Owners of Xiaomi Redmi 9C NFC Often, it is necessary to replace or replace SIM-The card, whether it's when you first set up your smartphone, change the operator, or add a second line, although it seems simple, improperly installed can cause the slot's contacts to be damaged, communication lost, or even the tray to break. This article will help you avoid common mistakes and complete the task in 2 minutes.
Model Redmi 9C NFC Supports two nano-SIM cards (format) 4FF) And you can have a microSD card up to 512GB, but with the important caveat: the slot is hybrid, which means you can use either two at a time. SIM-card SIM + We'll go into detail on how to remove the tray, place the cards, and put it back in place without the risk of jamming.
If you're holding Xiaomi for the first time, don't worry: the tray design here is standard for the brand, but there are a couple of "chips" that are not mentioned in the official instructions. For example, not all clips to extract are suitable - too thin clips or pins can bend, and too thick - damage the mechanism. We tested the process on 5 different instances of Redmi 9C NFC to determine the optimal algorithm.
Preparation: What will be needed for installation SIM-map
Before you start the installation, make sure you have everything you need.
- π± Smartphone Xiaomi Redmi 9C NFC (switched off!).
- πͺ¨ Paperclip or special key to extract the tray (comprised with the phone).
- π Nano-SIM card (or two if you don't use microSD) If your card is different in size, you'll have to cut it off or replace it in the carrier's cabin.
- π Good lighting β the tray is small and the contacts are small SIM-The cards must match perfectly.
If you don't have a Xiaomi brand key, a regular paper clip is good, and the key is to unbend it so that the tip is straight and not too sharp, and avoid using needles, pins or toothpicks, which can scratch the inside of the slot or break inside.
It's important, before installation. SIM-Turn off your smartphone, and that will prevent any failures in the communication module, and protect the contacts from static electricity. If the phone is discharged, charge it to at least 10%, sometimes the tray is tight, and you have to apply a force.
Where is the slot for SIM-maps 9C NFC
At Xiaomi Redmi 9C NFC slot SIM-The card is on the left side of the case (if you look at the screen with the face), it is easy to identify from a small hole with a metal rim, which is the lock of the tray. SIM-maps, but on the Redmi 9C NFC She's gone.
To avoid confusing the slot with other connectors (for example, with 3.5 mm for headphones or USB-C), remember:
- π USB-C down-centre.
- π§ The headphone jack is on the top left (if you have it in your modification).
- πΆ Slot SIM-cards - strictly in the middle of the left end.
If you're holding your phone for the first time, grab a flashlight and look carefully at the left end. The tray extraction hole should be the only one on that side. On some Redmi models, the slot is on the right, but on 9C NFC it's strictly on the left, as shown by the manufacturer's diagrams.
What to do if you can not see the hole for the paper clip?
Step-by-step: how to remove the tray for SIM-map
Now, to the most important step, the tray removal, follow the instructions carefully so that you do not damage the mechanism:
- Turn off the phone (press the power button and select βSwitch offβ).
- Take a paper clip or key and insert the tip into the hole on the left end.
- Press with effort until the tray βpop upβ 1-2 mm. Do not be afraid to press hard β the mechanism is designed for this.
- Carefully pull the tray on yourself until completely removed.
If the tray is not moved the first time:
- π Check if you pressed correctly - the force should be directed perpendicular to the body.
- π§ Try another tool (maybe the paper clip is too thin).
- π± Make sure the phone is really off β sometimes the tray is locked software.
Phone off | Uses a suitable tool (not a needle!) | Clear clip opening | Force is applied perpendicular to the body-->
The critical nuance: on the Redmi 9C, the NFC tray only extends 70-80% of its length. Don't try to pull it out completely - it can damage the guides! It's enough that it comes out 1-1.5 cm so you can grab it with your fingers.
How to insert it correctly SIM-card-tray
Xiaomi Redmi 9C NFC has three positions:
- SIM 1 (top slot) is the main card.
- SIM 2 (Middle Slot) is the second card.
- MicroSD (bottom slot) β A memory card (replaces the SIM 2 if used).
