Okay, this is a long story but I'll try to make it short. I just lost/had stolen my vita on 3.6 (with a 64gb memory card - aah!). I have another 2 vitas (for my sons) which were/are activated with my psn account. So I had 3 activated ps vitas - one of which I don't have any more. I have another vita on the latest fw which I would like to activate - can i deactivate the vita I lost without deactivating my sons at the same time? Actually, does it make a difference to their vitas if they are decativated as they don't go on the internet and won't be updating anyway? I don't have a ps3 or ps4. Any advice appreciated!