I just got it yesterday, i was happy, everythin ok. But i found a tweak on phonearena how to make ur camera better (4k , slow motion vid ). It needs root and TWRP.
I rooted my G2 , checked the root, everythin is OK. But when i try to go to recovery . or use flashify to install TWRP it says SECURE BOOT ( error or smthing like that )
Please help me guys