The reasons why Redmi K30 cannot sense the card may be as follows:
1. Card slot failure: first, check whether the SIM card slot of the phone is normal.If there is a problem with the SIM card slot, such as looseness or damage, the phone cannot correctly recognize and sense the SIM card.
2. SIM card failure: Second, confirm whether the SIM card used is normal.You can try to insert the SIM card into other phones to test whether it can be recognized and used by other phones.
3. The network system does not match: In addition, you need to ensure that the SIM card you use matches the network system supported by the Redmi K30.If the network system provided in your region is incompatible with K30, you cannot sense any available signals.
4. Software problems: Finally, after troubleshooting the hardware, you can also consider whether there are software problems.Try restarting the phone or restoring factory settings to solve problems that may be caused by system errors.
If the above methods do not solve the problem, please contact the after-sales service center for professional technical support and provide more detailed information so that they can better help you solve the problem.
1. The memory card is not properly inserted.The memory card can be removed and reinserted. If it can be identified, it means that it was not inserted well the previous time.2. It may be the system card.It can be solved by restarting the phone. 3. A virus appears in the memory card.You can use anti-virus software to kill the virus first, and then identify it. If it succeeds, it means that it cannot be read because of the virus. 4. The memory card is damaged.If the previous conditions are still unrecognized, the memory card may be damaged. In this case, the memory card can be replaced. 5. Sanqing data.Enter Recovery.How to enter Recovery: In the shutdown state, first press and hold the "Volume Increase" button, then press and hold the "Shutdown" button, and when the boot screen appears, release your hand to enter Recovery.If you can access Recovery, please switch the system under Recovery and back up data. If you can't succeed, you need to clear all data (address book, SMS, mobile phone applications, etc. will disappear). 6. There is a problem with the mobile phone system, which cannot be recognized.Whether you can access Fastboot.To access Fastboot, first press and hold the "Volume Decrease" button, then press and hold the "Shutdown" button, and then release when the boot screen appears to enter Fastboot.Please connect your mobile phone to your computer and use Miflash to flash a complete system package. 7. Mobile phone hardware problem.At this time, only take the mobile phone to the maintenance office for maintenance.
