Switching mobile Internet on Huawei and Honor smartphones

What to do if the smartphone does not see one or both SIM cards?

There are several reasons why a SIM card may not work. This may be related to the technical and software parts. Installing unofficial firmware is one of the main causes of failures in mobile communications. Installed elements may have been incorrectly rewritten or may not work with the selected phone model. To solve this you need to find a suitable version of the operating system.

Another reason is due to a broken SIM card tray. Most often, problems with connectors occur after a fall or mechanical failure. For example, after water or dust gets into the case. If the part is damaged, the smartphone will not accept any of the cards. A complete replacement of the part will be required. In rare cases, the problem can be resolved by cleaning the holder.

The last option that could cause a crash is a problem with the card itself. To check its functionality, we recommend inserting it into another phone. If the connection does not appear on another device, this automatically excludes a problem with the system and parts of the smartphone. The card is replaced at the nearest operator’s salon, after providing information about recent calls and passport data.

Basic settings

These settings affect all working SIM cards, and not each one separately:

• Mobile Internet: on/off. Allows data transfer through the operator’s mobile network.
• Dual 4G mode. At the same time, both SIM cards can work in 4G mode (fast Internet calls). But this quickly drains the phone battery.
• Mobile Internet during VoLTE calls (voice call transmission over high-speed LTE, or 4G networks). Those. During such a call, the Internet will work on the second SIM card. The option is supported by the Big Three operators in Russia: Megafon, MTS, Beeline.
• Data transfer – traffic limitation for each SIM card.
• Internet in roaming – to use or not. Be aware of super-expensive internet plans in other countries.
• Always receive MMS – receive these messages even when the Internet is turned off.
• Default calls. Select which SIM card (preferred) you will make calls from.
• Internet by default. Choose which SIM card you will use the Internet on.

What is special about smartphones with two SIM cards?

The fact is that if you want to connect to the Internet from a smartphone that has two SIM cards installed at once, then you need to select one specific card that will give access to the network through a telecom operator. Two cards on a smartphone cannot be connected to the Internet at the same time.

Moreover, one of the cards is always in 2G mode. This is normal behavior of a smartphone and there is no way to fix it. So, if there are two options for connecting to the Internet, that is, SIM cards, then you need to go to the settings of your smartphone and decide how exactly you want to access the global network.

Selecting a SIM card from which to make a call

The phone supports two SIM cards (function 2 DUOS), but the call is always made from one without prompting or confirmation (if the settings are default). By default, this feature is not installed; you have to manually select which SIM card to use by default before calling.

Or the option is to dig into the settings so that it automatically issues a request when you make a call… Well, you can make all calls from a specific SIM card without requests, if one has a certain tariff for calls… Although many use both, and they always determine yourself, in this version, it’s better to let the device provide a choice…

Go to the section:

Settings/SIM card manager/Voice call/Always ask

On the last right screen we see what request is executed when calling any contact

By the way, I found and tested a working version, without settings. In the call log, click on the caller’s avatar (only on the avatar and not the contact name and a window will open with a choice of SIM card…

Hybrid tray. simple and convenient

First, let’s tell you a little about the hybrid tray. It is essentially comfortable and small in size. Thanks to hybrid trays, manufacturers can make ultra-thin and waterproof phones.

But there is an option to encounter a number of problems. That’s it, trays sometimes get stuck, and it is impossible to get them out later. This is a very common problem in budget devices, but it occurs in flagships. If the SIM card is installed incorrectly, it will simply fall out. If you are wondering how to insert a SIM card

in Honor 9Lite, it means you are faced with the last problem.

To successfully install a SIM card, you first need to open the tray using the tool that comes with the phone. If it is difficult to reach, then try to press a little harder, but do not press very hard, otherwise you will simply break the tool and can destroy a fundamental element of the device.

Instructions for setting up SIM cards for calls on Huawei and similar Android devices.

How to enter the SMS center number

1. Open the Messages app.

   

2. Click Options, may look like three dots at the top right or center.

   

3. Select “Settings”.

   

4. Select “Advanced”. If there is no such item, go to the next step.

   

5. Select “SMS”.

   

6. Select “SMS Center”.

   

7. Enter the number that your telecom operator gave you and click “Save”/“Install”. The number depends on the telecom operator and region.

   

8. Turn off and on the device. Ready.

   

How to configure the selection of SIM cards for calls on Samsung

Which Huawei devices support esim

The first phones from Huawei to use the new eSIM technology:

• Huawei P40
• Huawei P40 Plus

However, Huawei P40 Pro does not support eSIM

Huawei P40 and P40 Pro come in several models:

1. with one (SIM eSIM)
2. two SIM cards (Nano SIM 1 NM Card or Nano SIM 2 eSIM)

If you have a Huawei phone with a single SIM card, the screen will still show two options: SIM 1 and SIM 2. e SIM is installed in the SIM 2 slot by default. If your Huawei phone is a dual SIM device SIM cards and a physical SIM card is already inserted into slot 2, SIM 2 will be disabled when adding an eSIM card. Installing or removing SIM 2 will not affect eSIM services.

eSIM technology is also presented on the Huawei WATCH 2 smart watch.

