Xiaomi’s mobile devices have long proven to be reliable gadgets with excellent value for money. The Redmi 6 is no exception, offering users a metal body and a productive processor for everyday tasks. However, as with any modern smartphone, the initial communication setup can raise questions for those who are first faced with this design tray.
The process of installing a carrier card seems rudimentary, but Redmi 6 has its own nuances related to the hybrid slot and chip sizes.Incorrect installation can lead to the phone not seeing the network or, worse, damaging contacts. In this article, we will discuss in detail all the stages, from tool preparation to setting priorities. SIM-map MIUI.
Before you start physically removing the tray, you need to make sure that the device is completely turned off. Although modern smartphones support hot replacement, to correctly identify a new SIM card and avoid software failures in the communication module, it is better to conduct the procedure with the power turned off, which ensures that the system immediately scans the ports when booting and correctly identifies the operator.
Preparation for installation and necessary tools
To do this successfully, you'll need a minimal set of items that usually come with the device. In the box with Xiaomi Redmi 6, there's always a special paper clip to extract the tray. If the original tool is lost, you can use a regular stationery clip, straightening one of its ends, or a thin needle. The main requirement is sharpness and strength of the tool.
It is also important to prepare yourself. SIM-Today's networks use Nano-SIM chips, which are the smallest, but Redmi 6's tray is versatile and often requires a card to be fitted in a special plastic adapter or a Micro-SIM card, if that's the option your carrier has provided. Make sure the contacts on the map are clean and have no visible damage.
⚠️ Warning: Never use knives, a sewer or other sharp metal objects with a wide working part to extract the tray. You risk damaging the mechanism of the extraction sensor or scratching the smartphone body in the area of the hole.
The workspace should be well lit and the surface clean and flat. It is recommended to cover the table with a soft cloth in case the tray or SIM card slips out of your fingers. Falling on a hard floor can lead to microcracks in the plastic tray or damage to the card itself.
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Before inserting the SIM, wipe its contacts with a soft dry cloth or eraser. Fat marks from the fingers can worsen contact and lead to unstable network operation.
Tray anatomy and types SIM-map
The tray in Redmi 6 is located on the top end of the device, on the left, if you look at the screen. It's a hybrid slot, which means you can install two. SIM-card SIM-The design of the tray has a clear geometry, and it is quite difficult to confuse the sides of the installation if you carefully consider its shape.
One side of the tray is for a memory card and the other for a SIM card. In some modifications or regions, trays can only be designed for two SIM cards without memory card support, but most often there is a hybrid version. It is important to understand that it is impossible to install a second SIM card and a memory card in one slot at the same time.
The size of the chip is critical. For the Xiaomi Redmi 6, the standard is the Nano-SIM format. If you have a larger card (Micro or Mini), it must either be replaced from the operator or gently broken down along the contour if the design of the card itself allows. Using cards that do not match the size of the slot can lead to a tray getting stuck inside the case.
Can we use adapters?
Notice the bevelled corner of the card, which is the key that prevents the chip from being inserted on the wrong side, and there's also a small notch on the tray that corresponds to this bevel, and if you're right, the map is placed tightly in the recess, and it doesn't stagger.
Step-by-step installation instructions SIM-map
The first step is to find a hole to extract the tray on the upper end of the body. Place paper clips or needles perpendicular to the surface in the hole and press with moderate force until a characteristic click. The tray should extend a few millimeters, after which it can be removed with your fingers.
Place the extracted tray on a flat surface and place it on it SIM-Make sure the golden contacts are pointing down to the phone contacts, and the bevelled angle is the shape of the tray, and the map should lie in a recess level with the edges of the plastic, without standing upwards.
☑️ Installation algorithm SIM
Carefully insert the tray back into the phone. It's important to be guided here: the tray has only one correct entry position. You don't have to use force; if the tray doesn't come in, flip it over. The movement should be smooth, until the mechanism is completely snapped.
After you install the tray, turn on the device. MIUI It will automatically detect a new SIM card if the card is secure. PIN-And then you have the code, you'll see a request on the screen to enter it, enter the code that you've provided, and you'll confirm the action. PIN-Access to the network will be blocked.
| Parameter | Slot 1 | Slot 2 (Hybrid) |
|---|---|---|
| Type of card | Nano-SIM | Nano-SIM or microSD |
| 4G support | Yes (main) | Yeah (on switching) |
| Contacts | Down. | |
| Max. SD volume | Not supported | Up to 256GB |
Setting up two SIM-card MIUI
Once the two SIM cards are successfully installed, the system will suggest that you configure them. Redmi 6 has a convenient two-number management system, so you can assign one card to the default voice calls and the other to the mobile Internet, or you can choose Always Ask mode when making a call.
To access the settings go to the Settings menu → SIM-Maps and mobile networks. This shows both operator-named slots. By clicking on the operator's name, you can detail settings: turn on or off data roaming, limit background data transfer, or change the network name for easy identification.
In Redmi 6, high-speed 4G internet can only work on one of the SIM cards at a particular time. If you switch the internet to a second card, the first card will automatically switch to 2G/3G mode for voice communication, unless VoLTE technology is enabled.
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At Redmi. 6 one-on-one SIM-The card can work 4G/LTE Switching the Internet between slots is programmatic and takes a few seconds.
Also available on this menu is the "Receive calls to another SIM" feature if the main one is busy or unavailable, which is convenient for business users who do not want to miss important calls. Remember to activate the signal level display for both cards in the status bar to visually monitor the quality of communication.
Possible problems and ways to solve them
Despite the simplicity of the procedure, users sometimes face a situation where the phone does not see the SIM card. One of the common reasons is oxidation of the contacts. Try to remove the tray, wipe the contacts of the SIM card with a wipe or an alcohol wipe and insert it again, often solving the problem of unstable signal.
Another common problem is that if you've trimmed your SIM card to Nano, you might have damaged the chip or broken geometry, and you'd better go to your carrier's salon for a free replacement with the right size card, which will take a few minutes and ensure that you're up and running.
- 📶 No network: Check if the tray is inserted correctly before clicking. Make sure the settings are not enabled"Flight Mode".
- 🔒 Request. PUK-If you have entered three times incorrectly PIN-code, card blocked. PUK-the code is on the plastic card-holder, which was issued when buying a sim.
- 📉 Weak signal: Make sure you use it. SIM-support-card 4G, if your operator provides such services and that the appropriate network type is selected in the settings.
If the phone is writing"SIM-The card is not found, even after rebooting and clearing contacts, the reader in the phone may have been damaged, in which case you will need to be diagnosed at the service center. However, before you panic, try installing your SIM card in another phone to prevent the card itself from malfunctioning.