Ok, I have now successfully reverted back to v2.5 of the ROM (last ROM I was using).
I thought it would just be flash .zip, clear cache and reboot.
My phone would just hang at the HTC white screen and not continue to boot.
After googling around and I found someone mentioned due to S-ON in hboot 1.5, it is necessary to manually flash boot.img.
So I unzipped boot.img from the v2.5 zip file.
Boot into fastboot then on PC
<code>fastboot flash boot boot.img</code>
Reboot the phone, then it bootted all the way through and works like before.
Light bulb comes on, let me try this for v3.1
Do the same thing flash zip and clear cache from recovery.
Get into bootloop problem that I've had.
Boot into fastboot and extract boot.imgfrom v3.1 zip file and then flash boot.img...
No dice, still stuck in boot loop!
So I had to flash back to v2.5 and repeat the process. I can now boot and in process of re-installing apps and restoring data.
Just wanted to share my progress with everyone.
That knowing that manually flashing boot.img may have something to do with solving issues the hboot 1.5 with s-on.
Thanks
Quote:
Originally Posted by OMJ
working on an update 
I always use adb to push new files, I'm not sure why the flashable file did not work.
sounds like you're doing everything right, I really have no exp flashing w/ 1.50, sorry I can't be more help....maybe one of the guys w/ 1.50 can help ya
you need to be in the folder where adb.exe resides....ie:
c:\sdk\tools
copy SystemUI.apk to that folder
adb shell mount /system
adb push SystemUI.apk /system/app
reboot |