MEDIATEK LinkIt Smart 7688 Developer's Manual page 47

You now have the latest firmware on your LinkIt Smart 7688 development board.
• Using a USB drive :
Save the firmware file (
1)
download the latest firmware from MediaTek Labs website.
Plug the USB drive to LinkIt Smart 7688.
2)
Press the Wi-Fi and MPU (Reset) button, then release the MPU Reset button only but hold
3)
the Wi-Fi button for at least 5 seconds and release (Wi-Fi LED turns off), see Figure 27 for
detailed LED status. Do not press the Wi-Fi button for longer than 20s or it will enter boot
loader mode.
Flashing Firmware From a USB Drive
Press
Wi-Fi
Reset
Button
MPU
Reset
Button
Wi-Fi
LED
Figure 27 Wi-Fi LED Status During Firmware Upgrade
LinkIt Smart 7688 will start to read the firmware image (Wi-Fi LED blinks fast) and perform
4)
the firmware upgrade process (Wi-Fi LED blinks slowly). This process takes about 3
minutes to finish.
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
MediaTek LinkIt™ Smart 7688 Developer's Guide
Figure 26 Firmware version
lks7688.img)
in the root directory of a USB drive. You can
Release
Click
Blinks fast (loading)
5 secs
Reboot
Release Wi-Fi Reset Button
When LED Turns Off
© 2015, 2016 MediaTek Inc.
~ 30 secs ~ 3 mins
Blinks slow (flashing)
Auto
Restart
Page 47