, when direct installing magisk from v19.2 to v19.3. The magisk manager shows that it's finished installing v19.3 and reboot. Then the phone shows the white Lenovo screen, then turns dark, and vibrate for a few seconds with blue led lighting up, and finally just freeze. No bootloop, just a dark screen with blue notification led.
What I did was going to twrp (the one recommended in LOS 16.0 thread) by pressing vol up + down + power button until the white Lenovo screen come up, then release. I just reflash my current ROM (RR-P-v7.0.2-20190604-kuntao-Official.zip) using adb sideload. It finished flashing, click reboot, and finally managed to boot into system. No data loss, magisk v19.3 worked, and no magisk uninstaller required.
During the flashing process, I noticed that Magisk v19.3 was being auto flashed, so the magisk manager direct install probably somehow mess up with the boot.img after installing v19.3.

I was not able to go in twrp by any means , so I mentioned steps via download mode
Regarding your way to sideload and dirty flash whole rom , it didnt worked with me previously, so I cannot say about that, it was going back to blue led after reflashing
Regarding magisk installing and removing steps, anyone can ignore this steps and try if it works for them.

Just uninstall the magisk and reinstall it.
I have also faced same error previously and reinstalled magisk and it worked.

Someone please make a video of this and post it here
Rakxx said:
1) Go to download mode, flash treble supported twrp for treble supported pie roms, by using command - fastboot flash recovery name.img
2) Temporary boot into same twrp , command is -
fastboot boot name.img
3) Once in twrp, go to reboot, reboot to recovery
4) Once in recovery , copy following files into internal storage - magisk.zip, magiskunistaller.zip, twrprecovery.img ( one used in step 1 ), boot.img ( extract it from existing rom package.zip)
5) Flash magisk uninstaller first
6) Go to install, install image
flash boot.img by selecting boot partition
if it get stuck , again go in twrp using step 3 and try again, it will work
flash twrprecovery.img by selecting recovery partition
7) Flash magisk zip now
8) If all goes well , you phone will boot into existing rom
I have this issue but I don't know how to do these steps please make a YouTube video and post a link here (I'm new to this)
Click to expand...
Click to collapse

