开云体育

Hi Jacques
I experienced a very similar problem with my VNA, albeit a SAA V2.2, but
perhaps your problem is related.? I wrote a readme (below) for myself and
have had to use it so far on two of the three units I have owned.? It did
apply after I updated firmware and I noticed on the most recent version I
purchased that the second bunch of steps about flipping the display did
not now apply (only applicable if you want to reverse screen orientation
anyway).


Problem: Screen Inversion/Mirroring after Firmware Update

Symptoms: After a firmware update the screen may be inverted i.e.,
mirrored and flipped.
When touching the screen and trying to select a menu item, it won't work
unless you transpose the touches to the opposite sides of the screen.

Fix:

1. Power on the NanoVNA2 with the SMA connectors facing toward you (this
is how the V2 is configured, you'll need to try on a V1 with SMAs oriented
left or right - untested)
2. The screen display will be the correct way round
3. Touch the screen
4. The menu will open
5. To click Config, count 3.5 menu-item box heights DOWN on the LEFT side
of the screen
6. To click the Touch Cal item, click 0.5 menu item box heights UP on the
LEFT side of the screen
7. Perform the Touch Cal as directed on-screen - click top left, then
bottom right
8. Now click Save (directly this time, on the Save menu item as displayed)
and you're done.

To flip the display so that the unit can be used with the SMA connectors
facing away from you (if preferred)

1. Click Display
2. Click Flip Display
3. Click Config
4. Click Save

The unit will now boot so that the SMA connectors face away from you and
the menu can be operated as normal.

Maybe this will help you or someone else, it took a bit of figuring out :)


db