Lightmap dirty/noise on android

Hello all,
I am having some kind of noisiness or dirtiness in lightmap when publish my game to mobile, as you can see in the editor there is no issue,
Quality settings is set to Beautiful
how can I solve this issue?
Unity 5.0.1 P2
Thanks.
Khaled

bump

Submit a bug report and a small repro project.

Seems like lightmap compression. Try to disable it.