Please download and install Free SD Memory Card Recovery(Win/Mac) on your computer at first.
Common reasons may lead to Memory card error:
Free SD Memory Card Recovery(Win/Mac) is able to access and save the data on damaged memory card easily as long as your memory card can appear as a drive letter in "My Computer" after connected to PC. You need to confirm your memory card can appear as a drive letter in "My Computer", which will allow recovery software to access and recover the lost photos. You may try to connect your digital camera to your computer, if a new drive letter appears in "My Computer", this is normal. Otherwise, you need to prepare an USB card reader. There are many card readers available on the market (e.g. SanDisk and Kingston). Next you can learn the detailed guide.
Step 1. Launch Free SD Memory Card Recovery and select the file types you want to recover. Select the disk where you lost your data and click "Scan" button, the software will quickly scan the selected disk to find all your target files.
Step 2. After scan, you can preview all the listed recoverable files one by one and select out those you want. Then, click "Recover" button to get them back.
Tip: Once you have damaged your memory card, it is highly recommended to stop further operations on the memory card.