1These instruction should help you in flashing the bootloader 2and AOSP images built from sources. 3Detailed instructions on how to setup the Board can be found 4here: 5https://github.com/96boards/documentation/wiki/HiKeyGettingStarted 6 7For flashing the bootloader, the top two links should be installed 8(closed) and the 3rd link should be removed (open): 9 10--------------------------------------------------------- 11| Name | Link | State | 12| Auto Power up | Link 1-2 | closed | 13| Boot Select | Link 3-4 | closed | 14| GPIO3-1 | Link 5-6 | open | 15--------------------------------------------------------- 16 17Link 1-2 causes HiKey to auto-power up when power is installed. Link 183-4 causes the HiKey SoC internal ROM to start up in at a special 19"install bootloader" mode which will install a supplied bootloader 20from the microUSB OTG port into RAM, and will present itself to a 21connected PC as a ttyUSB device. 22 23Note: The HiKey board will remain in USB load mode for 90 seconds 24from power up. If you take longer than 90 seconds to start the install 25then power cycle the board before trying again. 26 27Wait about 5 seconds and then check that the HiKey board has been 28recognized by your Linux PC: 29$ ls /dev/ttyUSB* 30or 31$ dmesg 32 33 34Run the flash-all.sh script after building AOSP for hikey with the right 35right UART recognised in the above command: 36$ ./flash-all.sh /dev/ttyUSBX [4g] 37 38Remove the link 3-4 and power on the board. 39