Maybe will re-rate the score afterwards by observing anti-scratch performance of the glass cover.
This afternoon received the digitizer, now already replaced the bad digitizer with the receved one by myself.
The touch screen is back to work again.
Days ago, called HTC technical support line, they would like to charge me about $180-270 for the replacement.
Now, I only spend $30 to repair the phone.
Reminders to other potential DIYer on the same issue, when replacing the digitizer or + LCD, you don't need to desamble every parts of the phone, followng will be the brief procedures at least work well from my side.(you can refer to some video related to Inspire digitizer replacement).
1. Remove the battery cover on the side and the bottom small cover on the back
2. Remove the flash light module
3. unscroll the 5 screw, push up and remove the back cover.
4. Remove the small plastic cover near the SIM and TF slot (3 screws).
5. Remove the tapes covering the LCD FPC connector, and lift the connector.
6. Lift the touch screen connector lock from the small window, and loose the connection from the LCD module.
7. Use hot hair blower to heat up the rims on the front screen side for a while.
8. Use thin harder name card or very thin plastic sheet slip to slightly lift up around the touch screen and LCD module along the 4 sides of the front glass maybe while still have the hot hair blow heat along the rim. (slightly, patiently and carefully)
9. replace the new one touch screen.