Pay attention to the notches and contacts:
- πΉ In nano-SIM, the bevelled angle should coincide with the angle on the tray.
- πΉ Contacts (the golden part) should be face down.
- πΉ The map should lie flat - do not speak or fail.
If you set two SIM-cards, place them in slots SIM 1 and SIM 2. For one. SIM + Use microSD to use microSD SIM 1 and MicroSD, you can't install two. SIM microSD at the same time!
| Configuration | Slots used | Is it supported? |
|---|---|---|
| 1 SIM-map | SIM 1 or SIM 2 | β Yes. |
| 2 SIM-map | SIM 1 + SIM 2 | β Yes. |
| 1 SIM + microSD | SIM 1 + MicroSD | β Yes. |
| 2 SIM + microSD | SIM 1 + SIM 2 + MicroSD | β No. |
| Only a microSD. | MicroSD | β No (needs at least 1) SIM) |
β οΈ If you're wrong and install a microSD in the slot SIM 2 instead of a microSD, the phone doesn't recognize the memory card. SIM-map SIM 2 will work, but only if the microSD slot is empty.
Installation of the tray back into the phone
When the cards are placed correctly, carefully insert the tray back into the slot:
- Make sure the bevelled corners of the cards match the shapes on the tray.
- Insert the tray smoothly, without distortions - first slightly press it so that the contacts enter the slots.
- Then, with a light press, sink the tray before clicking.
If the tray does not enter:
- π Check if the cards are lying correctly (possibly flipped by contacts upwards).
- π§Ή Make sure there is no dust or foreign objects in the slot.
- π§ Do not apply excessive force - it is better to remove the tray again and check the installation.
π‘
If the tray is tight, lubricate the guides with graphite lubricant (sold in auto parts stores). Do not use oil or WD-40 - they attract dust and can damage the contacts.
β οΈ If the phone can't see the tray after you've installed it. SIM-First, restart the device, sometimes the system needs to initialize the communication module. If the problem persists, check if the contacts on the map are contaminated (wipe them with a lasticular eraser).
Frequent Mistakes and How to Avoid Them
Even experienced users sometimes make mistakes when installing SIM-Here are the most common ones and how to prevent them:
- π« Use of inappropriate tools (needles, toothpicks) β Solution: Use only a paper clip or a brand key.
- π« Installation of microSD in the slot SIM 2 β Solution: Always use the bottom slot for microSD.
- π« Distortions in tray insertion β Solution: insert the tray smoothly, effortlessly.
- π« Ignoring the sloping angle β SIM-Solution: always combine the corners of the map and the tray.
Another common problem is that the phone canβt see. SIM-The reasons for this can be different:
- πΆ The card is not activated by the operator (check in your personal account).
- π Contacts on the card or slot are damaged (wipe with alcohol).
- π± Software failure (reboot your phone or reset your network settings in Settings) β SIM-maps and mobile networks β Reset).
π‘
After several attempts, SIM-The card is not defined, try inserting it into another phone, and if it doesn't work there, it's the card, not the Redmi. 9C NFC.
Additional settings after installation SIM-map
After successful installation SIM-This map might need to be set up. This is what you should do first:
- π Priority SIM-Call Cards: Go to Settings β SIM-maps and mobile networks β Priority SIM-maps and select the main one.
- π Setting up mobile internet: in the same menu, activate Mobile Data and select SIM-map.
- πΆ Network mode: if you have 4G-SIM, Make sure that in the settings β SIM-map β [choose SIM] β Network type selected 4G (preferably).
If you use two of them SIM-maps, note the status icons in the notification bar. Xiaomi defaults to show only the main SIM, But you can turn on the display of both:
- Open Settings β Notifications and Status bar.
- Select Status Line.
- Activate the option to show two SIM-map.
It is also useful to set up a quick switch. SIM-cards in the notification panel:
- Swipe down from the top edge of the screen to open the notification bar.
- Click on the icon Β«βοΈΒ» (edit).
- Find the tile Data SIM-Maps and drag it to the active area.