Leetop A203, Руководство пользователя

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This tool requires the host to have the following dependencies:
3.Recovery 模式 Recovery mode
A203 可以通过 USB 进行系统更新，更新需要进入 USB Recovery 模式。 USB Recovery 模式下可以进行文件系统更新，内
核更新， boot loader 更新， BCT 更新等操作。
进入 Recovery 模式的步骤：
1. 关闭系统电源，请确保使电源关闭而不是进入待机状态；
2. 使用 micro-USB 到 USB Type A 的链接线链接载板和主机；
3. 对设备进行上电；
4.
保持按下
RECOVERY
按键的同时按下并释放
RESET
按键，等待
2
秒释放
RECOVERY
按键。
注：在进入 USB Recovery 模式下，系统不会启动，串口不会有调试信息输出
To use USB update, you need to enter USB recovery mode. In USB recovery mode, it can update the file system,
kernel, boot loader and BCT.
Steps to enter recovery mode:
1. Turn off the system power, make sure that the power is turned off instead of in standby mode.
2. Use the micro-USB link line to connect the carrier and the host.
3. Power on.
4. Press and hold the recovery key first, then press and hold the power key. When the light is on, release the
power key, wait for 2S and release the recovery key. Or in the power on state, press and hold the reset key
and recovery key, release the reset key for 2S, and then release the recovery key.
Note:
Please follow the steps of the update manual for system update.
when entering USB recovery mode, the system will not start, and the serial port will not have debugging
information output`.
4. 安装系统镜像 Install system image
a) 将 Ubuntu18.04 主机的 USB Type-A 与 A203 的 micro-USB 相连；
b) 给 A203 上电，并进入 Recovery 模式 ;
c) PC 主机进入 L4T 目录，执行刷机指令：
d) 刷机完成后，给 A203 重新上电登录系统。
a) Connect USB type-A of Ubuntu 18.04 Host to micro-USB of A203;
b) Power up A203 and enter Recovery mode(RCM);
# For Debian-based Linux
systemctl stop udisks2.service
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# For Debian-based Linux
sudo apt install libxml2-utils simg2img network-manager abootimg sshpass
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cd mfi_jetson-xavier-nx-devkit-emmc
sudo ./tools/kernel_flash/l4t_initrd_flash.sh --flash-only --massflash $num --showlogs
#
上述指令是可以同时支持多台下载，
$num
取值不超过
5
，建议不超过两台
# showlogs
主要是显示刷机
log
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