Issue with unlocked bootloader - OnePlus 5 Questions & Answers

Hey,
I had AOSP rom and i decided to go back to OOS. (xXx rom)
I entered TWRP, Cleaned Data,Cache,Dalvik,System.
And Factory reseted it.
Installed the xXx rom, and i got on the splash screen instead of "Bootloader Unlocked"
And i'm getting "<!>"
And i couldn't boot.
And i can't press volume keys to get to recovery or bootloader, but it boots straight to bootloader.
i entered to TWRP again (Via bootloader), reflashed stock OOS.
It booted, and then i entered bootloader to flash TWRP again, and it didn't succeeded
I enter only Stock Recovery and every time i try to flash Recovery it's succeed but it's does nothing, still entering Stock OOS recovery.
Now i stuck at stock OOS, and stock rocevery.
Can't flash anything.
Can someone tell me what to do?

Best is via ADB flashing latest BlueSpark TWRP (fastboot devices, fastboot flash recovery (name of TWRP).img and then format all so you start with a clean plate. Then move your ROM from PC to Internal and proceed further. But IMO a "format" is needed. Also siakantabg made a flashable zip from the old bootloader. Flash this zip in TWRP first after formatting en wiping everything.
Link old bootloader: https://forum.xda-developers.com/oneplus-5/themes/mod-bootloader-changer-t3800862

Related

Can't access Recovery, only fastboot and the universal bootloader, please help!

So after stupidly trying to update twrp through twrp instead of fastboot, I can only access fastboot and the universal bootloader installed on the phone. If I don't do anything, the phone simply goes through universal bootloader and I see a small penguin before the screen goes back and I need to restart the phone again. However, in the bootloader I can select to go to fastboot which does work. I've tried flashing TWRP through fastboot (fastboot flash recovery twrp...) and it said success however after clicking 'reboot to recovery', the phone once again just boots to the bootloader and I'm back at square one.
Thank you so much if anyone can help!
FYI, you can update TWRP using TWRP. Nothing wrong with that, I do it all the time. It's faster and easier to do so.
You might have an incompatibility between bootstack and TWRP.
So, please provide us more info.
ROM:
Bootstack used:
TWRP version:
What were you trying to do besides updating TWRP?:
Funny thing... I'm having the exact same problem.
I instaled TWRP (3.1.1-0-9c3b7e99) using the AxonToolkit 1.2.1.
Everything went smooth with the toolkit. I could get into TWRP and did some back-ups (as recommended), then wipe Dalvik/ART Cache, System, data, cache, and finally, try to install LineageOS 15.1.
I used the files:
- ZTE_A7LOSv1_UniversalBootStack.zip
- A2017U_OreoModem.zip
- lineage-15.1-20180810-UNOFFICIAL-axon7.zip
UniversalBoot and Modem were installed correctly, but I got an error when trying to install Lineage. I can't remeber the error number but it said something like: "this ROM is for device ailsa_ii_axon7 but this device is ."
Since then... my phone is in eternal loop and can only get into Fastboot. Can't access TWRP.
Thanks in advance to anyone willing to help me.
Don't mind... I have it back.
After many reboots, It only seems that this is working different with the Universal O bootloader. On the main screen, I tap the volumen button, choose "Recovery", reboot, press the power button on the main screen, press it again, the Linux Pinguin appears, press power button again, and then TWRP is back.
After that, I got to wipe and do the normal ROM installation process.

