I have just uploaded to the Files section of this Group five FSBs (Field Service Bulletins) that pertain to MotoTrbo equipment. Of particular importance is FSB10163, which addresses the correct procedure to follow when upgrading the firmware in XPR repeaters, mobiles, and portables.
Those readers who have performed firmware upgrades on Commercial or Professional Series radios are used to the process taking no more than a minute or so, depending upon the number of personalities and features programmed. However, a firmware upgrade on an XPR8300 repeater could take as long as 20 minutes! The subject FSB cautions technicians to be patient when upgrading firmware on all MotoTrbo radios, since disconnecting the cables before the procedure is finished will leave the radio inoperative and require that it be sent to the depot for repair. Read FSB10163 for the details. 73, Eric Lemmon WB6FLY
