BenF 3.x FW on new LCD driver devices [flick. screen solved]

New DSO201 owner here (as in, i’m a new owner, not that i own a new nano necessarily!).

Any road, i thought i had everything ready to go on updating to BenF firmware on my Nano but i may have made a boo-boo somewhere (probably by missing a step that i will come to in a bit).

Base on the firmware upgrade screen info, i rightly assumed that i could use hex files directly transferred to the device (one at a time), via USB, to update so I downloaded the V364_APP.hex and V353_LIB.hex and had at it. Or tried to…

On attempting to transfer the first file (V353_LIB i think), the file transferred and, as expected, the device disconnected and…that was all she wrote. The device would not re-connect via USB. I left it for a bit, in case it was ‘thinking’ but nothing changed. I’ve now unplugged it and tried rebooting but i get a ‘digital storage oscilloscope’ title bar and nothing else (at least before i had the purple test trace and it kind of worked in a clunky way).

So, now whenever i plug the device into my laptop and switch on using the ‘-’ key method, the DSO switches to the correct screen and the device (‘DFU…etc’) appears in Windows explorer but immediately vanishes. Therefore i cannot attempt to transfer any other hex files.

Now, i’ve noticed that with Firmware v3.29D, as i have, i should have perhaps used the BENF_P2 file (BenF_3.64APP_3.53LIB_patched_v2.zip) from rimidalv007 but, alas, even though i have downloaded that file i cannot transfer it to the device to the aforementioned ‘vanishing’.

Any thoughts on how i might get my DSO back up and running would be greatly appreciated. Thanks.