[Elecraft] P3 Firmware update fails

[TL_Netvision]

Hi all

I am trying to upgrade a P3 MCU 1.29 to 1.54 and\or 1.60  (No SVGA option
installed).

When I hit “send checked items to P3”  the relays click every 2 seconds and
I see 2 messages repeat forever:
1.  “Attempting to connect P3 on port COM1 at 38400 bit/s” in the P3’s
utility window,
2.  ”Checking for SVGA” on the P3’s screen. 

No uploading is performed & I can terminate the loop only with the  “cancel”
button.

Environment:
-P3 utility ver 1.16.3.1
-P3 is connected only to PS (13.8v external)  & PC (Genuine full RS-232
cable).
-All files are present in the “P3 firmware” folder (Windows 10 1803 build
17134).

Any ideas please?

Thanks in advance, 
Isaac, 4Z1TL


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