Develop Bugs

[Q] Phone stuck on HTC screen and won't boot

Hi,
I rooted my phone about a year ago and recently wanted to update it and try a new ROM. Since I have no idea what the compatibility of of my old ROM I made a NAND backup then I reset it to the factory RUU version 3.29.651.5 and my phone was back to normal in the boot loader S was set as S-on.
I then proceeded to use the autoroot v2.5 in this thread: http://forum.xda-developers.com/showthread.php?t=838448. In the cmd prompt it said it was flashing the firmware, then said it was waiting for the device to boot up; however, the device did not boot up, I waited for approx 60 min and it was stuck on a black screen with the HTC logo in the middle and a small warning (triangle with exclamation point) in each corner. Now, it is permanently stuck on that screen. Even if I try to hold the volume down to get to the boot loader when it starts, it still goes to this screen.
What can I do to try to get out of this? I cant go back to my recovery to get my backup.
Thanks
Sorry if I incorrectly used some of the terms in this post.

alibabazhang said:
Hi,
I rooted my phone about a year ago and recently wanted to update it and try a new ROM. Since I have no idea what the compatibility of of my old ROM I made a NAND backup then I reset it to the factory RUU version 3.29.651.5 and my phone was back to normal in the boot loader S was set as S-on.
I then proceeded to use the autoroot v2.5 in this thread: http://forum.xda-developers.com/showthread.php?t=838448. In the cmd prompt it said it was flashing the firmware, then said it was waiting for the device to boot up; however, the device did not boot up, I waited for approx 60 min and it was stuck on a black screen with the HTC logo in the middle and a small warning (triangle with exclamation point) in each corner. Now, it is permanently stuck on that screen. Even if I try to hold the volume down to get to the boot loader when it starts, it still goes to this screen.
What can I do to try to get out of this? I cant go back to my recovery to get my backup.
Thanks
Sorry if I incorrectly used some of the terms in this post.
Click to expand...
Click to collapse
The first time I tried to Root my phone, I had the same problem with Toasts Root method. That's stock Recovery you're seeing.
I ended up having to use Unrevoked Linux version and swore I would never unroot again, and I haven't.

I've tried using unrevoked and several other methods. The problem is I think most of them rely on the phone being on with USB debugging enabled. I unfortunately can't get there. The one ray of hope I have is that the device is recognized in my device manager as "Android USB device - HTC bootloader". Is there any other way I could fix this?

alibabazhang said:
Hi,
I rooted my phone about a year ago and recently wanted to update it and try a new ROM. Since I have no idea what the compatibility of of my old ROM I made a NAND backup then I reset it to the factory RUU version 3.29.651.5 and my phone was back to normal in the boot loader S was set as S-on.
I then proceeded to use the autoroot v2.5 in this thread: http://forum.xda-developers.com/showthread.php?t=838448. In the cmd prompt it said it was flashing the firmware, then said it was waiting for the device to boot up; however, the device did not boot up, I waited for approx 60 min and it was stuck on a black screen with the HTC logo in the middle and a small warning (triangle with exclamation point) in each corner. Now, it is permanently stuck on that screen. Even if I try to hold the volume down to get to the boot loader when it starts, it still goes to this screen.
What can I do to try to get out of this? I cant go back to my recovery to get my backup.
Thanks
Sorry if I incorrectly used some of the terms in this post.
Click to expand...
Click to collapse
Are you holding power and volume down at the same time. Sounds like you are just holding volume. When you get to the bootloader I'd you see s-off all you will need to do is flash a PC36IMG of the recovery of your choice(I recommend twrp). Good luck!
Sent from my PC36100 using XDA Premium App

Also, no need to unroot for any rom. Once you are rooted you can flash anything you want. Compatibility wise, you may need to update a radio but that is just flashed in recovery.
Sent from my PC36100 using XDA Premium App

Thanks for the reply. Unfortunately I am holding power and volume down. Powering it on normally and powering it on while holding volume down both go to the same screen.

[Q] Stuck in recovery, can someone please help?

Hi all,
Yesterday I unlocked the boot loader on my htc one x, it worked perfectly first time and I had no problems booting back up. I then tried to follow the instructions to rom the CM11 KitKat 4.4.4 onto the device.
Problem is I have now somehow gotten stuck in recovery, I can get back to the boot loader screen, but then never passed the recovery screen, when I installed the rom.zip file on the device it failed to install correctly. I fear I have now cleared all the rom info on the device and I am in a state of eternal recovery.
I am also working on a Mac, I know it's an android sin, but it's my wife's pc. If I plug the sub cable into the device the Mac doesn't pick it up, although the boot loader changes to fast boot use when plugged in.
Can someone please help me, I am new to this and very frustrated. I just want to get the device back to standard or just back to those screen.
Much appreciated.

