How to Fix OPPO K11 Sim Card Not Detected

OPPO K11

A SIM card is needed not only for mobile communication. She stores phone numbers, allows you to access the Internet (when connecting special tariffs), and in some cases also serves as a way to authorize the phone (PIN code for SIM cards). But sometimes OPPO K11 SIM card not detected for some reason:

  1. Incorrectly inserted SIM card.
  2. Malfunctions and defects of the SIM card or slot.
  3. Problems with drivers.
  4. Software issues.
  5. The SIM card is not activated in the settings.

Let's take a closer look at each of them.

The reasons for the problem with the SIM card on OPPO K11

Issues with SIM cards are divided into hardware and software.

To begin with, let's look at hardware issues.

Incorrectly inserted SIM card

There are currently two types of SIM cards in active use: Micro-sim and Nano-sim. The former is easily confused in size with SD cards. Because of this, sometimes the Micro-sim is placed in the slot for external memory and does not work. This issue is fixed by inserting the Micro-sim into the desired slot.

Nano-sim by size is small — if they are inserted incorrectly, the compartment with a place for the SIM card will still close, but the mobile connection will not work. The issue is also solved by the correct insertion of the Nano-sim.

Malfunctions and defects of the SIM card

The SIM card is damaged in several ways: incorrect circumcision scratches or furrows on the contacts, mechanical shocks, etc. There is one solution — replacement of the SIM card with a new one at the nearest branch of your operator.

Malfunctions and defects of the slot

The interaction of the SIM card with the OPPO K11 phone occurs through the contacts in the connector. Firstly, these contacts can oxidize when liquid gets on them. Secondly, the connector may break due to mechanical impact. Thirdly, the contacts and connector may become dirty over time if there are chips or cracks on the phone case.

It is difficult to solve the first two problems on your own — you need to disassemble the phone, check the operation of the circuits and, if necessary, replace broken parts. It is easier to give the device to a service center.

But, as for pollution, you can cope with them yourself:

  1. Turn off the phone. We are waiting 5–10 minutes.
  2. We dip a thin cotton swab in pure alcohol.
  3. Wipe the contacts and connector through the outer hole with light movements without pressure.
  4. We wait at least 1 hour, or until the alcohol dries.
  5. Turning the phone back on.

If you are afraid to clean yourself, contact specialists. If the SIM card is not visible even after cleaning, and other methods did not help, take the smartphone to the service center.

Programmatic reasons include the following:

Problems with OPPO K11 phone drivers

Owners of new phones often face similar problems. Sometimes the manufacturer is in such a hurry to present a working model to the buyer that it does not prepare the operating system for full operation.

Software problems

In smartphones, separate programs are used for calls and messages. Sometimes, after the update, errors appear in them that do not allow you to identify the SIM card.

The SIM card is not activated in the settings

If the SIM card is no longer activated automatically, then:

  1. Need to go to settings.
  2. Item "Network and Internet".

  3. Submenu "SIM card and mobile network".
  4. In the "SIM card Information and Settings" menu, select the desired SIM card.
  5. We turn the toggle switch opposite the "Activate SIM card" to the enabled position.
  6. If the SIM card has become active, then your phone number will appear next to the "Number" item.

Checking the SIM card

Testing on another device

To check the SIM card, try inserting it into another smartphone. If it works, then errors occur on your device, and they are not related to the SIM card. In any case, remember that often the SIM card does not work simply because it was blocked by the mobile operator.

Checking for damage

It will also not hurt to inspect the SIM card for damage — scratches and chips immediately catch the eye.

What to do if OPPO K11 SIM card not detected

Rebooting the device

Software problems are sometimes solved by rebooting. To do this, follow these steps:

  1. Hold the power button for 5–10 seconds.
  2. A menu appears in which to select the "Restart" option.
  3. Wait 1–2 minutes and check if the SIM card works.

Installing software updates

The SIM card may not work due to software errors. It is impossible to fix them yourself. The only option — wait until the software developer releases an update with bug fixes. They usually come out within a couple of hours, a maximum of several days. We have a separate material on how to update OPPO K11 so we will not dwell on this process in detail here.

