Mobile 4 G Special Card How to complain

ps: 10086's service attitude is super good, will ask your questions in detail, and general problems can be dealt with in a timely manner.

If there is a problem that cannot be solved by 10086 complaints, you can call China Mobile Service Quality Supervision **10080 to continue feedback.

2) Press the "2" SMS self-service mode, you will receive a text message sent by "10080", click the link, you can fill in the form through the opened page, and submit the complaint to reflect;

3) Press "9" to directly connect to the manual seat.

Make a complaint. PS: 10080 is China Mobile's service quality supervision**, which plays a role in supervising escalation complaints.

In summary, how to effectively complain about China Mobile? Don't be in a hurry when you encounter a problem, as long as you master the correct complaint method, you can get twice the result with half the effort and solve the problem quickly.

If you have an unstable or bad signal on your phone, it is recommended that you:

1.It may be that the signal coverage of your location is poor, and it is recommended that you restart your phone or try it in a different location.

3.If it doesn't work, please turn it off, take out the SIM card, and try to reinsert it.

4.Replace it with a different SIM card.

If the problem still exists after the above operation, it is recommended that you bring the purchase invoice, three-guarantee voucher and mobile phone to the local service center for testing by the engineer.

If your phone is slow to use mobile data, it is recommended to:

1.Check whether it is a 2G network or a weak network signal.

2.If it is a 4G or 3G network, or the network signal is full, it is recommended to turn off the mobile phone and restart it.

3.Check whether it is set to power saving mode or super power saving mode, and observe whether the same situation occurs after disabling it.

4.Try to change to another location, e.g. indoors, to the window.

5.If you only experience a slow Internet connection when using a certain software, it is recommended that you try to clear the software data. Operation:

Settings - Find "Application Manager" - (All) - Find the software - (Storage) - Clear data and clear cache (if you have important information, please back up beforehand).

6.Update your phone to the latest system version.

7.Try to change another SIM card.

If the problem persists after the above operation, please bring the purchase invoice, repair card and machine to the service center for inspection.

The 4G data speed of the mobile phone is related to the 4G signal strength and network stability of your current location, it is recommended that you move the location and direction to try, if it still does not work, please try another time period; You can also try to change the SIM card. If this will also happen when using the software, please back up your mobile phone data (**book, SMS, multi** files, etc.) and restore the factory settings.

If the problem persists, it is recommended that you bring the purchase invoice, repair card and mobile phone to the local Samsung service center for professional engineers to help you test.

I guess it's a card problem, and I'll go for another one.

Free replacement of 4G card is to encourage you to use mobile 4G to increase customer volume + seize the market.

What are the pitfalls of changing a 4G card for you?

I can't talk about the pitfalls, but the cost is really high!