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1.2. On Linux Host
1) Unzip image compression file on the Ubuntu host PC
$ tar zxvf ACLinux_4.9_{OS_IF}.{PLF_IF}.{PJ_IF}.{BN}.tar.gz
2) Connect the host PC and the carrier board via the microUSB cable
3) Press and hold down the recovery button and then connect the
power supply. After 2 seconds, release the recovery button
The target board should enter recovery mode.
4) You can use lsusb command on the host PC to check whether the
device is in recovery mode or not
$ lsusb | grep 0955:7f21
4
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