- Use incorrect weight (please note: 1oz = 31.1g)
- Choose a wrong type
- Use imprecise diameter
- Drop the coin
- Ping the coin too frequently: the application may consider it as background noise if pinging too frequently.
Please follow them and you can avoid bad result for your genuine coins as much as possible!
- Choose from the catalog whenever possible
- Remeasure the coin if needed
- Ping 2~3 times