Database Develop

[Q] Sprint HTC M8 stuck in boot loop and unable to access recovery

My m8 is stuck in a boot loop and i am unable to access the recovery to factory reset the phone. Its been like this for 2 days now, and i have not found any solid help on the matter. I can get into hboot, however fastboot does not work and i cannot get into the recovery (the options are there, but when i press them they just disappear and nothing happens). If i connect the phone to my pc, the fastboot usb option shows up.
What im looking for are some step by step instructions on how to fix the matter. Ive posted on the /r/techsupport subreddit, and ive been told to either use an RUU or try and reflash a recovery, but without the instructions on how to do so.

oats123 said:
My m8 is stuck in a boot loop and i am unable to access the recovery to factory reset the phone. Its been like this for 2 days now, and i have not found any solid help on the matter. I can get into hboot, however fastboot does not work and i cannot get into the recovery (the options are there, but when i press them they just disappear and nothing happens). If i connect the phone to my pc, the fastboot usb option shows up.
What im looking for are some step by step instructions on how to fix the matter. Ive posted on the /r/techsupport subreddit, and ive been told to either use an RUU or try and reflash a recovery, but without the instructions on how to do so.
Click to expand...
Click to collapse
You have some options
Non-s-off
fastboot flash a recovery with this command
Code:
fast boot flash recovery recovery.img
if your s-off
use caption_throwback's bootloader flashable twrp with your external SD card
use the Harman Kardon ruu
Sent From my Evo 3D with the dark Lords kernel

[Q] Stuck in endless bootloop and recovery is not working either.

Hi everyone
Since I restarted my phone last night, my phone has been in a endless bootloop and I can't even enter recovery, without it rebooting again and going into the same endless bootloop again, around 2 seconds after showing the "Teamwin" logo.
I'm using ARHD, and if I remember correctly it's version 71.1. TWRP is "openrecovery-twrp-2.6.3.3-m7" and running ElementalX kernel.
I expect my partition is somehow corrupted, but I'm at a loss of ideas as to how I can recover my phone again. I would apreciate if I could somehow manage to make a backup of my data, but it that's totaly hopeless, I'm thinking of going for the ArtMOD ROM instead and starting fresh.
Is there a helpfull soul out there, that could maybe give me some insights as to what I can do from here? Thanks in advance!

I was hoping I could install a stock ROM and start from scratch again, but I somehow suspect having used a modified ROM has gotten me in trouble now and the ROM Upgrade utility sees this as a downgrade. I've not been able to find a newer ROM for the .401. series than "RUU_M7_UL_K44_SENSE55_MR_HTC_Europe_4.19.401.9_R_Radio_4A.23.3263.28_10.38r.1157.04L_release_353069_signed_2-1.exe". Although the updater believes I'm updating from 4.19.401.11 (the ARHD ROM).
I can get into FASTBOOT USB and the phone goes to the black HTC logo screen when trying to update, but quickly fails on the PC during the process at "Updating 1/5". When unplugging the USB cable the phone shows:"
RUU
Security fail!
Update Fail!
I've attached two screenshots, to better explain
Can some kind soul out there please help me getting a working phone again? What ROM I'll end up with doesn't really matter

Since you're using unlocked bootloader, why don't you try RUU to get back on Stock ROM.
Here is the collection of ROMS
Download your ROM.
from Windows Command prompt
adb reboot bootloader #
If it didn't work, Press and Hold Power button along with Volume down of your phone,
When you reach to bootloader, get into fastboot mode.
Now follow the following commands to restore the STOCK Rom. (make sure your downloaded ROM are in the same directory where you have fastboot.exe, abd, and abdwin.api etc)
1) fastboot erase cache
2) fastboot oem rebootRUU
3) fastboot flash zip RUU.zip (RUU.zip is of course your downloaded Stock ROM). If it says Failed, try again.
4) fastboot erase cache
5) fastboot reboot-bootloader
6) fastboot reboot
Good Luck
Hope that helps.

Thank you so much for helping out!
After several tries, tries and retries, I finally managed to get the phone back up and running with the stock ROM. I believe what finaly did the trick, was to use "fastboot oem lock" to get the stock ROM installed. From here, I'm now able to unlock it again and install a custom recovery (TWRP) and ROM (I went for ARTMOD). Thanks again!!!

