Difference between revisions of "Rock2/square bb/loader mode"
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# power the board, the red led indicate that the board is powered on | # power the board, the red led indicate that the board is powered on | ||
# connect the USB OTG port to PC(Important, you must connect the OTG cable first and then press the key as below) | # connect the USB OTG port to PC(Important, you must connect the OTG cable first and then press the key as below) | ||
| − | # press and hold '''recovery''' key(the one near '''DC jack''') | + | # press and hold '''recovery''' key for 5 seconds (the one near '''DC jack''') |
| − | # short press '''reset''' key(the one near '''wifi antenna''') | + | # short press and release(for 1 second) '''reset''' key(the one near '''wifi antenna''') |
# release '''recovery''' key | # release '''recovery''' key | ||
Revision as of 01:26, 15 June 2015
Loader mode
Loader mode is the mode when the board does not boot but waiting for the command from USB OTG port from PC.
The square baseboard has 3 keys on it, the recovery key, reset key and the power key. We need to use the "recovery key" and "reset key" when go to loader mode.
To go to loader mode, you need to:
- power the board, the red led indicate that the board is powered on
- connect the USB OTG port to PC(Important, you must connect the OTG cable first and then press the key as below)
- press and hold recovery key for 5 seconds (the one near DC jack)
- short press and release(for 1 second) reset key(the one near wifi antenna)
- release recovery key
Now the board should be in loader mode.
To check if the board is in loader mode in PC
Windows
Linux
Make sure you have USB ID 2207:320a, that is rock2 square in loader mode.
lsusb ... Bus 001 Device 018: ID 2207:320a ...
For developers
In u-boot console, you can type rockusb to go to loader mode.