Step 1. Press the F and 1 keys at the same time, then enter the password: 1 or 8559 or 6688
Step 2. Press the down arrow key once. Select 2. Communication and enter the password as in step 1
Step 3. Press the down arrow key twice. Select 1. LAN Parameters
Step 4. Press the down arrow key once. Select 4. PING. Here, press the green key.
Wait for the screen to display
WWW.GOOGLE.COM
PING OK
That means your device is connected to the internet and can make payments
If the ping result does not return OK, the device is having internet connection problems. Try restarting your internet router and then restarting your device.