Hello i tried to flash twrp recovery on my htc 820u but i think it didn't install. Phone was still working correctly until i tried to do a factory reset. Now it will just boot into recovery every time and i have only a black screen. the phone vibrates when i touch the screen but i cannot switch it off. when i reboot it just goes back to recovery.
Can anyone suggest something please? Is there a way to prevent the phone from booting into recovery?
PS: I'm on lollipop 5.0
Vivacity said:
Hello i tried to flash twrp recovery on my htc 820u but i think it didn't install. Phone was still working correctly until i tried to do a factory reset. Now it will just boot into recovery every time and i have only a black screen. the phone vibrates when i touch the screen but i cannot switch it off. when i reboot it just goes back to recovery.
Can anyone suggest something please? Is there a way to prevent the phone from booting into recovery?
PS: I'm on lollipop 5.0
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Click to collapse
You must not duplicate the post in different forum for the same topic.
Anyway, do it as follow:
1. Connect your device to the PC once it is booted into twrp recovery
2. Copy your Lollipop recovery to the device over adb: adb push recovery.img /external_sd/recovery.img
3. Run: adb shell
4. Run in shell: dd if=/external_sd/recovery.img of=/dev/block/mmcblk0p44
5. Run in shell: reboot
If the device reboots into stock recovery, press and hold vol up + vol down + power until the display goes black. Release the vol up button immediately (while still holding other buttons). Device will reboot into fastboot. Select reboot from the menu.
Hope you are back to business.
tomal said:
You must not duplicate the post in different forum for the same topic.
Anyway, do it as follow:
1. Connect your device to the PC once it is booted into twrp recovery
2. Copy your Lollipop recovery to the device over adb: adb push recovery.img /external_sd/recovery.img
3. Run: adb shell
4. Run in shell: dd if=/external_sd/recovery.img of=/dev/block/mmcblk0p44
5. Run in shell: reboot
If the device reboots into stock recovery, press and hold vol up + vol down + power until the display goes black. Release the vol up button immediately (while still holding other buttons). Device will reboot into fastboot. Select reboot from the menu.
Hope you are back to business.
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Click to collapse
thank you so much. that is much appreciated. hope if anyone else encounters this type of problem this will be able to help them.
tomal said:
You must not duplicate the post in different forum for the same topic.
Anyway, do it as follow:
1. Connect your device to the PC once it is booted into twrp recovery
2. Copy your Lollipop recovery to the device over adb: adb push recovery.img /external_sd/recovery.img
3. Run: adb shell
4. Run in shell: dd if=/external_sd/recovery.img of=/dev/block/mmcblk0p44
5. Run in shell: reboot
If the device reboots into stock recovery, press and hold vol up + vol down + power until the display goes black. Release the vol up button immediately (while still holding other buttons). Device will reboot into fastboot. Select reboot from the menu.
Hope you are back to business.
Click to expand...
Click to collapse
By any chance would you happen to know why the twrp shows black screen? it is still functionnal, would it be because of incompatibility with lollipop? and any way to fix it?
PS: it worked fine on kitkat.
Vivacity said:
By any chance would you happen to know why the twrp shows black screen? it is still functionnal, would it be because of incompatibility with lollipop? and any way to fix it?
PS: it worked fine on kitkat.
Click to expand...
Click to collapse
It goes in sleeping mode, you can disable this in settings=> screen=> enable/disable screen timeout (all in twrp)
---------- Post added at 03:22 PM ---------- Previous post was at 03:09 PM ----------
tomal said:
You must not duplicate the post in different forum for the same topic.
Anyway, do it as follow:
1. Connect your device to the PC once it is booted into twrp recovery
2. Copy your Lollipop recovery to the device over adb: adb push recovery.img /external_sd/recovery.img
3. Run: adb shell
4. Run in shell: dd if=/external_sd/recovery.img of=/dev/block/mmcblk0p44
5. Run in shell: reboot
If the device reboots into stock recovery, press and hold vol up + vol down + power until the display goes black. Release the vol up button immediately (while still holding other buttons). Device will reboot into fastboot. Select reboot from the menu.