[SOLVED] Installing ANY custom ROM bricks Oneplus 6

Hello!
I'm having quite a hard time figuring out what is happening on my new Oneplus 6.
The first time i flashed LineageOS 16 microg edition it booted but since i tried to restore stock ROM backup with TWRP it all went to hell.
Device immediately bricked, only booting to fastboot.
Had to use msm tool to unbrick. ( the first of so many times.... )
Then updated from settings to latest OOS 9.0.9.
unnlocked bootloader
and flashed again.
NO OS INSTALLED.
phone boots only in fastboot.
can't boot any recovery from fastboot. gives error.
if reboot to recovery blue led and black screen is all that i see.
only fix is msm.
From that point onwards i tried EVERY guide I could find (and recognize as valid of interest) here on xda, youtube, google.
Multiple times per guide.
here's an example of a "last resort" guide from https://forum.xda-developers.com/oneplus-6/how-to/guide-microg-oneplus-6-source-ligthway-t3874469
INSTALLATION TUTORIAL
Italic = recommended, but not mandatory. Do it if something doesn't work properly
0) DON'T RESTORE your apps until everything is set up, otherwise you'll have issues with GCM (getting instant notifications from messaging apps for example)
1) Reboot to blu spark TWRP
2) step deleted
3) Flash OOS
4) Flash TWRP
5) Reboot to recovery
6) Flash OOS
7) Flash TWRP
8) Reboot to recovery
9) Flash your custom ROM + TWRP + reboot to TWRP
10) Flash again your custom ROM + TWRP
11) Reboot to recovery
11 bis) Wipe data ("factory reset")
12) Flash Magisk
13) Reboot to system. It's just to make sure the installation worked.
... more on link
Click to expand...
Click to collapse
Tried also official lineage, SyberiaOS. Different previous version of the two (since I read in the lineage official thread others have this issue)
Basically at the point after flashing any of these roms results immediately in TWRP warning "no os is installed" at reboot attempt with or without re-flashing twrp after.
Then if rebooted just hangs on blue led. can't boot anything.
Meanwhile flashing OTAs + twrp results in bootable system.
Other things that i tried:
before unlocking BL update to latest OTA_34 -> 9.0.9, reboot, install again.
using mauronofrio twrp version https://forum.xda-developers.com/on...overy-unofficial-twrp-touch-recovery-t3860815
Any ideas?
[SOLUTION]
If you're bricked follow this: https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3798892
1 - Have last OOS installed in both slots
- update from settings, local update, latest OTA (Pie) from oneplus support site.​- reboot, let it complete​- apply again​2 - Enable OEM Unlock in Developer options
3 - Boot to Fastboot and unlock bootloader:
Code:
fastboot oem unlock
4 - Once in OOS reboot to fastboot and boot twrp:
Code:
fastboot boot <twrp-img-name>.img
5 - Push twrp + custom rom:
Code:
adb push <custom-rom-name>.zip <twrp-zip-name>.zip /sdcard
6 - Flash twrp in twrp
7 - Reboot to recovery
8 - Wipe system and Data
9 - flash ROM
10 - flash twrp
[IMPORTANT]
11 - Tap Reboot to recovery then if it says No OS installed! tap home button! Don't reboot! reboot = brick = msmdownloadtool
12 - Go in advanced menu and select Fix Recovery Bootloop and swipe
13 - THEN TRY TO MOUNT /system.
IF YOU'RE UNABLE TO MOUNT /system APPLY AGAIN THE FIX AND REPEAT FROM STEP 7​14 - Reboot to recovery
It WILL stil say No OS installed but now you'll be able to reboot to recovery​[/IMPORTANT]
15 - Once in recovery reboot to system.
If you've done everything correctly it won't complain again about no OS being installed and you'll get your rom up and running.​16 - Let it reboot to system and complete first configuration
17 - Now you can reboot and flash every module you like from twrp.
That's it. Hope this'll spare nightmares and storage write life.

This is a bad phone .. I have it too
تم الإرسال من ONEPLUS A6003 باستخدام Tapatalk

But you seem (from post history) to be able to install ROMs :crying:
As most of those who try i guess.
Maybe my phone is somehow damaged

What some guides miss out is that you have to install everything twice. Once on slot A and once on slot B and after each install, verify what slot you are on before reboot and then check what slot you are on after reboot. I ran into issues flashing Havoc OS onto my phone too and figured it out in the end after so many times that I was in fact installing stuff twice on the same slot because it never switched over. I'll run you through the order I did things so hopefully you can follow.
-Use MSM Tool to revert everything back to stock and once the phone is booted, update to 9.0.9 either by downloading the update through the phone or by local upgrade if you have the file to hand. (remember to only have the OOS file present as any other OS in zip form crashes the local updater). You don't need to do this if you are already rocking stock Oxygen OS.
-Once the phone has restarted after the upgrade, let the post update procedure finish before continuing.
-Enter developer mode and enable OEM unlocking, Advanced Restart and USB Debugging. From here, reboot to bootloader.
-Plug your phone into the PC now and assuming you have fastboot setup ready on your PC, type 'fastboot oem unlock' and use the volume keys to select the option to unlock and press the power button to select.
-After the phone has completed it's wipe cycle, re-enable Advanced Restart and USB Debugging. The OEM unlock option should be greyed out as it's already been enabled. Make sure you don't add a pin code or password just yet as you will enable encryption which will make the next steps harder than it should be.
-Boot back to bootloader and type 'fastboot boot twrp.img' (or whatever you named it. Make sure that the image file is in the same folder you initiated cmd or powershell)
-Once booted into TWRP, flash blu_spark TWRP as that supports encryption apparently and is more stable than any other. To make sure that the script executed on both slots, hit reboot and check what slot you are on and tap the button for the other slot. Now reboot back to recovery, check you are on the other slot and flash it again.
-Now flash your 9.0.9 OOS zip followed by TWRP once on slot A and once on slot B while making sure you are on the other slot when doing it a second time. Remember that you have to re-flash TWRP after any flashable file that alters the boot partition before you reboot or you will undo all your work. Just make it habit that you re-flash it every time and you should be good.
-Once OOS and TWRP have been flashed on BOTH slots, reboot back to recovery and do the whole process again with your custom ROM (Remembering to flash TWRP before you reboot and checking which slot you are one before and after each flash).
-Once that has completed, reboot back to recovery and flash Magisk on each slot and GApps or MicroG if your ROM supports it. You don't need to re-flash TWRP after this but I do anyway to keep the habit lol.
-Entirely up to you, but before you reboot to your fresh new OS, you can wipe internal storage ONLY if you want all traces of your previous OS gone, but this will also remove personal files etc. I generally just head into TWRP file manager and delete the Android folder and keep the rest.
If you run into issues like crashes on your new OS, reboot to recovery and do a factory reset, but you will also need to re-flash Magisk again. GApps installs itself to system, so you won't need to re-flash that. MicroG does not and will need setting up again. One thing that took me a while to realise is that if you try rebooting while your USB is plugged into your PC, you will sometimes enter download mode, so only keep it plugged in when you need it for MSM Tool or to transfer files across.
I'm pretty sure I put everything down the way I did it and didn't miss anything, but it is late and I am half asleep. Will check back in the morning and double check with a fresh brain.

