Well, I'm not quite sure what to think. Is it possible to upgrade the bootloader after having used Ziphone (which incidentally I have done already)? Ziphone downgraded mine to 3.9 Now in some forums they've written it isn't possible, as it is a "permanent" downgrade and would require disassembly of the phone - hang on - why do I have to disasemble it if I didn't have to do so to downgrade it in the first place? Soem other people wrote that there's "Tons of software out there" that would upgrade the bootloader - haven't found any of that. Any advice on this issue would be much appreciated! cheers!