[Thunderbolt General] anita_russell:
UPDATE: Boost Flash Guide (Work In Progress)

Because so many people have PM'd me, I decided to post what I currently have, and will edit as people let me know what does or doesn't work. This is actually a collection of screenshots with my settings from QPST and CDMA Workshop, as well as my phone EPST settings. It should be easy enough to follow.

Disclaimer, Thanks, Credits, Etc....

I'm not responsible if you brick your phone, get kicked off your service, get a headache trying to flash your phone, etc.

Most of this work was originally done by the OPs of the following two threads (as far as I know, anyway), and a HUGE thanks to both of them.

http://www.cricketusers.com/verizon...-htc-thunderbolt-cricket-wireless-almost.html

Thanks to Oriax123

http://xdaforums.com/showthread.php?t=1182260

Thanks to Eljean1

Ok...here's what to do:

1. Download the stuff you'll need...

QPST

CDMA Workshop

the Legal Flash Guide in Post 1 of the following thread: http://xdaforums.com/showthread.php?t=1182260

ThunderboltBoostSettings.zip, found here: http://dl.dropbox.com/u/37958254/ThunderboltBoostSettings.zip

2. Unzip the ThunderboltBoostSettings.zip file. Inside there are several folders and the HTC drivers you will need.

3. Enable DIAG on your TB (##3424# - Reboot to Diag+Modem). If you don't already have your 9k modem installed, the HTC drivers should allow you to update drivers. In Device Management, you should see two unknown High Tech Computer devices. The second one is for your 9k modem. Update driver, pick from a list of drivers, select all devices, and use the USB Modem under HTC Corporation. You should now see the modem listed under Modems.

4. Follow the instructions in the CricketUsers thread, Post 6 to get your MEID working on Boost.

5. Next follow the instructions in the "How to: Basic" portion of post 1 in the same thread. These 5 steps are very important! I used PRL 01115, but whatever works best in your area.

6. Your Phone (Which should be recognized in QPST as a SURF/MSM 7630) should now have the correct MEID. Your modem should have ESN 00000000. Don't worry about the rest.

7. Now use the Legal Flash Guide to obtain your donor phone information. Skip the steps about reading memory to find MEID locations. We did this in step 4.

8. Stop once you get to Step 10 in the Legal Flash Guide. Using the folders included in the ThunderboltBoostSettings folder you extracted, use your donor settings and make sure that everything has been transfered over to your TB. In the screenshots, I highlighted things I had to change manually (and of course removed my personal info). Some of them may have changed when the NAMs were written in CDMA workshop. Each folder corresponds to the Program, Radio, and Nam I got them from on my device.

Final note: What finally kicked my 3G on was changing the User Profiles in M.IP in QPST to read 0 on my phone and 1 on my modem. After that I rewrote the HA/AAA passwords on both active profiles, both radios, then rebooted my phone.

I will review more tomorrow and update if necessary.

Ok so here's the bottom line: Got my TB fully flashed to Boost Mobile after weeks of trial and error. I have talk, text, data at 3G speeds (around 1300kbps download and 760kbps upload), MMS, and simultaneous voice and data with any SIM installed. I assume this means that it's also possible to flash the TB to Sprint. I'm not a developer, so I am doing a lot of guessing...but there are no other posts with instructions on how to flash the TB to either Sprint or Boost, at least none that I've found. It'd be awesome for XDA to have it first. If any developers/mods would like to get a tutorial up on this, PM me and I'll share the info I have.