Actually no
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Yes, if you get the new update which is out for ps3..not sure about x box...go on www.mercs2.com for details
no the PS3 can not go backward to an earlier configuration after an update like you can a pc
It should tell you if you need to update
Firmware update 2.70 released today next update may
Just where would you get the information to update it from without the internet. The system can not be updated without it being downloaded and then loaded into the PS3. I'm not trying to give you a hard time it's just that you need the internet just to read this answer. Sony PlayStation network has a section devoted to system software updates and support. They have PC update method and Disc update method as well as system update method. A link to this information has been added under related links I have another suggestion for an easy update method if you have a friend with a TV and a WiFi connection. Just take your PS3 over to there house and hook it up and download and update. Because after reading the other methods this seems much easier for someone without the internet. Also you will need the internet just to download the information.