Many thanks for your exhaustive reply!
Will follow this tomorrow morning with a fresh brain

Fixed!
Now I'll write a guide for those in the same situation.

franticboe said:
Hello!
I'm having quite a hard time figuring out what is happening on my new Oneplus 6.
The first time i flashed LineageOS 16 microg edition it booted but since i tried to restore stock ROM backup with TWRP it all went to hell.
Device immediately bricked, only booting to fastboot.
Had to use msm tool to unbrick. ( the first of so many times.... )
Then updated from settings to latest OOS 9.0.9.
unnlocked bootloader
and flashed again.
NO OS INSTALLED.
phone boots only in fastboot.
can't boot any recovery from fastboot. gives error.
if reboot to recovery blue led and black screen is all that i see.
only fix is msm.
From that point onwards i tried EVERY guide I could find (and recognize as valid of interest) here on xda, youtube, google.
Multiple times per guide.
here's an example of a "last resort" guide from https://forum.xda-developers.com/oneplus-6/how-to/guide-microg-oneplus-6-source-ligthway-t3874469
Tried also official lineage, SyberiaOS. Different previous version of the two (since I read in the lineage official thread others have this issue)
Basically at the point after flashing any of these roms results immediately in TWRP warning "no os is installed" at reboot attempt with or without re-flashing twrp after.
Then if rebooted just hangs on blue led. can't boot anything.
Meanwhile flashing OTAs + twrp results in bootable system.
Other things that i tried:
before unlocking BL update to latest OTA_34 -> 9.0.9, reboot, install again.
using mauronofrio twrp version https://forum.xda-developers.com/on...overy-unofficial-twrp-touch-recovery-t3860815
Any ideas?
[SOLUTION]
If you're bricked follow this: https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3798892
1 - Have last OOS installed in both slots
- update from settings, local update, latest OTA (Pie) from oneplus support site.​- reboot, let it complete​- apply again​2 - Enable OEM Unlock in Developer options
3 - Boot to Fastboot and unlock bootloader:
Code:
fastboot oem unlock
4 - Once in OOS reboot to fastboot and boot twrp:
Code:
fastboot boot <twrp-img-name>.img
5 - Push twrp + custom rom:
Code:
adb push <custom-rom-name>.zip <twrp-zip-name>.zip /sdcard
6 - Flash twrp in twrp
7 - Reboot to recovery
8 - Wipe system and Data
9 - flash ROM
10 - flash twrp
[IMPORTANT]
11 - Tap Reboot to recovery then if it says No OS installed! tap home button! Don't reboot! reboot = brick = msmdownloadtool
12 - Go in advanced menu and select Fix Recovery Bootloop and swipe
13 - THEN TRY TO MOUNT /system.
IF YOU'RE UNABLE TO MOUNT /system APPLY AGAIN THE FIX AND REPEAT FROM STEP 7​14 - Reboot to recovery
It WILL stil say No OS installed but now you'll be able to reboot to recovery​[/IMPORTANT]
15 - Once in recovery reboot to system.
If you've done everything correctly it won't complain again about no OS being installed and you'll get your rom up and running.​16 - Let it reboot to system and complete first configuration
17 - Now you can reboot and flash every module you like from twrp.
That's it. Hope this'll spare nightmares and storage write life.
Click to expand...
Click to collapse
i tried all the mentioned steps, nothing worked for me. Even i tried all the guides, here on xda and on youtube i am not able to boot my 1+6 it is getting booted to fastboot mode, after installing custom rom. But if i flash only OOS then it boots back properly.
But in case of a custom rom it boots back to fastboot mode, and then in the end msm tool is the last resort to lock bootloader and make it stock.

