If you have bought a new SIM card or an old SIM card and inserted it into your Android smartphone to access the Internet, you encountered an issue on your phone, which now says SIM card not detected. You have removed the SIM card several times to re-check if it is inserted correctly, but you still encounter the same error.
You might be frustrated and out of options to try. If you are wondering how to fix this SIM slot not working issue, you are at the right article. Here, we discuss why the error occurs and the appropriate solutions to effectively solve the SIM card not working Android problem. Let’s get started.
How to Fix SIM Card Not Working on Android
Below are the primary reasons for this Android 問題:
- 飛航模式已開啟
- Unsupported network mode
- Disabled SIM card
- Incorrect network APN settings
- SIM card inserted improperly
- Corrupt cached data
- SIM card problem
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注意: Since smartphones don’t have the same Settings options, and they vary from manufacturer to manufacturer hence, ensure the correct settings before changing any. The following methods were tried on Moto G (8) power lite – Android 10 (Stock).
方法一:基本故障排除方法
Here are a few basic troubleshooting methods to fix SIM card not working on Android device.
1A. 重啟手機
SIM cards inserted might require a restart for it to initialize in case of a newly installed one. Follow the below steps:
1。 按住 功率 按鈕。
2. 接下來,點擊 重新啟動。
1B. Clean Golden Side of SIM Card
The golden side of the SIM card attracts dust over time which can be cleaned with a soft cloth. Remove the SIM card holder and the SIM card to clean the golden side of the SIM card. Slide back the SIM inside. This may resolve the problem of the SIM slot not working issue.
1C. Try Another SIM Card
Sometimes, you may doubt the SIM slot not working. There might be a problem with the SIM card holder. It can be damaged or is not functional. If this is the case, you can try inserting another working SIM card in the SIM card holder to see if it works. If the device still displays the SIM card not detected error, there might be a problem with the device or the SIM card holder.
1D. Try Another Android Mobile
If inserting another SIM card on your current Android device did not work for you, try inserting the SIM card in a different Android device, as there might be a chance of hardware issues in the device itself.
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1E. Disable Airplane Mode
An issue with the network reception can cause SIM cards not to detect the type of problems. So to overcome these problems, it helps to turn on and off the Airplane mode to block the problematic network reception and see if the SIM card gets detected.
1。 轉到 通知面板 on your device by swiping down the top notification bar 屏幕上。
2。 點擊 飛行模式 icon to turn it On 如果是 關閉 默認情況下。
3. Wait for a few seconds and tap on the 飛行模式 icon to turn it 關閉.
Method 2: Enable SIM card
You might have accidentally disabled the SIM card in the settings. In Android, there is a toggle to disable the SIM card while it is in use. Follow the below steps:
1. Swipe down on the home screen and tap on the 齒輪圖標 打開 設置 菜單。
2.接下來,點擊 網絡與互聯網.
3。 輕按 SIM卡.
4. 打開 the toggle for the SIM cards inserted if it is disabled.
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方法3:更新Android作業系統
Always keep your Android phone up-to-date to avoid any software and hardware conflicts. To update your phone, follow the below steps:
1。 去 設定 來自 notifications panel.
2.向下滑動並點擊 系統.
3.現在,點擊 高級.
4.然後,點擊 系統升級 to check for any updates.
4A. If an update is available, 安裝 更新和 重啟 你的設備。
4B. If your Android OS is up-to-date, it will say 您的系統是最新的.
Method 4: Search Manually for Network Operators
Sometimes, your carrier operator settings may change due to system conflicts due to some network or data conflicts. Due to this, you might experience the SIM card not working Android issue. Follow the below steps to resolve the same:
1. 向下滑動 通知 menu from the home screen and tap on the 設置圖標.
2。 輕按 網絡與互聯網.
3.現在,點擊 移動網絡.
4.現在,點擊 高級.
5. Turn Off the toggle for the option 自動選擇網絡.
6.現在,點擊 選擇網路.
7. Now, choose your 網絡運營商 手動。
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Method 5: Create and Update APN Settings
This issue can sometimes occur if your SIM card carrier access point network is not configured. You can try manually editing the APN to see if the SIM card not working Android issue persists. Follow the below steps:
1。 去 設定 並點按 網絡與互聯網.
2。 輕按 移動網絡。
3。 輕按 接入點名稱.
4。 點擊 三個點 並選擇 重置為默認.
5.現在,點擊 +圖標 並添加 APN details.
注意: The details of APN will be available on the official carrier website (e.g., 沃達丰).
6. 完成後,點選 刻度線 在右上角。
方法6:重置網絡設置
Older cached files and settings might conflict with the SIM card and cause network issues such as the SIM card not being detected. To fix this, you might need to clear the network settings cache on your phone manually.
1。 打開 設定.
2。 向下滾動並點按 系統, 其次是 重置選項.
3.最後,點擊 Reset, Wi-Fi, mobile & Bluetooth 選項。
4。 輕按 重新設置.
5。 輸入您的 密碼或密碼 如果提示。
6。 點擊 重新設置 再次選擇。
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Method 7: Clear SIM Card Cache
There is a system app called SIM card manager (or SIM toolkit on some devices). Clearing the data and cache of these can be helpful. Follow the below steps:
1。 轉到 設定 菜單來自 quick access menu.
2。 點擊 應用和通知.
3。 輕按 三點圖標 並選擇右上角 顯示系統.
4。 輕按 SIM工具包.
5.接下來,點擊 儲存與快取.
6.最後,點擊 清除緩存.
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Method 8: Clear Android Internal Cached Data
It is worth a shot to clear the internal Android cache as the cache gets clogged up over time and causes issues later on. Follow the below steps:
1. 向下滑動 notifications panel 並去 設定.
2.向下滑動並點擊 儲存應用.
3.現在,點擊 內部共享存儲.
4.最後,點擊 Cached files to delete files.
This can solve the SIM card not working Android issue
方法9:進入安全模式
There is a possibility that any apps can interfere with the initialization of the SIM card. If so, you can try booting your mobile into safe mode. Safe mode only loads the apps required to start the device without user-installed apps. If your SIM card works, then there might be problems with one of your apps.
1。 持有 電源按鈕.
2. In the pop-up menu, press and hold the 關閉電源 option until the Safe mode appears.
3。 輕按 OK to restart in safe mode.
You will also see the words Safe Mode written on your home screen at the bottom.
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方法 10:執行恢復出廠設置
If all else fails, you can try a factory reset to see if that works. Use this method as a last resort as this will wipe all data from your phone. It is wise to backup all your data before performing this step. Follow the below steps to resolve the SIM card not working on Android:
1。 打開 設定 並點按 系統.
2.現在,點擊 重置選項, 其次是 刪除所有數據(恢復出廠設置).
3。 點擊 刪除所有數據 按鈕。
4。 輸入您的 PIN 碼或圖案(如果有)。
5。 輕按 清除日期 to begin factory reset.
Method 11: Contact Customer Service Center
If none of the above methods worked and your Android mobile is still under warranty, you can provide your mobile to the nearby service center. If it is not under warranty, it is still worth taking your mobile to the service center since the service technicians can most probably solve the problems.
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We hope the above article on the fix SIM card not working Android issue was helpful and you could troubleshoot and solve your problem. Please let us know in the comments which one of the methods solved the problem for you. Also, don’t forget to share your queries or feedback on this article. Thanks!