Review on 📷 Amplim 64GB Micro SD Card, 2 Pack - High Speed MicroSD Memory with Adapter - MicroSDXC U3 Class 10 V30 UHS-I - for Nintendo Switch, GoPro Hero, Surface, Samsung Galaxy Phone, Camera, Security Cam, Tablet, PC by John Raj

The cards worked fine while in the phone but once I removed them they are no longer readable or recognizable by any device. The first card, which I thought was a miss, happened on both cards though. Other cards from other manufacturers work fine on my device and in the adapter that came with it, so the problem seems to be that these cards don't work.