Android Newbie CT said:
Hi all,
Yesterday I unlocked the boot loader on my htc one x, it worked perfectly first time and I had no problems booting back up. I then tried to follow the instructions to rom the CM11 KitKat 4.4.4 onto the device.
Problem is I have now somehow gotten stuck in recovery, I can get back to the boot loader screen, but then never passed the recovery screen, when I installed the rom.zip file on the device it failed to install correctly. I fear I have now cleared all the rom info on the device and I am in a state of eternal recovery.
I am also working on a Mac, I know it's an android sin, but it's my wife's pc. If I plug the sub cable into the device the Mac doesn't pick it up, although the boot loader changes to fast boot use when plugged in.
Can someone please help me, I am new to this and very frustrated. I just want to get the device back to standard or just back to those screen.
Much appreciated.
Click to expand...
Click to collapse
Install latest Philz recovery or TWRP or CMW

Help please: recovery.img specifically for HTC Desire 820 Lollipop required.

Hi All,
Long time reader, first time poster
Short story: I just need a straight link to a recovery.img file specific to my device which is a HTC Desire 820.
Long story:
- Upgraded my phone to Lollipop.
- Unlocked my HTC phone.
- Followed a guide on the net regarding flashing TWRP recovery image and rooting (did not realise I was unknowingly flashing a previous / incompatible version on my phone).
- Now stuck with a phone that can't boot to recovery or factory reset (because it then tries to boot to recovery when doing this).
- I can get into the boot loader screen and fastboot, but selecting HBOOT and then RECOVERY makes my phone vibrate a little and flashes a message, but then goes back to the boot loader screen.
- I tried to flash another recovery.img file, but this just made it so that the HTC logo is displayed and doesn't get passed that.
- Now I just want to flash the lollipop recovery.img so that I at least can root the phone and not necessarily install TWRP.
Any ideas?
Thank you in advance.

So... no ideas?
lol *bump*

Post your device model, i.e. 820n...820u...

tomal said:
Post your device model, i.e. 820n...820u...
Click to expand...
Click to collapse
Thanks for responding and providing guidance @tomal.
The model of my phone is: HTC DESIRE 820 Model Number: OPFJ50.
Thank you in advance.

Power of your device and connect the device to the charger when it is in power off after connected you quickly press vol up+power button or vol down+power button then you find a charging logo then release the buttons after tha the phone goes off automatically then you quickly press vol down button only it gets the bootloader then you flash the only lolliop stock official recovery.img because twrp of 64 bit having some bugs.but they fix it you wait for some time.

keep on pressing the power button for a minute and then restart into the os .
still searching for the recovery.img compatible with htc desire 820.
please if you get let me know at [email protected] .

Flash stock official recovery....it having no bugs while booting,restarting,formatting the phone. but it can't handle the ota updates. You have also wait for some more time they will updated best recovery or stock ruu or how to s off.

Hi, I don’t know who or were to ask, my HTC Desire 820 was working fine, no problem at all. I got a voice chat and while listening there was a loud noise and the device shut off. After a few seconds it booted back up and didn’t load android, it was on a constant bootloop. I couldn’t turn it off or anything. After a while it shut itself down. Assuming the battery was low I connected it but to my surprise it wasn’t charging, the orange LED was blinking. I leave it plugged in for more than one hour but the situation continued, the phone was not powering on and the led was flashing. At that point what I did was to remove the back cover and reset the battery which make it begin to charge normal. After 30 min I tried turning it back on but the boot loop was still there. I could manage to enter fastboot and perform a factory reset. After it finished the device was booting back up and at a certain point the bootloop start over. The device was not rooted, bootloader locked, everything stock, since I didn’t want to mess with it because it is my only phone at this moment. I think on unlocking bootloader, and rooting to try install a custom rom or a backup save from someone. I have been able to unlock bootloader but TWRP doesn’t load, the device will not go into custom recovery and I have tried several versions. Now I don’t have the stock recovery anymore. I can go into bootloader, but nothing else.
I have to mention that now I have more than 24H dealing with this with no luck or signs of fixing my phone. Please, please any one that can help I will be very grateful.
My phone info is the following
HTC Desire 820 dual sim.
A51_DTUL PVT SHIP S-ON
HBOOT-3.19.0.0000
OS-2.10.709.2
SEP 25 2015

SO in this way you have to s off the htc desire 820 and flash the ruu means os zip file in bootloader or type the command fastboot rebootruu in fastboot mode then flash the ruu with fastboot files with the help of computer.

