I managed to brick my board when updating to 0.9.3 via the web interface.
It was taking more than 15 min so I unplugged the board.
When I reboot now the orange LED gets stuck.
I tried to reflash the image via serial after some googling using kermit and a serial terminal. (option 5) but I get the message below when I reboot.
[ 0.740000] Bridge firewalling registered
[ 0.750000] 8021q: 802.1Q VLAN Support v1.8
[ 0.760000] mtk-linkit bootstrap: Version : LINKITS7688D
[ 0.770000] mtk-linkit bootstrap: Revision : REV3
[ 0.790000] squashfs: SQUASHFS error: unable to read id index table
[ 0.800000] jffs2: Flash size not aligned to erasesize, reducing to 31232KiB
[ 0.810000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000000: 0x7368 instead
[ 0.830000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000004: 0x1f9b instead
continues until the end.
I don't have a special USB cable to try the USB update.
Can somebody can help me to fix this via serial? Is the bootlaoder bricked?