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This page last modified 10/28/06
Download Chose the appropriate version for your Treo. If
you don't know what software version you have go back and read the
introduction.
Treo 680
| I do not have versions for the Treo
680 at this time. Shortly after the Treo 680 is released,
I will be happy to hack and post an overlay for them assuming
something hasn't majorly changed since the 650. This will
require someone to send me the overlay file as I do not intend
to get a 680 myself. Please use the
contact page to send me the overlay. |
| Treo Version |
Software Version |
Hack Overlay File |
|
Latest Versions: |
| Palm Unlocked GSM |
Treo680-?.??-CNG |
Not yet available |
| Cingular |
Treo680-?.??-ENA |
Not yet available |
Treo 650
Treo 600
Installation:
Note: When you install the .PRC file it will automatically be renamed to
it's original file name of Phone_enUS.prc. The hacked files started out as
Phone_enUS.prc and I've renamed them for the purpose of posting and keeping the
versions separate.
The Phone_enUS.PRC (overlay) file can be installed the
following ways:
| Option |
How to |
| 1 |
Browse to this page using your Treo's internal web browser
(Blazer.) Simply download the PRC to the phone and install. |
| 2 |
or...
From the palm desktop, install the PRC via hotsync as you would any other
application. |
| 3 |
or...
Copy this file to the SD card and use
FileZ
to copy it from the SD car to RAM. |
| Notes & Uninstall |
When you copy or install this file to RAM, the operating system will use this copy of the
file (in RAM) instead of the version in ROM.
This file does not have an icon and can not be copied using the operating
system's normal "copy" command since it's a resource and not an application
To remove the hack, simply delete the file from RAM using FileZ . When you do so the
original version in ROM will be used once again. |
What's is it?
The overlay is a resource file that the phone application uses that
among other things contains the menus that you see while running the phone
application. When you open up the phone application and press "Menu" it
loads the menus from the overlay file.
How does it work?
In simple terms the Cingular SIM contains and instruction (what I
assume to be a standard optional instruction) that commands the phone to lock
itself in 'automatic' network selection mode and 'disable/hide' manual network
selection. The phone application on the Treo honors this request and
(quite technically) hides & disables menu item #7303 which is the "Select
Network.." option under menu>options. These menus are contained in the
overlay file.
The overlay file, however, contains similar menus (which are hidden) for
presumably other types of networks, and those menus also contain the 'select
network..' option under a different menu item number. One of those is
#1306.
Using a hex editor, I've changed 1C8B to 051A (7307 to 1306 in decimal.) This way when
the phone application attempts to hide 7307, the menu item simply isn't there.
Instead 1306 is in it's place which isn't restricted. So when you select
"Select network" you're selecting the 1306 command which so far appears to do
the exact same function.
http://discussion.treocentral.com/showthread.php?p=758875
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