Welcome to addlink Support
How do I adWhy does my device show ''unsupported file format'' after I insert my memory card or USB into the OTG card reader?
To add a new question go to app settings and press "Manage Questions" button.Android doesn't support NTFS file system. If the SD card or USB flash drive you insert is NTFS file system, it won't be supported by your Android device. Android supports FAT32/Ext3/Ext4 file system. Most of the the latest smartphones and tablets support exFAT file system. Usually, whether the file system is supported by a device or not depends on the device's software/hardware.Please ensure the file system your device supports.
Why does my device can’t recognize the OTG card reader?
Please try to switch on the “OTG connection”.
Why does my phone still display the data of the previous SD card even if I have inserted another card?
Some types of phones and tablets listed in "compatible with conditions" might not support "Hot Plugging." Please insert the external storage device into the card reader first, and then connect the reader to your smartphone/tablet.
What’s the highest capacity that the card reader can support?
The card can work with the card reader as long as the card type is compatible with it.
Is the driver required to use card reader?
You do not need to install extra driver when you use the card reader.