How to check the shared power bank station can operate normally?

How to check  the shared power bank station can operate normally? 

Many customer feedback to us , how to check the power bank rental station whether can work normally ? now i tell you , 

just checking the LED lights on the back of the cabinet can identify problems and solutions. The following are  guidelines for testing.

1 , When the LED light flashes 1 time , it is the network initialization, and it can be done after the initialization is completed. 

2 , When the LED light flashes 2 times repeatedly, it means that the SIM card has failed to be read. Please shut down, check the SIM card, insert the SIM card firmly, and turn it on again. If it still remains unchanged, please contact the manufacturer. 

3 , When the LED light flashes 3 times repeatedly, the network is being registered, please wait for a while 

4 , when the LED light flashes repeatedly 4 times, the module is faulty, please restart. No change, please Lenovo to the manufacturer. 

5 , When the LED light flashes 5 times repeatedly, log in to the server until the LED is always on, indicating that the network is successful and can be used normally.

Contact  :  jack       

whatsapp  : +86 18820180076