Is the device currently or is it stuck on a specific light color ? Which carrier/SIM card are you trying to use?
Rushing or skipping steps is the main cause of failed updates. Take 10 minutes to do it carefully, and your LDW931 will run reliably for months to come. ldw931 firmware update better updated
: Some versions have an "Online Update" button that automatically checks for new firmware. Manual Update Is the device currently or is it stuck