I like a number of you have tried to get the HSDPA working on the Treo 750v. I believe I have stumbled into the solution.
Here is the good news update!! URPREY has made a .cab file that automates the install of the hack below AND will host it for downloads.
YEAH URPREY!!!
http://urprey.com/treo/750hsdpahackv2.cab
So the rest of this is interesting but not required. Just use the download above.
First, go to a German site called
fit4communication anytime at
http://www.fit4cat.de/thread.php?threadid=91. Down load a program called "fit4cat Hermes Tweaker" (Windows loader version is what I used). Unzip the file and install it to your Treo 750v.
Second, go to XDA Developers at
http://wiki.xda-developers.com/index...e=Hermes_Utils and download SetHSDPAv2.zip. Unzip the file and copy to the mobile device windows directory.
Third, on your Treo 750v start the "fit4cat" program. Scroll done and click the phone tab, select "enable" for HSDPA. Click "File" option on the bottom of the screen, selecting the save before exit option.
The Treo 750v will do a soft reboot.
Then go to DSLREPORTS.com/mspeed. I consistently get 800+.
There is a bit of hitch though. I have not been able to get my DUN working since I tweeked the Treo. But I believe I can resolve it on my portable vs my desktop.
I attached both files. Good luck