Cannot connect to fastboot through ADB

Hi guys. I've had my HTC one for a while now and it had TWRP flashed on it. About a week ago I flashed the android revolution rom, worked well but my camera went really weird if I looked back at some recordings. So I wanted to revert back to stock everything. I flashed a stock recovery for the M7, after that I had the problem of not being able to connect my device to the computer when I fastboot mode. Simply wouldn't pick it up when I typed ADB devices in cmd. My device wouldn't show up after installing stock recovery. And it doesn't want to restore any roms either in stock recovery mode. I can't even access my folders in that mode to flash any roms. I click either apply from sd card, apply from phone storage. Says for a split second check CID failed or something and reboots itself.
I cannot flash TWRP back cause my computer since it can't pick it up. I've tried everything. Changing USB ports, uninstalling my drives for htc. Changing computers, unlocking, relocking bootloader. No result. I'm screwed cause I'm stuck on this android revolution rom, rooted. Just wanna flash custom recovery. I can connect it to my computer, access folders and add things to it but soon as I turn it off and go into fastboot mode it says fastboot usb and can hear the noise when its connected but it doesn't show up in adb devices and when I flash the TWRP it starts send then comes up with FAILED. Help please, would be appreciated!

Stevo001457 said:
Hi guys. I've had my HTC one for a while now and it had TWRP flashed on it. About a week ago I flashed the android revolution rom, worked well but my camera went really weird if I looked back at some recordings. So I wanted to revert back to stock everything. I flashed a stock recovery for the M7, after that I had the problem of not being able to connect my device to the computer when I fastboot mode. Simply wouldn't pick it up when I typed ADB devices in cmd. My device wouldn't show up after installing stock recovery. And it doesn't want to restore any roms either in stock recovery mode. I can't even access my folders in that mode to flash any roms. I click either apply from sd card, apply from phone storage. Says for a split second check CID failed or something and reboots itself.
I cannot flash TWRP back cause my computer since it can't pick it up. I've tried everything. Changing USB ports, uninstalling my drives for htc. Changing computers, unlocking, relocking bootloader. No result. I'm screwed cause I'm stuck on this android revolution rom, rooted. Just wanna flash custom recovery. I can connect it to my computer, access folders and add things to it but soon as I turn it off and go into fastboot mode it says fastboot usb and can hear the noise when its connected but it doesn't show up in adb devices and when I flash the TWRP it starts send then comes up with FAILED. Help please, would be appreciated!
Click to expand...
Click to collapse
Adb only works if you'te booted to OS or custom recovery. Command you're looking for in bootloader menu is "fastboot devices"

Fala Puno. Ja sam raditi sada. I'm of Croatian decent in Australia. I'll try this later when I return home

Fixed it! I'm an idiot, I didn't realise I was flashing the m8 twrp instead of m7. That's why it failed. Lol. Anyway thanks

Nexus 6 Marshmallow stuck in fastboot loop

I have a relatively new Nexus 6. The last phone that I rooted was the old HTC Hero, and things have changed! I had unlocked the bootloader and rooted the phone under 5.1.1 and when I flashed Marshmallow 6.0 yesterday I lost root.
So I decided that I would try to root the phone again. I had problems with the drivers... my PC would recognize the phone when it was powered up normally but as soon as I booted into fastboot I couldn't get ADB to find it.
Then I went to this link: http://www.theandroidsoul.com/marshmallow-root-for-nexus-5-6-7-9-and-player-by-chainfire-84862/
got my fastboot and adb set up and working, followed his instructions to get root, flashed the twrp image, and flashed the SuperSU file. Everything seemed to work properly. Made a complete backup using twerp and transferred it to my PC via USB.
After all this a tap on Reboot System was supposed to restart the phone. Didn't happen.
I'm stuck in a fastboot recovery loop. Whenever I power down and try to turn the phone on I come back to the fastboot screen. When I elect to go into "recovery" it opens the twrp screen on my phone which asks for my pin and then I have the twrp screen with the regular options.
This is new to me... I don't know if access to the twrp screen and its commands is a help or not, but I do realize that the adb and fastboot on my PC is necessary for about anything I need to do and it seems to be working. I believe that I've described my situation accurately...
Any help appreciated!

