Have been googling for quite a few hours but can't seem to find what I'm looking for, hope someone can point me in the right direction....
I want to basically make a complete image of my phone before I make an changes to it so that I can restore it exactly as it is now. In the PC world I would use CloneZilla / ghost or similar. though I have used dd in the past and don't mind using it.
I am looking for a solution that will work on the following phones:
HTC Desire (not HD or S)
Sony Erikson X10 Mini Pro
In my searching I found mention of a tool called Nandroid, but as best as I could tell it seemed to only be for a G1 and required Root. I don't have root on either phone, so solutions offered requiring root are not helpful because (as I understand it) gaining root will wipe the data (at least some) I'm trying to back up.
I also found article about creating a GoldCard for a HTC Desire, is this what I need to do? there was no explanation on what a GoldCard was? It also didn't look like a particularly desirable method as It required wiping the memory card first and had no mention of how to restore if things go bad.
My objectives are as follows:
Upgrade the SE X10 mini (it's stuck on Android 1.6!) I know there is a 2.1 upgrade for it, but it's not available unless yo have a windows machine??? I only have Ubuntu + Mac. I'm not prepared to buy a windows licence just to upgrade an android phone (seems Odd!)
Try out Android 2.3 and 3.0 on the HTC Desire and the X10, understandably this is play, so I want to be able to go back quickly, especially on the X10 (wifes phone) as I will be in no end of trouble if I brick that and don't get it back by the morning :)
If successful with the first 2, then I can look at trying out dev releases and testing them (That is after all my day job) and hopefully being able to contribute. To do this I need to be able to load a release test it out and then roll back on the same night so Ideally I need a process that is quite quick or a bunch of shell commands I can script.
Hopefully someone can steer me on the right course....