Will grevey sim work with iphone 4 Ios7?

I have iphone 4 updated to ios 7… Will gravey sim work with it?

For iOS 7 there's no
update on GEVEY so far.
And about iOS 6.1.4, its
only for iphone 5.iphone
4 and 4S users have
access to 6.1.3 only. You
can use GEVEY on iPhone
4 6.1.3 but honestly it
doesn't work smooth as
there's no official Gevey
for iphone4 ios6 and
above but still it works!
You should Preserve your
baseband (by tools like
redsn0w or Snowbreeze) in
order to use GEVEY unlock
otherwise the phone will
lock and you will have to
go for imei unlock.
*I would advice you to
preserve your baseband
using redsn0w and update
to ios6.1.2 because
6.1.3jailbreak is not
smooth.