If you don't have myGlobe Connect setting, let us create first.
APN: www.globe.com.ph
Proxy: 203.177.042.214
Port: 8080
MCC: 515
MNC: 02
Authentication Type: PAP
APN Type: default, supl
APN Protocol: IPv4
APN Roaming Protocol: IPv4
Then click Save, make it default by ticking/selecting your new APN. Done and Exit.
Then download OM 7.5 and install it using the above settings.