How about Huawei enjoy downloading software to USB flash drive?

You can read the data in the NM memory card of other mobile phones or other USB storage devices (such as USB OTG data cable). The operation mode is as follows:

1. Data transmission between two mobile phone memory cards

1. Connect two mobile phones through USB OTG data cable and USB data cable.

2. On the copied device, set the USB connection mode to file transfer mode.

3. Click the memory card in the pop-up box of another device, browse the data of the memory card, select the data to be copied, and copy it to the target folder.

4. After copying, click Settings > Storage > Memory Card > Eject.

Second, data transmission between mobile phone and USB flash drive.

1. Connect the mobile phone with USB OTG data cable.

2. open file management >; Browse > u disk, browse the data of u disk, select the data to copy, and copy it to the target folder.

3. after copying, click settings > storage > u disk > pop-up.