Requirements: PLEASE CLICK LIKE AND SHARE IT TO OTHERS )
SMART LTE SIM (Recommended prefixes 0949, 0928, 0947) or any will do.
Android phone, or iPhone, or SMART USB broadband, or pocket WIFI
First, register to LTE (space) 50 and send to 2200 and wait for the confirmation message.
Then, register to UNLISURF (space) 50 and send to 2200, this time do this even without load. You will receive a message service unavailable.
Connect to the internet, just take not that you must have the following starting IP's (10.140/155/159/181 for Luzon) and (10.141/159 for Visayas/Mindanao area).
Enter flight mode (AKA Airplane mode) 30 minutes or 1 hour before expiration to the LTE promo.
Disable the Airplane mode after one hour and try to connect to the internet
If its successful, congratulations your SIM is now bug with a very long expiration date, just make sure you have one of those LTE IP. off and on po yan .
Note: This might not work all the time, so do this at your own risk. But there are many accounts of successful bugging, for now this is the best trick to bug SMART LTE SIM for unlimited free internet.