i tried all the mentioned steps, nothing worked for me. Even i tried all the guides, here on xda and on youtube i am not able to boot my 1+6 it is getting booted to fastboot mode, after installing custom rom. But if i flash only OOS then it boots back properly.
But in case of a custom rom it boots back to fastboot mode, and then in the end msm tool is the last resort to lock bootloader and make it stock.
Click to expand...
Click to collapse
If you are stuck on fastboot try
fastboot set_active other
then try rebooting recovery if fails try
fastboot boot pc-stored-twrp
I found changing the active slot via fastboot may unbrick it without msm. It all depends on what steps you actually take during installation.
For installing LOS try not flashing twrp after installation. Los comes with its own recovery. Anyway if it says no OS installed you HAVE to fix recovery bootloop.

TWRP can't decrypt + Fastboot loop

Unsure if this is the place since its also related to TWRP 3.7, any help is appreicated
Got stuck in a weird situation and wondering if anyone has ideas.
Current State:
Slot_A on OOS 11, can boot TWRP via Fastboot
Slot_B on OOS 12, can only boot into Fastboot
Originally on OOS 11, booted TWRP and made backups of all partitions (data, boot, system image, vendor image, etc.). Forgot to move this to computer so this is all still stored on device.
Proceeded with OOS 12 upgrade (into Slot B). Patched magisk, rebooted, then flashed TWRP 3.7 (FBEv1), direct installed magisk, rebooted. - Everything was functional, but decided to go back to OOS 11.
Thinking I could just use the TWRP backup made on OOS 11, I did the following:
Booted into 3.7 TWRP
Restored the backup for boot, system image, and vendor image
Set active slot to Slot A and reboot
It doesn't allow me to boot into the OS (Presumably because the data was re-encrypted for OOS 12?)
Set active-slot=b and reboot, but it's locked to fastboot.
I've attempted a few things, but I can't boot back into OOS. I would prefer to retrieve my TWRP backups first before doing an MSM reset.
When on Slot_A (older), I can only boot into TWRP 3.6.2 and 3.7. I'm guessing 3.6.2 can't decrypt since it's only configured for A11 and under, but not sure why 3.7 can't decrypt my data.
- It doesn't even ask for pin when TWRP launches; maybe it's reading the System for Slot_A and thinks i'm still on A11?
- running `twrp decrypt {pin}` doesn't seem to work. Unsure if there's something done to my lockscreen pin to be used as the encryption key/password?
When on Slot_A, attempting to boot into either the system or TWRP hangs.
Things I've tried:
Flashing A11 boot.img and magisk-patched boot.img to Slot_A -> Hangs on 1+ Spinning dots
Flashing A12 boot.img and magisk-patched boot.img to Slot_B -> Hangs on 1+ logo (Does show up on ADB though)
Booting Slot_B into TWRP 3.6.2 (Official, and Nebrassy unofficial for A12) and TWRP 3.7 -> Gets stuck on "Fastboot Mode" screen (fastboot cli still responds) or Hangs on snapdragon logo
Edit: Ended up using MSM. Needed device for work

