PRS-505 Downgrading PRS-505 to 1.0.0.18040 on Mac OS X, possible?

[gojira]

I have a Sony Reader PRS-505 running official firmware 1.1.01.25200. I want to downgrade it to 1.0.0.18040. I do not own or have access to any form of Windows, however I do have a Mac Book Pro running OS X 10.10.2.

Is there any way how using this Macbook, I can downgrade my PRS-505 back to 1.0.0.18040?

Reason why I want to do this: Ultimately I want to install the PRS+ firmware on my Reader. I already tried, however ran into similar problems like discussed in this thread https://www.mobileread.com/forums/sho...d.php?t=171266. I need to downgrade my Reader to 1.0.0.18040 first before I install PRS+. But I do not have access to any flavour of Windows, I only have Mac OS and now I'm stuck.

[goldilocks]

So is you reader unusable? The Sony site has an update to the PRS 600 for the MAC - Version: 1.0.01.08040 (I don't know if the periods being in different spots means anything.) Of course it says its for the 600 only, but if you can't get you reader to work.... The link is http://esupport.sony.com/US/perl/swu...=4800&os_id=99

I don't recommend this if your reader is working! I don't know the differences between the 505 and the 600. I have never used a MAC and I am not a very technical person. I don't even know if you can downgrade. Maybe someone else will come along and help you determine if it is safe to use this download.

Otherwise, maybe you have a friend with a Windows PC that can help you out or a library in your area that has computers for use.

[gojira]

Originally Posted by goldilocks

So is you reader unusable? The Sony site has an update to the PRS 600 for the MAC - Version: 1.0.01.08040 (I don't know if the periods being in different spots means anything.) Of course it says its for the 600 only, but if you can't get you reader to work.... The link is http://esupport.sony.com/US/perl/swu...=4800&os_id=99

I don't recommend this if your reader is working! I don't know the differences between the 505 and the 600. I have never used a MAC and I am not a very technical person. I don't even know if you can downgrade. Maybe someone else will come along and help you determine if it is safe to use this download.

Otherwise, maybe you have a friend with a Windows PC that can help you out or a library in your area that has computers for use.

Hi goldilocks, thanks it's nice that you are trying to help but I feel this does not help at all. My reader is not unusable, I described in detail why I want to downgrade. I do not have a PRS-600 but a PRS-505. And I don't need 1.0.01.08040, I need 1.0.0.18040 as I wrote. And I also made clear that I do not have access to any flavour of Windows.

Again, thanks for trying to help, but your answer only distracts and does not add anything helpful, as I have a very specific question and I tried to describe in detail as best as could, for what problem I am looking for help and provided detailed version numbers etc. Sorry but I really don't see the point of your answer.