In fact for http://en.egreatworld.com/comunity/index.php?threads/poster-v3-2-9-apk.19358/#post-31448 Is working reasonably well and stable for me. This PW3 APK can be installed and used on any FW on any model being Android 5 or Android 7 based. Keep in mind that will be installed next to PW2 as it is officially still is a Beta (but a good one). For the other problems try a factory reset. Never saw these problems. For me the code is quite stable (A10 on Android 7 and A11 on Android 5).