Why can t the Android phone connect to 3G data?

If you swipe the system, it's still the same, it's a network problem.

1. It may be that where you are, the problem of weak data signal of Unicom. Try a different place with a good signal.

2. Turn off the phone, unplug the battery, remove the SIM card (Unicom 3G card), wipe it with alcohol, and then install it and try again.

3. If it is not resolved. It is recommended that you go to the Unicom business hall for consultation. Bring your phone, ID card, and go straight. I've had this before.

4. There is another possibility, that is, the problem of mobile phone cards, which can only be solved in the business hall.

Problem Analysis: Be.

Phone management. The software prohibits connecting data connections.

The number has not been processed with the carrier** package.

The signal is not good. Workaround:

Open the management software and turn on the data connection.

I hope you contact the network operator not necessarily all Android phones can connect to the 3G network, and now the 3G network in some places is still upgraded, and 3G is the network opened by the network operator, the two are different, Android is the running platform of the smartphone is the system, or check the mobile phone network frequency. Hope it can help you.

The 3G network signal only covers most of the area, so you may not be in the area!

If you have data on your mobile phone and cannot access the Internet, it is recommended that you troubleshoot the problem in the following ways: Check whether there is a network, and it is recommended that you use it in a place with a strong signal; Check whether there is still a credit in the account, if the balance is insufficient, you need to recharge and restart the phone; Confirm whether the parameters of the mobile phone have been set; Check whether the USIM card is inserted, if it has been inserted but still cannot be used, it is recommended that you go to the business hall to check whether the USIM card is faulty, or replace the card for testing; Check whether there is a problem with the mobile phone, it is recommended that you change the phone for testing; In case of traffic capping, it will also lead to the inability to access the Internet; The number has not been registered with the real name, and the real-name registration has not been completed within the time limit, and the service will be suspended; If you applied for a 4G** upgrade last month, it will take effect this month, and you will need to restart your phone before you can access the Internet. 2. If it is not the above situation, it is recommended that you contact the local Unicom customer service for consultation, and the actual situation is subject to the local policy.

If you have any questions, click here. Consultation.

Hello, according to the information you provided, if your mobile phone cannot access the Internet, it is recommended that you troubleshoot in the following ways:

Confirm whether there is a mesh bend, it is recommended that you can use it in a place with a strong signal;

Check whether there is still a phone bill in the account office, if the balance is insufficient, you need to recharge before you can use it;

Confirm whether the parameters of the mobile phone have been set;

Check whether the USIM card is inserted, if it has been inserted but still cannot be used, it is recommended that you go to the business hall to check whether the USIM card is faulty, or replace the card for testing;

Check whether there is a problem with the mobile phone, it is recommended that you change the phone for testing;

In case of traffic covering, the top of the shirt will also lead to the inability to access the Internet;

The number has not been registered with the real name, and the real-name registration has not been completed within the time limit, and the service will be suspended;

If the mobile phone cannot connect to the 3G network, it is recommended that you verify whether the device supports the 3G network, and if so, you can verify the following information:1Check to see if other devices can search for 3G network stuffiness.

2.Verify that the device's 3G network mode and the SIM card used match. Such as:

Your device supports China Unicom's 3G network mode, and you need to insert a China Unicom card to achieve 3G services. 3.If the 3G network signal is weak or does not roll quietly to cover the 3G network, the device will not be able to connect to the 3G network when it is shut down.

4.Try to change another SIM card.

The three domestic Tank Oak operators have 3G standard.

Mobile: TD-SCOMA

China Unicom: WCOMA

Telecommunications: CDMA2000

You see which standard your mobile phone supports, and you can use which mobile phone to prepare the mountain card.

The U.S. version has five versions of Note2 on the side, and only the V version is a three-net-all-eater.

What carrier is your SIM card? Usually Samsung is connected.

Are you sure your SIM card is a 3G card?

There are many reasons why the mobile phone can not access the Internet, first check whether the mobile phone card is in arrears, if not, check whether it is a problem with the mobile phone settings, eliminate the above problems or not, you can only take the mobile phone to the repair shop to check.

There are the following possibilities: 1. The mobile phone card is not a 3G card: If it is a 2G card, it is impossible to use the 3G network, please upgrade the mobile phone card.

2. The current signal is not good: you need to receive a 3G signal to use the 3G network, and you cannot use the 3G network without a 3G signal. 3. The 3G function is not turned on

Open your phone's settings - find the data network and turn it on - and then turn on the 3G switch button under Mobile data to use the 3G network.

(9) Use of access points: automatic.

3.Replace other mobile phones for trial, you can change the mobile phone card to other mobile phones, see if you can access the Internet normally, to determine whether it is a problem with the mobile phone or a problem with the card, if it is a problem with the card, then go to the business hall for testing, if it is a problem with the mobile phone, it may be the network function failure of the mobile phone, and you need to go to the repair point for detection and repair.

Base station issues. You can ask other people.

Sometimes the base station breaks. As a result, you can't get online.