Review on Enhanced Communication Experience: Introducing the Grandstream GXV3370 IP Video Phone with Android by Reid Rickerson

By reading the review here I learned how to install Google Play Store which then allowed me to install Tune In Radio and Google Maps. Before that I was stuck. I went ahead and tweaked some phone settings from my previous quick setup. It turns out nice looking little desktop phone. Music that can be listened to via Internet radio streaming is of relatively basic quality, but is suitable for listening in the background while other tasks are being performed. I want to upload some custom ringtones to my phone. However, the procedure described in the Grandstream forum (using an HTTP or TFTP server when restarting the phone) seems to be outdated for this model and does not work. The admin manual refers to LCD settings for this process, but I can't find anything similar on my GXV3370. Has anyone managed to upload their own ringtones?