I accidently deleted a downloaded picture on a LG Vortex phone




Do you know is I need to download the Recuva onto Windows then plug my phone/USB into a computer

 
Yes, Recuva has an extension of .exe. It won't run on your phone. Plug your phone then use it as an external device. It's not the best way for internal memory. If you have an sd card, use your mem card reader.