This is a limitation inherent to Windows Phone 7.x devices, for example, Lumia 800. The Windows Phone 7 platform is capable of transferring only 500 messages.
- Which languages does Cortana support?
- Where can I find info about the amount of memory on my Lumia?
- How do I find the MAC address and other phone information of my Lumia phone?
- How do I open a DNG photo after transferring it to my Windows computer?
- Where are the stories stored and how can I view them later?