On my S5, my S Planner wiped out all my tasks after an automatic software update by Samsung. How can I get it all back?

[AC Question]

on S5 my s planner wiped out all my tasks after an automatic software update by samsung

Hi Guys

Anyone knows how to retreat deleted s planner tasks. My Samsung S5 phone had an automatic update. and in the process deleted all my 5 months of tasks.

Is there anyway can get it back. Just as you can do with computer hard drive.

Many thanks
H