American version note5 Samsung how to use telecom 4G how to plug in the card without service

If there is no signal on your phone or an emergency call prompt is displayed on the screen, it is recommended:

2.If it is a dual-SIM phone, please check whether the SIM card is activated: Settings - SIM Manager - SIM1 SIM2 - Click the SIM card icon - slide to turn on (the operation mode may be slightly different for different models of mobile phones).

3.If there is still no signal, it is recommended to turn off the SIM card and remove it, wipe the SIM card chip with an eraser, and then reinstall it.

4.If it doesn't work, try to change to another location to rule out whether it is caused by poor signal coverage in your location.

5.Try to change the network mode to 3G or 2G (do not select the auto-connect mode). Note: Some machines do not support changing the network mode.

6.Try to change another SIM card.

7.Update your phone's system version: Settings - About Phone (About Device) - Manual Update Automatic Update (Software Update System Update - Update). Note: Please back up the data (contacts, messages, **, etc.) in your device before upgrading.

If there is still no signal or emergency call is displayed after the above operations, please bring the purchase receipt, warranty card and device to the Samsung service center for inspection.

According to your description, the mobile phone may not support the telecom card business, it is recommended to go to the business hall to pre-deposit the phone bill and use the mobile phone for free.

The Samsung Galaxy Note4 listed in Chinese mainland currently has 4 models, namely N9100, N9106W, N9108V, N9109W, which:

As the public version, Dual SIM Dual Standby supports 2G 3G 4G networks of China Mobile and China Unicom.

It is a Unicom 4G dual-SIM mobile phone, which supports Unicom 2G 3G 4G and mobile 2G networks.

It is a mobile 4G single-SIM mobile phone, which supports mobile 2G 3G 4G and China Unicom 2G network.

It is a 4G telecom dual-network dual-standby mobile phone, card slot 1 supports telecom 4G 3G 2G, and card slot 2 supports China Mobile and China Unicom 2G network; N9109W supports card 2 Internet access.

There are several reasons for this:

1. Airplane mode, turn it off. or the signal is weak, consult the operator.

2. Do not identify (such as mobile phones using telecom SIM cards) card slots loose, deformed and other poor contact phenomena. SIM card is out of order.

Obstruct. Software or system reasons. Hardware failure of the phone.

Solution] 1. Try to re-insert and unplug the mobile phone card. Try to change the geolocation.

2. Try to change to another mobile phone card. Back up your data (contacts, messages, **, etc.), factory reset attempt.

4. Wipe the contact point between the mobile phone card and the mobile phone (whether the SIM card is in poor contact) and try to replace a SIM card (whether the SIM card has been.

If the problem persists, please bring the purchase invoice, repair card and machine to the Samsung service center by an engineer.

Check the machine.

According to the BAI information you provide, if you refer to the mobile phone du "no service" can not be used, you can.

DAO to detect back in the following way:

1.Restart the phone (bai to allow the phone to search and register again)2Under the standby desktop - click on the application - Settings - Connect back - More network - Mobile network - Network operator - Search network - select the network operator supported by your SIM card.

3.Wipe the contact points between the mobile phone card and the mobile phone (whether it is a SIM card with poor contact) 4If the problem persists, please bring the purchase invoice, repair card and machine to the Samsung service center, and the engineer will check the machine.

It is recommended to try the following methods to solve the problem:

1. Shut down and restart to try it;

2. Take out the SIM card and reinsert it or replace it with a special SIM card;

3. It is more suitable for use after changing the network environment and time period, and you can also compare other mobile phones (using the same network) to see if this phenomenon exists.

If your phone cannot access the Internet with data data, it is recommended to perform the following steps:

1. Check whether the SIM card is enabled for GPRS Internet service or temporarily closed.

To use the mobile phone data Internet function, the ** card needs to activate the data data Internet service. You can contact the local network provider of the **card** card to open the data traffic Internet service, if the mobile phone is upgraded to the latest system version, it supports the use of G network mobile phone card for data traffic Internet access.

2. Check whether the "Mobile Data" switch is turned on.

Slide your finger down on the top curtain of the screen and turn the "Mobile Data" dot green.

3. Please try to replace it with another ** card.

4. You can also try again in a different time period or network environment.

5. Back up your phone's data (**book, SMS, **, etc.), restore your phone to factory settings, if the fault persists, it is recommended to send your phone to the nearest Samsung service center for testing and repair.

It may be that the arrears are down, if you rule this out, restore the factory settings and see.

Hello. According to your description. Recommended:

First, check whether the surrounding network signal is normal.

Second, if you are sure that it is not a problem with the card, then the mobile phone is faulty, go to the after-sales service of the mobile phone, ask the staff to give you a test, and you can quickly know the problem and solve it by debugging.

The Unicom version of N7102 I use Sometimes others can search for 3G signals, but I can't, but I'm depressed.