Lenovo A790e does not have access to the memory card

We apologize for any inconvenience this may cause.

1. It is recommended that you use a third-party file viewer to compare and use attempts.

2. Back up the data on your SD card, and then format it for comparison;

3. Replace your external SD card for use;

4. Back up your mobile phone information and restore factory settings;

If none of the above can improve your problem, it is recommended that you take the time to go to your local Lenovo authorized repair site for inspection and repair.

Lenovo authorized repair site inquiry.

The business hours of the maintenance site are usually from 9:00 to 18:00 from Monday to Sunday, except for holidays, and the stations will be slightly adjusted according to their own operations.

Having problems with your console? You have to go to the manufacturer to see it.

Hello, the system lag of the mobile phone is related to the running memory of the mobile phone and the internal memory card of the mobile phone, and the relationship between the external SD card is not too big, you can consider using the system optimization tool to release the running memory of the mobile phone, to ensure that the system runs by enough memory, and at the same time uninstall some software that is not often used; If the system is still too stuck, you can consider backing up important content in your phone and restoring it to factory settings.

The card you are talking about, whether it is slow to read or not, has something to do with the reading speed of your card.

The operation of the phone does not have much to do with the memory card, but is determined by the phone's internal memory (ARM). And you see how big the memory card your phone supports, don't rush to replace it!

I used to have this problem with my mobile phone, which was caused by the memory card reading and writing speed being out of sync with the mobile phone, there were too many things inside the memory card, and it would be good to keep the empty memory above 2 G!

1. Whether you display the capacity information normally through "Settings - Storage - External Memory Card", if there is capacity information, it means that the SD card is recognized by the system. If not, it means that it is not recognized, it is recommended that you check whether the memory card is installed, it is recommended that you check whether the memory card is installed, try to take out the external card when the mobile phone is turned off, wipe it with alcohol to see if it can be used normally, or take out the memory card and insert it into the computer in the card reader to see if the computer can recognize and read, if so, try to format the memory card and put it back on the phone, select the fst32 format when connecting to the computer for formatting, and divide the volume by default to see if it can be recognized normally;

2. It may be that the TF card is not compatible well or the TF card itself is not of good quality, it is recommended that you replace an SD card.

3. If the SD card is still not used normally after replacing the SD card, it may be a problem with the mobile phone software system or SD card slot, try to back up the data, observe the use after restoring the factory settings, if it is invalid, you can take the time to bring the warranty card or invoice to contact the local maintenance site to reinstall the system, and let the staff test the SD card slot of the mobile phone, and the site staff will try their best to help you. Official website authorized maintenance site inquiry: