Develop Bugs

Bootloop, Can't get past warning screen in download mode

Hey Guys
So my friend gave me a Note 2 with 4.1.1 that's stuck in safe mode.
So i tried installing TWRP to install a KitKat rom, but i forgot to format data "stupid me :\"
anyways at first it booted till the part where it's "optimizing apps"
after it got to "finishing boot" it rebooted and, well, it's stuck in a bootloop.
so i tried getting into recovery by pressing the 3 buttons, it just continues with booting into the bootloop.
then i tried getting in download mode, it gets to the warning screen, but it refuses to continue when i press the volume up button :|
any help?? thank you

taha_elfeituri said:
Hey Guys
So my friend gave me a Note 2 with 4.1.1 that's stuck in safe mode.
So i tried installing TWRP to install a KitKat rom, but i forgot to format data "stupid me :\"
anyways at first it booted till the part where it's "optimizing apps"
after it got to "finishing boot" it rebooted and, well, it's stuck in a bootloop.
so i tried getting into recovery by pressing the 3 buttons, it just continues with booting into the bootloop.
then i tried getting in download mode, it gets to the warning screen, but it refuses to continue when i press the volume up button :|
any help?? thank you
Click to expand...
Click to collapse
perhaps try to reboot you phone by long press power button...

if you could get the phone to be recognized by adb then you could use:
adb reboot download​
to get to download mode.
Just a reminder:
TWRP :Vol Up + Home + Power (Release Power Button when samsung logo appears, keep holidn Vol Up + Home untill you see TWRP )
Download Mode: Vol Down + Home + Power, then press up when warning appears.
Hope this helps.

dabenaute said:
perhaps try to reboot you phone by long press power button...
Click to expand...
Click to collapse
tried that, with no success
bobfbaby said:
if you could get the phone to be recognized by adb then you could use:
adb reboot download​
to get to download mode.
Just a reminder:
TWRP :Vol Up + Home + Power (Release Power Button when samsung logo appears, keep holidn Vol Up + Home untill you see TWRP )
Download Mode: Vol Down + Home + Power, then press up when warning appears.
Hope this helps.
Click to expand...
Click to collapse
that was how i used to get the phone in download/recovery back when it was in safe mode.
but now, adb can recognize the phone, but it's "unauthorized" and stuck in a bootloop so i'm screwed :\
Anyways i think i should just take it to a repair shop but thanks so much for ur help guys ^^

[Q] Can't get into recovery

I tried to flash a ROM and when it tried to reboot it was stuck at the logo screen. Before I flashed the ROM I did a backup with TWRP. Now I can't get into recovery mode but I can get into download mode. What or how can I fix this problem via Odin ?
This is a T800
USA area
Thanks in advance

Your need to boot into Download mode by simultaneously pressing and holding Power + Vol down + Home. After the tab has booted into Download mode, press Vol down for cancelling the download mode. Then you must be quick: before the boot screen appears, you need to press and hold Power + Vol up + Home to boot into recovery mide.
Best, maris

maris__ said:
Your need to boot into Download mode by simultaneously pressing and holding Power + Vol down + Home. After the tab has booted into Download mode, press Vol down for cancelling the download mode. Then you must be quick: before the boot screen appears, you need to press and hold Power + Vol up + Home to boot into recovery mide.
Best, maris
Click to expand...
Click to collapse
Still not able to get into recovery mode, I even reinstalled TWRP via ODIN

jjmstang said:
Still not able to get into recovery mode, I even reinstalled TWRP via ODIN
Click to expand...
Click to collapse
If you search Q&A Help and Troubleshooting this problem has been covered many times.

The problem is purely user error and timing.
From power off simply press POWER + VOL UP + HOME. Hold until recovery boots.
If you are stuck at boot screen then hold POWER + VOL DOWN + POWER. As soon as the screen goes blank change to volume up whilst still holding the other buttons.
Guaranteed to get you into recovery mode.

A50 stuck in bootloop, can't go into recovery or anything else... need help

So I wanted to root my device, and i did the steps till i flashed twrp(unofficial one for a50), i was at this point: To get out of Download mode and Enter TWRP Recovery mode: Press and hold Volume Down + Power key, when screen blanks release Volume down only and quickly press Volume Up key. As the screen blanked out i also accidentaly let go of the power button... bootloop since... I can't do anything, can't use recovery, can't use download mode, cant connect to it with my pc using a cable. so either i wait till the battery dies or i find another solution...

1. Unplug USB cable from phone.
2. Hold down power button till it shuts off
3. When it's off, hold vol up + vol down & Press power
4. It should boot to download mode.
5. Load stock rom for your model (Check the variant to make sure)
6. All is back to normal again.

demunted said:
1. Unplug USB cable from phone.
2. Hold down power button till it shuts off
3. When it's off, hold vol up + vol down & Press power
4. It should boot to download mode.
5. Load stock rom for your model (Check the variant to make sure)
6. All is back to normal again.
Click to expand...
Click to collapse
I waited till phone died, then realised i could get it into download mode. busy downloading stock rom now. thanks anyway though, confirms my solution!

S9 does not enter download mode and recovery mode

I installed SuperiorOS R41 rom for my s9 phone. The phone is stuck in the bootloader. It does not go into recovery mode and download mode. If anyone knows a solution, I would be glad if it helps.

Are you sure you cannot get into Download Mode? Have you tried:
1. Turning off the device by pressing power + volume down for ten seconds.
2. Pressed down power + bixby + volume down all at the same time for a few seconds.
If this does not enter Download Mode, then get back to me.

ChasTechProjects said:
Are you sure you cannot get into Download Mode? Have you tried:
1. Turning off the device by pressing power + volume down for ten seconds.
2. Pressed down power + bixby + volume down all at the same time for a few seconds.
If this does not enter Download Mode, then get back to me.
Click to expand...
Click to collapse
I've tried all of them. unfortunately it does not go into download mode. It does not go into recovery mode.

does all the keys function properly?

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.