Hope you are back to business.
Click to expand...
Click to collapse
What can I do when (for step 2) I do not have a recovery? Can I use one not coming from this Phone?
I did encounter the same "reboot to recovery bug" but I got it from updating the SU Binary.
Hope you can help me.
Hi guys, same problem here, with twrp apparently functioning but nothing displays on screen. Also, impossible to boot the device properly.
Tried the whole adb procedure mentioned above, did nothing as far as I can tell. Trying to reboot from fastboot leads to the HTC green boot logo, but no further... What should I try now ? Is it possible to inject a stock rom from HTC and where can I get it ?
Thanks in advance for your help.
thank you this helped me too
moonwise said:
Hi guys, same problem here, with twrp apparently functioning but nothing displays on screen. Also, impossible to boot the device properly.
Tried the whole adb procedure mentioned above, did nothing as far as I can tell. Trying to reboot from fastboot leads to the HTC green boot logo, but no further... What should I try now ? Is it possible to inject a stock rom from HTC and where can I get it ?
Thanks in advance for your help.
Click to expand...
Click to collapse
Same here! Please help!
Related
What buttons do I need to press to get this phone into recovery mode. Absolutely nothing comes up when I try to google it or search for this phone it's driving me nuts. I've got it into download mode no problem but recovery I can't find a process on.
I know there are multiple threads that tell you how, but after you flash CMW and are turning your phone on you want to hold down the power button, volume up, and the home button. When the Samsung logo comes up, let go of the power button but hold down the others. That will take you into recovery.
adb reboot recovery
yyhd said:
adb reboot recovery
Click to expand...
Click to collapse
Is this in a terminal on a computer or in terminal emulator? On the phone I've been using:
su
reboot recovery
binglejellsx2 said:
Is this in a terminal on a computer or in terminal emulator? On the phone I've been using:
su
reboot recovery
Click to expand...
Click to collapse
That's using adb on a computer attached to your phone. adb is part of the Android SDK.
Thanks. I'm not big on the command-line stuff. I just copy/paste the lines when instructed to do so.
If you're rooted, you can also use an app like Quick Boot.
All im getting is the TWRP menu, even after holding the vol down & power. Wont get to the rck screen. Any ideas?
spooky71 said:
All im getting is the TWRP menu, even after holding the vol down & power. Wont get to the rck screen. Any ideas?
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Click to collapse
What happened?
This is a common result if you flash a non-4.2 twrp on a 4.2 bootloader, which will cause a fastboot flash brick.
You will need adb drivers installed on pc, then while in recovery connect your tab to pc, open a command prompt and cd to you android-sdk/platform-tools folder and type
Code:
adb devices
if adb is setup correctly you will get a response with your devices s/n. If this is ok then type
Code:
adb reboot-bootloader
which will reboot your tab to the bootloader screen.
The problem is that whenever I boot up, all i get is the TWRP menu, not letting the pc see the pad. On device manager I get Transformer under other devices. Ive downloaded the drivers, but its not installing them. When I run adb reboot-bootloader, I get device not found.
Have a look here, scroll down and follow on from the where you see the device manager image - this worked for me to get adb working from recovery.
So did this happen after you flashed twrp 2.4.4.0-4.2? or did you flash another twrp or cwm?
Heading out now for a few hours but will be back later
pjc21 said:
Have a look here, scroll down and follow on from the where you see the device manager image - this worked for me to get adb working from recovery.
So did this happen after you flashed twrp 2.4.4.0-4.2? or did you flash another twrp or cwm?
Heading out now for a few hours but will be back later
Click to expand...
Click to collapse
Still nothing. Whats killing me is that it cant detect different sd cards.
So I got my phone stuck at the Google logo, but since my volume down button is busted due to a fall I can't get into bootloader or recovery using the traditional method of power +vol down. It there any known workaround for this dilemma?
Code:
su
reboot bootloader
...from any terminal emulator with root access.
If you're not rooted, not sure you can even do this via adb from a computer?
