how do I downgrade my 2750?

[alan sh]

I have PDAVIET rom on my 2750 - version 5.2.00H on the boot rom.

I want to go back to the HP version of Windows 2003. So, I unpack the files from HP (SP29856 - fresh download from HP), perform a clean reset of the 2750 and start the "downgrade".

When it starts transferring the data, what I see on the Ipaq is a new window called FUU with "Hello World" right in the middle. The upgrade seems to proceed OK - but the system stays on WM6.

So, what is going on? Where is this FUU coming from and why isn't my Ipaq being put into boot mode?

Any help appreciated

[plsmth]

I get exactly the same thing as Alan trying to downgrade my hx2795 using the same ROM (SP29856.exe) from HP. Yeah I know the ROM is for the 2750 but the hardware specs look very similar between the 2750 and the 2795 so I was hoping I could use the ROM to downgrade from WM5 to PPC2003.

[alan sh]

The rompaq is for all versions of the HX2000 series so it is designed for us. Something else is going on which we don't understand. Anyone elso got any clues?

[dancer_69]

I have PDAVIET rom on my 2750 - version 5.2.00H on the boot rom.

I want to go back to the HP version of Windows 2003. So, I unpack the files from HP (SP29856 - fresh download from HP), perform a clean reset of the 2750 and start the "downgrade".

When it starts transferring the data, what I see on the Ipaq is a new window called FUU with "Hello World" right in the middle. The upgrade seems to proceed OK - but the system stays on WM6.

So, what is going on? Where is this FUU coming from and why isn't my Ipaq being put into boot mode?

Any help appreciated

After the update did you perform a clean reset? Cause when I downgrade to wm5 from wm6 I mention that nothing seems to change(the device boots in wm6) until I perform a clean reset.

[alan sh]

I have done many upgrades on both my 4700's and my 2750. Each time, whether it is using the HP method, or Chris's bootloader program, the Ipaq ends up in bootloader mode before the upgrade starts.

On this occasion, it didn't. I got a program called FUU starting up - and I could access the today screen etc while the flashing was apparently working (the HP utility was gayly counting up the percent numbers). At the end of it, Activesync happily reconnected to my old profile.

I did also try a hard reset - but that still came up with WM6 as the base O/S.

Since BOOTLOADER itself will not work either, I think the latest rom upgrade on there has screwed something up - not sure what, why or how.

Alan

[plsmth]

Yep, what Alan said. The HP update utility apparently thought it was updating the device but the device was just showing the FUU "Hello World" window. And during the alleged update I can go to the Today screen and access my programs.

If I hadn't downloaded this directly from HP I would think this was a joke.

I am able to re-flash WM5.0 to my hx2795 using sp33752.exe downloaded from HP. Everything works as expected, the HP utility puts my 2795 into bootloader mode before flashing the device.

[alan sh]

I cannot find sp33752 - can you give me a pointer?

Thanks

Alan

[plsmth]

Hmm... I just tried searching for sp33752.exe on HP's support & drivers webpage and it found it. Otherwise try:

http://h20000.www2.hp.com/bizsupport/site/search/r4_0/jsp/search.jsp?lang=en&cc=us&prodSeriesId=421420&prodTypeId=215348&tx=sp33752.exe&pc=0&sc=1&nh=10&rf=0&lkc=1&lk=1

Any luck with downgrading to PPC2003?

[alan sh]

Many thanks - I'll try that sometime today and see what happens.

Alan

[PaNa-S]

Hi,

I'm trying to do the same. From some searching around I found out that what you need to do is use the WWE-hx2000_PPC03_downgrade.exe program which comes with the WM2003 upgrade CD.

I don't have the cd, and I have problems with P2P (it's avail both on torrent and ed2k), so if you get that file, and it works for you it'd be wonderful if you can upload it to rapidshare or something and post a reply here.

Good luck and cheers

[alan sh]

I tried that SP - get the error "Could not initialise the device".

My Ipaq is in the cradle and activesynced to my PC.

So, it looks like i am stuck with this WM6 version. Something about it has stopped any form of upgrade or downgrade.

Alan

[alan sh]

So, next thing I tried is to copy the FUU.EXE file to the older SP directory and run that. But all that does is appear to download the nbf file, but the IPAQ hasn't gone into bootloader mode, so nothing happens.

I think what I am missing is why we need these files (RUUClientdriver.dll, FUU.EXE etc) and what changes in each of the OS upgrades to require a different version. Any one know these sorts of answers?

Alan

[PaNa-S]

I found the file (http://rapidshare.com/files/17084671/WWE-hx2000_PPC03_downgrade.exe) and succeeded to downgrade to 2003.
I had to reset to bootloader mode (contacts+itask buttons+reset -> connect to cradle -> calender button*) and then run the hpRUU.exe from extracted directory (c:\ipaq\hx2000) and it works like a charm.

hope it helps. g'luck

(* contacts - 2nd from left, itask - 4th, calendar - 1st.)

[alan sh]

That seems to be doing something. I put it into bootloader mode and it's flashing. 66% through and the bar on the Ipaq agrees.

[plsmth]

Worked for me too! Thank you spring777. Now I can run PPC2003, WM5 or WM6 on my hx2795. This is such an awesome forum.