written by cail • posted in How-To • 19,054 views 7 comments

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Sprint used to have very bad network. Now, AT&T is worse. Verizon and Sprint are the top good guys. What is even better? Sprint can use Verizon's data/voice network when its own signal is very poor~~

There are two outstanding posts on XDA forum which cover everything you need to let a Sprint HTC EVO 4G phone running purely on Verizon network! Very easy to do, and I did it within 30 minutes.

Here are the two posts you want to follow very carefully.
1. http://forum.xda-developers.com/showthread.php?t=697487
2. http://forum.xda-developers.com/showthread.php?t=696073

Below are screen captures of the swapping process I did.

My anti-virus program recognizes CDMA Workshop as a hacking tool and deletes it automatically. Thus, I have to disable it ...
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I actually didn't install "HTC Diag Drivers". After dialing ##3424# (the display on the phone shown above) and connecting the phone to my computer, all hardware were recognized! I installed HTC Sync before, and this PdaNet PC client, not sure which replaces the requirement of Diag Drivers.
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Now, the CDMA Wordshop demo. Click "Port".
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Mine was connected to COM5, not the COM6 said in the post.
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Click "Connect", and shows as "Disconnect" once "Connected to COM5 port successfully".
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Under "Security" tab, click "Read" and I saw 6 digital MSL code displayed in red marked area. To test it is the correct one, dial ##3282# and enter the Edit Mode. The phone asked me a password. I entered the MSL code. Bingooooo!
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Below are speed test I did in a place where both Sprint and Verizon have good signal.
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Up - Sprint; Below - Verizon
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Btw, I disabled the Data Roaming option during the tests
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Later, I went to a zone where obsolutely no AT&T signal. I notice that Verizon network has weak signal and I can make/receive calls. If I am using Sprint, it switches to the Roaming Mode! Since Sprint has better 3G speed, and switches to Verizon network smoothly, I am staying on the Sprint network!

How to switch back to Sprint? Update PRL in System Update.
To switch to Verizon again? Force the Alltel PRL.
Enjoy!

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