Database Info

Phone won't boot or get into TWRP

Hey Guys!
I've accidently rebooted the phone while on TWRP after full wipe without instaling new rom. Now it won't pass the initial screen (htc quietly briliant), or get into the TWRP mode.
What can I do?
I just had instaled the King Kang rom...

manually boot into bootloader. volume down + power. then "fastboot flash boot boot.img" the boot.img for the rom you want to flash. then boot into recovery from bootloader.

brunomcf said:
Hey Guys!
I've accidently rebooted the phone while on TWRP after full wipe without instaling new rom. Now it won't pass the initial screen (htc quietly briliant), or get into the TWRP mode.
What can I do?
I just had instaled the King Kang rom...
Click to expand...
Click to collapse
Hold power button and volume down until the phone turns off
release power but not volume down.
This will eventually load you into hboot, from there you can access TWRP.
You forgot to flash the boot.img didn't you?

Thanks for the help guys!
Trying to flash King Kang again. That's the only one I have in my internal memory.
Probably not the best option as it got stuck on the initiating swagger...
How long does it take to pass this screen? Lost my patient after 5 minutes and I've restarted it...
What rom do u guys suggest? I just want sth simple and easy to use...

remember to flash boot.img in fastboot

DvineLord said:
remember to flash boot.img in fastboot
Click to expand...
Click to collapse
What's that for? Already instaled the rom, and it hasn't gone throw the "initialization swagger"...

brunomcf said:
What's that for? Already instaled the rom, and it hasn't gone throw the "initialization swagger"...
Click to expand...
Click to collapse
its the kernel.
you are at a boot loop cause its not installed

DvineLord said:
remember to flash boot.img in fastboot
Click to expand...
Click to collapse
what was that about creating an irc channel ? lol

Hasoon AIO kit won't recognize my device. How can I flash the kernel then?
btw: it says ***Tampered*** on top of unlocked on fastboot

brunomcf said:
Hasoon AIO kit won't recognize my device. How can I flash the kernel then?
btw: it says ***Tampered*** on top of unlocked on fastboot
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1963896

Ok guys. Problem solved! Thanks all of you from the other side of the Atlantic!

HELP!!
mirGantrophy said:
Hold power button and volume down until the phone turns off
release power but not volume down.
This will eventually load you into hboot, from there you can access TWRP.
You forgot to flash the boot.img didn't you?
Click to expand...
Click to collapse
I clean installed a ROM, but it stays stuck in boot up animation. So I headed your advice.. But its not working. All I can do is start Odin mode and watch my boot up animation run. Over and over.
I can't find a work around so I can get back to TWRP and go back to a rom that offers at least more than a boot up animation
Any ideas?

h_ray_a said:
I clean installed a ROM, but it stays stuck in boot up animation. So I headed your advice.. But its not working. All I can do is start Odin mode and watch my boot up animation run. Over and over.
I can't find a work around so I can get back to TWRP and go back to a rom that offers at least more than a boot up animation
Any ideas?
Click to expand...
Click to collapse
step 1. Boot into Bootloader Power+volume down
step 2. go to pc and flash recovery again with fastboot. fastboot flash recovery.img (make sure its in your adb folder)
step 3. while still in fastboot type: fastboot reboot recovery
step 4. Grab a beer, your back in recovery. flash away (and remember to flash boot.img via fastboot or you will boot loop if on hboot 1.14 and up

h_ray_a said:
All I can do is start Odin mode and watch my boot up animation run.
Click to expand...
Click to collapse
Odin mode???
Do you have a Samsung phone? This forum is for the HTC One X/XL.

use hasoon toolkit and put radio in folder then flash via fastboot

[Q] Getting back recovery and root after OTA to CM12s

Hello,
I have recived the OTA today and I flashed it and now I dont have a custom recovery and root. What steps do I need to take to get those things back? I have tried to use this guide https://forums.oneplus.net/threads/...oader-install-custom-recovery-and-root.64487/ but after flashing recovery.img through ADB I still have normal CM recovery.

