I have a xiaomi redmi note 4 which I had purchased last year and in between it contact’s automatically started getting wrong . I used to save contact with one name and it was saved with other name this problem was showed to the gallery of xiaomi but they did not do any thing the just formated the phone and gave me back for sometime it was all right but after that it started happening again infact a new problem was started the charging port stopped working I took the phone again but this time they repaired it and gave all things were clear but now it started doing something eles the call used to be of some other person and the name of someone else I am fedup of this phone it is good for nothing