Resetting network settings

This method is controversial since it does not solve the main problems with SIM cards. But if you decide to try it, then:

  1. Go to settings.
  2. Go to the "System" section.
  3. Select the item "Resetting settings".
  4. Select "Reset settings".
  5. Click on "Reset settings".

Remember that resetting the settings deletes all network-related data. This also applies to Wi-Fi passwords and devices linked via Bluetooth.

Contacting the service center

If none of the described methods helped you, then just contact the service center. Firstly, this way you will absolve yourself of all responsibility. Secondly, professionals are more likely to be able to solve all your problems.

Share this page with your friends:

See also:



How to flash OPPO K11

How to root OPPO K11

Hard reset for OPPO K11

How to reboot OPPO K11

How to unlock OPPO K11

What to do if OPPO K11 won't turn on

What to do if OPPO K11 doesn't charge

What to do if OPPO K11 doesn't connect to PC via USB

How to take a screenshot on OPPO K11

How to reset FRP on OPPO K11

How to call recording on OPPO K11

How to update OPPO K11

How to connect OPPO K11 to TV

How to clear the cache on OPPO K11

How to backup OPPO K11

How to disable ads on OPPO K11

How to clear storage on OPPO K11

How to increase font on OPPO K11

How to share internet on OPPO K11

How to transfer data to OPPO K11

How to unlock bootloader on OPPO K11

How to recover photos on OPPO K11

How to record the screen on OPPO K11

How to find blacklist in OPPO K11

How to set up fingerprint on OPPO K11

How to block number on OPPO K11

How to enable auto-rotate on OPPO K11

How to set up or turn off an alarm on OPPO K11

How to change ringtone on OPPO K11

How to enable battery percentage on OPPO K11

How to turn off notifications on OPPO K11

How to turn off Google assistant on OPPO K11

How to turn off the lock screen on OPPO K11

How to delete app on OPPO K11

How to recover contacts on OPPO K11

Where is the recycle bin on OPPO K11

How to install WhatsApp on OPPO K11

How to set contact photo in OPPO K11

How to scan QR code on OPPO K11

How to connect OPPO K11 to computer

How to install SD card in OPPO K11

How to update Play Store in OPPO K11

How to install Google Camera in OPPO K11

How to enable USB debugging on OPPO K11

How to turn off OPPO K11

How to charge OPPO K11

How to use the camera on OPPO K11

How to find lost OPPO K11

How to set password on OPPO K11

How to turn on 5g on OPPO K11

How to turn on VPN on OPPO K11

How to install apps on OPPO K11

How to insert a SIM card in OPPO K11

How to enable and configure NFC on OPPO K11

How to set time on OPPO K11

How to connect headphones to OPPO K11

How to clear browser history on OPPO K11

How to disassemble OPPO K11

How to hide an app on OPPO K11

How to download YouTube videos on OPPO K11

How to unblock a contact on OPPO K11

How to turn on the flashlight on OPPO K11

How to split the screen on OPPO K11

How to turn off the camera sound on OPPO K11

How to trim video on OPPO K11

How to bypass the Google account on OPPO K11

How to fix black screen on OPPO K11

How to change the language on OPPO K11

How to open engineering mode in OPPO K11

How to open recovery mode in OPPO K11

How to find and turn on a voice recorder on OPPO K11

How to make video calls on OPPO K11

How to transfer contacts to OPPO K11

How to enable/disable «Do not disturb» mode on OPPO K11

How to enable/disable answerphone on OPPO K11

How to set up face recognition on OPPO K11

How to set up voicemail on OPPO K11

How to listen to voicemail on OPPO K11

How to check the IMEI number in OPPO K11

How to turn on fast charging on OPPO K11

How to replace the battery on OPPO K11

How to update the application on OPPO K11

Why the OPPO K11 discharges quickly

How to set a password for apps in the OPPO K11

How to format OPPO K11

How to install TWRP on OPPO K11

How to set up call forwarding on OPPO K11

How to empty the recycle bin on OPPO K11

Where to find the clipboard on OPPO K11

Sim Card Not Detected on Another Phones