This repo contains releases of Ucam firmware. Please check them out here.
https://github.com/iotexproject/ucam-firmware/releases
In each release, linux.bin is for updating firmwware from SD card. update.bin is for updating firmware from OTA (you will get update notice directly from your app).
- Make sure SD card in FAT32 format (otherwise please re-format it to FAT32)
- Copy linux.bin to the root path in SD card
- insert SD card to Ucam
- reboot Ucam and wait for the update
- Take SD card out after update successfully.