Can't get into Bootloader (Download) mode - Galaxy Tab 8.9 General

I tried following nirogu325's One-Stop Guide and I'm getting stuck on getting my wife tablet into Bootloader mode.
I've tried Power Off, Hold Vol - and Power, but nothing happens (and I mean I've held the two buttons for 75 seconds).
I've tried pressing Vol - and Power and then letting go, and nothing happens.
I've tried using ADB reboot bootloader and ADB reboot download and the tablet will at least power off, but it never reboots.
Am I missing something simple?

This works on the Samsung SGH-I957 8.9 Tablet: Press and hold these buttons: Volume Up + Power button

Related

[Q] No Download Mode

I have an i9000 international, and I recently (attempted) to flash Darky's Rom 10 RC6, after flashing it in Odin, my phone started booting. All is fine until after 'S' logo screen. I've tried to get it into download mode frantically, but nothing is working. The 3 button press, not working. I've tried other methods, like removing the battery and plugging it into your computer, then volume buttons, but nothing...
Please help
Are you holding the Vol down + Home + Power buttons together long enough ?
Yeah, I've tried holding them down until the splash screen goes away. Just regularly boots, and then stop holding down power button when the splash screen is up. No luck. I think I might have to just jig it.
It can be tricky, in mine you first have to press home, then on+down, but in order that on goes before down...all other combinations at least in my I9000 won't work, and if it fails, remove the battery put back and try again.
SamBroomby said:
Yeah, I've tried holding them down until the splash screen goes away. Just regularly boots, and then stop holding down power button when the splash screen is up. No luck. I think I might have to just jig it.
Click to expand...
Click to collapse
You shouldn't even be seeing the splash screen.
What works for me everytime, is doing it in this order:
Press & hold down the vol-down button & home button, then (while still holding down those 2 buttons), press & hold the power button. You should be in Download mode in like 1 to 2 second. When you see the Download mode, let go of all 3 buttons.

Key combination for when things go bad

Press menu + vol down + power.
Hold down all three buttons until the tablet reboots and the screen momentarily goes off, then after about one second the Samsung and Android logos appear in white.
Now we are at the point where the tablet screen has just gone dark. You have less than one second to:
1) If you release the power button now, the tablet simply reboots.
2) If you keep holding the buttons the tablet enters Download mode.
3) If you very quickly, VERY quickly, press VOL UP, while still holding down the power + menu, the tablet enters the recovery.
I have not found a way to switch it off other than entering recovery and then selecting reboot/power off.
Hard reset only is actually just hold POWER + VOL DOWN

Wont go into recovery or download mode? Password swipe forgotten

Hi there i have a HTC One Mini 2 and i have forgotten the swipe password (as in the pattern).
So i turn phone off and hold power and vol down continuously and all it does is boot up (really fast).
I tried power and vol up for download mode and that doesnt work either.
So downloaded ADB, running that through command prompt (admin) and it says that my device is unauthorised.
So.....i am assuming that the usb debugging is disabled on the device. As far as i know its not been rooted.
The volume up and down work fine so its not them that dont work.
So my question is, is there any way to completely wipe the device? If so can it be rooted and it work that way?
For the record, when i connect the phone to Laptop it shows up, i have downloaded the google usb drivers, also the latest htc drivers. I turned off Anti virus and Firewall too.
Thanks in advance.
Try this: When android is up and running, press and hold VOL UP + POWER untill you see message about phone rebooting in xx seconds. Just as the screen goes black, let go of both buttons and immediately hold POWER + VOL DOWN. It should reboot into Bootloader without any delay or vibration.
asestar said:
Try this: When android is up and running, press and hold VOL UP + POWER untill you see message about phone rebooting in xx seconds. Just as the screen goes black, let go of both buttons and immediately hold POWER + VOL DOWN. It should reboot into Bootloader without any delay or vibration.
Click to expand...
Click to collapse
Thanks mate ill give that a try and get back to you later :good:
asestar said:
Try this: When android is up and running, press and hold VOL UP + POWER untill you see message about phone rebooting in xx seconds. Just as the screen goes black, let go of both buttons and immediately hold POWER + VOL DOWN. It should reboot into Bootloader without any delay or vibration.
Click to expand...
Click to collapse
LIFE SAVER. Worked perfect thanks
Glad I helped!

