Back up wechat's data and then restore the data
I use wechat for business. Now my wechat will not open in my iPhone 5s, iOS 9. I want to be able to pull the wechat data off the phone (without opening the app, bcs I cannot) then delete the wechat app, then reinstall the app and then import the data. Or some other way to preserve the data in the reinstall app would also work. Thank you in advance!
itunes-OTHER, OS X Mountain Lion (10.8.3)