NanoVNA V2 / Forum

Note: this page is a mirror of
Click here to join and see most recent posts.

Firmware for V2 2_2

n4mf 2021/05/04 18:06

Does anyone know of any major differences in the 20201013 2_2 firmware and the 2013 2_2_8 firmware. Is it possible to use the V2 Plus or 2.3 firmware on a 2_2 device that has the FPU, as mine does have this?


Siegfried Jackstien 2021/05/05 01:21

difference?? both are "outdated" (in other words old)

you can only use the plus firmware if you make all needed THREE steps to
convert a "normal" v2 to a v2plus

change BOOTLOADER (tricky cause you need a programming tool for this ...
can not be done via usb!!)

change FIRMWARE  ... you then need the "plus" fw for your display size
... 2.8 to 3.5 inch (small) ... or 4 inch (big)

and do a hardware modding (change three smd parts)


change fw alone ... DOES NOT WORK!!

change fw and smd parts (not bootloader) ... ALSO DOES NOT WORK!!


what size of display you have??

here the (big) display version (for normal v2 but with 4 inch screen
like the saa2n)

and here for the smaller screen (2.8 to 3.5 inch)

as far as i know 24112020 is the last "official" fw

but in this user group (or one of the other groups around nanovna,
vnaqt, vna safer etc) sometimes you may find newer versions from users
(dislord is good in writing new fw as one major example)

greetz sigi dg9bfc

Am 05.05.2021 um 01:06 schrieb

n4mf 2021/05/04 19:29

Thanks, so far it does what I wanted it for and more so not complaining. I may get one of the 4.3" 4.4GHz units later but this one and the Computer SW gets me a lot of fun time..


Vladimir Lebedev 2021/05/04 19:59

Hello Mitch,
here is the info over the last fw from DiSlord,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,20,81847314

4.3 inch 4.4 ghz version is NanoVNA-F V2, but FW is ONLY from developer.

73 de Vladimir, dl7pga

To reply to this topic, join

View this thread on