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.
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- What can I do to increase speed on my Lumia?
- What to check if I can't sign in or create the Microsoft account on my Lumia phone during the initial setup?
- I cannot download or update apps from Store on my Lumia. How can I resolve this issue?
- I cannot end a call because my Lumia screen remains black