turnagerg said:
I have a relatively new Nexus 6. The last phone that I rooted was the old HTC Hero, and things have changed! I had unlocked the bootloader and rooted the phone under 5.1.1 and when I flashed Marshmallow 6.0 yesterday I lost root.
So I decided that I would try to root the phone again. I had problems with the drivers... my PC would recognize the phone when it was powered up normally but as soon as I booted into fastboot I couldn't get ADB to find it.
Then I went to this link: http://www.theandroidsoul.com/marshmallow-root-for-nexus-5-6-7-9-and-player-by-chainfire-84862/
got my fastboot and adb set up and working, followed his instructions to get root, flashed the twrp image, and flashed the SuperSU file. Everything seemed to work properly. Made a complete backup using twerp and transferred it to my PC via USB.
After all this a tap on Reboot System was supposed to restart the phone. Didn't happen.
I'm stuck in a fastboot recovery loop. Whenever I power down and try to turn the phone on I come back to the fastboot screen. When I elect to go into "recovery" it opens the twrp screen on my phone which asks for my pin and then I have the twrp screen with the regular options.
This is new to me... I don't know if access to the twrp screen and its commands is a help or not, but I do realize that the adb and fastboot on my PC is necessary for about anything I need to do and it seems to be working. I believe that I've described my situation accurately...
Any help appreciated!
Click to expand...
Click to collapse
how about this, adb NEVER EVER works in fastboot mode. that is reserved exclusively for fastboot. you have to use fastboot to flash a recovery, then the recovery to flash supersu.
---------- Post added at 04:49 PM ---------- Previous post was at 04:48 PM ----------
now it also seems as you have to fastboot flash a factory image as well.

turnagerg said:
I have a relatively new Nexus 6. The last phone that I rooted was the old HTC Hero, and things have changed! I had unlocked the bootloader and rooted the phone under 5.1.1 and when I flashed Marshmallow 6.0 yesterday I lost root.
So I decided that I would try to root the phone again. I had problems with the drivers... my PC would recognize the phone when it was powered up normally but as soon as I booted into fastboot I couldn't get ADB to find it.
Then I went to this link: link removed to satisfy forum policy...
got my fastboot and adb set up and working, followed his instructions to get root, flashed the twrp image, and flashed the SuperSU file. Everything seemed to work properly. Made a complete backup using twerp and transferred it to my PC via USB.
After all this a tap on Reboot System was supposed to restart the phone. Didn't happen.
I'm stuck in a fastboot recovery loop. Whenever I power down and try to turn the phone on I come back to the fastboot screen. When I elect to go into "recovery" it opens the twrp screen on my phone which asks for my pin and then I have the twrp screen with the regular options.
This is new to me... I don't know if access to the twrp screen and its commands is a help or not, but I do realize that the adb and fastboot on my PC is necessary for about anything I need to do and it seems to be working. I believe that I've described my situation accurately...
Any help appreciated!
Click to expand...
Click to collapse
I asked for help before searching thoroughly enough! I figured out that I needed to download another ROM, transfer it into the phone's storage, and install using TWRP. I really didn't understand the capabilities of this fabulous application and had simply flashed it because the thread instructed me to.

Oneplus 3T will not boot into full recovery

I updated my oneplus and i got the TWRP decryption message, so i formatted it back to the stock format.
now all the phone does is boot into the bootloader but gets stuck on the boot screen of Blu Spark 3.1.1
my computer wont recognize it while its in the bootloader or while its stuck trying to boot in twrp
is there anything i can do or is my phone screwed at this point? i see a lot of threads that would answer parts of my issue but nothing that covers this as a whole. id rather ask for help now while there may be some hope.

nickhawkjones said:
my computer wont recognize it while its in the bootloader or while its stuck trying to boot in twrp
Click to expand...
Click to collapse
So no response to fastboot commands, while in bootloader-fastboot mode?

Are you sure you installed the right drivers for your pc? If all else fails, you can do this.
This is how I fixed my phone when i was stuck at a black screen. You can also try a different usb cord or port. Check device manager and see if it recognizes it when its plugged in. hope this helps!
https://www.youtube.com/watch?v=BvfA5WrVDQM

can you boot into fastboot? if your phone can boot to fastboot mode..just flash stock recovery image..then flash rom via adb shell (better flash the stock rom). if it works you can reinstall the custom recovery image or something. dont forget to erase everything via stock recovery..