If using Windows 10, you already have a program (app) called simply, Camera. Phones may need some simple camera app, but never install the Chinese software which comes with any device, as any Chinese software is likely a backdoor into your world.Which app did you download for it, there are many?
I did also. Great value.I bought the $70.00 dollar Teslong and like it a lot.
Malware? What is your setup? I plugged the Teslong into a USB port on my laptop with Windows 10, the computer recognized it Via Plug and Play, used a Windows program, and it's off and running.Be wary of borescopes that attach to your phone or computer. The one I purchased contained malware that tried to infect my phone. Buyer beware.