PC10IMG.zip update method - HTC Vision Radio's

This guide was taken from forum.xda-developers.com Credits to joemm for this guide. I put the guide in my blog, so that anybody who search for HTC phones can find it easily. There will be some word that will be paraphrased, but  will retain their meaning so that, there's no false information being given to you.

WARNING: FLASHING RADIOS CAN BE DANGEROUS. DO NOT DO ANYTHING TO YOUR PHONE THAT YOU DO NOT TOTALLY UNDERSTAND. REMEMBER TO RESEARCH FIRST. ALL THE DOWNLOADS HERE HAVE BEEN TESTED TO WORK. I AM NOT RESPONSIBLE IF YOU TRANSFORM YOUR HTC VISION INTO A BRICK.- joemm

For your information, The andriod .txt files this PC10IMG.zip already set to superCID 11111111.

In rare cases where you received a CID(Carrier IDentification) error while flashing PC10IMG.zip to your HTC Phone, try setting your CID to superCID 11111111 via GFree. How? Click HERE. As mentioned before, it's a rare cases for you to received such error.

If no error occured, you can follow the steps below :
1) Download the desired radio file.
2) Rename the file to PC10IMG

IMPORTANT NOTE:
You must rename the downloaded radio file name to PC10IMG in order for it to work. Because the file that you will download will not be named as PC10IMG to keep you out of confusion. :). So, after download the desired Radio File, name it into PC10IMG. 

3) Place the PC10IMG.zip radio file on the root of you SD card. Where is the root? Click HERE.
4) Switch off your phone.
5) Hold the volume button down and press power on.
6) The phone will boot into Hboot then Bootloader, It should see the PC10IMG.zip and ask if you want to apply the zip.
7) Use the volume up button to select "yes" if not mistaken, there should be a legend there stating which button for which function.
8) Once its done flashing, reboot the phone and you should have a new radio.

IMPORTANT: Remember to remove or rename the PC10IMG.zip from the root of your sd card when finished, because if for some reason you need to get into recovery from bootloader, you will not be able to because it will see the PC10IMG.zip file and want to update instead.

NOTE: The above mentioned instructions is the only way to flash the PC10IMG radio files. You can not flash the PC10IMG radio files in ClockWorkMod Recovery like a ROM, it will not work.

RIL FILE LIBRARIES (Want to know more about Ril File? Click HERE) :
If you are interested in matching the ril file libraries you can GO HERE TO RMK40's THREAD, and download his Radio to RIL Automatcher. This will automatically detect which radio you are running and match the correct ril library for it and install it too. (thanks to pfak and rmk40 for their work). Please post all ril related issues in RMK40's thread. Remember don't make changes to your phone unless you know what those changes will do and also how to revert back.