Dec 03, 2017 12:51 AM
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(via Android App)
(Updated Aug 29, 2019 05:33 PM)
I have owned two of these cards in past. One 32 GB Red and Grey which was actually a sdhc(Secure Digital High capacity) Card which I have now sold and One 128 GB Black Sdxc(Secure digital extended capacity) Card which I still have.
I had a bad experience with this Card. I had been using it from the last six months and last month it unexpectedly failed.
I was downloading something and all of a sudden the Download failed and the Card stopped working.
I got an error that data cannot be written to the SD Card. Eject and mount it back.
At this moment, I could not access the contents on the Micro SD card, and the app ES file Explorer showed to me the card is empty. The contents had gone invisible.
So I ejected the card and then Mount it. Now I was able to see as well as read the contents of the sd card but once I attempted to save or copy a file to the Sd card, I got the same error and contents went missing. Soon I realized that this card was not accepting writes. It had lost the write capability.
In short, it had become useless for me as it was not usable. I looked up for solution to this online and finally got help from a website named Quora. A person who had been through the same problem had explained how to get a Replacement.
As this card had a 10 year warranty, I just followed the forum and filed an RMA through this link below
https: //kb.sandisk.com/app/rmaform
I was asked to upload the Proof of purchase and the images of the micro sd card. Within 24 hours I got a call from Sandisk Global CC. They enquired about the problem and told me to perform a force format. This went on for 5 days but no luck and thus on 6 November, I was finally provided a replacement.
I still have it but im not going to use it. This card has a High storage capacity of 128 GB but it has Non reliable Class-10 speeds. 10 MB/s is just the theoritical maximum, in real life its more like 6-7 MB/s which is not ideal for this card to be formatted as Internal Storage.
I would better buy a High speed UHS-3 card like the Samsung pro+ or the Sandisk Extreme pro as their write speeds are on par with the Smartphones Internal Storage, and even faster. These cards can go upto 90 MB/s on USB-3 and upto 30 MB/s on Typical USB 2.0 Cell Phones. You cant expect much from the Sandisk Ultra Cards. Neither speed not reliability. I might have got a faulty product. However, customer support was excellent.
Screenshots attached for proof
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