I'm using SanDisk Ultra with my Republic Wireless Moto G 1st Gen, Android Ver. 5.1 Lollipops. I was willing to give this OTG drive a low rating. My phone doesn't have a file manager, so I figured the SanDisk Memory Zone app (recommended by SanDisk) would be the easiest app to use. Well I was wrong. There aren't enough instructions in the app to even begin to understand how to use it, and when I wanted to transfer files to the SanDisk Ultra, the SanDisk Memory Zone app directed me to the Optimem, which found the unrecognized SanDisk Ultra flash drive. I keep getting the error "No SD card". It was very confusing for me, my phone showed a flash drive but the application couldn't "see" it. . After spending more than 2 hours trying to figure out if I made a mistake, I tried ES Explorer File Manager, it wasn't much better and had a lot of popup ads. Now I'm using ZenUI ASUS File Manager which has decent instructions and allows me to transfer files from phone to flash drive. It even allowed me to create new folders. I need to buy an OTG adapter cable as the SanDisk Ultra doesn't fit in the micro USB port when my phone case is on. I think the flash drive could have been designed in a way that didn't require an extra cable. Now that I can save files to the flash drive, it works fine for me. I copied videos to it, not moved it. I wanted to make sure none of my videos got deleted or messed up. When I am sure that the flash drive stores my files and the files are readable on other devices, I will delete the files from my phone. I was watching videos on my phone from a flash drive and they were all stuck in different places. I do not know why. Speed? Storage problems on my phone? Nothing froze when I watched videos on my laptop. I rate this OTG stick 4 stars. Because the SanDisk Memory Zone app doesn't work for me and SanDisk recommended it for their flash drive. And I don't have to buy a cable because I have to remove the case from my phone to use the flash drive.
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