Normally, we upgrade HTC HD2 Windows Mobile ROM using RUU with USB cable. It is faster than using SD card method. Then why do we need to upgrade HTC HD2 ROM through SD card?
- Windows Mobile 6.5 ROM is corrupted
- Remove HSPL3 ~ SPL-2.08.HSPL
You cannot upgrade HTC HD2 Windows Mobile ROM using RUU when you cannot even connect through Windows Mobile Device Center or ActiveSync. And the only way to remove HSPL is to use SD card upgrade ROM method with official HTC HD2 stock ROM.
ROM Upgrade for HTC HD2… It will be a little bit scary if you are upgrading Windows Mobile ROM for the first time. Fear no more. Here is a video guide to help you in step by step. This is the official ROM upgrade guide. It needs a PC and USB cable that connect to your phone.
Prerequisites
- Windows Mobile Device Center installed on Windows Vista / Windows 7 or
- ActiveSync installed on Windows XP
- New HTC HD2 ROM
- Phone battery is at least 50%
Official HTC HD2 ROM Version 3.14 Upgrade has yet come to HTC SEA. But I don’t care much as I am using custom Windows Mobile ROM ~ Cookie Energy ROM nowadays. And playing with Android builds most of the time. However, some of you might want to check out the latest HTC HD2 ROM if you are one of them who did not flash hardSPL yet. There are several HTC HD2 3.14 builds like Norway: 3.14.409.2, Spain: 3.14.412.2, Portugal: 3.14.410.2, France: 3.14.406.2, Sweden: 3.14.413.2, English: 3.14.405.2, Hong Kong:3.14.831.3… Note – This update is not intended for use on T-Mobile(US) HTC HD2.
HTC Touch Diamond2 was the phone that I plan to buy. Until I got my hand on HTC HD2. Hey, HTC Touch Diamond2 users… You all are in lucky mode now because HTC released a ROM upgrade to all of you. Your HTC Touch Diamond2 will have HTC Sense 2.5 just like HTC HD2.
Improved Functions:
This ROM Upgrade will let you experience with intuitive HTC Sense interface. Create a perfect phone for you by putting shortcuts to the most important people, web sites, or most used applications right on the home screen. Prioritize your essentials by arranging the tabs of the key phone features to suit your needs.
ROM version:
France:2.53.406.4; Nordic:2.53.409.3; WWE:2.53.405.5; Italy:2.53.408.3; Protugal:2.53.410.3; Denmark:2.53.403.5; Nederland:2.53.404.3; Germany:2.53.407.6; Spain:2.53.412.3; Greek:2.53.482.4; Sweden:2.53.413.3
Download HTC Touch Diamond2 ROM Version 2.53.405.5 Upgrade here.
Yes… I have been waited for a new ROM for my HTC HD2. And here is it ~ ROM version 1.66.707.1. This ROM should fix all of your SMS messaging cannot send out issue (Stuck at outbox). Too bad it is still not Microsoft Windows Mobile 6.5.3 or 6.6. But I can wait for it just like waiting for Windows Mobile 7. 
ROM Version 1.66.707.1 Upgrade for HTC HD2
