512GB Samsung EVO Select U3 A2 V30 microSDXC Memory Card w/ Adapter Expired

Is there any way to format the card again after it does read only mode? Does Samsung offer suggestions? Is there anything on reddit in the forums about this? Maybe the speed of video capture was too slow, so it froze. Maybe install the Samsung Magician and it can "fix" the problem. I did buy 4 of these cards a few days ago and Magician scanned it and it says they are all genuine.

If the card itself has flipped read-only, there is nothing you can do. That happens when the card's controller determines a fault exists, or the drive has reached end-of-life and can no longer be counted on to store data reliably. It flips read-only to try and protect any existing data and allow for as much recovery as possible. This is a desirable failure mode, rather than continuing to work unreliably, until catastrophic failure occurs. The downside would be if it is a false positive and there isn't anything actually wrong. Either way, you may be able to get the card replaced under warranty.

can you provide LINK to this. Did you look at the LINK I provided, and try those "fixes". Can you provide something from Samsung saying this, or pro forum room, or some source other than you. I provided LINK to try to get it out of "read only" . I have been on Slick Deals for a while, and tons of people say stuff without backing it up. If you have been around a long time, you notice this too, right.

Now, I did notice a lot of people having problem with this card the last couple of months. But hard to know how much research they did. Or how good of a researcher they are. Provide Links from YouTube, google, reddit, Samsung, or message them. Thanks

I'm telling you if I get this problem, I will really research it, and talk to tech dept at samsung, and find reddit forum room to discuss this. I will find anything on YOUTUBE on this samsung issue. I dig deep!

p.s. I did talk about some issues that couldcause this problem, like recording video where the sd card can't keep up, and freezes, or playing a game from the card and it freezes. Or other issues, I personally would like to know what to avoid doing with this card, so I don't get that error. People are putting this in all types of devices and doing all types of stuff, we just got to figure out what corrupts the card , that then puts it in READ ONLY mode. The LINK I provided seems like VERY ADVANCED STEPS that a newbie wouldn't think of trying... if you have a card that is "READ ONLY", try those steps and report back, but only if you still have the card, because you have skin in the game.

To be very clear, I use microSD cards in smartphones, chromebooks, fire TV sticks and hd 8/10's. No problems. mostly media, movies, music, audio books, ebooks. Simple stuff, no gaming. Again no problems. But if I was to use these cards in cameras, security cams, gaming, I would have to make sure my microSD can handle it and check with others FIRST.

Hardware failures can cause your card to open in read-only mode to prevent further damage and data loss.

If the card itself has flipped read-only, there is nothing you can do

I did look at your link. It even says:
My claim does not contradict anything in your link. I said:
The fixes mentioned in that (and many other) links deal with external issues. Those are mostly issues with the filesystem, OS, card reader, etc. If the card's internal controller flips it read-only, that's a sign of a hardware issue. You don't have to believe me. In fact, I would encourage you to research the issue. Just a warning, YouTube and Reddit are not inherently reliable sources. Anyone can go on them and make any claims they like. There's a lot of bad info on both.

What causes the issue may relate to how the card's being used, or it may simply be the result of a faulty card. Simply recording video at a rate that the card can't keep up with is unlikely to be a cause. It will not accept more data than it can handle. However, it may cause the host device to have issues. Gaming and general file storage are also unlikely to be a problem.

There are two main things I think are more likely to be an external cause. One is using the card in a write-heavy application, like a security camera. Those should always use high endurance cards. In fact, using this card in that application will likely void the warranty. The other is disconnecting the card during I/O activity. Cutting power to flash media, while active (especially writing) can be very problematic. It's especially likely to be an issue with SD cards, as they lack power loss protection. Separately, this situation can also result in filesystem level corruption. This is why it's a very good idea to properly unmount ("safely eject") the card/drive, or properly power down the host device, before removing the card. Faulty readers or host devices are also another possibility.

You're right, without seeing the suggestions in those links, the average person likely would not think to try those methods. However, I'm not sure I'd go so far as to call them "very advanced steps." To me, that would be messing around at a firmware or raw flash level. Anyway, I hope you find my suggestions useful. I do do a fair bit of research into various storage devices/technologies but I definitely don't claim to know everything.

This is shipped and sold by Amazon.

They co-mingle 3rd parties crap with their own

MWink
I just went through the thread and YOU NEVER SAID you had this READ ONLY error at all. And I stated I just got 4 of them the last week and NEVER had this READ ONLY error.

We both NEVER did, at least in this thread.

Why do you even know if it is "fixable". You don't know! You kept saying it can NEVER be fixed. You personally don't know that , and either do I. This Samsung has a good graph.
Customer reviews
4.7 out of 5 stars
78,489 global ratings
5 star 84%
4 star 10%
3 star 3%
2 star 1%
1 star 3%

that is excellent user review rating. And plenty of people are giving this card 5-4 star rating of 94 percent with 78,000 global ratings.
I was thinking , "oh MWink , must have had this "read only" error and he researched problem.
Now, if the problem was massive this card would have 50 percent rating, ... we both KNOW that every product on amazon has a few people that give 1 star reviews ... of generally 3 percent , if it has around 94 percent 5-4 star rating.
I gave LINK to fix this problem, and how can you say " NOTHING WILL FIX this issue". Samsung doesn't say it, if in the FUTURE YOU get this issue, I would hope you would try all the suggestions to fix it before writing "NOTHING will fix this issue".

