Somebody kindly assist, I have this keypad for my prepaid meter, I tried to check if my meter has been updated using the code 1844 6744 0738 4377 2416, it only displays "accepted", not 1 or 2 values as per instructions found on the internet.
1. How do I check current version?
2. How do I get the codes to upgrade if not upgraded?
1. How do I check current version?
2. How do I get the codes to upgrade if not upgraded?