Does Redmi 1S have OTG support?

Yes, Redmi 1S supports OTG function. OTG stands for “On The Go”, which means you can connect a standard mouse, keyboard, pen drive, etc. into your Mi phone via an OTG cable.

But note that all Mi phone including Redmi 1s support only FAT32 flash drives (and not NTFS).

FAT32 and NTFS are the files system which help any device to read the file from USB drive or any other disk.

If you are unable to read your flash drive:

1. Check whether your flash disk follows the FAT32 file system.
2. If it is not FAT32, set it to FAT32 on your PC, and then use it with your Redmi 1S.