Applies to:
I21AG_V7/I21AG_V8/I41CB_V2/I41CB_V3/I41DH
A. First of all, please ensure your Micro SD card is a branded product from the regular channel. The device supports up to 64G Micro SD card;
B. Please connect the Micro SD card to a computer or other digital devices to check if it can be recognized normally. If it can be recognized, please format it. If not, it is a defective Micro SD card. Please use another card to try again.
C. Please power off the device, insert the Micro SD card in a correct way, then enter the APP interface to check if it can be recognized normally; if not, please contact our customer service at support@sannce.com.
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