Go to Developer Options in Settings and disable the "update CM recovery" option.
Transmitted via Bacon

It has been disabled the whole time

Ok. So you say you're flashing the recovery through adb but that's impossible so I'm assuming you're flashing with fastboot, right?
Transmitted via Bacon

I'm not really good in those names.. I have isnerted a screenshot from this program.

xamilek555 said:
I'm not really good in those names.. [emoji14] I have isnerted a screenshot from this program.
Click to expand...
Click to collapse
Looks ok. Where are you getting the recovery from? Did you rename it to "recovery.img" for a reason?
Transmitted via Bacon

I've got that file from TWRP website and I renamed it to recovery.img. I have succesfully booted into this recovery with a command "fastboot boot recovery.img" which allowed me to flash root and xposed form it but after rebooting the phone the old recovery remains...

I have the same problem. Flash TWRP says it's flashed OK, but when I reboot to recovery it's still stock.

Linnyuk said:
I have the same problem. Flash TWRP says it's flashed OK, but when I reboot to recovery it's still stock.
Click to expand...
Click to collapse
Try updating the Android SDK. That's what worked for me. ?
Sent from my A0001 using Xparent BlueTapatalk 2

I've downloaded fresh verison today so it isnt the solution in my case :/
Somebody gave me this solution and it worked!
fastboot erase recovery
fastboot reboot-bootloader
fastboot flash recovery recovery.img

xamilek555 said:
I've downloaded fresh verison today so it isnt the solution in my case :/
Somebody gave me this solution and it worked!
fastboot erase recovery
fastboot reboot-bootloader
fastboot flash recovery recovery.img
Click to expand...
Click to collapse
Same situation here...this solution isn't working for me, same problem, always Cyanogen based recovery...

After flashing new recovery, when you go to reboot, hold down Vol-Down and Power before it boots into the OS and it should load the new recovery. Had this problem myself earlier today, if you let it boot to the OS, it flashes back the CM recovery.

mozyman said:
After flashing new recovery, when you go to reboot, hold down Vol-Down and Power before it boots into the OS and it should load the new recovery. Had this problem myself earlier today, if you let it boot to the OS, it flashes back the CM recovery.
Click to expand...
Click to collapse
It works! I think it because of the dev settings into CM12S which force the recovery to be CM12S' one.
Thanks

Messatsu said:
It works! I think it because of the dev settings into CM12S which force the recovery to be CM12S' one.
Thanks
Click to expand...
Click to collapse
I'm having the same problem, can someone go over start to finish how they fixed this issue?

What worked for me
I previously had TWRP installed, wiped and did the C12S flash but didn't flash SuperSu before rebooting. This removed TWRP and brought me to Cynogen Recovery whenever going into recovery mode (Vol Dwn + Power). This also removed the root from my phone. To fix this took some digging and I came up with the following solutions as long as you had TWRP installed at one point. If not then unlock your boot loader and re install. I named my TWRP File Recovery just to keep things simple, but whatever your TWRP Filename is put that in at #5.
1) Enter Fastboot Mode (Vol Up + Power)
2) On your computer open command prompt (Ctrl R)
3) Plug your phone in
4) Type the following minus the quotes
"cd desktop/android-sdk-windows/platform-tools"
5) fastboot boot recovery.img
This will boot your TWRP, you can then go to flash your SuperSu file and you're done!

im having this issue too : /

mozyman said:
After flashing new recovery, when you go to reboot, hold down Vol-Down and Power before it boots into the OS and it should load the new recovery. Had this problem myself earlier today, if you let it boot to the OS, it flashes back the CM recovery.
Click to expand...
Click to collapse
I've tried so many things today, this is the only thing that worked. Thank You!

mozyman said:
After flashing new recovery, when you go to reboot, hold down Vol-Down and Power before it boots into the OS and it should load the new recovery. Had this problem myself earlier today, if you let it boot to the OS, it flashes back the CM recovery.
Click to expand...
Click to collapse
It works! I had the issue and this procedure solved it ! Thanks !!! :good::good::good:

