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VT-SBC-3399 | User Manual 24
2.5
Boot Mode
The Board has three modes to boot up.
•
Normal mode
VT-SBC-3399 starts up automatically, with modules loading in sequence to boot up the
system normally.
•
Loader mode
Under the Loader mode, bootloader will enter the upgrade mode and wait for
commands from the host for firmware upgrade. To enter the Loader mode, the
RECOVERY button shall be pressed at the system bootup. Specifically:
1)
Make sure the Board is powered on;
2)
Connect the Board to the host PC via a USB Type-C cable;
3)
Press the Recovery button and hold;
4)
Short press the Reset button;
5)
Release the Recovery button.
If the above steps do not work, please keep the Recovery button pressed and long
press the Power button, then release the Power button and Recovery button in
sequence.
