[HD2 Windows Mobile 6.5 ROM Development] AshMa:
Jason, first of all do you have an SD Card full of music files and if so are they all in one folder, or are they in different folders for each artist? Do you have a lot of other data such as documents and images on your SD card and or device?

We don't know what settings you've gone and changed, so how about the next time around, not changing anything after a flash and then trying Sense and a lot of the cooked in apps and see if there is any freezing.

Also did you follow each of the steps for flashing right down to the letter? I wrote this on another forum but these are all the steps I've taken below, to flash back and forth with my US T-Mobile HD2, now well over 20 times.

"HOW TO FLASH YOUR US T-MOBILE HD2 TO KUMAR’S ROM:

Please note that some of the below can be used for the International HD2, you will still need to research that you are using the correct versions of files for the international version. The below is my experience with the US T-Mobile HD2 and so I stand by the steps I’ve taken (have done this over a dozen times now). However, as always, you are responsible for your hardware and any changes you attempt to make and any outcome you experience.

First download the following files:

Kumar’s rom version of your choice: Just read the 1st and 2nd posts of his, and then select the version you want. Remember, you can change your mind and choose another version and or go back to your stock rom at any time. The files to download are on the 2nd post but you should also read the first post: http://xdaforums.com/showthread.php?t=652649

Task29: Which can be found in first post in this thread: http://xdaforums.com/showpost.php?p=5848003&postcount=19

HSPL2 for 1024LEO: You will find it at the bottom of the 1st post: http://xdaforums.com/showthread.php?p=5983094

And finally, should for some reason, you want to or need to go back to the stock rom, you can download that at the following link. The file you want (or rather the one I have downloaded and tested) is at the bottom of the 1st post and is version 2.10.1: http://xdaforums.com/showthread.php?t=655653

The above is all you need for flashing to Kumar’s rom and or back to the stock rom. However, there are other cabs you may want, after you flash to Kumar’s rom. Some of those types of cabs/apps, can be found at the bottom of post number 3: http://xdaforums.com/showthread.php?t=652649

Personally I prefer to go with Kumar’s Classic rom, rather than his Premium rom or Lite rom. My thinking is that I don’t want to keep on flashing because it takes me hours to install and set up my device after a flash/hard reset. Yet I do want to have the latest versions of apps and so I figure I’m better off with less cooked into the rom and just upgrading apps with new cabs as they become available.

NOW TO GET STARTED:

1. Make sure your device’s battery level is well over 50% charged or the flashing software will not allow you to continue.

2. Remove your SIM card from your device and set it aside until the flashing is completed.

3. Turn off your anti-virus apps, and as many other apps running on your PC. Also do not use your PC for anything, while your device is being flashed.

4. Connect your device via USB ActiveSync/Windows Mobile Device Center and then launch Task29 and follow the simple on-screen directions. Task29 will wipe out the current rom and all data on your device and for me this process took about 30 seconds. After it’s completed, your device will try to reboot and show the white and pink T-Mobile screen where it will remain.

5. Remove the battery from your device and then place it right back in. Then hold down the Volume Down rocker button and while doing so, press and release the red end call button. Soon as your screen lights up, release the volume button and you’ve now entered the devices boot loader and should see a rainbow colored screen.

6. Connect your device to your PC again and then launch HSPL 1024 and follow the simple on-screen directions. When you get to the and again all the while, no anti-virus on and no running apps or working on your PC. When you get to the “Please select your HSPL version to install” screen (VERY IMPORTANT); use the drop down menu and select 2.08.HSPL. VERY IMPORTANT!!! This will basically unlock your phone so that you are free to flash. Note that running this again (after flashing back to stock the rom) and selecting the other option 2.08.000 rather than the 2.0.08HSPL, would lock your phone back up, just as when you purchased it (in other words, no warranty issues). This process should also be very quick and after it’s done, do the same thing again as in Step 5, in order to enter the boot loader again.

7. Now you are ready to flash. So while in the boot loader mode, connect to your PC again and now launch Kumar’s rom and follow the simple directions and just sit back and allow the flashing to start and complete (again on my PC, it took about 2 minutes). Once done, your device will boot up as if you just turned it on for the first time with the stock rom. Let it boot up and it will then warn you about the SIM card not being present. At that point, unplug the USB cable, take out the battery, insert your SIM card and then replace the battery but do not power on the device just yet. Now place your fingers over BOTH the Volume Up and Volume Down rocker buttons. Make sure they are both held down and keep them down. Now press and release the red end call button. You should then see your screen light up and then you can release the Volume buttons. Press the volume up button once or twice if needed and then your device should begin a hard reset. After it’s done, as per the on screen directions, press the volume button to complete the process and exit out. Now your device will boot up again as if for the first time and you are now ready to start using your flashed device. Just follow the start up screens for settings, just as you did when you powered on your device for the first time. ENJOY!!!!!

BTW’ should you want to go back to the stock T-Mobile rom for any reason (warranty, etc.), do the following (while keeping in line with all the same steps and rules above):

1. Connect to PC and run Task29.

2. Enter Boot Loader by same steps above and the then run HSPL 1024 and this time select the 2.08.000 option.

3. Enter Boot Loader again by the same steps above and then launch the T-Mobile rom that was downloaded above. After its done flashing and boots up, do a hard reset and then you’re all good to go, back to stock as if nothing had ever been flashed."