I bought a Firefly RK3399 and followed the Rockchip Linux guide(http://rockchip.wikidot.com/linux-user-guide) to make a system file. It works perfectly on this board when flashing it with flash_tool, as described in the guide.
Then I use flash_tool on the new board I bought(which is also a Firefly RK3399), but when debugging the boot sequence through the serial port, it shows this:
"
hdr
0x0 :a 0 0 14 1f 20 3 d5 0 0 20 0 0 0 0 0
hdr
0x0 :d7 18 27 0 0 0 0 0 e8 31 26 0 0 0 0 0
hdr
0x0 :0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
hdr
0x0 :0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
hdr
0x0 :0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
"
How come it works on one board, but not the other?
Yes, but after flashing several times it works.
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