Looks to me like you do not have a connection via the USB to RS232. Try restarting your PC. Then find a port with the P3 utility that demonstrates you are connected. I just did the update with no issues. I did have to find the correct port, as the port assignments can change based on the amount of stuff you have hooked up and the order in which they are reassigned. I run a W2, K3, P3, Kat500, KX3, etc. Hope that helps you understand the potential issue with the ports and that sometimes they get reassigned.
73, Bill K9YEQ -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Paul M Dunphy Sent: Saturday, January 19, 2013 2:56 PM To: [email protected] Subject: [Elecraft] P3 Firmware Checksum failure - Supplemental I have the additional information from the P3 Utility program if that is a further clue: Elecraft P3 Utility Version 1.12.10.4 OS Version 6.1 Build 7601 Windows 7/Windows Server 2008 R2 P3 MCU version ??.??. RS-232 speed 38400 bit/s. MCU firmware file checksum reconciliation word is 0x00427142 Attempting to contact P3 on port COM4 at 38400 bit/s Sending firmware file C:\Users\DunphyP\AppData\Roaming\Elecraft\P3 Firmware\p3m0120.hex to MCU Error code 0xE2000048: No response to poll while synchronizing to buffer boundary MCU verification failed. Reload MCU. Click "Close" to close this window I get this every time I upload the file to the P3. 73, Paul VE1DX ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html

