[hellorheaven]

they ask me same question and give me this solution to try:

Procedure

* To put the device into recovery mode, power on the device, wait 15 seconds (exact), then hold the reset button while bootup continues.
* The bootup process will take approximately 30 seconds and the blue LED will be blinking during that period.
* As soon as the recovery mechanism kicks in, the blue light turns off and HDDLED1 will turn orange. The reset button can be released at this point.
* Then the device will request a DHCP lease and try to get an IP
o If an IP is obtained, HDDLED2 will also turn orange for 1 second.
o If no IP is assigned the following pattern will be shown on the leds and the recovery mechanism will stop.

Power LED Off -> HDDLED1 and HDDLED2 will blink 3 times together -> All LEDs off

* Once network is up, the download and burn process will begin. During the download procedure the LED behaviour is:

Power LED Off -> HDDLED1 and HDDLED2 will turn on and off in turns

* The download and burn will take around 4-5 mins with a fast connection speed.
* Once the download and burn is done:
o If the burn is successful, all LEDs will turn on for 5 seconds and then the device will reboot normally
o If the burn fails the LED behaviour will stay as follows and the recovery mechanism will stop

Power LED On -> HDDLED1 and HDDLED2 will blink together