Truphone Hong Kong APN Settings for Oppo A59

Go to Settings, Dual SIM and Mobile Network
Select the SIM
Select Access Point Names (APN)

Press ➕ on right top

Name: Truphone
APN: truphone.com
APN type: default
Proxy:
Port:
Username:
Password:
Server:
MMSC:
MMS proxy:
MMS port:
MCC: (keep the default value set by phone)
MNC: (keep the default value set by phone)
Authentication type: NONE
APN protocol: IPv4
Bearer: Unspecified

Keep the default values set by Oppo device for all blank fields above.