I am wanting to upgrade my Z2 to a Z3, and was wondering if it would be possible to revert back to a Z2.

 

I read in another topic that a person was able to go from Z1 to Z2, and then back to Z1 without problems, however, they didn't state anything about the firmware being reverted to the Z1 again.

 

If I want to revert from the Z3 firmware, back to my original Z2 firmware, will that be possible? I wonder because if something goes wrong with the unit after upgrading to the Z3, I'd like to revert back to the Z2.

All you have to do to revert back to a previous version is install a HDD with the older model software.

 

Example, you buy a new drive and upgrade it with Z3 image. When you install it in your AVIC, the avic will update to the Z3. When you reinstall your old hard drive, the unit will downgrade back to the original version.