Forgotten. PIN-code SIM-You can’t unlock the Xiaomi Redmi cards, POCO Or Mi? Well, the situation is familiar to many people: the phone asks you to enter a password every time you turn on, and you either don't remember the combination, or you get a device that already has a lock installed. In this article, we'll look at all the working methods of password removal, from standard to emergency, when you don't have a handy hand. PUK-code or access to the operator.
It's time to get straight: PIN-Code is the protection of the SIM-It's not the firmware that asks for it. MIUI, It's a communication module of the device, so simply resetting the smartphone settings won't help, but there are workarounds, including using an engineering menu, resetting through the phone. ADB Or even physically extracting the card, and the key is to be careful not to block it. SIM forever.
If you've never changed PIN-If you're the coder, try the standard combinations: 0000 or 1234. Operators often set them by default. But if the card is already locked after a few failed attempts, read on - we'll tell you what to do in such cases.
Standard method: input PUK-code
When you have entered the infidel three times PIN, SIM-The card is blocked and the phone starts to demand PUK-Personal Unblocking Key: This 8-digit code is tied to your SIM usually indicated:
- 📄 On the plastic carrier to which it was attached SIM-card.
- 📧 V SMS or a letter from the operator when activating the card.
- 🏦 In the personal account on the website of the mobile operator (section "Management" SIM").
To unlock the card:
- Enter. PUK-code.
- The system will prompt you to set a new PIN (you can leave the field empty to disable the password request).
- Confirm the change.
⚠️ Note: If you enter the wrong 10 times PUK, SIM-I'll have to call the phone for a new one.
Can't find PUK? Call the operator's hotline (from another phone) or use the online support chat, for example, MTS and Beeline can find the code through the My Operator app.
2. disable PIN request via MIUI settings
If your phone is unlocked but you are annoyed by the constant request PIN-when you turn on the code, it can be turned off in the settings:
- Go to Settings. → SIM-maps and mobile networks.
- Choose yours. SIM-card (if there are several).
- Turn off the PIN lock switch.
- Enter the current PIN for confirmation.
And then the phone will stop asking for a password when you reboot, and notice that this way of doing this doesn't reset the PIN, it just turns off the PIN, and if the card is already locked, it won't work.
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If you have a two-sim Xiaomi (for example, Redmi Note 12 Pro)+), setting PIN You will have to change each one separately. SIM-map.
On some firmware MIUI (Especially on older versions, the path to settings may be different. POCO F3 s MIUI 13 to go to Settings → Passwords and security → Settings SIM-map.
3. PIN reset via engineering menu (for advanced)
If standard methods don’t work, you can try resetting the communication module through the engineering menu, which is suitable for models on Qualcomm processors (for example, Xiaomi 11T, Redmi K50):
- Open the Phone app.
- Enter the combination: ##4636###.
- In the menu that appears, select Phone Information.
- Scroll down and press Disconnect. SIM-map (or reset radio settings).
After restarting, the phone may stop asking for a PIN, but this method doesn’t work on all devices and can reset network settings.
⚠️ Warning: Incorrect actions in the engineering menu can disrupt the communication module. If you're not sure, skip this method.
What to do if the engineering menu is not opened?
4.Use ADB to reset PIN (no root)
If you have access to a computer, you can try resetting your PIN request via Android Debug Bridge (ADB).This method does not require root rights, but you will need to enable USB debugging on your phone:
Instructions:
- Install ADB Tools on your PC.
- On your phone, turn on Settings → About Phone → MIUI version (click 7 times to activate Developer Mode).
- Return to Settings → Additional → For developers and enable USB debugging.
- Connect your phone to your PC and type in the command line: adb shell settings put global sim_pin_lock 0
- Reset the device.
If the team doesn’t work, try an alternative:
adb shell
am broadcast -a android.intent.action.SIM_PIN_LOCK --es sim_id 1 --ei lock_state 0(substitute sim_id 1 on 0, If you have a problem with the first SIM-card).
Install Xiaomi drivers on PC|Download ADB Tools|Enable debugging on USB phone-on|Connect your phone to the original cable|Check the connection with the adb device command-->
5. Physical extraction SIM-maps and resets
If all software methods are exhausted, then there is a radical way:
- Turn off the phone.
- Extract. SIM-card using a paper clip (tray is usually located on the top or side panel).
- Turn on the phone without SIM and reset to factory settings via Settings → About phone → Reset settings.
- After reset, insert the SIM back – the phone may stop asking for a PIN.
This method does not always work because PIN bound SIM-But sometimes resetting helps to reset the cache of the communication module.
| Method | PC required | Risk of SIM blocking | It works on a locked SIM. |
|---|---|---|---|
| PUK input | ❌ No. | ⚠️ High (with 10 errors) | ✅ Yes. |
| Disconnection in settings | ❌ No. | ❌ No. | ❌ No, only if SIM unlocked) |
| Engineering menu | ❌ No. | ⚠️ Medium. | ❓ Depends on the model. |
| ADB | ✅ Yes. | ❌ No. | ❓ Partially. |
| Removing SIM + reset | ❌ No. | ❌ No. | ❓ Rarely. |
6. Calling the operator: when nothing helps
If you have exhausted all options, and SIM-The card is still blocked, only a replacement remains. SIM It's a cameraman:
- 🆔 Passport (or other identity document).
- 📱 IMEI phone number (can be found via *#06#).
- 💳 Contract data (if the corporate card is).
The operator will issue a new SIM-The card with the same number, but all the old ones SMS And the contacts that are saved on the map will be lost, and some operators (like Tele2) can order a duplicate. SIM via the app without visiting the office.
The replacement cost is usually 50-200 rubles, and the procedure takes 5-15 minutes.If you are roaming, contact the operator by the support number (for example, 0890 for MTS).
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Replacement SIM-The only official way to unlock the card is if you lose it. PUK-code or exceed the entry limit.
Frequent Mistakes and How to Avoid Them
When trying to remove a password from the SIM, many users make typical mistakes:
- 🔄 Multiple input PIN: After 3 unsuccessful attempts, the card is blocked and will be required. PUK. Don’t try to guess the code, look for it right away. PUK.
- 📱 Resetting the phone without retrieving SIM: It won't drop. PIN, It is stored on a card, not in the memory of the device.
- 🔧 Use of dubious programs: There are suggestions on the Internet to hack" PIN The only methods that work are described above.
Another common problem is that the phone doesn't see the SIM after reset, which can happen if:
- The card slot is damaged (check contacts).
- The phone's firmware is damaged (try reflashing through the Mi Flash Tool).
- SIM-The card is physically faulty (try inserting it into another phone).
After all the manipulations, the phone is writing "SIM-The card is not supported" or "Network error", possibly the problem is incompatibility of communication standards (e.g. you inserted a link to the card. 4G-SIM on a phone that supports only 3G). Check out the specifications of your model on the official Xiaomi website.