quick question

[tpnotch420]

I currently have sprint ppc6700 and was experiencing a lot of problems with my phone so I thought upgrading to win mobile 6 would fix my problems and while it fixed some it appears that some of my issues are due to hardware failure.

My question is Does loading win mobile 6 void my insurance with sprint? I want to take the phone in for repairs or to get it swapped out. If it does void the insurance is there any way I can restore the phone back to the way it was when I originally got it. All I did was change the OS. is there a download for mobile 5 for sprint availible somewhere

thanks for the help