FJ Software

So, i have a problem.
my SE p1i is in a constant reboot loop (turn on, the SE video and sound, then it shuts down again, turns back on again ect ect). I now that my best solution is a reflash. but when i will do that, all of my data will be erased. so my question is, can I do a backup from my phone to PC without turning it completely on? I know this is probably not possible but I had to ask because i really don't wanna lose my contacts and messages.

so, is there any help for my phone and data? any idea would be welcome!

Sorry, for the access the phone has to be turned completly on.

Maybe you already did, but remove both sim card and memory stick, then turn it on again and check the result.