Every Saturday, PSP Fanboy will answer your burning questions. If you have a question for the team, send an e-mail to andrew @ www.pspfanboy.com with the subject "Ask PSP Fanboy."
Q: Is downgrading to 1.5 and upgrading to the latest Sony update later harmful to the PSP?
A: Downgrading hasn't proven to be too "dangerous" on the PSP. However, you always run a chance of bricking your system whenever you overwrite its precious flash memory. If you're currently running an official PSP firmware at the moment, you can simply update by using "Network Update" or by accessing Sony's official website. However, if you're using OE firmware, you should downgrade first. There are reports that upgrading to the latest firmware from an OE edition will brick your system.