Resolving Root Failure

[Vlad3]

On the DEXP AL140 smartphone with Android 8.1.0, I had enabled the developer mode and USB debugging in the settings. After I had connected the smartphone to the computer where the Kingo Root program is installed, the program recognized the smartphone. After I had clicked on the “Root” button, the process started, but in the end a message appeared saying that the rooting had failed. I have tried the process a number of times.

Is there anything else which needs to be done in the smartphone’s settings in order to make rooting possible?

 

[Rukbat]

"the rooting has failed" means that Kingo has no root exploit for that phone. (Each phone, for each version of Android, needs a different exploit to root it using a system root.)

To root the phone properly, see Dexp AL140. That gives you a systemless root (Magisk), which also allows you to use a lot of modules that you may find handy. (Magisk and the modules are all free.) And it's the same root method on all phones, on all versions of Android from 5.0 up.

 

[Vlad3]

Thank you for the information. I have downloaded the various applications from the links given on the specified page. The instructions given in the link and the many sublinks are too complex for me to understand easily regarding what to do with each of the downloaded files. Can you explain what is the first thing for me to do? Apparently rooting a device can be a complex process requiring various programs. I have downloaded the following files on the computer:

adb-setup-1.4.3.zip
latest_usb_driver_windows_2.zip
Magisk-v20.1.zip
MT65xx_USB_VCOM_DRIVERS.zip
platform-tools-latest-windows.zip
SP_Flash_Tool_v5.1824_getdroidtips.com - Latest.zip

 

[Rukbat]

Install adb on a PC or laptop. Install the driver on the PC or laptop. Extract boot.img from the ROM (in the phone if you can - there are zip file managers for Android). Install Magisk Manager (which you haven't downloaded yet). Run it and patch the boot.img file. Copy patched_boot.img to where you have the ROM extracted (on the PC). Which you haven't downloaded yet - it's at AL140_S1_20180901.zip.

Run the command

fastboot flash boot patched_boot.img


in the PC (in the adb directory). If the phone has the a/b partition scheme (seamless updates - you can use the phone while it's updating - which I doubt), use the following commands:

fastboot flash boot_a patched_boot.img
fastboot flash boot_b patched_boot.img


(If the phone doesn't have seamless updating, the second set of commands will fail. If it does, the first one will fail. It won't do any harm to the phone, regardless of which one fails.)

Once flashing is done, either type

fastboot reboot

or just restart the phone, your choice.

Then run Magisk Manager to see if the phone is rooted.

 

[Vlad3]

I have installed the ADB program along with its driver on the computer.
After installing the Magisk Manager on the smartphone, I ran the program. In the opened window, there was a message which stated “Magisk is not installed.” I clicked on the “Install” button. The “Select Method” window opened which offered to download a zip file or to select and patch a file. I clicked on “Select and Patch a File.” After that, I navigated to the boot.img file (which had been extracted from the archive containing the smartphone’s firmware) and selected it. A window appeared saying that the patching was finished and that the patched file had been saved to storage/emulated/0/Download/magisk_patched.img.

I cannot find the folder "emulated" on the smartphone when I go to the “Storage” in the settings. I have also not been able to find the folder when I connected the smartphone to the computer and searched for the folder on the smartphone's memory card through the Windows system.

 

[Vlad3]

I have finally found the file "patched_boot.img." In what program should I run the command fastboot flash boot patched_boot.img ?