You can install any version of jb you like, but it's worth sticking to your region. You will lose root, but can flash phillz kernel through stock recovery to regain, very simply. yellow triangle doesn't matter until you need to claim warranty. To remove, run triangleaway app from play store.
Sent from my GT-N7000 using XDA Premium 4 mobile app
Sony Xperia Z Ultra C6833
Stock .257 Unrooted
Samsung Galaxy Note GT-N7000, iPhone 3GS, HTC Touch Diamond, HTC Touch Pro, HTC Universal, Sony Ericsson P990i, boat load of nokia's for a long time.
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