Hi all,
I have just installed CM12s on my OPO and it was meant to install TWRP but each time i go into recovery to install SuperSU its still CM Recovery
1) Enter Fastboot Mode (Vol Up + Power)
2) On your computer open command prompt (Ctrl R)
3) Plug your phone in
4) Type the following minus the quotes
"cd desktop/android-sdk-windows/platform-tools"
5) fastboot boot recovery.img
Click to expand...
Click to collapse
I have done that and yey TWRP appeared and i Installed SuperUser but when i clicked on the app it said there was an issue with the binary, so i thought i would reboot into recovery and install it again...but CM recovery appeared again
Originally Posted by mozyman
After flashing new recovery, when you go to reboot, hold down Vol-Down and Power before it boots into the OS and it should load the new recovery. Had this problem myself earlier today, if you let it boot to the OS, it flashes back the CM recovery.
Click to expand...
Click to collapse
I thought i would give that a try but nothing seems to happen, the screen just goes black. Im reboting my OPO and when the white OPO logo appears im holding the buttons down....is this too soon or too late?
Originally Posted by xamilek555
I've downloaded fresh verison today so it isnt the solution in my case :/
Somebody gave me this solution and it worked!
fastboot erase recovery
fastboot reboot-bootloader
fastboot flash recovery recovery.img
Click to expand...
Click to collapse
I have even attempted to do that but it doesnt seem to work....
Can someone help me out here....

After flashing new recovery, when you go to reboot, hold down Vol-Down and Power before it boots into the OS and it should load the new recovery. Had this problem myself earlier today, if you let it boot to the OS, it flashes back the CM recovery.
Click to expand...
Click to collapse
it works thank you...!!

Need Help. Nexus 5 says google when trying to turn on

I was trying to get the latest twrp '2.8.7.2'. I downloaded it and flashed the img to recovery and nothing seemed to happen so I tried flashing it to boot then I tried to reboot the system. Now when I try to turn it on I get stuck on the Google like it is turning but it just gets stuck. I tried Charging it now when I charge it I get stuck on the battery logo. When I try booting it Booting it into recovery(twrp) I get a black screen. I can tell the Screen is on because of the dim glow it gives off but it is not doing anything. Note: I am some what of a noob when it comes to this stuff, My nexus 5 was running Marshmallow, and I was running the Xtra smooth rom (it is very close to stock). Plz help. I have also just found out that the reason im getting the bootloop is I flashed the wrong version of TWRP need a fix PLZ HELP.

Did you try flashing stock recovery or twrp 2.8.7.1?

audit13 said:
Did you try flashing stock recovery or twrp 2.8.7.1?
Click to expand...
Click to collapse
I cant flash anything because it is stuck. If you can tell me how to do that it would be great. also I gave you the thanks thing.

Judah04 said:
I cant flash anything because it is stuck. If you can tell me how to do that it would be great. also I gave you the thanks thing.
Click to expand...
Click to collapse
All you have to do is boot into your bootloader (Power + Volume Up + Volume Down at the same time) and flash the stock recovery.
fastboot flash recovery recovery.img
Chances are you flashed an incorrect version of TWRP meant for another phone hence the boot loop.

asawoszc said:
All you have to do is boot into your bootloader (Power + Volume Up + Volume Down at the same time) and flash the stock recovery.
fastboot flash recovery recovery.img
Chances are you flashed an incorrect version of TWRP meant for another phone hence the boot loop.
Click to expand...
Click to collapse
When i boot into recovery mode the screen is on but it is black.

asawoszc said:
All you have to do is boot into your bootloader (Power + Volume Up + Volume Down at the same time) and flash the stock recovery.
fastboot flash recovery recovery.img
Chances are you flashed an incorrect version of TWRP meant for another phone hence the boot loop.
Click to expand...
Click to collapse
Also yes i do think I flashed the wrong TWRP. how do I flash the correct TWRP when I can't even get back into a tool to flash it?

Judah04 said:
When i boot into recovery mode the screen is on but it is black.
Click to expand...
Click to collapse
You dont need recovery, you need bootloader.

telep said:
You dont need recovery, you need bootloader.
Click to expand...
Click to collapse
Can you please explain to me exactly what to do. thank you. also my bootloader is unlocked. I also can get to fastboot so what is the diffrence between bootloader and fastboot.

Hold down the volume +, volume -, and power button. You'll be taken to a screen with the word START at the top. Now, connect the phone to your Windows computer using the USB cable, open a command prompt and type "fastboot flash recovery nameof twrpfile.img", press the enter key, use the volume button to select recovery, use the power button to enter recovery, press the power button, press volume + button, and you should enter TWRP.

Thank you but I do not own a windows computer

Then look up the respective commands. You flashed twrp over your kernel, you need to flash a proper boot.img (kernel) if you want the phone to boot. Fastboot is ran through bootloader. Flash the proper kernel in bootloader using fastboot.

wangdaning said:
Then look up the respective commands. You flashed twrp over your kernel, you need to flash a proper boot.img (kernel) if you want the phone to boot. Fastboot is ran through bootloader. Flash the proper kernel in bootloader using fastboot.
Click to expand...
Click to collapse
Thank you this sounds like it will work. But can you put it in more simple terms and give me links? plz. thx in advance.

