Hell friend,
3 things you were asking:
1, How to upgrade:
1), Recorder firmware: a), Use your home Wi-Fi; b), Launch DDPai APP---ME---About; c), Download the new firmware into your phone; d), Connect your phone with DDPai APP via "Wi-Fi direct"; e), The camera will start to upgrade the firmware automatically;
2), APP new version: a), Use your home Wi-Fi; b), Launch DDPai APP---ME---About; c), Upgrade APP directly;
2, How to reset dashcam:
1), Use a needle to press the reset hole and hold for several seconds, then the camera will start to reset automatically;
3, How to connect DDPai mini2 dashcam with your phone ( I guess android phone?):
1), Turn on phone's "location" permission;
2), Turn on "all permissions" to DDPai APP in your phone---settings---permission;
3), Turn off "mobile data";
4), or, you probably need to turn off "intelligent network connection" in DDPai APP---ME---Settings---Advanced Settings, because some android phones will automatically connect to other Wi-Fi devices;
5), Then: Your phone---Wi-Fi---Find DDPai device---Input password----Launch DDPai APP.
BTW, if you search "Uber driver shooting" video via internet, if you see DDPai mini2 provided the key evidence, DDPai mini2 is indeed an reliable camera