HiSilicon HiKey970, Update Image Manual

Page: 9 / 10

HiKey970
Update Image Guide 2 Hisi-idt
Issue 01 (2018-03-11) HiSilicon Proprietary and Confidential
Copyright © HiSilicon Technologies Co., Ltd.
5
Image1: fastboot1.img
Image2: fastboot2.img
+----------------------+
Sending fastboot1.img ...
Done
Sending fastboot2.img ...
Done
2.3 Burn Images
After download fastboot1.img and fastboot2.img on the board, then can use fastboot
command to burn images:
sudo fastboot flash fip fip.bin
sudo fastboot flash fastboot l-loader.bin
2.4 Troubleshooting
a. After enter the force download mode, if Ubuntu PC cannot recognize the device ttyUSBx;
this issue can be fixed by input below commands: sudo echo 12D1 3609 >
/sys/bus/usb-serial/drivers/option1/new_id sudo makenod /dev/ttyUSB0 c 188 0
b. Need supervisor permission for hisi-idt.py: "sudo python hisi-idt.py"
c. Need supervisor permission for fastboot: "sudo fastboot"
d. If download binaries failed with below message:
Sending fastboot1.img ...
failed
failed
Usually this means you are using the wrong ttyUSBx device; the reason is when connect
board with the uart cable and usb cable, then PC will create two device nodes /dev/ttyUSB0
and /dev/ttyUSB1;
But the nodes which are randomly binding to uart and usb, so sometimes /dev/ttyUSB0 is
created for the uart and /dev/ttyUSB1 is for the usb port, in this case should use /dev/ttyUSB1
for the idt; if PC exchanges the nodes then should use /dev/ttyUSB0.