开云体育

nanoVNA locked up

Steve N2IC All Messages By This Member #11411 I have had my nanoVNA since September. Have loaded several different versions of FW without issue. Today, after doing a calibrate, it locked up. Unresponsive to touchscreen. NanoVNA-saver can't talk to it. Power-cycling and pulling the battery have no affect. Options, besides trash can ? Thanks, Steve
Larry Rothman All Messages By This Member #11412 Sounds like a static discharge may have done something. The schematic is available so why not do some simple troubleshooting? Make sure the 3.3v regulator is working: 5V in and 3.3V out. Disconnect the battery and see if the unit runs OK off of a USB only power - does the charge LED light? toggle quoted message Show quoted text On Friday, February 28, 2020, 11:29:27 a.m. GMT-5, Steve London <n2ic@...> wrote: I have had my nanoVNA since September. Have loaded several different versions of FW without issue. Today, after doing a calibrate, it locked up. Unresponsive to touchscreen. NanoVNA-saver can't talk to it. Power-cycling and pulling the battery have no affect. Options, besides trash can ? Thanks, Steve

Previous Topic Next Topic