WR44-U and When the modem reboot, the WLAN+DTE+NET+SIM blinking

My model is WR44-U and When the modem reboot, the WLAN+DTE+NET+SIM blinking bargraph and impossible to connect web browser and also Serial (RS232).

Do you have a possibility to restore my modem ?

Hi this looks like the router could be in thin image and you should try and use the recovery process on the support site.

https://www.digi.com/support/productdetail?pid=5501&type=utilities

this will depend on the wr44 version if it is v1 or v2 if it has v2 on the label then its a v2 or check with tech support and the serial number