just try this proxy server some need a promo / no load
m.facebook.com
h.facebook.com
proxy.com.facebook.com
free.facebook.com
freedata.com
b-m.facebook.com
no.facebook.com
mobile.facebook.com
nx.facebook.com
ntn.viber.com
nh.facebook.com
0.facebook.com
some of this don't work on some location or...