Please first off all need
Defualt Apn
Example
Name : Smart
Apn : internet
Apn type : defualt
And save . hindi po siya mag work pag telstra apn ang gamit ninyo tired and tested ko na po yan defualt lang talaga .
And next step Copy Kindly my setting Tignan ninyo nalang sa ScreenShot ↓
Working obserbahan ko muna.
Ewan ko lang kung ubra. Try to go recovery mode wife mo Cache mag refresh yan then . after done reboot
Tapos more mobile networks then talkntext tapos Access point . Reset to defualt mo Para mag Refresh. Then may defualt apn kana then.
Dial
*#*#4636#*#*
Engineering mode
Phone information then copy this