Note 5 volume button broke stuck in safemode.

Hi my volume button down is broken and everytime it boots it's in safemode.
Whenever trying to access recovery it normally boots up when buttons are pressed.
Booting into download mode freezes it, I have to do a hard reboot by pressing all the buttons.
Volume/power button work fine when in use.
I've opened up my phone to disconnect my volume button it stills boots up in safemode.
I've tried 2 new roms still in safemode.
Hello brother,
Even you flash 2 new roms still booting up safe mode, bad seen
i feel your volume down button was keep pressed maybe,,,,,maybe (it should be b coz of dust or something else).
to be confirm is that your volume button broken or pressed follow the steps below
1. switch on your mobile release the power key and Press again the power key and wait till finish the boot, (if the device get restarted it means we can confirm your volume down button was pressed & hold)
2. press home button & power button check if the device is going to download mode ( if you stuck press power button u will get exit)
how ever try to clean the volume down button inside and pull slightly. after turn on your mobile.
if your damn sure volume button was broken not working at all, then lets think about it

Cannot reboot into recovery.

Whenever the device boots it gives me a security warning and press power button to continue message. Because of it I cannot reboot into recovery because even when I hold vol up and power the screen comes up and i need to let go of vol up for it to register at which point phone boots into system.
Well, the keys need to be pressed before the phone boots up and I think you also need to be connected to a PC, otherwise it won't work. If you're able to boot into system then adb reboot recovery should also do the trick
I usually do use the adb method. But I would like to use a method that is more reliable. My problem is that intermediate screen that appears before the samsing s20 fe screen that warns the bootloader is unlocked and device is unsafe and requires power button to be pressed by itself. It does not register when I have vol up pressed down. And when I release to press power and no matter how quickly i go back to pressing vol up + power the phone starts booting into system.
KHSH01 said:
I usually do use the adb method. But I would like to use a method that is more reliable. My problem is that intermediate screen that appears before the samsing s20 fe screen that warns the bootloader is unlocked and device is unsafe and requires power button to be pressed by itself. It does not register when I have vol up pressed down. And when I release to press power and no matter how quickly i go back to pressing vol up + power the phone starts booting into system.
Click to expand...
Click to collapse
The phone decides its boot method as soon as the screen turns on, that's why I said you need to have the buttons pressed and connected to the PC way before it even turns on.
Once it turns on and you get to that warning screen you can let go and just press the power button to continue and you don't even have to hold the buttons anymore.
Just do what I tell you and you'll be good
I think holding the buttons after pressing the power button to continue will make it boot to system I think, but I'm not sure lol
Can you get to fastboot? Is this an A/B device?
You can write to the misc partition to tell it to go to recovery.
ShaDisNX255 said:
The phone decides its boot method as soon as the screen turns on, that's why I said you need to have the buttons pressed and connected to the PC way before it even turns on.
Once it turns on and you get to that warning screen you can let go and just press the power button to continue and you don't even have to hold the buttons anymore.
Just do what I tell you and you'll be good
I think holding the buttons after pressing the power button to continue will make it boot to system I think, but I'm not sure lol
Click to expand...
Click to collapse
Ah. I will try that once I start modding the phone again.
KHSH01 said:
Whenever the device boots it gives me a security warning and press power button to continue message. Because of it I cannot reboot into recovery because even when I hold vol up and power the screen comes up and i need to let go of vol up for it to register at which point phone boots into system.
Click to expand...
Click to collapse
Well i had the same problem, here is how i solved.
First, you need to have a USB-C cable connected to a PC, if not you can do everything right but it wont go to recovery (and i think not even on Download Mode).
Second, shutdown the phone, don't just reset.
Third, Volume up and Power (keep it holding
Once the security screen come, take off the power button and with the Volume up, quickly take off and press again.
It should go to recovery.
Side note:
hey @ShaDisNX255 , nice to see you here.

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