Remote control photography Huawei mobile phone can't connect.

If you need to upgrade the TF card, you generally need to have a storage device to save and download the upgraded firmware, and you need to install the TF card to upgrade normally (there is only one general term for SD card, and TF card is the usual mobile phone memory card, with the volume of15mm x11mm, which is almost equal to the size of the fingernail), as shown in the following figure.