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[Resolved] HOW TO Unlock Bootloader LAVA A3 MT6750

[Warning] im not responsible for any brick
Requires
1 PC
2 ADB driver link https://mega.nz/#!Q7YnCQTb!W0baXOu5VxYLTfPBClumkSR_pCAK-Mntiz7HnKCx7yw
3 usb cable
step 1 install adb driver on pc
step 2 backup anything you want to keep [Example] photos and videos
step 3 in LAVA A3 you go to settings > about phone > more > click 7 time Build number now back to settings go to more Now you will see developer options there ON that
step 4 Enable OEM unlocking
Enable USB debugging
like screenshot
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step 5 USB cable connected through PC
then open cmd command
Type the first comment then you will see a popup ON mobile screen Allow USB debugging like this screenshot
HERE THE commands
1) adb devices
2) adb reboot bootloader
3) fastboot devices
4) fastboot oem unlock
5) fastboot reboot
All done
4) (select volume up for confirming unlock bootloader and select volume down for not unlock bootloader) like this screenshot
After you unlock bootloader you will see this message like this screenshot
If you try these comments than you Device storang data and all others data will be erage so you need to make a backup first
Donation linkhttps://www.paypal.me/AnvarMc
HOW TO FLASH RECOVERY LINK https://forum.xda-developers.com/general/help/lava-3-lava-z25-twrp-philz-touch-t3807436

while doing that my phone suck on fastboot mode, any help ??

You need to contact their customer service department and they will help you.

problem solved.
while i was stuck on fastboot. just press volume up+volume down+power button at the same time 30+ sec. and it's normaly on. and again follow the steps. now i'm sucess. thanks

OEM unlocking
How? How are you expecting me to turn on OEM unlocking when there is no option for doing that in devloper option. I tried rsetting my device as it was new. without any update nothing but still i couldn't found OEM unlocking option in devloper option. then i used there OTA Update and even then i wasn't unable to locate OEM unlocking. without that this post doesn't work. I use lava a3 (not mini) still didn't work . Tired googling , Some forams but didn't worked . Help :crying::crying::crying::crying:

abirbd said:
How? How are you expecting me to turn on OEM unlocking when there is no option for doing that in devloper option. I tried rsetting my device as it was new. without any update nothing but still i couldn't found OEM unlocking option in devloper option. then i used there OTA Update and even then i wasn't unable to locate OEM unlocking. without that this post doesn't work. I use lava a3 (not mini) still didn't work . Tired googling , Some forams but didn't worked . Help :crying::crying::crying::crying:
Click to expand...
Click to collapse
Basic knowledge must have this process
Otherwise you will break your phone

mranwarmc said:
Basic knowledge must have this process
Otherwise you will break your phone
Click to expand...
Click to collapse
I explained my problem bro! i don't might have that knowledge! help me out bro

[ROOT] TWM Amazing X3s

I understand this is an old phone and probably almost useless as well, but this is a backup phone I happen to have around. Being an entry level phone, there's not a lot of RAM and internal storage, it slows down massively over time. Feeling frustrated, I decided to root the phone so that I can remove unwanted apps and install trimmer.
This is a very brief guide for rooting the TWM Amazing X3s in hope that it would be useful for others as there's very little information about rooting this device, it also serves as a record for myself in case I need to root it again in the future. I've already tried flashing TWRP, but I was never able to boot into TWRP and it appears to be restored back to the stock recovery everytime.
What you'll need:
Stock ROM
Magisk Manager
fastboot (there's plenty of resources online describing how to install/use it)
Android USB driver (there's plenty of resources online describing how to install/use it)
You must unlock the bootloader before applying root, be aware that this process will wipe your phone clean, make sure you have backed up everything first:
In "About phone", repeatedly tap "Build number" until developer options are enabled.
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In developer options, enable "OEM unlocking"
Power off the phone
Press and hold volume up + power until you see the bootloader
Move the cursor to fastboot mode with volume up, select it with volume down.
Once you get into the fastboot mode, execute the following:
Code:
fastboot oem unlock
You'll be prompted with this:
Confirm unlocking with volume up
Execute
Code:
fastboot reboot
Root instructions:
Install the Magisk Manager apk
Extract boot.img from the stock ROM you downloaded and copy it to your phone
Open up Magisk Manager, tap install. When prompted with options for installation, select "Patch Boot Image File". Browse to boot.img you copied previously.
Magisk will generate a patched_boot.img file under the same location as boot.img, copy it to your PC.
Boot into fastboot mode again
Execute
Code:
fastboot flash boot patched_boot.img
Execute
Code:
fastboot reboot
Once the system boots up, open up Magisk Manager to check if it's been installed.
Congratulations! Your phone is now rooted!
For those who are lazy, you can skip steps 2~4 and download patched_boot.img instead.

