What is the reason why Charm Blue 3s OTG didn't respond?

Hello, it should be that otg function is not supported.

The method for judging whether the mobile phone supports OTG is as follows:

Plug in the OTG cable directly, and then plug in the USB flash drive and other devices to see if the mobile phone recognizes it. If so, it supports OTG.

Search the mobile phone model used through the network, and then check whether OTG is supported in the parameters of the mobile phone.

Call the after-sales telephone directly for consultation.

OTG is the abbreviation of On-The-Go, which is a technology developed in recent years. Published by USBImplementers Forum on February 8th, 2000118, it is mainly used for data exchange between different devices or mobile devices. Especially PDA, mobile phone and consumer equipment. It changes the inconvenience of data exchange between memory cards with up to seven standards by replacing connectors with different standards among digital cameras, video cameras, printers and other devices.

If you need a telecom version of the mobile phone, you can directly log in to the online business hall of Anhui Telecom to buy it.