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 questão:
- O modo avião está ativado
- Unsupported network mode
- Disabled SIM card
- Incorrect network APN settings
- SIM card inserted improperly
- Corrupt cached data
- SIM card problem
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Observação: 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).
Método 1: Métodos básicos de solução de problemas
Here are a few basic troubleshooting methods to fix SIM card not working on Android device.
1A. Reiniciar telefone
SIM cards inserted might require a restart for it to initialize in case of a newly installed one. Follow the below steps:
1. Pressione e segure o poder botão.
2. Em seguida, toque no Reiniciar.
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. Vá para a painel de notificação on your device by swiping down the top notification bar na tela.
2. Toque no Modo avião ícone para girá-lo On se é Off por padrão.
3. Wait for a few seconds and tap on the Modo avião ícone para girá-lo Off.
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 ícone de engrenagem para abrir o Configurações menu.
2. Em seguida, toque em Rede e internet.
3. Toque em Cartões SIM.
4. Ligar the toggle for the SIM cards inserted if it is disabled.
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Método 3: atualizar o sistema operacional Android
Always keep your Android phone up-to-date to avoid any software and hardware conflicts. To update your phone, follow the below steps:
1. Vamos para Configurações do notifications panel.
2. Deslize para baixo e toque em System.
3. Agora, toque em Avançado.
4. Em seguida, toque em Atualizações do sistema to check for any updates.
4A. If an update is available, instalar a atualização e reinicialização seu dispositivo.
4B. If your Android OS is up-to-date, it will say O seu sistema está atualizado.
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. Deslize para baixo o notificação menu from the home screen and tap on the Ícone de configurações.
2. Toque em Rede e internet.
3. Agora, toque em Rede móvel.
4. Agora, toque em Avançado.
5. Turn Off the toggle for the option Selecionar rede automaticamente.
6. Agora, toque em Choose network.
7. Now, choose your Operador de rede manualmente.
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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. Vamos para Configurações e toque em Rede e internet.
2. Toque em Rede móvel.
3. Toque em Access Point Names.
4. Toque no três pontos e selecione Restaurar ao padrão.
5. Agora, toque no + ícone e adicione o APN details.
Observação: The details of APN will be available on the official carrier website (e.g., Vodafone).
6. Quando terminar, toque no sinal de visto no canto superior direito.
Método 6: redefinir as configurações de rede
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. Abrir Configurações.
2. Role para baixo e toque em System, Seguido por Redefinir opções.
3. Finalmente, toque no Reset, Wi-Fi, mobile & Bluetooth opção.
4. Toque em REDEFINIR AS CONFIGURAÇÕES.
5. Insira o seu pino ou senha se solicitado.
6. Toque no REDEFINIR AS CONFIGURAÇÕES opção novamente.
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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. Vá para a Configurações menu do quick access menu.
2. Toque no Apps e notificações.
3. Toque em ícone de três pontos no canto superior direito e selecione Mostrar sistema.
4. Toque em Kit de ferramentas do SIM.
5. Em seguida, toque em Armazenamento e cache.
6. Finalmente, toque em LIMPAR CACHE.
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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. Deslize para baixo o notifications panel e vai para Configurações.
2. Deslize para baixo e toque em Armazenamento.
3. Agora, toque em Armazenamento interno compartilhado.
4. Finalmente, toque em Cached files to delete files.
This can solve the SIM card not working Android issue
Método 9: inicialize no modo de segurança
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. Segure o botão de energia.
2. In the pop-up menu, press and hold the Desligar option until the Safe mode appears.
3. Toque em 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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Método 10: Execute a redefinição de fábrica
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. Abrir Configurações e toque em System.
2. Agora, toque em Redefinir opções, Seguido por Apagar todos os dados (redefinição de fábrica).
3. Toque no Apagar todos os dados botão.
4. Insira o seu PIN ou padrão, caso existam.
5. Toque em Data clara 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!