Hi im on system menu 4.1u and last i checked that is the last system menu where you could have bootmii installed on bootv2. I was wondering if i could still update to 4.3u w/o having to update to bootv4. ? If so is it safe? or should i just stick with 4.1u for bootmii installed as bootv2? Im asking cause i would like to be on 4.3u, but if it requires me to loose my full brick protection then ill just stick with what i have.