I have a similiar problem to flash twrp to my phone ,
each time i try i get a fastboot loop too and i have to reset/unbrick it with the msm tool back to android 11
i use the OnePlus_7_Pro_Global_OxygenOS_11.0.5.1 package to unbrick the phone , i dont know how long and often i tried now to get twrp to work so that i can flash a custom fw ... i want root and a android 13 based cfw but i dont get it to work :/

I got it working with crdroid. heres some stuff
guacamole - Google Drive
drive.google.com
be carefull
¯\_(ツ)_/¯​
------------------------------------
I got stable and decrypted fs RW working on crdroid 9.1 firmware other than some weird bugs
i put it in the 2023-twrp

MissAnthropin said:
I have a similiar problem to flash twrp to my phone ,
each time i try i get a fastboot loop too and i have to reset/unbrick it with the msm tool back to android 11
i use the OnePlus_7_Pro_Global_OxygenOS_11.0.5.1 package to unbrick the phone , i dont know how long and often i tried now to get twrp to work so that i can flash a custom fw ... i want root and a android 13 based cfw but i dont get it to work :/
Click to expand...
Click to collapse
I have the exact same problem! Have you found a fix yet? This seems to happen when I try to install Android 13 based roms, and when I install a rom like Lineage OS, using their recovery, it works just fine.

No, and I don't know why, maybe i do something wrong or it is the Modell that make this trouble.
I thinking to sell my OP7PRO and buy another one ( and then I have the same problem with the new phone )
No no let the jokes aside, it must work, i mailed with OnePlus Support Germany but they only helped me to install A11 w/root and recovery, i thought ok now I can update to A13 so I loaded A13, unpacked the boot.img, Patched the boot.img
Installed A13 w/out errors, rebooted - Fastboot loop

RIP
Started ranting instead

TWRP for guacamole development seems to be fairly scarce, last working recovery I tried was when they started using fastboot boot to enter it. It was pretty hacky even then, currently it seems that nebrassy is the maintainer for twrp for guacamole.
Github: https://github.com/nebrassy Android 12 thread: https://forum.xda-developers.com/t/recovery-12-official-teamwin-recovery-project.4269551/ Nebrassys Telegram has helpful info as well: https://t.me/NSSFB
last update I found was 2022:10:2 - https://www.pling.com/s/Phones/p/1835156
after a few days of torture I read a thread on here saying if you flashed twrp via magisk like you would if it was a magisk moule it would work normally. It worked on my device so I assume that its universal. I have filled my computer with guacamole related files Im uploading here before im forced to reinstall my os:
guacamole - Google Drive
drive.google.com
Just a fyi from what I have gathered from my experience you can get a stable twrp recovery with persistant / read write access and disabled encryption and basically use it with little error up until you try flashing a newer custom rom. My guess is when flashing a cfw the bootloader gets rewritten causing our boot image to become corrupted. Flashing twrp over / booting to twrp via fastboot or trying to install it via another custom recovery causes boot / recovery failures... meaning you cant really use it for flashing custom roms. I cant find the post with the install instructions I seen that helped me so here is what I think it was,
Found it: https://forum.xda-developers.com/t/how-to-make-twrp-work-in-your-stock-a12.4522667/#post-87985325
~ I have bricked this device constantly while ****ing around so unless youre prepared to go to war with the ****er, Id quit messing with it.
MSM flashing with windows is the only way to recover from the void.
Click to expand...
Click to collapse
using Linux systems for EDL is a bit more difficult to figure out but can be done > EDL https://github.com/bkerler/edl/blob/master/edl | https://github.com/andersson/qdl
Click to expand...
Click to collapse
~If you do brick I created a fastboot flashable A13 Oxygen os recovery rom and uploaded it to my google drive found under recovery_brick_fastboot.zip ~
Click to expand...
Click to collapse
lastly be mindful of a/b partition configuration or youll find yourself lost or bricked
Installation:
1. Obviously unlock the bootloader - OEM Unlock
2. Flash custom recovery (lineage/crdroid/etc)
3. (Personally I root here and again on the active slot so) flash magisk.zip
4. Reboot into installed ROM and install magisk android app and complete setup, reboot system
5. (another thing I like to do before flashing twrp) setup magisk enable all the basic options like prophide, deny list then set root userspace option to global.
6. Flash TWRP .zip (https://dl.twrp.me/guacamolev2/twrp-installer-3.7.0_12-0-guacamolev2.zip) via magisk
Alright! After all that you should be able to reboot into recovery via adb reboot recovery / fastboot or power menu and you find a working twrp recovery installed.
If you need help or want to **** around with the device you can @ me anytime and ill do my best to halp
2600 IRC (cornelius.scuttled.net >Nick captain >channel #guac)
Telegram https://t.me/+pxvpKToFo6pkMGYx
Discord https://discord.gg/MhvWgEfY