how to downgrade realme 5 realme ui to android 9

all needed file
platform tool adb download and unzip
https://drive.google.com/file/d/1JJDEn2E_6A9SG1C4vEq28T8xIHq5EjBh/view?usp=sharing
in-depth test for realme ui realme 5
https://drive.google.com/file/d/19MJujKBYLQiYyk_UhJYXeplHDG80maVq/view
https://forum.xda-developers.com/attachment.php?attachmentid=5070971&d=1596107780
adb driver download and install on your computer (very important)
https://drive.google.com/file/d/1KQe2ttC7diT9UMptg_aMnA0PPxuwP8nR/view?usp=sharing
team win recovery for both 9 and 10 (download and rename recovery.img then move to platfromtool folder)
https://drive.google.com/file/d/1URxZOFZm7RpgIB5_QDiOr-WwDcKo2zT_/view?usp=sharing
stock rom android 9 for realme 5 up via twrp, note : copy it to the external memory card
https://drive.google.com/file/d/1fciqVhPLL5ZsaINbOrS76-d6HONfK3E1/view?usp=drivesdk
begin
Turn on USB Debugging Mode and OEM Unlocking on your mobile phone. To do this; go to settings >>> about >>> Touch Continuous build numbers 7-10 times to enable Developer Options, then go to Developer Options, and turn on USB Debugging Mode , Unlock OEM
Unlock Bootloader with ADB and Fastboot
open the in-deptset application installed on your mobile and Turn on mobile data or wifi and Select Start registration, accept Terms and Conditions, Submit your application. Within 1 hour or up to 24 hours, you will receive a confirmation from the Realme team : successful review
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After the successful review notice, boot your phone into fastboot mode and connect your phone to the PC . you can enter fastboot mod by press use volume down+power in some second
Now, connect the Oppo Realme 5 mobile phone to the computer via a USB cable.
Launch fastboot on your computer by going to the platformtool folder, press and hold shift and right click then select open powershell window here and type the command below
fastboot devices
fastboot flashing unlock
it will pop up a board on the phone screen, use the volume key to select unlock bootloader, then press the device's power key to reboot and wipe all data ( remember backup your data before do it)
done bootloader unlocked
after booting, Check it again, turn on Developer Options, then go to Developer Options, and turn on USB Debugging Mode, OEM Unlocking. Sometimes it disables itself after booting.
Install twrp, go to fastboot mode on realme 5
Connect the Realme 5 mobile phone to the computer via a USB cable.
Launch fastboot on your computer by going to the platformtool folder press and hold shift and right click then select open powershell window here and type the command below.
fastboot devices
press Enter, It will display the connected device. type the command
fastboot flash recovery recovery.img
done
Now still in fastboot on realme 5, use volume key select recovery and press power key to boot into recovery, go to twrp and choose as follows
1. Format Data
2. Wipe cache, dalvik
3. Select the original Android 9 rom downloaded on the memory card to install
4. Reboot and enjoy the results
if you want install magisk to have root, pay attention after flashing magisk, flash this file , otherwise it will continue to boot into fastboot
https://drive.google.com/file/d/1abyMuJu3yCvt5LO1H59Am4o6ymQuaJi-/view?usp=sharing
:fingers-crossed:

This phone model does not support in-depth test
Hi, I tried to run the in-depth test but the error message "This phone model does not support in-depth test". I have a Realme 5 and I followed the step by step procedure. Is there a way to solve it?

