Changing ROM in Dell Venue 7 Wifi

You can root Dell Venue 7 and put some custom roms on it (if there are any). But I think, best you can do is root the phone and play with it.

Root:

1. Download One Click Root. Install One Click Root onto your PC or Mac.


2. Connect your device to computer by a standard USB cable.


3. Enable USB Debugging.


4. Run one click root.

Custom Roms with custom recoveries: (Read EDIT below)

Note: Sadly it is a Intel-based phone with less popularity, it doesn't have enough research or tools provided by developers to try out cool roms.

Here is the link to custom roms & recoveries for venue, you can try them

(I've doubt if they will work for Venue 7):

http://forum.xda-developers.com/wiki/Dell_Venue/ROMs

EDIT: Pointed out by Andy Yan, that custom roms provided in above links are for the original Venue (phone) released back in the days of Android 2.2