iphone 5C Help/Advice

I have iphone 5c with badly broken screen(asking for pin code) i bought as part of job lot in auction from imei on back cover I discover below information.

Tech support: EXPIRED
Warranty: EXPIRED
Find my iPhone: ON
iCLoud status*: CLEAN
Blacklist status**: CLEAN

Can I reflash the iphone to remove the pin, is any service available to get this phone running without pin as I do not want to replace screen if I cannot get phone to work.

Thank you.