I want to download a software for fixing the ''app error'' problem on blackberry 8520

Good Day,

To do this, you will need a computer. So go to this site and download the file:
http://kickass.to/blackberry-curve-8520-firmware-v5-0-0-1728-t5844839.html

Hi, Is your blackberry phone showing "app error" ?
If this is your issue, then you need to reset your phone using Blackberry Desktop Software or contact service center. In the Blackberry Desktop Software, you will be able to backup/restore the phone contents too.

Ok there are some things you need to do.
1 you need the disc that came with your 8520 This disc help you load desk top software. 2 You will need to backup your phone. You can still use this older software.It was make for the older blackberry. Now is your phone for personal or business. If you can backup all your important information on a 8-16 gb micro scan memory card. The more gbs on the memory card the more room you will have.If you need help ican walk you through the process on your computer. The curve is an older blackberry. It can be a memory problem. I suggest you get a bigger memory card and put it into your phone.

I’m happy to help further over the phone at https://www.6ya.com/expert/ronald_e152e07e272e4f27