Help help me

[my android lg l70]

help me my android lg l70 is broken i rooted it and when i powered it down and whent to cut it back on later it was stuck on the screen that says metro PCS
adn it goes through and goes right back so i factory reset it and removed the root and factory reset it again and it worked but i went back and powered the phone down and it did it again so i reset it again and i am using it now but i fear it might do it again
Pls help me

 

[AMOCO]

You could re-flash the stock firmware;
http://androidforums.com/threads/metropcs-usa-kdz-ms323-firmware-mega-upload.891205/

 

[jabez]

None of the links work

 

[AMOCO]

None of the links work

Sorry,Look here:
http://www.lg-phones.org/official-stock-lg-l70-firmware-rom.html