checksum

Hello all. The uniden RMA generator for the 536 asks for a serial number/ESN and the ESN checksum. It says to go to SETTINGS → SEE SCANNER INFORMATION → FIRMWARE VERSION The ESN checksum is NOT there!!! Where is it why is this silly number needed presumably each radio has a...

If you get the "CHECKSUM FAILURE" error while uploading data to either the 310 or 410, forcing a full reset before it will finally take the new programming, please post in this thread. I've had the error happen to me at anywhere between 0% and 98% of the uploading progress, it seems quite...