Modern smartphones are becoming more complex, and even basic operations like installing an operator card sometimes baffle inexperienced users. Xiaomi Redmi 6 is a popular budget device that is often bought as the first means of communication for children or the elderly.
Installing the chip incorrectly can cause the phone to stop seeing the network, or, in the worst case, damage the slot itself. In this article, we will discuss in detail the design of the tray, the sequence of actions and typical errors that should be avoided. Following our recommendations, you can easily activate the communication on your device.
It is important to understand that Redmi 6 is equipped with a hybrid slot, which imposes certain restrictions on the combination of cards used. Before starting the procedure, make sure that the device is turned off, although modern standards allow hot replacement, reinsurance will not hurt. Let's take a closer look at the process.
Preparation for installation SIM-map
Before you pick up a paper clip, you have to prepare the workspace and the components themselves. SIM-Nano-SIM card, which is the smallest standard to date, if your card is large (Mini or Micro), you need to carefully break it down or replace it with a carrier.
Also make sure you have a special key on hand to extract the tray. It usually comes with a box, but if you lose it, a regular stationery clip will do, the main requirement is that the tool must be thin and durable so as not to damage the mechanism inside the hole.
Look at the tray in good light, and there's a small hole on the end of the device, which is often the silhouette of the map, and that's where you use the key, and don't use sharp objects like needles or knives, because they can break down inside or damage the board's internal components.
☑️ Preparation for installation
⚠️ Warning: Never try to insert a card by force. If the tray does not enter smoothly, then you have violated orientation or insert a card in the wrong format.
Slot location and tray design
In the Redmi 6, the card slot is located on the top end of the case, a classic location for many Xiaomi smartphones of the period. The tray is a metal frame with a plastic base that extends outwards when the key is pressed into a special hole.
The tray design in this model is hybrid, which means that the user has a choice: use two. SIM-card at the same time or SIM-A microSD card and memory card to expand storage, and you can't use two SIMs and a flash drive at the same time, because the second slot is physically shared.
And you'll notice that there are little grooves and bevels on the tray, and they're made for a reason, they're guides that will keep the card from getting in the wrong way. There's a little notch on one side of the tray that matches the shape of the chip. Notice the golden contacts, they have to look up when you hold the phone with the screen to you.
Why is the tray hybrid?
Step-by-step: how to insert a sim
Now, to the installation process itself, hold the phone so that the screen is looking at you and the top end is pointed upwards, find a hole to extract the tray to the right of the speaker (seeing from the top), carefully insert the key or paper clip perpendyar to the body and press before clicking.
The tray has to go out. Remove it completely. Now, notice the shape of the cutout. Put your Nano-SIM card in the appropriate recess. Make sure the bevelled corner of the card matches the bevelled angle in the tray. The golden contacts have to be pointed upward.
If you use one SIM, it can be inserted into any of the slots (usually numbered 1 and 2), but for the main card it is better to use SIM 1. If you plan to use the memory card, insert it into the second compartment on top of the contacts of the second SIM (or instead of it).
- 📱 Take a paper clip and press into the hole on the top end.
- 💾 Put Nano-SIM in the tray contacts up.
- 🔙 Carefully return the tray to the phone before clicking.
- 🔌 Turn on the device and check the signal.
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Use soft cloth or microfiber to wipe golden contacts SIM-This will improve the connection and prevent reading errors.
Setting up two SIM-microSD cards
Many users prefer to use two numbers: one for work, the other for personal calls. - Xiaomi Redmi 6 Supports two cards simultaneously on the network 4G/LTE. However, as mentioned earlier, you will have to choose between a second SIM card and a memory card.
If you put two in. SIM-If you turn on the card, the system will suggest you set them up, so you can assign one to the mobile Internet, and leave the other for calls and other calls. SMS. It is also convenient to configure color codes or signatures so as not to get confused from which number the call is coming.
If you use a microSD card, it will take the place of a second SIM, which is true for those who store a lot of photos and videos, and the volume of supported cards can reach 128 GB or more, which greatly expands the capabilities of a budget device.
| Configuration | Slot 1 | Slot 2 | Note |
|---|---|---|---|
| Option A | Nano-SIM | Nano-SIM | Two active lines |
| Option B | Nano-SIM | microSD | One line + memory |
| Option B | Nano-SIM | Empty. | One line |
| Option G | microSD | Nano-SIM | It works, but better in Slot 1. |
Solving problems with map definition
You may have done the right thing, but the phone says, “No.” SIM-"Maps" or "Emergency Calls Only." First of all, try rebooting your device. Often, the system just doesn't have time to interview the new communication module after the physical setup.
If the reboot didn't work, retrieve the tray and check the contacts. The map may not be tight or moved when you push the tray in. SIM-cards with a soft eraser or alcohol wipe to remove oxidation or fat.
Check if yours is blocked. SIM-map PIN-If you turn it on, the phone can ask you to enter a pin code, and if you type it incorrectly three times, the card will be locked, and you will need to enter it. PUK-code that can be found on a plastic basis issued by the operator.
⚠️ Note: If the phone says "Unknown" SIM", It's possible that the card is too old and doesn't support current voltage standards.
Network and mobile Internet setting
After successfully installing and determining the map, you need to make sure that the mobile Internet works correctly. MIUI Network settings are located in the menu → SIM-Maps and mobile networks. Here you can choose which card to use for data transfer.
Often, the APN settings are automatically set up, but if the Internet is not working despite the signal, you may have to manually prescribe them, and the data for your operator can be found on the official website or obtained from the support service.
For modern 4G networks, it is important that the preferred network type mode is selected in the settings. LTE is preferred. If you only have 3G or 2G, the Internet speed will be low. Also check if data roaming is activated if you are abroad, although for home use it is better to keep it off to avoid unnecessary costs.
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Automatic APN setting works 90% of the time, but manually checking the access point settings solves the problem of not having internet when there is a signal.