Do you have access to a Windows computer to flash the commands? How did you flash TWRP?

audit13 said:
Do you have a computer?
Click to expand...
Click to collapse
I have a macbok air running mac os x 10.5.8.

audit13 said:
Do you have access to a Windows computer to flash the commands? How did you flash TWRP?
Click to expand...
Click to collapse
I flashed TWRP using the TWRP app it installed TWRP 2.8.7.1 I also unlocked the bootloader with a similar app.

This might help: http://forum.xda-developers.com/goo...olkit-root-twrp-recovery-unroot-11-6-t2515640

audit13 said:
This might help: http://forum.xda-developers.com/goo...olkit-root-twrp-recovery-unroot-11-6-t2515640
Click to expand...
Click to collapse
Just cheked it out I tried it and it didn't work but thx anyway. btw I am running android 6.0.

audit13 said:
This might help: http://forum.xda-developers.com/goo...olkit-root-twrp-recovery-unroot-11-6-t2515640
Click to expand...
Click to collapse
It might not have been working because I did not enable USB Debuging. :crying:

USB debugging is required for adb commands. With fastboot mode, debugging isn't necessary.

audit13 said:
USB debugging is required for adb commands. With fastboot mode, debugging isn't necessary.
Click to expand...
Click to collapse
Can you please walk me through this i am some what of a beginner when it comes to some of these things. I can try the tool kits agin but need help.

How can I root project spectrum?

Are there any tools around for rooting Spectrum on the R7Plusf?

W1F1 said:
How am I able to root project spectrum on the Oppo R7 Plus?
Thanks in advance!
Click to expand...
Click to collapse
Hello, W1F1. There is no way at this point in time to root Project Spectrum on Oppo R7Plus as TWRP isnt compatible. They changed a lot when they made Project Spectrum. For now there is no TWRP. So there is no way to root. It's Fastboot is also set to non-root access making is hard to use the command (fastboot flash recovery _TWRP-HERE_) but not impossible to flash the stock recovery and then ColorOS to get back to safety (by safety I mean CyanogenMod 14.1 [OFFICIAL] or AICP [UNOFFICIAL]). All you need to do is ask and I'll give you the links.

EximusCode said:
Hello, W1F1. There is no way at this point in time to root Project Spectrum on Oppo R7Plus as TWRP isnt compatible. They changed a lot when they made Project Spectrum. For now there is no TWRP. So there is no way to root. It's Fastboot is also set to non-root access making is hard to use the command (fastboot flash recovery _TWRP-HERE_) but not impossible to flash the stock recovery and then ColorOS to get back to safety (by safety I mean CyanogenMod 14.1 [OFFICIAL] or AICP [UNOFFICIAL]). All you need to do is ask and I'll give you the links.
Click to expand...
Click to collapse
Thanks for the reply! So I could use stock recovery to get back to a version of color os that has fastboot enabled, and then get TWRP and then cyanogen mod from there?

W1F1 said:
Thanks for the reply! So I could use stock recovery to get back to a version of color os that has fastboot enabled, and then get TWRP and then cyanogen mod from there?
Click to expand...
Click to collapse
Bingo my friend. If you want the links you need only ask. :good:

EximusCode said:
Bingo my friend. If you want the links you need only ask. :good:
Click to expand...
Click to collapse
The links would be fantastic, thanks so much!

W1F1 said:
The links would be fantastic, thanks so much!
Click to expand...
Click to collapse
Will post them ASAP

Thanks!