[email protected] said:
SO in this way you have to s off the htc desire 820 and flash the ruu means os zip file in bootloader or type the command fastboot rebootruu in fastboot mode then flash the ruu with fastboot files with the help of computer.
Click to expand...
Click to collapse
But as far as I have read there is no way to S-OFF the Desire 820 so far. And I havent been able to find any RUU on the web

It is there to s off but you have to pay some money with the help of sunshine

[email protected] said:
It is there to s off but you have to pay some money with the help of sunshine
Click to expand...
Click to collapse
I have used it before with another device I had. and to be honest I will be glad to use it again. the big problem here is that the phone is not booting, so I cannot install sunshine to gain S-OFF.
If there is any other way to get it done or something to allow me boot to the OS it will be great

The only solution for this is wait for a few days.because the htc desire 820 is the first model to get android 64bit.so the developers are not able to develop thirdparty code for it.if the device is locked go to the service center and give the phone they are all having the more stock roms to flash it.

Is my M8 bricked?

Hi XDA-Fellows
1) thanks for all the help of this community so far
2) my problem: I had my HTC One M8 rooted, installed TWRP (I think in the end I had 2.7.8.0 as last version) and Cyanogenmod with a nightly build of around 18. March 2016 installed! THEN the big mistake happened. In advanced developers menu of cyanogenmod I activated the option that was called something like "on update of system also replace recovery software". That obviously was stupid.
Upon rebooting normally TWRP launched and installed the latest nightly. This time I see the white screen with HTC logo on it, red text in bottom, top part of the screen shows "ENTERING RECOVERY", 3 seconds later I see a black screen and every like 2 or 3 seconds it looks like the screen gets powered, it flashes darkgrey shortly (again, looks like it gets powered but instantly shuts off immediately).
This just can be stopped by pressing either P+U or P+D for like 10 seconds. Then again, white screen with HTC logo and ENTERING RECOVERY and the screen switch on/off-loop.
Is my device bricked? What can I do now?
Any help is appreciated.

Hi,
Can you enter to your bootloader ? So maybe you can just reflash it to see if it's going to work..

BelDev said:
Hi,
Can you enter to your bootloader ? So maybe you can just reflash it to see if it's going to work..
Click to expand...
Click to collapse
Yes I can enter bootloader. How should I go on from here on?

Well you just need to download the new TWRP from their web site https://dl.twrp.me/m8/ after that you put your device into bootloader and you plug your phone into your computer and download a toolkit from xda like htc one m8 toolkit and you follow the instructions..

BelDev said:
Well you just need to download the new TWRP from their web site https://dl.twrp.me/m8/ after that you put your device into bootloader and you plug your phone into your computer and download a toolkit from xda like htc one m8 toolkit and you follow the instructions..
Click to expand...
Click to collapse
Thanks. I will give it a try and give feedback.

It worked. I could enter bootloader, switched to FASTBOOT mode, installed ADB Drivers for windows and replaced recovery with latest TWRP! THanks a lot for your help! I thought I could throw away my M8

Well. It worked not completely. I was able to reboot my phone into the Cyanogenmod. But upon entering recovery mode (which I expected now to be TWRP) I get the same result again ... Screen off/on within seconds, repeating endlessly

I think you need to reflash the boot.img and the ROM completely. Because i don't know why do you have a black screen.

I activated root access for apps and tried ROM Manager first! It failed, then I used flashify which worked. Automatically downloaded latest TWRP (3.0.0.1) and flashed it, reboot into recovery. Everything works like a charm again! Thanks again for your help!

Can't boot into recovery with TWRP

EDIT: I FIXED IT. I had to go back to an older version of TWRP[2.7xx] for it to work on my older firmware.
HTC One M8 AT&T running 4.4.2, unable to update because I haven't been on AT&T for quite a long time.
Yesterday I unlocked the bootloader on my M8 for the first time and attempted to install TWRP[EDIT: ver 3.0.2] so that I could root my phone. I have the proper SDK and ADB drivers installed, fastboot is working just fine. I used the following commands:
adb reboot bootloader
fastboot erase cache
fastboot flash recovery twrp.img
From there I have tried both rebooting into fastboot[which is what the TWRP website says to do] and also going back into bootloader and booting into recovery without restarting the phone. Neither option has worked. When booting straight into recovery after flashing the recovery, my phone just says "loading recovery" in pink letters with the HTC logo on the screen and stays like that. HOWEVER, I've somehow managed to get screenshots while force restarting my phone during that, and it shows the right TWRP screen, I just can't see it. Any advice at all would be appreciated. I did search through other forum posts but I could not find my problem of the screen I cannot see.