Andre_the modder said:
Hi, I tried to run the in-depth test but the error message "This phone model does not support in-depth test". I have a Realme 5 and I followed the step by step procedure. Is there a way to solve it?
Click to expand...
Click to collapse
Done for me,try attached

[Tutorial] Relock Bootloader of Realme MediaTek Devices

Hello Guys! Its Sarthak Roy here,
Actually I am the mod/admin of Realme C3 telegram group. Recently many of them had tried to relock the bootloader without asking me the process and got bricked. So, I thought to make a tutorial for Relocking Bootloader of Realme MTK based devices.
STEP 1: Download the unlock tool again to apply to exit the in-depth test.
STEP 2:Click “Apply to exit in-depth test”. You should manual operation enter the Fastboot mode(Press both the Volume down button and the Power button when power is off).
STEP 3:In the fastboot mode, use the engineering command below on your PC to re-lock the bootloader.
- Enter the command: fastboot reboot bootloader
- Press “Enter” on your keyboard
- Enter the command: fastboot flashing lock
- Press “Enter” on your keyboard
STEP 4: Press the Volume Up button to select the “Lock bootloader” option (or press the Volume Down button to select “Do not lock bootloader" and keep it unlocked).
STEP 5: Then enter command "fastboot reboot”. The phone will reboot and exit the in-depth test mode.
[PS: All user data on the phone will be erased - we recommend you perform a data backup prior to applying.]
Hope you guys understand the steps. If you got any query, feel free to ask me anytime.
Thanks and Bye

Reserved

i flashed the pbrp recovery to my phone without root through fastboot .but i am not able to go in to recovery neither through key combination nor through fastboot .so if i lock my bootloader my custom recovery will be their in the phone .also my phone is not rooted . i can access the adb through the pc but can not access the fastboot so i tried bugjaeger to access fastboot but bugjaeger does not support the fastboot reboot recovery command . what shoul i do

i dont have the stock recovery for rmx2027 .if i get it i will flash that and lock the bootloader

ashwin_tembhekar said:
i flashed the pbrp recovery to my phone without root through fastboot .but i am not able to go in to recovery neither through key combination nor through fastboot .so if i lock my bootloader my custom recovery will be their in the phone .also my phone is not rooted . i can access the adb through the pc but can not access the fastboot so i tried bugjaeger to access fastboot but bugjaeger does not support the fastboot reboot recovery command . what shoul i do
Click to expand...
Click to collapse
Use "adb reboot recovery" when phone is powered on
and use "fastboot reboot recovery" in fastboot mode

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can anyone help?

How To Guide How To: Region Switch on Nord2T

Hello again everyone. This is a quick guide on how to change Regional firmware on our Nord2T device (ie going from CPH2399 to CPH2401)
I cannot be responsible if you brick your device. Your phone, your choices, your responsibility!​
Before we get started I would recommend unlocking the bootloader (unsure if this is a necessity but my device was unlocked at the time of trying so I would recommend users do the same)
1 - Unlock the bootloader (if you haven't done it already...beware that this will erase all of your user data). To do so, you must:
Enable developer options
Enable the "OEM unlocking" option
Enable USB debugging
Have both adb and fastboot, from SDK Platform Tools available on your PC
Connect your phone to your PC using the USB cable and run the following commands:
Code:
adb devices
(just to make sure that your phone is, in fact, recognized by your PC and that you're able to run adb commands)
Code:
adb reboot bootloader
(so your phone will reboot into fastboot mode)
Code:
fastboot flashing unlock
(device should now unlock)
Code:
fastboot reboot
(device reboots with an unlocked bootloader and data partition wiped)
2 - Download and Install Fastboot Enhance from HERE
3 - Download the IND rollback package from HERE
4 - Extract the rollback package zip to your PC (the only file you need once it is unzipped is payload.bin)
5 - Connect your device back to PC and reboot to fastboot yet again.
Code:
adb reboot fastboot
6 - Once in fastbootd open Fastboot Enhance on PC and you should see your device in the "Fastboot Visualization" tab.
Make sure to click on "Ignore unknown partitions" on the bottom of the screen. Then click on the "partitions" option and under partitions and delete every file that ends with "cow" refer to screenshot, just select and delete.
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7. Click on "Flash payload.bin" and browse for the payload.bin you extracted earlier.
8. Once flashed you can reboot (recommended to either factory reset from settings after the device restarts or wipe data in fastboot for a smoother experience.
This is only tested on a Global device using firmware version CPH2399_11_A.17 and flashing IND CPH2401_11_A.17 ROLLBACK PACKAGE!!
Subsequent updates will now be on the IND branch for your device also.
Hope this helps someone out!
If anyone has any questions/input/recommendations please feel free to discuss below and any issues we will help to resolve them.
Have a good day peeps