![]() Media Transfer Protocol (aka MTP) is a protocol created to copy or send data and is used in devices running the Android operating system. Using the MTP or PTP protocols is possible only with a wired connection of your smartphone to a laptop or computer. MTP vs PTP: comparison of these two protocols ![]() Connecting an Android phone or tablet to the computer as a standard USB storage device is convenient, but there are too many drawbacks… Therefore, modern Android devices use different USB connection protocols. ![]() Android MTP devices connect to the computer as multimedia devices, and UMS (USB MSC) devices as removable drives or storage devices such as HDD, SSD, flash drives. The main difference between MTP transfer mode and UMS (USB MSC) protocols is that a different type of connection is used. For this reason, some applications and especially widgets placed on the SD card do not work. It means that your tablet or smartphone will not have access to this section, but the computer to which the device is connected can use it in every possible way. USB Mass Storage has one big drawback – when you create memory partitions, one of them is completely in control of the other device. Universal Mass Storage, or UMS for short, aka USB SMC, is a data transfer protocol commonly found on USB flash drives and external hard drives. Well, in order to understand why different modes are needed, let's first deal with each protocol separately.
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