wanna share for this phone just temporarily unlock
a187 at&t lock
heres guide
just cut the sim as in piture and put it
in sim sucket not fully inserted

then after put the batterry
and turn it on it goes insert sim
so now type *2767*3855#
then do like this

then wait and it unlock now after rebboot
""note if phone turnn off or ned to change sim it will back to unlock..
'''so i teach the owner how to do if in case goes like that and give him the e2p code too and all fine

done