I have just made this French ROM for HP 614c. It is the first version. It could have planty of bugs. And also i don't speak French at all.
It is Windows Mobile 6.5.3 build 29022
If you want, you can get it here:
I will be glad If you write your impressions here.
I don't take any responsibility if you damage your device.
I have tested it on my device. It is working.
How to install it:
1. Backup all your data from PDA. All data would be erased.
2. Unrar the file FLASH.DIO form archive.
3. Place FLASH.DIO to the root of the SD card. It can be onlt regular microSD card. Cards bigger than 2GB (microSDHC) aren't supported.
4. Put microSD card into HP.
5. Hold voice recorder button + mute button and then press power button.
6. You will se SDloader label on screen.
7. Wait until device would be restarted into Windows Mobile.