A: Yes, generally all user data is overwritten. Always export your satellite list to an SD card before upgrading ( Menu → Data Transfer → Export ).
A: Clone meters often use modified hardware and incompatible firmware. Attempting an official upgrade will almost certainly brick the device. You must use firmware from the clone manufacturer, which is rarely available. satlink ws6906 software upgrade
Remember the golden rules: use a , verify the file name and hardware revision , and never interrupt power during the update. When in doubt, consult official Satlink support or community forums where experienced technicians share verified firmware files. A: Yes, generally all user data is overwritten