Does anybody know how to unlock the bootloader? - Samsung Galaxy A10 Questions & Answers

Guys, I'm in need of assistance, I've tried everything, even unlocked the OEM, and the USB debugging is on, but when I try to flash the TWRP recovery on Odin, the procedure fails and it shows a message on the phone saying, "CUSTOM BINARY (RECOVERY) BLOCKED BY OEM LOCK'.
Please, if anybody has a solution, it will really be appreciated.

1-Turn off the device.
2-press Volume Down + Volume UP + Connect the USB cable.
3-You will see a warning and under it three options (Volume up: Continue / Volume up long press: Device unlock mode / Volume down: Cancel restart phone.
4-Will choose Volume up long press: Device unlock mode.
5-Unlock bootloader page will appear, Under it are two options (Volume up: Yes / Volume down: No).
6-Press the volume up key.
The device will reboot and a message will appear telling you that the boot loader has been unlocked, Then press the power switch to continue.
7-Then press the power switch to continue.
8-The bootloader is unlocked, Done.

Related

[Q] Entering bootloader

Am I missing something? I can't figure out how to enter the bootloader from a powered-off state with the typical "hold volume down button while pressing power button" method. I have been able to enter the bootloader using random button-mashing combinations, but have not figured out how to reliably enter bootloader. What's the trick?
Did you try unchecking the fastboot option under the Power settings before using Vol Down and Power simultaneously?
Settings > Power > Fastboot (Uncheck this option) > Power Off
Hold Vol Down and press Power to get to the Bootloader screen.
Worked for me.
Funny how something so simple can be so easily overlooked, huh? Thanks.

Help me unbrick my phone Please

I was factory reset > installing 21a but i forgot the 21a file wasn't in the sd card.
Now the phone is in the lg screen forever and i can't find a way to shut down the phone.
Connect via usb cable to PC,
then do a force reset (Power + Volume down), quickly keep only Volume Down pressed to get into fastboot/bootloader mode.
Once it's in fastboot mode ("bootloader"), tap volume down to switch between "Reboot" and "Shut down".
Once "Shut down" is displayed gently tap the power button, that should turn the phone off.
zacharias.maladroit said:
Connect via usb cable to PC,
then do a force reset (Power + Volume down), quickly keep only Volume Down pressed to get into fastboot/bootloader mode.
Once it's in fastboot mode ("bootloader"), tap volume down to switch between "Reboot" and "Shut down".
Once "Shut down" is displayed gently tap the power button, that should turn the phone off.
Click to expand...
Click to collapse
Thanksyou so much for replying!
should i flash 21a in lgup if i want to unbrick or do i go into twrp?

Entering recovery mode on LGM470 (Stylo 3 Plus)

Hi. I have an LG Stylo 3 Plus (32GB) on Telus, with a locked bootloader and no root.
I am trying to enter recovery mode to clear all the caches, however doing
Code:
adb reboot recovery
just takes me to the screen that says "no command" and has the android on its back.
What key combination do I use to enter recovery? I have tried volume down when plugging in a USB cable, however that just brought up fastboot for unlocking the bootloader.
after you flash a new recovery, take the battery off, an right away press the volume down + power button until you see logo. When you see the logo, just take your finger off the power button and press it again

