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3. Upgrade Partition Image

3.1. Enter Bootloader Mode​

While device is running normally, connect device’s download port with PC through Type-A to Tyep-C USB cable, then run this command on device terminal or debug console:

sudo systemctl reboot bootloader

_images/download_port.jpg

3.1.1. Check Bootloader​

Open windows terminal (PowerShell), navigate to the location of Android Platform Tools, then run “.\fastboot.exe devices”

If the device is in the bootloader mode, fastboot will show a detected device:

PS D:\path\to\platform-tools> .\fastboot.exe devices
xxxxxxxx         fastboot

If fastboot shows nothing, please check driver installation and usb cable.

3.2. Download Partition Image​

Usage: fastboot.exe flash partition name path to image

For example:

.\fastboot.exe flash boot D:\path\to\boot.img

.\fastboot.exe flash dtbo D:\path\to\dtbo.img

# reboot device after download.
.\fastboot.exe reboot

Notice: Download wrong file will cause system failure, so check before download. Seek help first if don’t understand. Don’t act blindly.