bombax

I dont know which 16203 i installed , how can i know it? and i installed it because i wanted to play GTA V

hello , i have XBOX 360 RGH\JTAG SLIM and i updated my xbox 360 RGH to 16203 Dashoboard and after reboot my xbox always open the original dashboard xbox. now i cant open my freestyle and cant play games... i tried to install xexmenu on my xbox 360 via Horizon but when i connect HDD to xbox i dont see xexmenu in Demos folder... i need help plz.