System not booting, unable to open recovery and fastboot. Help!!! - OnePlus 2 Q&A, Help & Troubleshooting

Today I decided to root my OP2. I did all the regular procedure for rooting. Fastboot > OEM unlock > Flash TWRP 3.1 > flash SU.zip via TWRP. Now this is where the problem started, after flashing SU.zip I rebooted but it was not rebooting, the 2 white dots kept rotating for quite a long time. so I turned off the phone and flashed the SU.zip again and rebooted but still didn't worked, so I went back to TWRP booted into fast boot and flash a lower version of TWRP, Now TWRP won't even start the screen got stuck on one plus logo. so I powered off again and tried doing a normal start up but that didn't workout, so I tried to start fast boot manually (power button + volume up) but this time the screen didn't even turn on . Is there anything I could do to fix it.

https://forums.oneplus.net/threads/...ck-guide-for-a-hard-bricked-oneplus-2.347607/
use method 2 or method 3 if you have efs backup by terminal or efs backup by spanna software zip. (P.s. dont rely on efs backup by twrp)
and if don't have efs backup then after method 2 or 3 flash oos 3.5.7 to get ur imei numbers.

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[Q] TWRP: "custom recovery" not working anymore, TWRP not starting

Hi there,
I wanted to install latest CM10.1 coming from 0526 yesterday on my Defy+.
Did a backup with TWRP first.
Then the flashing failed, so I wanted to recover from backup.
Phone now is stuck at Motorola M not booting anymore.
When I enter bootloader (vol down) and want to enter "custom recover" he just jumps back to the same menu. TWRP is not starting.
Choosing "stock recovery" is possible, but if I choose a CM10.1 zip file it's not accepted.
RSD Lite does not recognize the phone when it's in the bootloader menu or in the stock recover menu.
Help is very much appreciated, what can I do?
Thanks and best regards.
are edianKa
[Idiot mode=on]
Okay, I found out why I couldn't enter flash mode by using Vol+ when starting.
The phone powered already up when I put in the battery, so I always pushed Vol+ too late.
Pressing Vol+ WHILE inserting the battery did the trick, phone went into flash mode and I could re-flash 2.3.6 sbf using RSD lite.
[Idiot mode=off]
Still not sure why TWRP was messed up just by recovering from a TWRP-made backup...
Best regards
Same situation to me.
I opened Terminal Emulator, gained root access
then type below command to get recovery mode
# reboot recovery
Custom recovery not running
I have a similar issue.
I rooted my stock S4 and installed the proper TWRP.
Heres where my situation is a bit different from anything I have seen on the forum threads. All attempts—both hard and soft—to reboot into recovery, all direct the reboot to Odin Mode. Just to clarify I have not flashed any rom custom or stock, the only thing I have flashed has been TWRP and CWM recovery. And I only flashed CWM AFTER the Failings of TWRP.
When I attempt to boot into recovery, it flashes the blue characters then sends me into a Odin Mode loop until I hard-key the "download mode" and select restart to boot the os normally.
my phone works fine other than not being able to flash custom roms, which is a pain in the arse especially with all the s4 Bloatware.
Here's what I have done so far to help myself:
• install CWM recovery
• tried hard-key reboot recovery (power off/ press home/volume up/power)
• soft reboot recovery through both Goo, CWM and ROM Toolbox pro
• removed my sd card and tried reboot recovery
• removed battery and reboot recovery
• emulator reboot recovery
• reboot recovery both with and without usb cable
I looked into flashing stock with Odin but all tutorials i could find were of an older version and I didnt want to guess what I needed to get that to work,
Please let me know if theres anything I can do.
(Verizon) Samsung Galaxy S4 jfltevzw

Security error after recovery update

I have a d802 . I had cloudy1.3 and twrp 2.7 installed with autorec. I tried to update it using
dd if=/sdcard/recoveryfilename.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
(from twrp page, with the latest img file).
But I coudn't access recovery, some error about security. Then I shutdown my phone and then it booted fine into system. I retried to access recovery but nothing.
So I decided to return to autorec, I installed it, I clicked "Flash Recovery" and now my phone doesn't boot in any way.
It show "lg security error" and then shutdown.
I can access download mode. Is there a way to fix my phone without deleting everything?
I'm sure the problem is the recovery, I was messing with it, can I bring my phone back and don't delete my configuration, photos, apps?
Thanks
I'm so happy!
I did it!!!
I managed to boot into recovery with the usual combination of keys (with the method that ask you if you want to format, but then you press power and it boot into recovery).
From there I saved everything using adb pull (Just in case). Then I dirty flashed Cloudy 1.3 and my phone is back !
I hope my experience can help someone

Moto g5 plus twrp not sticking

When I go to put the official twrp on it doesn't stick after reboot. before reboot I can't flash anything either like magisk. Nothing shows inside the folders and after I reboot and go back to twrp it shows no command
Me too. I've flashed twrp-sanders and also twrp-potter. The phone will never boot into twrp recovery on its own. Also, when I fastboot boot recovery from PC, either version of TWRP loads splash screen but is frozen and requires a hard reset.
The phone is unlocked as it indicates this on boot up.
Only once after the first attempt of flashing twrp-sanders recovery did the phone boot into twrp recovery and I flashed Magisk from there. Since then, no dice
Any ideas or direction would be greatly appreciated. Thank you
Got it to finally work. I started over by flashing "twrp-sanders-r2.img".
Make sure the first thing you do after flashing the recovery is to push volume button until you see the recovery option. Then press power button to select it. It will take several seconds before you can interact with the program.
I made sure I had the magisk.zip ready to flash first thing I did.
If you don't go to recovery immediately after flashing the twrp, you'll have to start over.
I hope this helps

[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:

Cant install twrp in asus max pro m1

After all process i simply type laste sequence
Fastboot flash recovery recovery.img
My phone goes blank and in up corner it shows presa any button to restart and poof nothing happened
Now what to do
I have everything latest version
Android 10
Twrp
Magisk
Etc i need help pls
Vcruzzz said:
After all process i simply type laste sequence
Fastboot flash recovery recovery.img
My phone goes blank and in up corner it shows presa any button to restart and poof nothing happened
Now what to do
I have everything latest version
Android 10
Twrp
Magisk
Etc i need help pls
Click to expand...
Click to collapse
put the phone in charge and when it turns on press the keys to go into recovery mode then format the system and restart the phone
If your phone is properly rooted then install Flashify & use it to flash custom recovery but be aware & make backup prior flashing anything.

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