Develop Bugs

Just got a 16gb Class 10 SD card

I just received my 16gb class 10 microSD today. I got it from Buy.com
http://www.buy.com/prod/oem-16gb-16...class-10-card-reader/q/loc/101/220244316.html
It was $32 after tax.
It comes with an adapter and a reader, which basically looks like a little usb flash drive that you put your memory card into and then plug into the usb port.
So far, no problems with it. It is actually like 14.9gb, but I guess thats just how it goes. It's been holding and managing files well, but I don't really know how to accurately test it. I've been downloading a lot of songs and pictures, taking pictures and video, moving files around, deleting things, and its handling everything, no errors.

Just one more update...
The card is still working well. No problems what-so-ever. If you're looking for a good LEGIT 16gb card, this one is a good deal.
I've just noticed that nobody really follows up on a review for batteries or sdcards, they only talk a lot.

jasongthang said:
Just one more update...
I've just noticed that nobody really follows up on a review for batteries or sdcards, they only talk a lot.
Click to expand...
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Most people are looking for speed tests to validate a card being the class that it claims. Since there are so many ones that tend to exaggerate their speeds.
Perhaps run a speed test on the card and post the results. You can find some freeware ones doing a Google search. I personally have used Crystal Disk Mark and it worked fine.
http://crystalmark.info/software/CrystalDiskMark/index-e.html

You could try SD tools app. I bought a class 4 16g sandisk.
I modified the read ahead to 2048 but didn't do a test before dunno if it helped
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ok hows this? I didnt change any sd card/storage settings.

That's niiice

Looks nice...I might have to buy one because I think my POS Wintech 16gb cl10 card is starting to fail on me.

My 8 gig class two that I've had through two completely different phones and countless downloads and erasing files as well as a few reformats has similar speeds after using SD speed boost...I've hit higher but scaled it back as I was afraid of hurting it.

Post a pic, lets see what urs comes in at.
urrgevo said:
My 8 gig class two that I've had through two completely different phones and countless downloads and erasing files as well as a few reformats has similar speeds after using SD speed boost...I've hit higher but scaled it back as I was afraid of hurting it.
Click to expand...
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That's quite a price. I prefer Kingston but you can only get a 16gb Class 4 for that price.

jasongthang said:
ok hows this? I didnt change any sd card/storage settings.
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Awesome. I tested my slow 8GB card and it doesn't even come close to that. Just bought one of these. Thanks for the speed test. Hopefully mine is as fast.

I just bought this today and hopefully it will be here by the end of the week. I will post some screenies of my speed test when it comes in as well. If mine has this same speed this is a great deal for anyone looking for a 16gb card. Anyone else who bought this should post some screenshots of their speedtest results on this card. The more we have verify the speeds the more likely we will know whether this is good or just a gimmick or just luck of the draw on speed.

Bought one of these for my 2nd EVO today. Will post speeds when SD card received and tested. I have a 32GB Class 10 in my 1st EVO and it screams but don't need quite that much storage capacity in 2nd EVO. Hope it turns out to be a good buy with great speed.

so i just did a test on my class 2 card i bought from frys, i get a 10 mb/s write but only a 5 mb/s read. this probably explains all the time i have to wait for my pictures to load in my gallery.

[Q] SD Card problem

Hi all.
I have a 32 gb class 6 card (Topram) which I purchased about 2 weeks ago. I partitioned it with a ext2 and converted to an ext3 and had been running Mik 3DSupersonic with a2sd with no problems. Today I was copying the contents of the card to my computer using a card reader and something went wrong. Upon inserting the SD card back into the phone it was unrecognized. I have tried partitioning it with my phone through RA Anon recovery (it completes almost instantly) unsuccessfully and also through my Windows 7 computer without success. Are there any tricks I can try or is this brand new card shot?
Thanks for any insight.

I can pretty much guarantee you have a fake card. Where did you purchase it from?

sitlet said:
I can pretty much guarantee you have a fake card. Where did you purchase it from?
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Really? It was working fine for over 2 weeks. I purchased it through buy.com from a third party seller. I doubt it.

Yeah sounds like a 2gb card hacked to read 32gb until you try filling it up past the 2gb. If you don't mind me asking, how much did you pay for it?
Sent from my nike hating evo!

THREESTRIPEBRAND said:
Yeah sounds like a 2gb card hacked to read 32gb until you try filling it up past the 2gb. If you don't mind me asking, how much did you pay for it?
Sent from my nike hating evo!
Click to expand...
Click to collapse
If you're right it had to be bigger than a 2gb because I had upwards of 9 gb on it when it was working. I paid $46.75 Here's the link http://www.buy.com/pr/product.aspx?sku=219375390
I've contacted Topram about a warranty replacement. I'll keep you posted on the outcome.

bytes2bits said:
If you're right it had to be bigger than a 2gb because I had upwards of 9 gb on it when it was working. I paid $46.75 Here's the link http://www.buy.com/pr/product.aspx?sku=219375390
I've contacted Topram about a warranty replacement. I'll keep you posted on the outcome.
Click to expand...
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Topram is really not a very good brand. SanDisk is the only manufacturer that actually has a working 32gb card out right now.

sitlet said:
Topram is really not a very good brand. SanDisk is the only manufacturer that actually has a working 32gb card out right now.
Click to expand...
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I learned my lesson now. I wouldn't have even considered it except it had very good reviews.

i have a small question about sd cards, i have a sandisk 8gb class 4 sd card that i am using and i used the app SD Tools to test the speeds of my card and my results were as if the class of my card was higher than 4.....but i dont fully understand what speeds are for each class, from what i have read a class 4 should have 4mb of write speed, but mine ranges from 8-10 on the tests...does that mean my card is like a class 8 or 10?...if anyone could clear this up for me that would be awesome...ill put a screenshot of my test results if that would help also...
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this is the fastest results btw

Damaged SD card after reset?

