What should I do if Nissan HD card 1 Card 2 is garbled?

First of all, make sure whether your SIM card slot is in good contact, or whether there are pollutants that will cause the SIM card to be garbled.

The damage of SD card is caused by some data errors in the file system or card. The main reason for this failure is that the hardware is not safely deleted in use, such as forcibly pulling out the SD card before the end of data reading, or pulling out the SD card can be safely deleted without prompting. So in order to avoid the damage of SD card, we should avoid such illegal operation. Of course, we can still solve the problem of SD card by the following methods: for data errors, we can find relevant files and delete them manually. File system errors can be solved by formatting the SD card.