W1F1 said:
Thanks!
Click to expand...
Click to collapse
Recovery:http://goo.gl/1AdXkD
ROM:https://s3.amazonaws.com/public.opp...olorOS/Specified_ColorOS_R7plusf_full_014.zip
0. Move all files to external MicroSD card *rename the ROM to update.zip*
1. Flash the recovery.img to recovery partition. With (fastboot flash recovery "recovery.img) *remember to put the recovery.img file in the ADB and Fastboot file for easier transfer*
2. Reboot into the system recovery and select Update, then go to where you put your ROM and select it
3. Wait for it to flash and then reboot
4. Your reboot will hang. Leave it do that for about 5 minutes, then reboot into fastboot mode again.
5. Seeing as you are now on a ROM with an unlocked bootloader you will be able to now flash TWRP recovery with the command (fastboot flash recovery "TWRPRECOVERYNAME") *I used TWRPRECOVERYNAME as an example as to where the recovery file needs to go. You should also have this in the ADB and Fastboot folder*

EximusCode said:
Will post them ASAP
Click to expand...
Click to collapse
I'm sorry but I can't seem to download from app.box, even after creating an account. Could you please upload the recovery to somewhere else like google drive?
EDIT: Whoops disregard that I managed to download it.

W1F1 said:
I'm so so sorry but I can't seem to download from app.box, even after creating an account. Could you please upload the recovery to somewhere else like google drive?
Sorry again.
EDIT: Sorry disregard that I managed to download it.
Click to expand...
Click to collapse
Hope it works for you like it did for me :good:

EximusCode said:
Recovery:http://goo.gl/1AdXkD
ROM:https://s3.amazonaws.com/public.opp...olorOS/Specified_ColorOS_R7plusf_full_014.zip
0. Move all files to external MicroSD card *rename the ROM to update.zip*
1. Flash the recovery.img to recovery partition. With (fastboot flash recovery "recovery.img) *remember to put the recovery.img file in the ADB and Fastboot file for easier transfer*
2. Reboot into the system recovery and select Update, then go to where you put your ROM and select it
3. Wait for it to flash and then reboot
4. Your reboot will hang. Leave it do that for about 5 minutes, then reboot into fastboot mode again.
5. Seeing as you are now on a ROM with an unlocked bootloader you will be able to now flash TWRP recovery with the command (fastboot flash recovery "TWRPRECOVERYNAME") *I used TWRPRECOVERYNAME as an example as to where the recovery file needs to go. You should also have this in the ADB and Fastboot folder*
Click to expand...
Click to collapse
Ok I'm still having an issue. The flashing of the recovery goes through successfully but when I try to enter recovery mode it simply shows the Oppo logo and the screen goes black. Like it's been doing with all the recovery's that I've tried. If I try the "fastboot boot recovery.img" it has this error:
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot boot recovery.img
downloading 'boot.img'...
OKAY [ 0.485s]
booting...
FAILED (remote: dtb not found)
finished. total time: 0.553s

W1F1 said:
Ok I'm still having an issue. The flashing of the recovery goes through successfully but when I try to enter recovery mode it simply shows the Oppo logo and the screen goes black. Like it's been doing with all the recovery's that I've tried. If I try the "fastboot boot recovery.img" it has this error:
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot boot recovery.img
downloading 'boot.img'...
OKAY [ 0.485s]
booting...
FAILED (remote: dtb not found)
finished. total time: 0.553s
Click to expand...
Click to collapse
After flashing recovery, type (fastboot reboot) Before you press enter, hold down the Volume - button (on the phone) and simultaneously press enter. You should then be able to boot to stock recovery
JUST REMEMBER TO NOT BOOT BACK INTO SPECTRUMOS. This will reset the recovery partition as it locks it on boot

EximusCode said:
After flashing recovery, type (fastboot reboot) Before you press enter, hold down the Volume - button (on the phone) and simultaneously press enter. You should then be able to boot to stock recovery
JUST REMEMBER TO NOT BOOT BACK INTO SPECTRUMOS. This will reset the recovery partition as it locks it on boot
Click to expand...
Click to collapse
Sadly no all it does is show the Oppo logo, and then when it should show the recovery screen it just goes black. I think it's something to do with the DTB error before.

W1F1 said:
Sadly no all it does is show the Oppo logo, and then when it should show the recovery screen it just goes black. I think it's something to do with the DTB error before.
Click to expand...
Click to collapse
Please give me some more time. I will find some more info. I will be back to you as soon as I have found some more.

EximusCode said:
Please give me some more time. I will find some more info. I will be back to you as soon as I have found some more.
Click to expand...
Click to collapse
Thank you. I have looked around a lot and I believe creating a new recovery img using the dt from here might work: https://github.com/TeamWin/Team-Win-Recovery-Project/issues/716
Please let me know if you find something.

