A. Carefully punch out SIM from the Plastic cardholder.
B. Remove battery from your phone.
C. Place SIM into the phone’s SIM cardholder with the gold square facing down and positioned so the metallic face of the SIM is lined up with and touching the metal contacts on the phone.
D. Close the phone’s SIM cardholder until it clicks
E. Replace the battery and battery cover
F. Turn on your Phone
G. If installation is successful, "O2 Wireless", "H2O® UNLIMITED", "Locus", or "My Network" should be in the phone’s display
H. If "Insert SIM Card", "Check SIM", "SOS Only", or "Unregistered SIM" appears in the phone’s display, remove the SIM and re-insert as instructed above. If re-installation is unsuccessful, please email Customer Service at help@grinwireless.com or call (954) 353-0730.