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Microsoft has made things a little easier for those who have trouble updating their Windows Phone 7 operating system by releasing the Windows Phone Support Tool.
When you try to update your Windows Phone 7 when you get one of the following error codes :
800705B4 : The timer expired what we tried to do.
80180080 : We could not update your phone because your operating system might be corrupted,
then try the Windows Phone Support Tool. The Windows Phone Support Tool is an application that fixes problems that prevent a successful update of your Windows Phone 7.
To learn more about using and downloading this tool, visit KB2530409
Read: Windows Phone Update Error Codes with solutions.
RECOMMENDED: Click here to troubleshoot Windows errors and optimize system performance