bootloader yn ung nag run bago mag start ang cp. mrn kc locked gaya ng mga unit natin kaya need ee unlock thru fastboot. gagamit ka ng pc. after mo ma unlock ung bootloader saka kna mag DL ng pang back up like CWM/TWRP tru pc at ee install via fastboot. pag my CWM/TWRP kna mag sawa knang mag install ng costum rom. at jn ka narin mag back up.