BlackBerry recently released a new BlackBerrry 10.1 MR (maintenance release) update, and it looks like the update has a flaw relating to SMS messages.
According to the guys over at N4BB, a number of people who have installed the update are reporting issues with SMS on their BlackBerry 10 devices.
Some users are seeing all their SMS messages disappear, others can still seem some SMS messages, although their history on a thread is no longer there.
There are no details as yet from BlackBerry on when a possible fix for the SMS issue will be released. If you have experienced this problem on your BlackBerry 10 device, leave a comment and let us know.
Source N4BB