List of all devices supporting eSIM technology

Is it possible to switch between maps for the Internet and how

If the user decides to switch to a more profitable mobile tariff, or he simply did not have time to top up one of these accounts, and he urgently needs to access the network, it is worth taking into account the instructions below for switching between SIM cards.

We are talking about the following step-by-step algorithm:

1. Open the “Settings” menu.
2. Select the “SIM cards and mobile networks” section.
3. In the list of numbered SIM cards in the “Internet” line, select the number of the desired operator.
4. Next, in the “Mobile Internet” line, click the “Enable” icon

   Thus, you can switch between cards to access the Internet from the desired SIM card.

It is possible that the user lives in an area where the connection of one mobile operator works better than another. In this case, a smartphone with a Duos SIM slot can be a real salvation. The main thing is to decide in time which SIM card to make calls and access the Internet, since accidentally using the wrong operator can cost you a pretty penny. Well, we have already told you how to switch, and in this regard there should not be any special difficulties.

SMS center settings

As for the SMS receiving center options, the situation is as follows: each manufacturer implements access to these parameters in its own way — for example, in the latest OneUI 2.0 interface from Samsung, it is organized through the parameters of the stock application for receiving text messages.

Analysis of all possible combinations deserves a separate article, so we’ll focus on Pixel smartphones.

1. To open the SMS center options, launch the application for making calls and enter the code in it *#*#4636#*#*
   .

   

   The verification utility window appears. Select the item “Phone information”
   .



2. Scroll the list of parameters to the very bottom — there should be a block with the line “SMSC”
   . Look at its contents — if it is empty or it contains the words “update error”, this means that there is no way to access SMS.



3. To solve this problem, manually enter the correct number, then click «Update»
   and reboot your device.



Setting this parameter in other shells follows a similar algorithm, only the method of gaining access to it differs.

We told you about setting up SMS on your Android phone. As you can see, everything is quite simple and clear.

Regular SIM card instead of micro-sim or nano-sim

It often happens that the user has a standard SIM card on hand, but the mobile device supports another type, for example, micro-SIM. In this case, it is much preferable and safer to contact a service center, where they will quickly and, as a rule, change it for free to another type of SIM card upon request.

If it is not possible to contact a service center, for example, you urgently need to change the type of SIM card, then the user can independently cut the SIM card with sharp scissors. Thus, you can turn a regular SIM card into a different type. In addition, micro-SIM can be easily transformed into nano-SIM using scissors.

It is worth keeping in mind that such manipulations do not always end in success. If during the experiment the SIM card was damaged (for example, if the contacts were damaged), you will have to contact the customer service center of the mobile operator. Therefore, it is worth considering all the risks before carrying out the procedure.

Data transfer

Here we can configure Internet use for each SIM card separately, depending on your tariff plan. Go to Settings > SIM cards and mobile networks > Data.

Turn on “Traffic Control” and go to the “Tariff Plan” settings:

• Traffic limit — set a monthly traffic limit. For example, for me it is 2GB/month.
• If exceeded, notify and turn off the Internet or simply notify.
• Warning threshold — when I see a warning — at 80%, i.e. after 1.6GB of used traffic package.
• Accounting start date – from what day of the month do calculations begin. Usually the tariff is valid from the first day of each month.

And as additional settings, use the following options:

• Widget in the notification shade – show the widget or not.
• Show network speed – current Internet connection speed.
• Send traffic reports. I advise you to disable sending reports to Xiaomi.
• Disclaimer — license agreement that the company and the mobile operator do not owe you anything, all risks are solely on the user.

The procedure for setting up a Huawei (honor) smartphone to work with multiple SIM cards on the Internet.

1. Launch the Phone Settings application.

2. Go to the “Wireless Networks” section.

3. In the “Wireless networks” section, select “SIM card settings”.

4. The phone has two SIM cards (in our case, these are two SIM cards from the same operator MTSRUS). You need to select a SIM card that will be used as the main one for accessing the Internet over a 3G or 4G network.

To do this, in the “Data transfer” item, select SIM1 or SIM2. We select the first SIM card and mark SIM1.

5. Next, you need to configure the monthly traffic limit for each SIM card, so that when the traffic limit is exhausted, the phone can switch to the second SIM card for the mobile Internet.

To do this, in the “Wireless Networks” section, select “Data Transfer”.

6. In the “Data transfer” item, for each SIM card you need to configure two parameters: — Monthly traffic limit and its start date; — Traffic notification.

To start setting up the Monthly traffic limit, you need to click on the “Settings” icon in the form of a “gear” at the top of the screen on the right.

The procedure for setting the Monthly Internet traffic limit is described in the article “How to set the Internet traffic limit on a HUAWEI (honor) smartphone?”

