can‘t install or boot images on Oneplus 6t - OnePlus 6T Questions & Answers

Hi! My goal is to install twrp recovery on my Oneplus 6t but when i flash it with the command fastboot flash boot twrp.img it does just boot into fastboot mode and the OS is deleted. i can’t use the command fastboot flash recovery twrp.img because i believe i have an A/B Partitioned device because everytime i use this command it says soemthing like: can’t find recovery_a. I can‘t use the command fastboot boot twrp.img because everytime i use this command the phone is stuck on the fastboot splash screen. I need help!

You should flash a fastboot rom of your device to fix this problem

The command is fastboot boot twrp.img. You can only boot it not flash it from fastboot. Once In twrp you can make it permanent in the settings

Related

OP2 Stuck in Bootloop

I am using Windroid tool kit as OP2 is stuck at the boot logo. Phone is in the fastboot mode but when I use the tool to flash the stock recovery nothing happens on the screen .
Any other ideas to get this resolved ??
Does fastboot still work?
Download oldest current version of TWRP, 2.8.7.0 i think
Change to twrp.img
run commands
fastboot flash recovery twrp.img
---wait for success
fastboot boot twrp.img
--boot into twrp
reflash rom
this did it for me.

attempting to boot TWRP gives blank screen

I don't really want to flash TWRP if it's not necessary to and I can just boot into it. And i'd rather see that I can boot into it before I flash it.
I understand that if i'm in the boot loader screen then I can issue the command fastboot boot twrp.img and it should go into the twrp boot loader without me needing to flash the boot loader to be twrp.
But it seems for some reason that when I issue that command I get a blank screen. The phone restarts and goes to a blank screen.
My phone is a nexus 4. I have android 4.3
I have downloaded twrp, from https://dl.twrp.me/mako/ I've tried the latest, that's
twrp-3.0.2-0-mako.img and i've tried the oldest, that's twrp-2.3.2.3-mako.img and I face the same issue
TIA
The bootloader is unlocked?
Yeah, bootloader is unlocked.
In the end I decided to forget about that command (fastboot boot twrp.img) and just flash the recovery. so, this command fastboot flash recovery twrp.img
I made sure to have the stock recovery too (recovery.img from an archive file from https://developers.google.com/android/nexus/images )
so I could flash that it back to stock, if flashing twrp recovery didn't work. But it worked.
I guess maybe the reason why I got/would get/get a black screen with my command, was because fastboot boot blah.img is to boot a kernel, not to boot a recovery? (I don't know if my terminology is all wrong?)

URGENT!OnePlus6T No TWRP, SystemUI not Responding. Can't Boot to OS Stuck in FASTBOOT

I accidentally flashed a magisk_patched.img thinking that it is going to Install Magisk into my phone.
I entered the following command: fastboot flash boot magisk_patched.img (Not specifying the boot slots)
Once I rebooted, it says system UI is not responding.
I went back to fastboot mode, and entered the following commands knowing it had worked previously before:
fastboot flash boot_a magisk_patched.img
fastboot flash boot_b magisk_patched.img
I tried switching boot slots, but both shows the same error once I am rebooted "System UI not responding".
I have no TWRP installed and I just want to start FRESH. I have the OOS 10.3.1 Zip file ready. I just do not know how to install it.
It also seems like my phone does not want to boot into recovery mode. It is currently stuck in fastboot. Both slots have this error.
Pleasee help me out!
Use MSMDownloadTool to reflash stock image. Follow directions of that. Can be found easily here on forums.
Alternatively, since fastboot is working you can try and use a fastboot version of OOS rom and flash without relocking bootloader.
AdlietMeyer said:
I accidentally flashed a magisk_patched.img thinking that it is going to Install Magisk into my phone.
I entered the following command: fastboot flash boot magisk_patched.img (Not specifying the boot slots)
Once I rebooted, it says system UI is not responding.
I went back to fastboot mode, and entered the following commands knowing it had worked previously before:
fastboot flash boot_a magisk_patched.img
fastboot flash boot_b magisk_patched.img
I tried switching boot slots, but both shows the same error once I am rebooted "System UI not responding".
I have no TWRP installed and I just want to start FRESH. I have the OOS 10.3.1 Zip file ready. I just do not know how to install it.
It also seems like my phone does not want to boot into recovery mode. It is currently stuck in fastboot. Both slots have this error.
Pleasee help me out!
Click to expand...
Click to collapse
I still don't understand why people are so eagerly desperately searching to use patch img method.... We have a working TWRP you just have to fastboot boot temporarily twrp and flash Magisk zip installer....
Anyway, why did you mess with slots? 90% of time it leads to soft brick. You don't need to specify slot when fastbooting an img, it's flashed automatically on active one.
In your situation, try to fastboot flash the ROM, there is a thread in Guide News section providing OOS in fastboot format.
Or use MSMdownload to put your phone in factory fresh state, there is a thread in same section about that it's called 'collection of unbrick tools'
And my thread in same section explains how to root 10.3.1

Cant boot twice to Official twrp 3.3.1.0

After flashing from adb, shows twrp image not signed or corrupt
but when give command fastboot boot twrp it take to twrp.
From bootloader cant reach to twrp again, shows no command.
what to do?
pls help
markmywordz said:
After flashing from adb, shows twrp image not signed or corrupt
but when give command fastboot boot twrp it take to twrp.
From bootloader cant reach to twrp again, shows no command.
what to do?
pls help
Click to expand...
Click to collapse
The message not signed or corrupt is normal because TWRP is signed with an not official signed key.
After flashing official TWRP by fastboot
Code:
fastboot flash recovery name-of-recovery.img
you should immediately boot again to TWRP to make it stick.
You can do that by typing
Code:
fastboot reboot recovery
or if that doesn't work by the key command (power and vol down).

2019 pro stuck in boot loop

Got this working with Lineage ok but decided to go back to stock. I downloaded the stock recovery rom from NV and set everything up. Inside the recovery bundle is a bat file. Usually I would flash all files manually but this time I used the bat file. It manged the first 3 or 4 commands then came up with error. The box is now stuck in a boot loop and I am unable to access over adb.
Can anyone please suggest a way around this.
Thanks
Here is the bat file
fastboot flash staging blob
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img
fastboot flash vendor vendor.img
fastboot flash dtb mdarcy.dtb.img
fastboot flash vbmeta vbmeta.img
fastboot oem lock (optional step: required for certain functionality)
fastboot reboot
EDIT:
Eventually managed to flash lineage zip again. Used USB keyboard to access recovery
may i ask, what kind of keyboard did u use?
thanks in advance

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