Stuck in a bootloop how can i get out

[bartjunited]

I tried to install the 5.1.1 update and it didnt work as the bootloader it requires wouldnt flash in odin
since then i cannot boot into any roms
i am trying to get back to my stock s5 sm900f 5.0 rom
i just keep getting a boot loop of the black sansung screen and then reboots again

ive tried to flash the original stock rom and it completes but wont boot

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!1

 

[bartjunited]

please close this

ive managed to resolve it by booting into CWM, deleting cache and factory reset and then installed my stock s5 rom