1
Download and extract the file to the root directory of the SD card (FAT32 formatted)
2
Insert the SD card into the camera
3
Press and hold the Reset button then plug in power
4
Continue holding the Reset button until the camera's LED flashes red and blue, then release the Reset button
5
After successful upgrade, the camera will automatically reboot
Default password after upgrade (if any) is: admin or admin123
This method only works if the camera can still boot from the SD card. Therefore the success rate is about 50%. Other cases such as hardware failure or flash error will not work.