Your first post just said you researched it and "read only" issue can't be fixed. You never gave LINK or anything.

Now, maybe it can't be fixed, but maybe it is fixable ..... and obvious 94 percent of the User Reviews (5,4 star reviews) say the card works for them.

Did one of your cards get the "read only" error.

If you did get this "error", would you consider discussing this with Samsung tech?

If it is controller error, and can NOT be fixed, what does Samsung suggest people do, and maybe ask if lots of people get this error, how can they "fix" this, or ask under what conditions does Samsung see this "error" comes up.

Maybe add WARNING to not use this card on XYZ device, or in certain apps.

P.S. I wonder if the FIRMWARE on this card can "FIX" this issue.

You're right, I never said I had this issue with one of these cards, however I have dealt with it before. I have researched the issue and I have experimented with various fixes. You asked questions and I attempted to answer them. My comments are not specific to this card, or even Samsung cards, but most SD cards in general. Again, I never claimed there aren't read-only issues that can be fixed. I said that if the card flips ITSELF read-only (at the hardware level) it usually cannot be fixed. It is indicative of hardware failure.

Bringing up buyer satisfaction, or even incidence rates, are completely irrelevant to what I am discussing. Whether it happens 0.001%, 10%, or 100% of the time doesn't inherently affect how you deal with a particular failure. However, it probably should affect purchasing decisions. I'll also note that user reviews aren't always a great metric. Bad reviews can come from user error, unrealistic expectations, or issues completely unrelated to the product (like fulfillment issues). Undeservedly good ratings can result from promotions (free products, etc.), people who haven't actually bothered to use the product yet, unjustified removal of bad reviews, and so on. There's also the fact that many items on Amazon share the same listing, and some outlast potentially multiple revisions of a product. I generally suggest examining the content of recent reviews, for the specific model. By the way, even some especially unreliable products, with known defects, often maintain a health looking star rating. For example, the original variant of the Samsung 870 EVO.

For the record, I never made any claim one way or the other, about the reliability of the 512GB Samsung EVO Select MicroSD card.

No, not one of this model.

I wouldn't bother. Modern companies will almost never discuss the details I would be interested in. They will simply cite things like "trade secrets."

I'm almost certain they would suggest replacing the card under warranty. I can not imagine them answering if lots of people get the error. This could open them up to litigation. They would likely not acknowledge the issue, until they have some sort of fix or other method to resolve it.

I believe there are already warnings about not using them with things like security cameras.

I don't know if it would be possible, however I don't think I've ever seen a firmware update for an SD card.

Also, it's worth noting that this would only be relevant if there is a widespread issue with these cards. To be clear, I am not making such a claim.

You are a great writer, and you make very good points.

I'm just glad I could buy a 25 dollar 516gb microSD card, and mostly use it in chromebooks, and smartphones, for media consumption.

Hopefully we will have fun discussions on other stuff on SD. Peace!

Do you own this 516gb samsung card and would you recommend it , or do you have a brand you recommend, that you yourself use?

I bought one a while back but haven't done much more than verify its authenticity. As such, I don't feel it's appropriate to offer an opinion on this specific one. Historically, I've had good experiences with Samsung's EVO and Pro Plus MicroSD cards. I've found them to perform well and be reliable. Interestingly, the same cannot be said of Samsung's BAR Plus and FIT Plus USB drives. With those, I've experienced rapid, severe performance degradation. This has made me lean towards using MicroSD cards in a USB adapter (Samsung's is great), rather than USB flash drives.

As for other brands, SanDisk is the one I've seen fail the most. However, this may be partially offset by the fact that they're easily the second most frequent brand I encounter, after Samsung. Other brands can be hit or miss. I have had poor experiences with some Team Group flash media. I am also wary of other low tier brands, like Silicon Power.

I would highly recommend avoiding no-name brands, which you see all too often on sites like Amazon and Newegg. If their capacity isn't an outright lie, they're still probably garbage grade. The shocking part is many of these outright fraudulent cards/drives have generally positive reviews. I did a bit of a dive into it, after receiving a promotional email from Newegg, advertising a 2TB flash drive for $30 (2 years ago). On their site, the product had good reviews. It wasn't until I dug into the seller's rating that I found a few people complaining and offering evidence the drives were showing a fake capacity.

I generally stick to Samsung MicroSD cards because of their price, performance, and past experiences with them. Of course, I realize they too will likely have issues here or there. I usually only buy cheaper brands for really unimportant things, like if I'm going to be giving them away or if I want to test them out of curiosity.