I promoted Xiaomi smartphone as very good and stable because of long years MIUI ROM development. However, I was wrong about this when I discovered factory data reset bug on Redmi 1S. And then another bug occurs when my mom use it ~ fail to send SMS issue. This SMS bug does not occur every time. It will fail to send SMS when contact number area code is missing. Example, from +60-12-1234567 to 12-1234567 only. You won’t face any issue when it has the full number with area code. Does Xiaomi Mi 3 or Redmi Note also have this SMS bug?
SMS issue on Redmi 1S