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HSDPA Hack
for the Treo 750
HSDPA Hack

HSDPA Hack for the Treo 750

Download and install this .CAB file to your Treo 750 to enable HSDPA data speeds:
Download: Treo750HSDPAhackV2.cab

To Install: Download and install the .cab.  Reset the Treo twice. See instructions below
To Uninstall: Go to Start>Settings>System>Remove Programs; and uninstall "viaTreoCetnral Treo 750 HSDPA Hack"

Credits:
CAB installer created by Uprey on Treocentral.com
     Origional source link: http://discussion.treocentral.com/showthread.php?p=1175147
Hack initially posted (zip file) by Mathos at xda-developers.com
     Original source link: ftp://xda:xda@ftp.xda-developers.com/Hermes/Tools_and_Programs/SetHSDPAv2.zip

Explination:
The Treo 750 shipped from Cingular without HSDPA enabled.  Currently it does plain UMTS without the HSDPA acceleration.  HSDPA is promised in an upgrade in the future in 2007.  In the mean time a hack has been supplied that enables HSDPA on the Treo 750.

Use it at your own risk!
There are no grantees to reliability and performance.  In fact there is a reason Palm and Cingular didn't ship with HSDPA enabled and it is probably because it's not 100% reliable or stable.  While there appears to be no obvious drawbacks to using HSDPA enabled by this hack, instability, battery drain, or network connection problems could be possible side effects.

Unlike the other hacks here, I take 0 credit for this one.  I am merely posting this out of convenience.  Otherwise it would remain buried in the forum thread.  All credit goes to the folks in the forum links to follow:

Install Instructions:

  1. Download the .cab file (wirelessly from this site, or download to your PC or MiniSD card)

  2. Run the .cab installer

  3. Reset the Treo 750 (press the reset button under the memory card slot cap)

  4. Allow it to boot all the way up.

  5. Reset the Treo 750 a second time.

  6. Wait at least 1-2 minutes.

  7. If you see the "U" (UMTS) icon on your Treo, then browse to http://dslreports.com/mspeed to test your download speed.  If you get over 384kbps, then HSDPA is enabled!

To verify files were installed:

  1. Run "File Explorer"

  2. Select "Menu" and make sure "Show All Files" is check marked

  3. Browse to "My Device/Windows" and verify the file SetHSDPA.exe is there

  4. Browse to "My Device/Windows/Startup" and verify SetHSDPA.lnk is there

Uninstall Instructions:

  1. Select "Start"

  2. Select "Settings"

  3. Select the "System" tab

  4. Select "Remove Programs"

  5. Uninstall "viaTreoCetnral Treo 750 HSDPA Hack"

  6. Reset the Treo 750 (press the reset button under the memory card slot cap)

To verify uninstall was successful:

  1. Run "File Explorer"

  2. Select "Menu" and make sure "Show All Files" is check marked

  3. Browse to "My Device/Windows" and verify the file SetHSDPA.exe is there

  4. Browse to "My Device/Windows/Startup" and verify SetHSDPA.lnk is there

 

JPVann offered the detailed install insturctions (of the manual install prior to the .cab installer) here:
HSDPA on Treo 750 Thread at TreoCentral.com