General information Android devices
- How to check the Heartbeat tasks?
- 9220 - Hardware presentation
- 9220 - How to remove the battery?
- 9220 - How to change /add a paper roll?
- 9220 - How to connect to LAN?
- 5310 - How to place the SIM card?
- 9220 - How to place the SIM card?
- 9220 - Different payment methods
- How to put a 9220 on developer mode ?
- 9220 - How to recharge the terminal?
- 9220 - How to turn the terminal on?