After installing an app from the Play store called "Notification Toggle" on my UG802-II Android 4 Mini PC it won't boot again! Now it's stuck at the screen saying R-Box. It seemed to work at first when it was running after I installed the app but later when I tried to restart it the device is stuck at the loading screen! Does anyone have any idea how to fix this problem? The device is a UG802-II Dual-Core RockChip RK3066 Dual Core Cortex A9 1.6GHz running Android 4.1.1 w/ Wi-Fi / Bluetooth / 1GB RAM / 8GB ROM. The problem with trying to recover it is that it doesn't have a reset button or OTG port like the old MK802 did and I don't see anyway to reset it or even get into it.