Eric, You'd be surprised how often a radio gets bricked during a firmware upgrade. The primary causes are impatience, where the technician disconnects the cables prematurely because he thinks the operation is complete, and the use of incorrect cables or flashing adapters. A radio or laptop battery that dies at the worst possible moment can also be a problem.
Since you appear to be savvy about the long wait between the first and second beep signals, I wonder if you might have used the wrong firmware upgrade package. There are two: "Professional Series Portable Firmware R05.14.03 - Four Line Display Radios" and "Professional Series Portable Firmware R05.14.03 - Non Four Line Display Radios" The "Non Four Line" firmware is for HT750 and HT1250 radios only. The "Four Line" firmware is for HT1550 radios. Loading the four-line firmware into an HT750 will brick it. Assuming you have the proper cables and adapters for firmware flashing, I suggest trying to load the correct firmware to see if the radio can be recovered. Otherwise, it's a $275 repair at the depot. Be aware that once the radio is flashed to firmware version R05.14.03, you should use HVN9025W CPS (R06.11.05) or later to program the radio. 73, Eric Lemmon WB6FLY -----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Eric Vincent Sent: Wednesday, November 11, 2009 11:11 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] HT750 updating firmware. Hello, I've try yesterday to update the firmware on my Motorola HT750 and right now my radio is dead. The original version was R05.09.11 and the wrong one was R05.14.03 Maybe someone in the group have hint for me? Thank you. Eric VE2VXT /VE7
