"Ed Hansberry, MS-MVP/Mobile Devices"
<spamfree-silvernino********.spambegone.com> wrote
>
> According to http://www.pocketpcfaq.com/faqs/pocketpc2002sp4.htm
> it wasn't for the 3600. It may have been a ROM constraint. All
> EUU's are ROM updates and the 3600 only came with 16MB of ROM.
> After they shoehorned Pocket PC 2002 in there, and still had
> enough room for EUU3, it is possible EUU4 just had too much data
> to fit.
> --

Ed that link does just list the two iPaqs that can be upgraded to EUU4. As I
understand it, if HP don't implement the upgrade then it cannot/should not
be done?

You might be right about the ROM - The 3900 series has 48MB.

BUT, I came across this post where someone installed it on a 3700 series
iPaq and it worked.

http://forum.brighthand.com/showthread.php?t=191413

Interstingly, EUU3 does install on the 3670 but it does not install WMP8.5
because of lack of ROM. Maybe something similar happens with EUU4 and only
system is updated?

So, suppose I try this after backing up to CF card with Sprite. What would
worst case scenario be. Would it be possible that I would have no way of
recovering?

Graham