Stuck in bootloop i think, need some help. - Desire 820 Q&A, Help & Troubleshooting

I have a Desire 820, single SIM, and I unlocked bootloader, followed by installing TWRP. Next thing I know, phone won't boot at all, except if I use volUP + Power (standard recovery mode is volDown + Power). When it turns on, it just shows the HTC screen, and in the upper part it says "Entering Recovery..." for ~8seconds after which it just shuts down. Thank you for your help!

Kryeger said:
I have a Desire 820, single SIM, and I unlocked bootloader, followed by installing TWRP. Next thing I know, phone won't boot at all, except if I use volUP + Power (standard recovery mode is volDown + Power). When it turns on, it just shows the HTC screen, and in the upper part it says "Entering Recovery..." for ~8seconds after which it just shuts down. Thank you for your help!
Click to expand...
Click to collapse
Tighten the two volume buttons and the power button at the same time do not let go until it is loaded

Related

[Help] My phone is hard brick

so reason, i'm delete file build.prop. my phone is hard brick. i press power + volume up it turn on logo htc and off. i press power + volume down. nothing happen and when i charge baterry. no charge. help me
Kent21 said:
so reason, i'm delete file build.prop. my phone is hard brick. i press power + volume up it turn on logo htc and off. i press power + volume down. nothing happen and when i charge baterry. no charge. help me
Click to expand...
Click to collapse
1. Unplug phone - VERY important
2. power on phone, doesn't matter if it is boot looping or whatever
3. hold vol up and power EXACTLY 10 seconds
4. let go of both
5. hold vol down and power till boot loader comes up.
You have no charge because you are running an old ver of twrp, get 2.7.1.0
an0ther said:
1. Unplug phone - VERY important
2. power on phone, doesn't matter if it is boot looping or whatever
3. hold vol up and power EXACTLY 10 seconds
4. let go of both
5. hold vol down and power till boot loader comes up.
You have no charge because you are running an old ver of twrp, get 2.7.1.0
Click to expand...
Click to collapse
hold vol up and power EXACTLY 10 seconds
tks for your help. i'm press 30s. my phone is rescure
Share how I fixed my HTC M8 with the same problem.
Hi,
I just want to share how I fixed my HTC M8 with the same issue. The method is the same but a bit different. I found the solution from googling the below link:
http://forum.xda-developers.com/htc...ter-download-mode-t2853100/page2#post62490577
The essential method is to keep holding down the power button and don't let it go while pressing on the volume up button to reset. At the very moment before the phone resets and shows the HTC logo white screen, switch from pressing the volume up button to the volume down button while holding down the power button. Or you can count 10 seconds and switch before the screen resets.
I hope this helps other people with the same issue.
an0ther said:
1. Unplug phone - VERY important
2. power on phone, doesn't matter if it is boot looping or whatever
3. hold vol up and power EXACTLY 10 seconds
4. let go of both
5. hold vol down and power till boot loader comes up.
You have no charge because you are running an old ver of twrp, get 2.7.1.0
Click to expand...
Click to collapse
Thanks, the pwr + vol-up 10 seconds before the phone hard resets, them pwr + vol-down got me back into hboot and recovery and then out of a build.prop issue.
I have no idea why this is a thing: Getting into the boot loader is usually easy. I can't imagine why when the system doesn't boot normally that the standard procedure to enter hboot changes.
regardless of retarded engineering on qualcom or htc's part, thank you an0ther.

My HTC Desire 820 dual sim in start loop

Hi guys,
It started when I was charging my phone. It suddenly started restarting. It will be stuck in the HTC logo white screen and not proceeding further and again restarting.
I have seen many posts in this forum and tried downloading stock ram.
I have copied it in my memory card.
while restarting if I press volume down, it will go to Hboot menu. There it is showing software status OFFICIAL and LOCKED.
I tried selecting recovery mode, but instead of showing recovery menu it is again going to the looop.
I even tried doing a FACTORY RESET. But even it is going to the loop.
Please help me guys to get out of it.
1. Tighten the 2 buttons the volume + button on the 2. Connect the phone to your computer hold the volume + button 2 power button and when the black screen button to hold the volume- and the power button to enter bootloader mode

Htc stuck on white htc screen

hello friends i have a Problem my htc one m8 stuck on White htc Screen i dont can boot in the bootloader menu what i can do now ? My dvice is rooted , unlocked and it have the trwp installed. When i press power + vol-down Buttons nothing Comes and the vol-down key works.
greets marvin
power + vol down doesn't work if the phone is already on (even "stuck" on the boot splash screen). That button combo only works when powered off, or during a reboot.
Do the following:
1) Hold power + vol up to force a reboot. You may need to hold the buttons for a minute or so, in the current "stuck" condition.
2) When the screen goes black to reboot, but before the HTC logo screen appears (you have about 3 seconds) let go of the power and vol up buttons, and only hold the vol down button. Do not let go until you see the bootloader screen.
3) If you fail to get into bootloader, it's always due to getting the timing wrong. You either started pressing vol down too late, or let go too early. Just repeat Steps 1 and 2 above, until you get it right.

