How to solve the slow network speed of 5g mobile phone

1. The mobile phone does not support or has no card slot 1.

-If the customized mobile phone is mobile or telecom, you can only log in to the 2G/3G network.

-The user did not insert Unicom card into the accessory card slot 1.

2. The Internet access function of mobile phone and number card is not turned on.

No. card: turn on the 4G Internet access function (SA service function is required for 5G dual-mode mobile phones);

Mobile phone: Apple: [Settings]-[Cellular Mobile Network]-[Cellular Mobile Data Option]-[Voice and Data]-Start 4G/5G; Android: [Settings]-[Mobile Network]-[Mobile Data]-Enable 4G/5G. The mobile phone terminal supports SA network service, and the terminal needs to start this function synchronously.

3. The network has no coverage or is weak.