Dear all, I'm using my mi4c for several months, and I'm very pleased with this phone. Untill last week, it seems that my phone draines the battery very, very fast. When the phone was new I could use it al least the entire day without fully draining the battery. Now the percentage drops from 100% to 80% in 2,5 hours with very little use. Could this be a ROM issue, I update on a weekly basis. And this seems to have been started the last week. Any suggestions and/or help is welcome. Thanks in advance.