Originally Posted by kocis_p

After installing the new rom will remain the data contacts, applications?

Need full wipe before installing the ROM, i.e. all data will be gone.

Originally Posted by kocis_p

After installing the new rom will remain the data contacts, applications?

Data in your SD will be untouched. It is highly recommended that you perform fullwipe before installing new ROMS to avoid bugs and other issues. Actually, its a MUST for many scenarios.

You contacts will be restored if you enable google to sync your contacts. SMS will not be retained, however, u can download "SMS backup and restore" in Google Store, its free.

Apps however, will be gone. Unless you've backed them up(i'd recommend titanium backup). For paid apps, don't worry, u can simply download them again from google store.

hi every one

i've come to share my experience with HTC desire HD a9191 ultimaty, i managed to root and downgrade from v.2.3.5 to 2.3.3 and great thanks to xda who tried their best to grand more and more new method to valuable clients as me. i tried many time finally, it work smoothly, i 'd like to air my deep and sincere thank to person who tried to create aahk for some wanting to root DHD phone.
all the best come to you all.