Question TWRP Installation gets overwritten - OnePlus Nord 2 5G

Hello,
I'm trying to get a (permanent) TWRP installation on my OnePlus Nord 2. But after flashing the (latest official) TWRP image via fastboot to recovery I can enter it once if I press Power+VolDown directly during the reboot to recovery. But after the next reboot Power+VolDown starts the fastboot mode, Power+VolUp just boots the normal system and trying "adb reboot recovery" brings me to the standard recovery mode. For me it looks like the twrp image gets overwritten with the next reboot (something I found happens if you don't press Vol+PowerDown on your first restart after the installation but I did that [multiple tries]).
And when I try to directly boot the twrp image (without flashing it) it manages to send the file but fails on booting with "FAILED (Status read failed (No such device)). Same if I try with sudo.
Does anyone know what I am doing wrong or if it's a known bug I simply didn't find anything about?
Sincerely,
Sanaway

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Hi, IIRC, right after flashing you have to boot into recovery using fastboot reboot recovery
Don't use the button combination, do it from the command line for the first boot (this should solve it if my memory serves me right)

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Op_Flashpoint said:
Hi, IIRC, right after flashing you have to boot into recovery using fastboot reboot recovery
Don't use the button combination, do it from the command line for the first boot (this should solve it if my memory serves me right)
Click to expand...
Click to collapse
It works for the first boot (and if I reboot to recovery from TWRP again, even mutiply times) but as soon as I power off once and reboot normally it is gone again.

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Sanaway said:
It works for the first boot (and if I reboot to recovery from TWRP again, even mutiply times) but as soon as I power off once and reboot normally it is gone again.
Click to expand...
Click to collapse
What exactly are you doing?
What you need to do is
1. Boot to fastboot
2. flash recovery fastboot flash recovery <recovery.img>
3. Once flashed, reboot to recovery, not system fastboot reboot recovery or fastboot boot <recovery.img>
I had this issue and if I boot to recovery it did not get overwritten

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Op_Flashpoint said:
What exactly are you doing?
What you need to do is
1. Boot to fastboot
2. flash recovery fastboot flash recovery <recovery.img>
3. Once flashed, reboot to recovery, not system fastboot reboot recovery
I had this issue and if I boot to recovery it did not get overwritten
Click to expand...
Click to collapse
I did exactly that.
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And it works so far that I can access TWRP once. But as soon as I power down from TWRP it's gone.

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Sanaway said:
I did exactly that.
View attachment 5640407
And it works so far that I can access TWRP once. But as soon as I power down from TWRP it's gone.
Click to expand...
Click to collapse
Strange, maybe after flashing try fastboot boot twrp.img ?

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Op_Flashpoint said:
Strange, maybe after flashing try fastboot boot twrp.img ?
Click to expand...
Click to collapse
Sanaway said:
I did exactly that.
View attachment 5640407
And it works so far that I can access TWRP once. But as soon as I power down from TWRP it's gone.
Click to expand...
Click to collapse
Found this in another thread, maybe try this as well
For that when we reboot after typing
fastboot reboot recovery
Immediately press volume down+ power button till you saw the recovery name at the bottom om the phone screen and leave the phone it will boots to twrp that's it.

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Already tried both. In the end if it doesn't work I'll just reflash it every time I need it. Annoying but nothing impossible.

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Sanaway said:
Already tried both. In the end if it doesn't work I'll just reflash it every time I need it. Annoying but nothing impossible.
Click to expand...
Click to collapse
HI. I think you need to flash Magisk or what ever root you want to use at first boot to TWRP.
It makes TWRP to stick

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jis251 said:
HI. I think you need to flash Magisk or what ever root you want to use at first boot to TWRP.
It makes TWRP to stick
Click to expand...
Click to collapse
After I rooted the phone TWRP sticks but I can't start it by key combination. But that shouldn't be too much of a problem.

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Sanaway said:
After I rooted the phone TWRP sticks but I can't start it by key combination. But that shouldn't be too much of a problem.
Click to expand...
Click to collapse
OK. I hope you know that Nord 2 doesn't like to be rooted. It will be soft bricked max 2 weeks or so ( usually) so make good backup (TWRP backup is hard to restore if at all). So be prepared and learn how to recover.

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As long as you root a CLEAN ROM (I've explained multiple times in various threats what that is - stock rom (re)installed by OP, than rebooted to stock recovery, whipe, re-flash stock by OP servicepoint) and rooting will be damn fine. Mine runs for 3 months stable as hell. But. If you do not do as above, the question is not IF you are getting troubles but WHEN.