[solved] Stuck on boot loader warning screen

Hy,
I'm stuck on boot loader unlock warning (from google) screen after a restart.
It's written "press power key ti pause boot".
I tried to press and wait few minutes, several tile and nothing happen.
How can I get the phone boot ?
Hold down power button + vol up + vol down. Then let go of power button only once the device boots up. This should take you into fastboot. Fix the device. Reboot to OS.
:good:
Thank's a lot.
I have tried several combinaison but not the 3 button at the same time.

How to reliably start TWRP

I have TWRP installed, and have managed to run it a few times. Now I cannot start TWRP at all.
From off, if I switch on, the following happens:
1) Screen with Samsung Galaxy A70 - Secured by Knox
2) 0.5 seconds later another screen, "this phone's bootloader is unlocked and it software integrity. .." and "press power key to continue..."
3) 5 seconds later, same screen as (1)
4) 3 seconds later, red letters "this phone is not running Samsung's official software"
5) 3 seconds later blank screen with "samsung" and then booting to android.
In my experience I have to flash twrp every time I want to use it( I don't know the reason but I couldn't fix it ) , for booting twrp on the other hand I turn off the phone first, then I press power button+volume down until the "this phones bootloader..." screen appears, here is the tricky part, you have to quickly let go of these two buttons, press power button, let go of the power button (after the warning disappeared) and then press volume down button (and hold it) until twrp logo appears, this happens really fast so you may need to do it a few times to get used to it.
mobin22 said:
In my experience I have to flash twrp every time I want to use it( I don't know the reason but I couldn't fix it )
Click to expand...
Click to collapse
Yes, same here, the only time I have managed to run TWRP on this phone, is right after a flash.
mobin22 said:
and then press power down button
Click to expand...
Click to collapse
Do you mean volume down?
Zilliman said:
Yes, same here, the only time I have managed to run TWRP on this phone, is right after a flash.
Do you mean volume down?
Click to expand...
Click to collapse
Power off the device, plug into a pc, wait for it to start charge, hold vol up and power till it turns on. Wala boots to twrp. If you have magisk installed,you can use the reboot option within magisk.
mobin22 said:
In my experience I have to flash twrp every time I want to use it( I don't know the reason but I couldn't fix it ) , for booting twrp on the other hand I turn off the phone first, then I press power button+volume down until the "this phones bootloader..." screen appears, here is the tricky part, you have to quickly let go of these two buttons, press power button, let go of the power button (after the warning disappeared) and then press volume down button (and hold it) until twrp logo appears, this happens really fast so you may need to do it a few times to get used to it.
Click to expand...
Click to collapse
Samsung changed how to enter recovery on Android 11. Power off device, plug into pc, wait for it to charge, then hold vol up and power till it turns on. Alternatively, if you have magisk installed, use the reboot options within magisk.
I did that. Thanks!
But it has gone to:
Android Recovery
Samsung /a70qxx/a70q
11/RP1A.200720.012./A705FNXXUB5DVB3
user/release-keys
Use volume up/down and power.
Reboot system now
Reboot to bootloader
Apply update from ADB
Apply update from SD card
Wipe date/factory reset
...
...
...
Where is TWRP? It seems it's gone.
Zilliman said:
I did that. Thanks!
But it has gone to:
Android Recovery
Samsung /a70qxx/a70q
11/RP1A.200720.012./A705FNXXUB5DVB3
user/release-keys
Use volume up/down and power.
Reboot system now
Reboot to bootloader
Apply update from ADB
Apply update from SD card
Wipe date/factory reset
...
...
...
Where is TWRP? It seems it's gone.
Click to expand...
Click to collapse
That's because you're not installing it properly go back to my guide and follow it exactly and stop listening to these other people. I've been modding this device since it first came out with Android 9, I know every inch of this device. You're getting confused by what other people are telling you
MarvinMod said:
5- Press and hold vol down and power till the screen turns blank then immediately press and hold vol up. The device will reboot then land you in the twrp splash screen
Click to expand...
Click to collapse
It fails here, on this step. After successful flash of recovery.tar, power + vol down to reboot, cable still connected, nothing you can do now can bring TWRP up. The phone boots into Android.
EDIT: I think I have now got it. I will update in a few mins.
Zilliman said:
It fails here, on this step. After successful flash of recovery.tar, power + vol down to reboot, cable still connected, nothing you can do now can bring TWRP up. The phone boots into Android.
EDIT: I think I have now got it. I will update in a few mins.
Click to expand...
Click to collapse
After successful flash of recovery.tar, power and vol down to reboot, as soon as the phone screen goes blank, immediately release all keys and press and hold vol up. Must be as soon as screen goes blank. The device will then reboot twice and land you in twrp splash screen. You must hit vol down and power after successful flash then when screen blanks, vol up. If you miss this step, twrp will not hold and revert back to stock recovery.
Here is the notes I made today:
****************************************************************
INSTALL + START TWRP
phone is off
press up + dn
insert cable
go into download (press up)
ODIN 3.14 + AP:tar(vbmeta.img+twrp.img), auto reboot off, press upload
when it succeeds, press dn + pwr until it reboots
then quickly up + pwr until it starts (no need to hold down)
this starts in TWRP
from powered off
press pwr button
goes into twrp or android(system) -- depending on what was used last time
if we used reboot->system last time it will now **Always** go into system!
to go back into twrp:
switch off
power cable until charge
pwr + up until it starts
****************************************************************
The above means that you CANNOT go back to TWRP unless you have a cable and a PC near by.

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