Effective Solutions to Fix SIM Card Not Detected Error on Android Phones

For many users, the SIM card not detected error is perhaps the most inconvenient issue. If you're using an Android device and sometimes encounter a situation where you insert the SIM card but receive a 'No SIM installed' or 'SIM Error' message, causing you to worry, then the following article sent by taimienphi.vn will be one of the solutions to help you resolve this issue.

How to Fix SIM Card Not Detected Error on Android

How to Fix SIM Card Not Detected Error on Android, Samsung, OPPO, HTC, SKY, Zenfone, Xiaomi

Method 1: Restart Your Device.

Sometimes, simply restarting your device can effectively solve the SIM card not detected issue on Android phones. This might be due to network or signal reception problems with your Android device... Give it a try by restarting your device to check again.

Method 2: Check if the SIM Card is Properly Inserted.

Each device will have its own SIM tray, but generally, they all have characters and patterns engraved on them. You should remove the SIM card and reinsert it correctly according to the SIM tray instructions.

Method 3: Clean the SIM Contact Surface.

In prolonged usage, the copper core of the SIM card may accumulate dust, dirt, or rust. This is also a common cause of SIM card not detected on phones. To fix this, you need to clean the SIM contact surface with alcohol, for example, to remove oxidized surfaces, then reinsert it to check.

Method 4: Turn Airplane Mode On/Off.

Another solution to fix SIM card not detected error on Android is to turn on airplane mode for a few minutes, then turn it off and wait for the device to automatically re-detect the SIM network. Simply swipe down from the device's status bar, swipe left to find the airplane mode icon, then toggle it on/off.

Method 5: Try Inserting the SIM Card into Another Device.

In cases where the SIM card is damaged or expired, it's also a major cause of SIM card not detected error on Android. Therefore, try inserting the SIM card into other phones to double-check and exclude possibilities. If the SIM card works, it's likely that your phone's SIM tray is faulty, so bring the device to reputable repair centers for early resolution. Conversely, if the SIM card still isn't detected, you should visit customer support centers to get a new SIM card.

Method 6: Check Phone Signal.

Some mobile networks may have limited phone coverage, or you might be in a tightly enclosed area where phone signals cannot reach. Simply go to a higher, open area or near the city center to get the best signal.

Method 7: Set the Phone to Automatic Network Mode.

This is a common issue for most users, where incorrectly configured mobile network settings can also lead to SIM card not detected error messages. To switch the network mode to automatic, follow these steps:

Step 1: From the user interface, access the Settings app and tap on More networks.

Step 2: Next, select Mobile networks > Network mode.

Step 3: Finally, ensure the option for automatic connection for WCDMA/GSM mode is selected.

Setting the Network mode to Auto Connect for any of the 3 main networks can resolve the SIM card not detected error on Android phones.

Method 8: Phone is Network Locked.

For some imported models, they may be network locked versions, and naturally, these devices won't be able to recognize SIM cards from domestic networks. So, head to reputable phone stores to unlock your device right away.

Additionally, you can refer to the summarized methods we have instructed earlier below.

Symptom: When inserting the SIM card, the device displays notifications such as: No Sim or Sim Error.

The cause may be a faulty SIM card or your Android device.
- Solution to fix SIM card not detected: The first thing you should do is try inserting the SIM card into another phone. If the SIM card doesn't work, then your SIM card is faulty.

- If your SIM card works when inserted into another device, it's likely an issue with your Android device.

Now, check if Airplane Mode is enabled on your phone. To check, swipe down the Status Bar and check the status of the Airplane Mode option.

If Airplane Mode is enabled, turn it off.

Switch the state from on to off and then restart your device.

If you've reinserted the SIM card and turned it back on but it still doesn't work, chances are your device has a hardware issue. In this case, you need to take your device to authorized service centers for resolution.

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With the methods Mytour.vn has provided above, we hope you can find a solution to fix the SIM card not detected error on Android. For common issues, you can use these methods, but for more complex and unresolved issues, please take your device to a service center for assistance and resolution.