
Received in June, worked fine until yesterday. I was having trouble turning off my mobile device and not being able to start it. The mobile device works as soon as I remove this Micros SD card. When I plug the card into my computer I can see the files but the card is write protected. I have verified that my adapter is not write protected and have tried several adapters that work fine with other cards. Still read-only. Many support sites say this is a sign the card is failing and I need to get my data off of it as soon as possible. I have but I can't format or erase the data so my only option is to destroy the card to keep the data safe so I can't go back. Only lasted a few months. I'm hoping to hear from Revain or Samsung but I can't wait so I put in another micro SD and the phone works great. Only my data is missing. If I get a response from either Revain or Samsung I will come back and update my review. I have many systems with different micro SDs but this is the only one that has ever failed. Update 1: Revain got it right. I would give Amazon 5 stars. I haven't heard from Samsung yet.

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