Jimmy, Somehow you got your K3 into the Force Firmware Download state. Download the firmware to the K3 and all should be OK.
Since you did the reset, you will have to restore the configuration (hopefully you have a saved configuration.
If not, you will have to do all the setup and calibration procedures. 73, Don WFPR On 2/4/2016 10:41 AM, James D. (Jimmy) Walker, Jr. via Elecraft wrote:
Turning on my rig a few nights ago (K-3 Serial #6512) I got a strange response. The rig would not turn on. All I got was a blinking TX light and screen display reading of MCU LD. My K-3 Utility program could not access the rig through the COM port. I looked up the reset instruction saying I should use the key combination of POWER + SHIFT 0/0 (whatever that is). Assuming I did it right, it didn’t work.
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