7. After entering the Monthly traffic limit, you need to select the “Traffic Notifications” item.

In the “Traffic Notifications” window, in the “Over the monthly limit” item, the “Disable mobile data transfer” option must be set.

8. The same settings must be made for the second SIM card.

9. After completing the settings, you need to enable mobile data transfer; to do this, swipe from the top edge of the screen to lower the notification panel shade and click on the “Data transfer” icon. The icon will change its color from gray to turquoise, which will mean that the mobile Internet is turned on.

The procedure for switching mobile Internet between two SIM cards on a Huawei (honor) smartphone.

1. As soon as your phone reaches the monthly Internet traffic limit, it will automatically disconnect mobile Internet from the main SIM card and offer to switch to a secondary SIM card. To do this, a corresponding notification will appear on the smartphone screen. Therefore, to switch to another SIM card, you need to select the “SWITCH TO ANOTHER” option.

2. After this, the phone will go to the “SIM Card Settings” page and ask for confirmation to switch the SIM card. Click on the “SWITCH” button.

3. After this, the “SIM Card Settings” page will look like this.

4. To access the Internet after switching SIM cards, you must enable “mobile data”.

This can be done through the Notification Panel or in the “Wireless Networks” section you need to select “Mobile Network” and turn on the “Mobile” switch. data transfer».

Articles related to this topic:— How to connect the Internet on a HUAWEI (honor) smartphone?— How to set an Internet traffic limit on a HUAWEI (honor) smartphone?— How to clear the traffic limit settings on a HUAWEI (honor) smartphone?

Telephone guide: two SIM cards in one mobile phone

Managing SIM cards in emui on a Huawei smartphone

Users who are just starting to use Huawei smartphones with dual SIM cards and the proprietary Emotion UI shell sometimes have difficulty setting up and managing SIM cards. Some users find it difficult to get used to the operating logic of such a phone and not make mistakes when making calls or sending messages, making them from the wrong SIM card.

In new versions of Emotion UI (starting from version 2.0), to prevent these errors, the interface provides a number of improvements and innovations, as well as highly specialized settings.

All basic settings for managing SIM cards are located in the “Settings – SIM card management/SIM card information” section.

In this menu item you can do the following:

• Activate available SIM slots;
• Change the names of SIM cards to any convenient ones. Changes will be shown on the call buttons in the phone application and on the message buttons in the SMS application;
  
• Enter or change the SIM card number, as well as enable the display of the last or first four digits of the number along with the SIM card name. This change will also be shown in the messaging and calling apps;
  
• Enable 4G/3G/2G mode for the desired SIM card;
• Switch data transfer service between SIM cards. Depending on the device, data transfer options are available for one of two SIM cards;
• Configure the operation parameters of SIM cards when roaming. Use separate services from each SIM card when roaming;
• Select the SIM card from which calls will be made and messages will be sent by default. It is worth noting that in this menu you can select the “smart” SIM card selection mode, which will recommend a SIM card to you based on your previous actions. If you use one of the SIM cards only for an Internet connection, then in “simple” mode you can select one of the SIM cards to make calls and send SMS messages. Then your phone application and messages will look like on a single-SIM device;
  
• In addition, for incoming and outgoing calls, as well as messages, the phone screen will show the number of the SIM card to or from which the message or call is being sent.

This way you will never confuse SIM cards and can easily give up two devices in favor of one with two SIM cards.

Source

How to replace the standard key for opening the tray

There are times when the standard SIM card tray eject key gets lost due to its small size. But it can be easily replaced:

• A regular paperclip. To use, you need to straighten one end of the paper clip, bending it for maximum convenience.
• With a needle. Everyone at home has a regular needle that can be used for other purposes, for example, opening a SIM card tray. To do this, insert a non-sharp end into the hole (where the ear is), and then press with something hard, since the fingers themselves will, at a minimum, slide. At the same time, it is highly not recommended to press the needle with your bare fingers without using any protection, as this will cause severe pain (the non-pointed end was inserted into the tray, but you will have to press on the sharp one). As an alternative, you can even use a table, resting a needle with a tray on it. In any case, be extremely careful.
• Use earrings. These are the most popular replacement tray opener tools because even if you don’t have them on you, it’s easy to ask someone nearby. For example, when you are outside the house, where there is no needle, no paper clip, or other sharp objects.

Source

Stage 2: android setup

The next step is to set the default application for receiving SMS and configure it. As an example, we will give a sequence of actions on a smartphone running “pure” Android.

1. Go to the parameters in any convenient way.



2. Next, use the options “Applications and notifications”
   – “Default Applications”
   .



3. Find the item “SMS”
   and tap on it.



4. Next, select from the list of programs the one you want to use as your main one.

   

   After replacement, a warning will appear asking you to enter a password if you have set up a screen lock.



5. Reboot your phone — on most devices running Android 10, this requires pressing and holding the “Power” key
   , then select item “Restart”
   in the pop-up menu.