There are 3 different ways to uploading your mixes.
1.) Upload your set via WIFI on your device. (Default when downloading the Evermix DJ App)
2.) Upload your set on the Evermix website via your desktop.
3.) You can deactivate the tab 'WIFI Only Uploading' and this will allow you to upload your mix/mixes with your device's data.
Please Note: We recommend uploading from your device on a WIFI signal as you can save draining your internet data on your device.
Here is 2 walkthroughs which shows you exactly how to do this: