I was using Lumia 520 for 2 years. I had all apps installed on my phone memory. After 8.1 update I moved all apps to sd card. Now I have bought Lumia 730, and inserted the same sd card in it. Now under storage sense when I select store new apps on sd card, it says sd card contains app from another phone, to install apps on sd card you have to delete apps from another phone first.
Now I don't want to delete those apps, i have important things stored under few apps which I dont want to loose.
What can I do to not loose that data? Official windows doc also says I have to delete those apps.