[SOLVED]"No Command" error in recovery mode after flashing TWRP via ADB

What i did stepwise -
1. Unlocked bootloader of my g5 plus
2. Flashed twrp-3.2.3-1-potter.img via adb
3. Booted to TWRP
4. Wiped to decrypt phone
5*. Booted to system to enable usb debugging, enabled it . Transfered magisk , arrow 9.0 rom , gapps to my internal storage of phone
6. Open bootloader , selected recovery mode and got nothing except error "No Command"
So i cannot flashed anything what i wanted to
What and Where i made the mistake ?
How can i get TWRP back?
Thanks all in advance
Solution
1. Flashed magisk17.1 and lazyflasher
2. Updated magisk manager and got root
3. Installed official TWRP app , granted root and downloaded same TWRP.img from which i decrypted the phone.
4. Flashed twrp fom the official twrp app.
5. No irritating No Command error again
The no command screen is that of the stock recovery (that's a normal screen). From your steps, it seems like you booted to system in step 5 rather than back to recovery. It seems that after flashing TWRP, you may have to boot to recovery to fix TWRP as your recovery (else the stock recovery overwrites TWRP). Afterwards, you should be able to boot as normal with TWRP still present.
Easiest way to recover would be to repeat step 2 and 3. Then reboot to recovery in TWRP and that should retain TWRP. Back up your existing system, then flash the ROM, GApps and magisk as desired.
echo92 said:
The no command screen is that of the stock recovery (that's a normal screen). From your steps, it seems like you booted to system in step 5 rather than back to recovery. It seems that after flashing TWRP, you may have to boot to recovery to fix TWRP as your recovery (else the stock recovery overwrites TWRP). Afterwards, you should be able to boot as normal with TWRP still present.
Easiest way to recover would be to repeat step 2 and 3. Then reboot to recovery in TWRP and that should retain TWRP. Back up your existing system, then flash the ROM, GApps and magisk as desired.
Click to expand...
Click to collapse
Thanks for your answer sir , but it didn't work
What I did again
1.I flashed same twrp from adb
2. Booted to recovery , but this time TWRP didn't asked password and I could see internal storage in twrp but not on my PC
3*.However I took the whole backup of stock nougat and cross check from restore option as there was backup in TWRP folder. I wanted copy that backup to my PC . But PC cannot detect my phone while in recovery
4. So booted to system and my PC detected my phone but there was no backup in TWRP folder.( But around 6gb(backup) of storage was used but I couldn't see it)
5.Again booted to recovery mode but "No Command" showed again .
I tried several times but I keep losing TWRP and couldn't see the backup which I make
Same problem. Resolved by flashing alternately several times twrp-3.2.1-0-potter.img and twrp-3.2.1-1-potter_persist.img and finally updated twrp-3.2.3-1-potter.img
It's because of dm-verity. You have to flash something like magisk or a custom kernel that disables it *before* you reboot into stock.
NZedPred said:
It's because of dm-verity. You have to flash something like magisk or a custom kernel that disables it *before* you reboot into stock.
Click to expand...
Click to collapse
I flashed magisk 17.1 and lazyflasher ,i got magisk and root but cannot install modules may be becoz of f2fs bug . By the way i lost twrp after booting to system again and No command still present in recovery mode . I am frustrated Moto software is just pain in head :silly:

TWRP doesn't fully start (H870)

Hello! I have unlocked the bootloader but haven't installed any custom rom and haven't given root yet. After flashing TWRP via "fastboot flash recovery twrp-3.3.0-0-h870.img" and booting into recovery via "fastboot reboot", pressing voldown+power and confirming factory reset, the TWRP logo shows for a few seconds and then the device normally boots without starting TWRP.
fixed by using this unofficial twrp - https://forum.xda-developers.com/lg-g6/development/twrp-t3828254

flashing custom rom via twrp bootloops back to fastboot

Hi, i unlocked the bootloader and flashed twrp with this tutorial:
https://forum.xda-developers.com/le...t/twrp-unofficial-twrp-lenovo-z6-pro-t4035987
Now when i install any custom rom it boot loops once and loads into fastboot.
Any idea how to fix this?
i should clarify the rom install says it succeeded but when i reboot it loads into fastboot.
after manually flashing files from the most recent stock CN rom, i was able to boot into paranoid android. no clue what exactly fixed it but whatever.

[HELP] Can't Boot Into Any Recovery

Hello,
Previously I had flashed LineageOS v18 which had few bugs.
Then I flashed Android 10 official beta downloaded from Asus site (UL-ASUS_X00P-WW-AOSP-17.00.2003.23-user.zip).
Now I want to go back to another custom ROM but I am unable to boot into any recovery - stock recovery as well as TWRP.
- I have confirmed the bootloader is unlocked.
- Can't boot into stock recovery. Phone directly boots into OS.
- Tried "installing" TWRP in fastboot mode (fastboot flash recovery.img). Installation goes fine but when I reboot, the phone boots straight to OS instead of going into recovery.
- Tried "booting" TWRP in fastboot mode (fastboot boot recovery.img). Installation goes fine but when I reboot, the phone boots straight to OS instead of going into recovery.
- Tried both methods for booting into recovery (pressing the buttons as well as giving a command via fastboot).
Questions:
1. How can I boot into recovery?
2. If I can't boot into recovery, what can I do to flash a custom ROM?

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