UC browser gives you a free fast server cloud service in which can save videos from slow servers and download it to your phone via UC servers, so first the file is transferred to UC servers then you could download it, thus makes a fastest downloading...
you got yourself a corrupt ota package, thus that happened, only way to sort out this to is visit service centre. Tips for next time:-1. Have atleast 60-70% battery while updating. 2. don't click any buttons or touch phone while updating. 3. Use the ...
set battery mode to optimised and the battery problem will solve, it did for me. it always do. About network connectivity, it's not new issue, best way to solve it to use phone on LTE or 3g only. About lags, it's more related to Samsung's launcher as...