I am having a problem with Nabi Big Tab 20 HD. All apps work for a few minutes and then stop responding. I have tried re-initializing it, wiping the cache, deleting all third-party apps and installing the newest APK of the Google Play Store. It does it in Safe mode as well. It is running 4.4.2 and all apps are up to date. I'm pretty sure I'm leaving out some of the things I've tried.... I've been at this for hours now haha. Any ideas would be appreciated... Thanks!