Important Questions about updating 9900 to BB 7.1 OS

Hi, I have received the notification that my BB 9900 needs to update to the BB 7.1 OS before December 14, 2013.



My concern is, will this delete my memo's? I have many of them and I do not want to lose any.



Will it delete my regular phone contacts and BBM messenger contacts?



Will it delete my media files, as in my pictures and videos that I have saved to my BB 9900?



Please, if anyone can help answers these question it will be greatly appreciated.

Hi there, welcome to CrackBerry! If you use the DM to do your upgrade it will just back them up and restore. The only ones that you would lose probably are some old SMS ... as they don't back them up and restore well.

Thanks a lot zocster, I was really unaware of what to do before. I will be sure to use DM to do the update.