oppo network code

A33f *#3988691#
A37f *#3988691#

for f1s there are two codes, if one fails try another

f1s *#3988691#
f1s..*#69188692#
A37.f1s ALL ....*#3988691#
F1 *#3982591#
F1+ *#3988012#
R5 *#3988341251#
OP FIND 5 *#392102191#
OPPO JOY *#302121691#
OPPO S7 *#39802121451#
OPPO NEW..A57 all *#3980612565046691#

now this is
master code *#3988691#