A lot of people have experienced the mesbox.exe error on gps for china. Here it the fix I found that worked on my gps.

In the sys.txt file under debug add these 3 lines of code.
cache="4194304"
max_memory=138412032
reserve_memory=2097152

Let me know if this helps
Deputy

Didn't work for me
XGody
Version: 2.0.15.06.18
RAM: 97.8/128Mb
Flash: 5.34/8Gb

Update I forgot to include I change the primo version to 9.6.2.209584