Recent content by vci

Thank you for your advice GSDer, I will try wiping the system cache first and then factory reset if it does not work. Appreciate your help!

Hi GSDer, build number is NRD90U, I believe mine upgraded from 6.0.1, there was security upgrade couple of days back, then 7.0 came yesterday. I don't know how to wipe system cache, no factory reset either, I hope I don't have to do it because I have lot of data and app installed.

Doing my phone call in my office, no moving and always worked before. Happened multiple times today already, I saw cellphone signal reset every time call got dropped. Also my wechat video chatting feature not passing audio, not sure if it is directly related to the upgrade