Develop Bugs

Tried flashing Viper and now can't get to fastboot menu!

I tried flashing ViperOneM8 1.8.0 (ViperOneM8 1.7.1 -> 1.8.0) which I guess was the wrong thing (I think that was an update, should have started with 1.7.1 first). Anyway... Now my M8 boots to some type of android base OS without a lot of things...
1) It's not possible to get to settings as there is no settings app in the app drawer.
2) There is no title bar/task bar at the top. The area that holds the time, and a few icons at the top is gone.
3) There is no background.
4) There is no way to get on the WiFi do to #1 and because of this I can not add my google account. That in turn means no google play store access.
But the BIGGEST thing of all... I CAN NOT BOOT TO FASTBOOT!!!
- Power the device off.
- Hold the volume down button (also tried the volume up button) + press power usually boots strait to fastboot mode.
I THINK it has something to do with the fact that by default in the settings I need to untick the fastboot option in the dev options.. Well I can't get to settings. Now what?

arvo.bowen said:
I tried flashing ViperOneM8 1.8.0 (ViperOneM8 1.7.1 -> 1.8.0) which I guess was the wrong thing (I think that was an update, should have started with 1.7.1 first). Anyway... Now my M8 boots to some type of android base OS without a lot of things...
1) It's not possible to get to settings as there is no settings app in the app drawer.
2) There is no title bar/task bar at the top. The area that holds the time, and a few icons at the top is gone.
3) There is no background.
4) There is no way to get on the WiFi do to #1 and because of this I can not add my google account. That in turn means no google play store access.
But the BIGGEST thing of all... I CAN NOT BOOT TO FASTBOOT!!!
- Power the device off.
- Hold the volume down button (also tried the volume up button) + press power usually boots strait to fastboot mode.
I THINK it has something to do with the fact that by default in the settings I need to untick the fastboot option in the dev options.. Well I can't get to settings. Now what?
Click to expand...
Click to collapse
Shut down phone.
Turn it on
Hold volume up+power button until it restarts
As soon as you get the black screen for restart release power button and hold volume down.
If your timing is right you will enter bootloader.
I tried it and it definitely works
Flash your nandroid or any rom you know was ok to begin with and you are up and running!!!

stathis95194 said:
Shut down phone.
Turn it on
Hold volume up+power button until it restarts
As soon as you get the black screen for restart release power button and hold volume down.
If your timing is right you will enter bootloader.
I tried it and it definitely works
Flash your nandroid or any rom you know was ok to begin with and you are up and running!!!
Click to expand...
Click to collapse
Tried that...
1) Powered off device.
2) Held power button for about 2 seconds until it came on then let go.
3) IMMEDIATELY I pressed and held down the power and volume up buttons.
4) The phone continues to boot up a little bit longer and gets to the verizon check (verizon splash screen) then shortly after goes black (as expected).
5) IMMEDIATELY let go of power button continuing to hold volume up button.
... .. .. .
6) I get the white screen that says HTC (powered by android)... NOT a bootloader screen as expected.

Update... When I try to click on the app drawer then top right click the little three dots, I try and "Manage Apps" ... ERROR "App isn't installed"...
:/

arvo.bowen said:
Update... When I try to click on the app drawer then top right click the little three dots, I try and "Manage Apps" ... ERROR "App isn't installed"...
:/
Click to expand...
Click to collapse
If you connect the phone to the computer, can you get fastboot or adb to recognize the phone?
If so, you can try adb reboot bootloader command or fastboot reboot bootloader comand

arvo.bowen said:
Tried that...
1) Powered off device.
2) Held power button for about 2 seconds until it came on then let go.
3) IMMEDIATELY I pressed and held down the power and volume up buttons.
4) The phone continues to boot up a little bit longer and gets to the verizon check (verizon splash screen) then shortly after goes black (as expected).
5) IMMEDIATELY let go of power button continuing to hold volume up button.
... .. .. .
6) I get the white screen that says HTC (powered by android)... NOT a bootloader screen as expected.
Click to expand...
Click to collapse
After 4 you release power button and press volume DOWN.
This will get you to the bootloader

stathis95194 said:
After 4 you release power button and press volume DOWN.
This will get you to the bootloader
Click to expand...
Click to collapse
Yea, I ended up doing the following...
1) While device is powered on, Press and hold Volume Up + Power until device reboots.
2) When it starts to reboot continue holding the Power button and change to the Volume Down.
That worked for me.

