Full backup before flash.

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I'm an extremely paranoid person when it comes to risky situations, i use SD android builds because there isnt any risk on the phone, but i want to move to NAND, however i read many times that NAND flashes could brick my phone (it already seems like a reallly complicated process in itself), so is there a way where i could start the expirementation with NAND with ANY danger on my phone through backing it up?

You can back up your sd build by simply connecting your phone to your pc while in Windows Mobile, and dragging your sd build folder from your storage card to your desktop of your pc.

As for backing up WinMo, there are several backup programs available, but none of them will back up everything totally. But you will lose WinMo by flashing NAND Android anyway, so backing up Windows shouldn't be much of a concern to you, right?

i dont care about the SD builds or Win Mo, its about the phones bootabilty, basically, i want to make it 110% brick proof, is that possible? (because im bascially a noob)

The only way to limit the chances of a brick is doing the steps as they are in the tutorial.....which is clearly outlined

http://forum.xda-developers.com/showthread.php?t=893948

but is there still a chance of having it brickin up on me?

I think theres always a slight chance (maybe 1%) lol but seriously i highly doubt you'll brick your phone. many ppl scream ahh my phone is bricked because the rom doesnt start.....the fact the phone even turns on shows its not bricked. if the worst comes to the worst most ppl have to reflash windows mobile and start from the beginning

so the probability of me having to return the phone to the shop is nearly zero?

more or less, yes. if you follow the guides provided on rom threads, then your pretty safe. just have a look at the link posted above so you know what not to do, then happy flashing