Pics

RolandStoner said:
Pics
Click to expand...
Click to collapse
You Confussing me a lot with your Posts before ...
i´m unsure what you mean exactly,
my bootloader is unlocked, with magisk i got a working root but after that i fail
what you mean with flash twrp with magisk ?
after unlocking the bootloader and get root, i tryd to flash twrp like before on other devices but that seems not working because i get then the fastboot loop
on another thread i found here on xda too, the guy wrote dont forget to activate the fastboot loop fix in the advanced options
but i not tried it yet again , so what should i do now ?
for now , i´m back on android11 , with stock oxygen os firmware
i have to do now the things like i did before again , unpack boot.img from the firmware that is installed on the device
patch it with magisk, flash it with "fastboot flash boot boot-patched.img" or is this step senseless ?
i mean you only wrote unlock bootloader and flash a cfw , but i don´t have a chance to flash a custom fw without a custom recovery ??
my recovery on my op7pro have no options for "install zip" or something else
addendum:
like i said you confused me a lot
addendum two:
or i do what i said before .. i sell my op7pro and buy me a one where i havent so much trouble installing twrp and root
i never had a phone before that made so much trouble in installing simple twrp ...
but i don´t found a phone yet that is compatible with kali and the pentest tools or wardriving tools like the oneplus , so i have a problem ,... i think i should drink now my selfmade blackberry liquor ( or blackberry booze ? ) and let the smartphone be a smartphone for now and power off my brain for a while

Yes, you need to patch your boot image via magisk and flash it with fastboot.
After you let magisk do its first time setup and then once it reboots you go to Magisk > Modules and flash the twrp recovery .zip file you got from twrp. link:https://twrp.me/oneplus/oneplus7pro.html just like you would if it was a magisk module.

the password for twrp decryption is your pin. Here are simpler instructions
https://forum.xda-developers.com/t/how-to-make-twrp-work-in-your-stock-a12.4522667/#post-87985325

****... I forgot a step.
after flashing twrp as a module in magisk you dont reboot, you go back to the main screen hit the install button and choose direct install

Now I understand it more, i had before rooted the phone successful with magisk, but then I made a wrong decision and booted into Fastboot and flashed TWRP in Fastboot Mode as I did it before with all my Smarties i had before, coz those way with Fastboot worked before all the time so I never thought that this is the error in the procedure
I give the twrp flashing with magisk a try.
Thx for the help

MissAnthropin said:
Now I understand it more, i had before rooted the phone successful with magisk, but then I made a wrong decision and booted into Fastboot and flashed TWRP in Fastboot Mode as I did it before with all my Smarties i had before, coz those way with Fastboot worked before all the time so I never thought that this is the error in the procedure
I give the twrp flashing with magisk a try.
Thx for the help
Click to expand...
Click to collapse
Thank @yassine2217 because I would never have done so either.... Still many bugs but twrp is twrp