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After a full charge (usb connector led steady) , power it on, get white screen, with the led next to the power switch flashing. Ring a bell? Haven't found where in the users the flashing is mentioned yet. Sometimes it will start normally then go white at what seems like random timing.

Looks like lots of different flavors ....nanovna-XXX. Suggestion as to how can tell them all apart? and which one this is if can tell by peek, attached
rich

Read more info on my site.
73, Gyula HA3HZ

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*** nothing is permanent only change ( ) ***

hi Gyula,
tnx for the info on your site on different models. Was there something there related to the problem I posted that maybe I missed?

Which LED is flashing - the charge or the other activity LED?

The activity LED flashes as a sweep is occurring. If you're only getting a white screen, check that a solder connection under the LCD has not cracked.

Can you still access the device via the console over a USB connection? If YES, then it sounds like an LCD issue.

Good luck

Its the activity LED that's flashing, always.
Just tried the usb path and yes that's ok, so a display issue does appear to be the issue, just ran a few sweeps and ok except for screen still white. Will check that, tnx Larry

The traces on the LCD flex circuit can crack if the flex is bent at a right angle.
Also, a few other forum members have seen this issue - they carefully removed the LCD (just release it from the metal frame around the edges) tilted it up and re-touched the soldering. Then, snap the LCD back into the frame.

Good luck!

Great, tnx for the lead. With the saver sw working fine, I should be good to go, makes sense
rich

Looks like all I needed to do for now is pull the top shell and reseat it and so far I'm good to go. Will dig deeper if need but I'm back on the air for the moment! Tnx all
rich

Great you got it working again, Rich.
Definitely looks like a cracked solder joint on the display flex.?



On Sun, 7 Jun 2020 at 5:33 PM, Rich<k0zx.co@...> wrote: Looks like all I needed to do for now is pull the top shell and reseat it and so far I'm good to go. Will dig deeper if need but I'm back on the air for the moment! Tnx all
rich