please take a look your's threads in YESSIM https://forum.gsmhosting.com/vbb/f498/sagem-my419x-setting-577707/ https://forum.gsmhosting.com/vbb/f498/lg-u310-setting-573805/
already answered from YESSIM Support,
we need full necessary info. for your's problem, then we able to help you
which setting you're used,
which firmware you're used etc.
Brother i hope you're understand, please post here all info.
thanks very much