W1F1 said:
Thank you. I have looked around a lot and I believe creating a new recovery img using the dt from here might work: https://github.com/TeamWin/Team-Win-Recovery-Project/issues/716
Please let me know if you find something.
Click to expand...
Click to collapse
You could very well try that and it work. I have limited knowledge when it comes to development of ROMs and Recoveries so I'm not too sure how you will fair, it may take a bit of trial and error. Tell me how you go with it

EximusCode said:
You could very well try that and it work. I have limited knowledge when it comes to development of ROMs and Recoveries so I'm not too sure how you will fair, it may take a bit of trial and error. Tell me how you go with it
Click to expand...
Click to collapse
Update:
Bad news: Unfortunately my phone is now stuck in a boot loop.
Good news: Using a recovery provider by the user "Ricky" on the first page of this thread: http://community.oppo.com/en/forum.php?mod=viewthread&tid=46395&extra=&page=1 I have been able to flash the stock recovery and it is now working. Because of the boot loop problem I am reinstalling Spectrum through recovery to try and get out of that, then hopefully I will be able to flash back to Color OS if the boot loop stops.

W1F1 said:
Update:
Bad news: Unfortunately my phone is now stuck in a boot loop.
Good news: Using a recovery provider by the user "Ricky" on the first page of this thread: http://community.oppo.com/en/forum.php?mod=viewthread&tid=46395&extra=&page=1 I have been able to flash the stock recovery and it is now working. Because of the boot loop problem I am reinstalling Spectrum through recovery to try and get out of that, then hopefully I will be able to flash back to Color OS if the boot loop stops.
Click to expand...
Click to collapse
Is it just the boot animation continuously playing? If so, this is when you need to turn off your phone and right as the screen goes off press and hold the volume + button. This will put you back in fastboot. Once you are there flash the TWRP recovery. After that hold the volume - and type fastboot reboot. This will boot you to TWRP recovery

EximusCode said:
Is it just the boot animation continuously playing? If so, this is when you need to turn off your phone and right as the screen goes off press and hold the volume + button. This will put you back in fastboot. Once you are there flash the TWRP recovery. After that hold the volume - and type fastboot reboot. This will boot you to TWRP recovery
Click to expand...
Click to collapse
All good, I erased data in recovery and now it's working. Now to flash back to Color OS in recovery.

W1F1 said:
All good, I erased data in recovery and now it's working. Now to flash back to Color OS in recovery.
Click to expand...
Click to collapse
Okay, good luck

Twrp red exclamation

Tried installing​ twrp but everytime I reboot the red exclamation keeps popping if I choose recover as I fail to install the latest twrp. Any fix? Thank you. Currently on stock MM and not rooted.

Try it in this order:
1. fastboot flash recovery twrpfilename.img
2. fastboot boot twrpfilename.img

berbat0v said:
Try it in this order:
1. fastboot flash recovery twrpfilename.img
2. fastboot boot twrpfilename.img
Click to expand...
Click to collapse
Still the same. Already tried that on latest twrp.

Can you take a photo of it and post here?

aciupapa said:
Can you take a photo of it and post here?
Click to expand...
Click to collapse
I'll post it tomorrow. Still wonder why can't i install the recovery. Can't wait to flash nougat ROMS right now. Nexus is so complicated compared to my previous LG G2.

Every time I reboot to system I still can't go to recovery as the exclamation persists when I press recovery on fastboot mode. What could be missing?

Hiyaslalabs said:
Every time I reboot to system I still can't go to recovery as the exclamation persists when I press recovery on fastboot mode. What could be missing?
Click to expand...
Click to collapse
On the exclamation screen if you press and hold the power button and then press the volume up button you will go into stock recovery. If you want TWRP, I say restart from scratch. Its never failed me. Update to the latest bootloader by flashing the latest factory image(M4B30Z) with instructions found here: https://developers.google.com/android/images#hammerhead
Keep the bootloader unlocked then flash the latest twrp and see the result.

Device is already in latest stock marshmallow. Still the same.

berbat0v said:
Try it in this order:
1. fastboot flash recovery twrpfilename.img
2. fastboot boot twrpfilename.img
Click to expand...
Click to collapse
This helped me, thanks very much.
Rebooting with adb reboot recovery or fastboot reboot-recovery did not work and resulted in the red exclamation mark android.
Android version for my bullhead device is Oreo
Edit: The red exclamation is just stock recovery btw. You can still enter recovery mode with Power Button + Tap Volume Up.