HTC Desire 820n one sim restarts continuously - stuck in boot logo, loop, help me plz

I have been using my HTC Desire 820 for the past 2 years. It was updated to Marshmallow two months back.
All of a sudden my phone had a restart. Ever since, it turns on - gets stuck in the logo - restarts. This has been happening in a loop.
Totally stuck with the problem.
Thanks

I'm no expert but...
Have you tried plugging in the charger? Forcefully turning off the device (long press the power button until screen is totally off)?
Do you imply that the software is official (updated over OTA from the settings), or did you mess with the device? (install custom ROM/recovery etc.)
After turning it off, maybe try to turn it on by pressing both the power button and volume down, until it goes into HBOOT menu (example image https: //forums .androidcentral.com/attachments/htc-one-m8/144676d1414689464t-htc-one-tampered-locked-security-warning-imag2693.jpg - delete the spaces). From here, you may try to access the recovery (navigate with volume buttons), and after entering recovery hold down power and volume down buttons for about 5-10 seconds, release, and you should see a menu. You may try to clear the cache.
Alternatively, if you are willing to lose the data on your phone, you can do a factory reset from hboot.
Hope this helps.

maestrulwro said:
I'm no expert but...
Have you tried plugging in the charger? Forcefully turning off the device (long press the power button until screen is totally off)?
Do you imply that the software is official (updated over OTA from the settings), or did you mess with the device? (install custom ROM/recovery etc.)
After turning it off, maybe try to turn it on by pressing both the power button and volume down, until it goes into HBOOT menu (example image https: //forums .androidcentral.com/attachments/htc-one-m8/144676d1414689464t-htc-one-tampered-locked-security-warning-imag2693.jpg - delete the spaces). From here, you may try to access the recovery (navigate with volume buttons), and after entering recovery hold down power and volume down buttons for about 5-10 seconds, release, and you should see a menu. You may try to clear the cache.
Alternatively, if you are willing to lose the data on your phone, you can do a factory reset from hboot.
Hope this helps.
Click to expand...
Click to collapse
Thank you but it hasn't helped

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.

Question Samsung A22 stuck on home screen

Hello;
I have a Samsung A22 which restarted on its own, and it got stuck on the phone's start screen (see photo). It shows as system notification: "Phone restarted: Unlock your phone to receive app notifications." even if the phone is unlocked.
Thanks.

Try to boot into Recovery mode.
Restart your phone and hold Volume Up and Power button for some seconds, then release the Power Button when the screen shows the Samsung and Android logos, then few seconds later release the Volume Up button and it will boot into Recovery mode.
Navigate with volume buttons (Up and Down) and Power button for Select. Do Clear cache, select Yes for confirm (make sure it is not wipe data, or else it will erase your data), when the Cache is wiped, then select Repair apps, and automatically the phone will restart and will be optimizing the apps.
I hope this can fix your problem, In case it doesn't work, try Safe Mode to see if it's not a problem of a recently installed app.

ArmandoDrake said:
Try to boot into Recovery mode.
Restart your phone and hold Volume Up and Power button for some seconds, then release the Power Button when the screen shows the Samsung and Android logos, then few seconds later release the Volume Up button and it will boot into Recovery mode.
Navigate with volume buttons (Up and Down) and Power button for Select. Do Clear cache, select Yes for confirm (make sure it is not wipe data, or else it will erase your data), when the Cache is wiped, then select Repair apps, and automatically the phone will restart and will be optimizing the apps.
I hope this can fix your problem, In case it doesn't work, try Safe Mode to see if it's not a problem of a recently installed app.
Click to expand...
Click to collapse
Thanx for your reply.
it doesn't work, and the problem persists even in safe mode

Aux administrateurs de ce forum, merci de fermer cette discution

yasworld said:
За администраторе овог форума, молимо вас да затворите ову дискусију.
Click to expand...
Click to collapse
you find solution????

Soldrex said:
you find solution????
Click to expand...
Click to collapse
Non, J'ai réinstallé la rom stock

How To Guide Safe boot mode in ColorOS/OxygenOS 13

Here's how you can enable it:
Turn the device off.
Tap and hold the power button to start.
Once the logo appears, release the power button and hold the volume down button till the device finishes booting up.
Why is it needed? For instance you've messed up the launcher, or you have some nasty malware, or you want to benchmark the phone knowing that nothing heavy is running in background.

The save mode is when you have any magisk modul installed what makes problem than after you have bootet in save mode and reboot to normal mode all magisk modul since disabled and you can uninstall the modul what have maked probs
And in save mode all apps what you have installed now hiden
birdie said:
Here's how you can enable it:
Turn the device off.
Tap and hold the power button to start.
Once the logo appears, release the power button and hold the volume down button till the device finishes booting up.
Why is it needed? For instance you've messed up the launcher, or you have some nasty malware, or you want to benchmark the phone knowing that nothing heavy is running in background.
Click to expand...
Click to collapse

birdie said:
Here's how you can enable it:
Turn the device off.
Tap and hold the power button to start.
Once the logo appears, release the power button and hold the volume down button till the device finishes booting up.
Click to expand...
Click to collapse
While I don't own this device, but in earlier OnePlus [or any Android for that matter], we could just long-press the Restart option to bring up the Safe Mode prompt. Has this been removed from OnPlus 11?