It is 1st of June 2019 and new round of sanctions have started under Trump. And severe drainage of battery of my Huawei Android phone has started as well. 20% of batter is gone under just 1 hour. Android System is the main user of battery – around 30%, then WhatsApp follow with 23%. Remaining apps consume less. I have pending update from Android 5.x to Android 6.x on my device but there is button to download this update and I have choosen not to do any activity. Why such unexpected drainage. Is it due to Trump?