Thats a PRL, not an hboot, you need to flash it with QPST Configuration.
Instructions from Leslie Ann,
"Fix everything by turning your phone into an Evo 3d" thread
PRL (optional) is a bit more in depth.
This seems to be a pain in the neck for most, however posting the diag drivers above may help. If you can't get it, don't stress as this is optional and usually has the least effect of all of these.
1. Disable debugging on your device (settings, developer options) and connect it to your computer
2. Install QPST
3. Open "QPST Configuration" in the "QPST" folder under Programs
4. Dial ##3424#
5. Click on the “Ports” tab and “Add a new port”, select it based on what your phone connected as. You should find it easily enough.
6. In the top menu, select “Start Clients” and open Service Programming.
7. Select your device
8. Select "Read from Phone". I will ask for your MSL code. If you don't have it, search the Play Store for MSL Reader, it should be the first result. It will tell you your MSL).
9. Go to the "Roam" tab
10. Click Browse and find your PRL file (you will need to unzip it).
11. Select Write to phone, once it reboots, you are are done. Sometimes this generates an error as it finishes, ignore it, it still worked (you can verify in "about phone".