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DOWNLOAD: Make the extended ROM visible on your HTC Himalaya
Posted by Arne Hess - on Wednesday, 19.11.03 - 15:20:27 CET under 11 - Tips and Tutorials - Viewed 35180x
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If you own the PPCW.Net i-Mate Phone Edition, the O2 xda II or the MDA II you might have noticed that you don't have the full ROM visible/available. Well, that's because HTC protects some parts of the ROM to store the bonus software there you get installed automatically after a hardreset.
However, not the complete ROM space is used there and you might want to use it to store other installation files there also.
Also this gives you the opportunity to cancel the initial installation progress of all bonus software after a hardreset and allows you to decide which applications you want to get installed later just by selecting the cab files by yourself.

In fact it's just a registry key you have to change but here is a more convenient way to do it by installing this small tool called "PPCW.Net Extended_ROM_viewer" on your Himalaya which changes the Registry settings for you.

  • Download the zip file from below
  • Extract the cab file to your PC
  • Copy it to your Phone Edition device
  • Run it from File Explorer on your Phone Edition device
  • Make a softreset
  • Open your File Explorer again and you will find in the root a directory called "Extended_ROM"

Disable the hack by hand:

  • "Go to "Hkey_LOCAL_MACHINESYSTEMSStorageManagerProfilesTRUEFFS_DOC"
  • "MountFlags" to be set to "1"

Enabling the hack by hand:

  • Go to "Hkey_LOCAL_MACHINESYSTEMSStorageManagerProfilesTRUEFFS_DOC"
  • "MountFlags" to be set to "0"

WARNING: Don't delete or change any existing files you see there because these files are used after a hardreset. Any changes you make there might screw your HTC Himalaya, therefore use this part of your storage carefully! Neither PPCW.Net not anybody else is responsible for any damages!
Only run this cab file on English HTC Himalaya devices such as the PPCW.Net i-Mate Phone Edition, O2 xda II or T-Mobile MDA II.

Cheers ~ Arne

Related Links: [Download Here]


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Posted by Joe Olson on 19.11.03 - 20:25:28

Scroll down to the second to last screenshot on this page and read the accompanying text:

Looks like the XDA II has a LOT more stuff that installs nativly after a hard reset than the i-Mate.  Of course most of it is specific to the O2 network.  But see what he did about changing the .exe to .exx to "prevent the auto install before my hard reset. This allowed me to double tap on the individual CAB files and only install the applications I wished."

Very interesting.


Posted by Arne Hess on 19.11.03 - 20:34:05

Everything you see on the Tekguru shot and you don't see here (except the "msmsgs8.CAB") is O2 related like O2 Active User Interface, ClearVue (which comes with the O2 xda II but with no i-Mate), which is for the GPRS settings, etc...

However, the i-Mate contains the most important apps like Camera and MMS while you can buy the rest in addition or even get better 3rd party apps like V2R's Caller2Picture instead of IA's Caller ID which annoys with this pop-up icon which also Tekguru described!

Posted by arebelspy on 20.11.03 - 00:03:24

Hmm, my i-Mate has different stuff in its extended ROM than yours...

Screenshots to follow.

Bah, stupid tripod. To see it go to then when that loads cut and paste to the end of that (into the address bar after the URL) extended_rom.jpg and hit enter. Then you should be able to see it. I think. -arebelspy

Posted by Arne Hess on 20.11.03 - 11:32:53

Hehehe... Sometimes I'm such a geek... ;-)

Yesterday evening I've tried - while I was on the couch - what happens if I reinstall the cab files from the extended ROM again and for sure it shot my i-Mate (no, not destroyed but screwed...) so it was a good time to hardreset it again.

However, before I did that I've modified the "Config" text file from above which defines which of the cab files have to be installed after a hardreset and here we are - I've deleted the one or the other application from that list and that one wasn't installed anymore after a hardreset! :-)

This brings me to the next thought to add more and different 3rd party apps (I'm always installing first on every Pocket PC) to that list to get it installed every time I perform a hardreset. Well, in fact this would reduces the work to make a hard reseted Pocket PC the same as before. However, if you do a mistake in that config file, it really could blow away your device so please be careful if you start to edit there anything!!!

Posted by Buizerd on 20.11.03 - 09:00:55

Arne, what is that nifty battery icon in the top of your display? I want that too!

Posted by Arne Hess on 20.11.03 - 10:13:42

@Buizerd: That's Spb's GPRS Monitor.

Posted by Tim on 20.11.03 - 12:48:47


Like you I am particularly keen to use V2R's Caller2Picture INSTEAD OF IA's Caller ID. I would therefore like to stop IA's Caller ID installing after a Hard Reset. Now I know you have basically been able to do that by the above but I have got a little lost along the way. If you have the time could you please clarify the steps I need to follow to stop IA's Caller ID (as well as other programs like the Arabic Utilities) installign after a Hard reset. I am using an IMate purchased In Dubai.

Thanks ~ Tim

Posted by Tim on 20.11.03 - 12:52:08


Sorry about my spelling mistake in your name!

Posted by Alman on 03.12.03 - 17:44:08

Arne,  could you kindly let me know if such a software exists for other PPC other than the i-Mate?  I would like to do the same for PPC 2002

Posted by Arne Hess on 03.12.03 - 18:01:42

@Alman: No, it doesn't because no other Pocket PC has this feature today.

As far as I know the Himalaya is the first Pocket PC which includes this hidden ROM part.

Posted by Alman on 04.12.03 - 15:00:29

@ Arne:  so is there a software that will allow me to move *.exe files from the PPC either from the desktop via ActiveSynch or directly on the PPC

Posted by hyde on 11.12.03 - 14:21:47

I enable the ext-rom view.

But i can't del and add file into it.

It's said read only.

Any idea how to go about it?

Posted by deckard on 13.12.03 - 21:36:15

I can't change anything either.

It's write protected. :-(

I have a german MDA II from T-Mobile.

Who can help...

Posted by richard on 16.12.03 - 15:36:24

hi   is there a software for I mate  that let  me

Comment moved to the Forum here.

Posted by SPLSH on 19.12.03 - 16:53:35

Has any of you been able to change the content of this Extended ROM, I'd like to put all my own stuff in there so I don't have to install the apps when I do a hard reset...

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