Code:
adb shell
reboot bootloader
Thanks for the tips, however, since the phone is stuck at the boot logo the adb command or fastboot don't work unfortunately
You may need to fix the button then. Otherwise you may be out of luck in your situation.
My power button is broken, help me. I flash the wrong kernel and stuck at black screen.
I want to enter recovery mode(TWRM). How to do that? any method using adb etc? Thank you.
EDIT: Nevermind, Igot it by using command: adb reboot recovery
The issue: When booting I get the "bad key" boot text which hangs for about 10 seconds before going to splash.
When doing power button + volume up, the bad key hangs for so long that holding down power button just SHUTS THE PHONE OFF.
I can do power button + volume down to enter bootloader, and then enter recovery mode from there, but when I do that I get NO COMMAND
Ive also tried with adb
adb reboot recovery
same thing NO COMMAND
Everything that I google about NO COMMAND comes back with "oh just do power button + volume up duh" and each time I read that as a solution it makes me a little bit more angry.
https://forum.xda-developers.com/moto-e6/how-to/rooting-e6-surfna-t3965659
Ive been following this guide to root my moto e6 and everything has been fine so far, but im stuck trying to install magisk. Magisk manager has already been installed, and I believe I have installed magisk. But I cannot boot into proper recovery to use it.
About to give up, hopefully someone can help
installed a bootlogo following this guide
https://forum.xda-developers.com/moto-e5/how-to/boot-logo-moto-e5-stock-bad-key-removed-t3869259
to see if that would help. No change. Cant boot into recovery mode proper.
alexsherman4 said:
The issue: When booting I get the "bad key" boot text which hangs for about 10 seconds before going to splash.
When doing power button + volume up, the bad key hangs for so long that holding down power button just SHUTS THE PHONE OFF.
I can do power button + volume down to enter bootloader, and then enter recovery mode from there, but when I do that I get NO COMMAND
Ive also tried with adb
adb reboot recovery
same thing NO COMMAND
Everything that I google about NO COMMAND comes back with "oh just do power button + volume up duh" and each time I read that as a solution it makes me a little bit more angry.
https://forum.xda-developers.com/moto-e6/how-to/rooting-e6-surfna-t3965659
Ive been following this guide to root my moto e6 and everything has been fine so far, but im stuck trying to install magisk. Magisk manager has already been installed, and I believe I have installed magisk. But I cannot boot into proper recovery to use it.
About to give up, hopefully someone can help
Click to expand...
Click to collapse
bad key and/or N/A is just the phone saying it has an unlocked bootloader.
NO COMMAND when entering Recovery, yes, google is right. When you see NO COMMAND, press and HOLD the power button and TAP the volume up key. You should see at the top, Android Recovery and a bunch of options below. If you don't see this, your recovery partition was probably modified/corrupt. Flash the original recovery.img from a stock rom. I don't think there's a working E6 TWRP recovery image yet.
If you still haven't figured this out I have a possible fix. I found that upon first installing the magisk_patched.img from the guide you linked, everything booted up fine and magisk and root were working. I however made the mistake of booting normally...somehow this affects the magisk boot function in the recovery and gives the no command screen. I just fastboot flash recovery magisk_patched.img again and booted straight into recovery and that fixed it again. Just make sure once you have root again to use a program that allows you to boot back into recovery again directly.
fcohen said:
bad key and/or N/A is just the phone saying it has an unlocked bootloader.
NO COMMAND when entering Recovery, yes, google is right. When you see NO COMMAND, press and HOLD the power button and TAP the volume up key. You should see at the top, Android Recovery and a bunch of options below. If you don't see this, your recovery partition was probably modified/corrupt. Flash the original recovery.img from a stock rom. I don't think there's a working E6 TWRP recovery image yet.
Click to expand...
Click to collapse
When I get to the Android Recovery which option do I choose?
I tried "Reboot system now" and Magisk was still not installed
chami_bc said:
When I get to the Android Recovery which option do I choose?
I tried "Reboot system now" and Magisk was still not installed
Click to expand...
Click to collapse
You are not going to install magisk in stock recovery
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