Need help with password locked unknown tablet

Hi,
My grandfather locked his chinese tablet without knowing how.
Each time we start the tablet we arrive on an input field asking for a password we don't have.
I can't found how to reboot in recovery, however I can boot to fastboot mode with power and vol up keys.
The tablet is branded as a Kliver Klipad KL3889, but there is no other information on the vendor website (klipad DOT fr)
The user manual only says A64 Quad Core CPU and Mali 400MP GPU.
The tablet is running Android 8.1 Go edition, and shows up as "Onda (unverified)" with 1f3a:1006 id according to lsusb command.
When booted in fastboot mode, it shows up with a different id on lsusb :
1f3a:1010 Onda (unverified)
I can not reach the tablet using adb, and when I tried a fastboot
reset using the following commands :
Code:
fastboot -i 0x1f3a erase cache
fastboot -i 0x1f3a erase data
fastboot -i 0x1f3a erase userdata
all I get is the following error :
FAILED (remote: :secure mode,fastboot limited used)
Click to expand...
Click to collapse
What are my options ? Is there a way to fully reset this device ?
perhaps web search: JTAG + tablet details. Some disassembly required. SuperUser has previously recommended Ort JTag.
Factory reset from recovery mode
AnierinB said:
Factory reset from recovery mode
Click to expand...
Click to collapse
As I previously said, I can't access recovery mode. I've tried all keys combinations I could find, and the only one working (Vol Up + power) boot into fastboot mode, not recovery mode.
yodazz said:
As I previously said, I can't access recovery mode. I've tried all keys combinations I could find, and the only one working (Vol Up + power) boot into fastboot mode, not recovery mode.
Click to expand...
Click to collapse
Hi , try this :
1) Turn off the tablet
2) Hold "Volume +" and turn on the tablet
3) Once you see KLIPAD logo on your display, release the "ON" button (or power) while holding "Volume +"
4) You must arrive on the Android logo, and you will probably get the message "No command"
5) You can let go of "Volume +"
And that's where it becomes interesting:
6) Press "ON" (or power), and while holding the button, a pulse on "Volume +"
7) You finally arrive at the menu of restoration
You navigate through the menu by means of the volume keys, and the "ON" (or power) button acts as validation.
Choose "data / factory reset", confirm
Then "reboot system now" and you're done, if that doesn't work try the same process just with VOl- , also what you can try is :
1. Turn off your device
2. Press and hold Vol - and power button , and once you see Logo , fast release both buttons and see if you are into Recovery mode.
Teddy Lo said:
Hi , try this :
1) Turn off the tablet
2) Hold "Volume +" and turn on the tablet
3) Once you see KLIPAD logo on your display, release the "ON" button (or power) while holding "Volume +"
4) You must arrive on the Android logo, and you will probably get the message "No command"
5) You can let go of "Volume +"
And that's where it becomes interesting:
6) Press "ON" (or power), and while holding the button, a pulse on "Volume +"
7) You finally arrive at the menu of restoration
You navigate through the menu by means of the volume keys, and the "ON" (or power) button acts as validation.
Choose "data / factory reset", confirm
Then "reboot system now" and you're done, if that doesn't work try the same process just with VOl- , also what you can try is :
1. Turn off your device
2. Press and hold Vol - and power button , and once you see Logo , fast release both buttons and see if you are into Recovery mode.
Click to expand...
Click to collapse
Thanks.
It works like you said until step 4 where I get the android logo, but no "No command" message.
Then when I hold ON button while pressing VOL+ it doesn't do anything.

How to start recovery mode of Motorola Tab G20

How to enter in recovery mode of Motorola Tab G20
Tab https://www.motorola.in/moto-tab-g20/p
I press power button + volume up when tab was power off.
then it show "=> META MODE" text at bottom screen.
in meta mode I try to press/long press volume up/down button but it has no effect.
can someone help to enter recovery mode.
When the device starts and the Motorola Logo pops up on the screen, press the Volume Up + Power key till the recovery mode appears.
jwoegerbauer said:
When the device starts and the Motorola Logo pops up on the screen, press the Volume Up + Power key till the recovery mode appears.
Click to expand...
Click to collapse
I try multiple times with different timing but I not able to enter recovery mode.
Long pressing power button for 10 seconds turn tab power off.
Tab take 20 seconds before it play "hello moto" audio.
After motorola logo appear, I start to press volumeUp + power button at different time, but it always power off in 10 seconds.
My boot loader is locker, does it required to unlock first?
Recovery mode has nothing to do with Bootloader ( AKA Fastboot ) mode, hence bootloader must not be unlocked to enter Recovery mode.

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