I constantly get the notification "SD is damaged. Try reformatting it." This will happen at least a couple times a month and only when I turn off my phone (to swap batteries). Anyone else have this issue?
Also, it seems that when I view pictures and thumbnails after turning off my phone, images will be and look distorted. Here's an example:
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Any input would greatly be appreciated! Thanks!
Sent from my SPH-L900 using Tapatalk 2

Hey, I also have been getting the same issue. It seems that the more I flash or reflash a new rom, the more I keep getting my sd card read as damaged or it doesn't even mount. It also happens a lot when I do a Hot Boot, and also when I reboot into my TWRP recovery, and my sd card won't mount in recovery, and if do a full wipe before install, then I end up with no files since internal sd gets wiped, so I store all my roms and zips on ext sd and if it doesn't mount or read I'm stuck with a full wipe and nothing to flash. It used to happen once in a while like once or twice a month, but like a mentioned, it gets worse and worse with every flash, and not it happens almost evey time, especially, I am not sure if its all the roms or just some of them, but when my screen times out and goes to sleep, after I wake it, it will rescan sd card, and its a hit or miss, sometimes it scans and all is good, and sometimes is scans and says either sd card damaged or sd card not mounted. And only pulling battery and rebooting gets it to work again!
Unfortunately, I don't know why, I thought maybe it's my sd card because I bought a 2 pack of 32gb each and when I had my first Note 2 N7100 my first 32gb also started not reading properly and then with a few weeks of use it just stopped working and I lost all my data and it no longer reads at all, not in phone nor pc.
So when I started having this issue with my second sd card, now that I have my second Note 2 SPH L900, I thought it was that the sd cards were faulty, but since you have similar issues, maybe it's the phone, or the roms...? If you find a fix please PM me and let me know.
Thanks
G3nk5t42
Sent from my SPH-L900 using xda premium

Hmm, I was thinking it might be my SD card too. It's a lexar 32gb class 10. Might change it to a different one and see if it's the issue.
Since no one is responding with over 400 views on this thread, I'm assuming it might just be a faulty SD card in both our cases. Since I'm usually using popular roms and it seemed to happened to any rom I use from what I can tell (or remember) . Will definitely let you know.
Sent from my SPH-L900 using Tapatalk 2

Same issue here. Also using a 32GB Class 10. I've swapped it out to a new 32GB Class 10 of the same make and I'm still having the issue.

Half of my led zeppelin collection disappeared from my SD card over the weekend. No idea what that's about, so I can relate.
Sent from my SPH-L900

Same here I reboot my phone and everything is now gone cane even see any even if I put the card in the computer 32g class 10 this is crazy all pic and music everything gone
SGN2

What roms are you guys using?
Sent from my SPH-L900 using Tapatalk 2

The rom I used were JellyBomb v16, 18, & 19; Lab Rats v2.3 & 2.4.5; CM10.1 Nightlies, Carbon Rom Nightlies, Swamp Monstah v2.2; Back To Goodness, and I think some other one I can't think of. I was thinking at first maybe it is a kernel problem because yesterday after I flash the Saber v25 kernel it completely killed my SD that not even my pc reads it anymore! But then I have noticed that it seems that everyone using a 32GB sd card despite the manufacturer has had this issue so maybe its just something with 32GB sd cards. But then I also googled the issue and people using Samsung Galaxy S3 and S4 are having same issues after flashing roms, so it might be a Samsung issue, though I don't recall having this issue with my last phone, the Samsung Galaxy S Relay 4G, and when I sent SanDisk a heated message since in the last 4 months I have had both the 32 GB Class 4 SanDisk Micro SD Cards that I bought in a pack die completely losing all my data, I noticed in the FAQs that they claim its a bug with Android 4.x OS thats causing sd cards to die, but I've had several 8GB ones that I've used from Android 2.x all the way to 4.2.2 and they have been completely fine!
So I personally am as stumped as all of you, and would like some sort of definitive explanation before I end up losing another sd card!
Sent from my SPH-L900 using xda premium

Thanks for that post. Can you let me know, for how long should I place my sd card on something around 100°? I really don't want to damage the out of card because I emailed Sandisk and they might replace my card if I still have warranty, so it would suck if they agree to, but then decline because they found out I melted the card or something, but same time I really need to get the data off of it...
Sent from my SPH-L900 using Tapatalk

I have had two cards go bad recently both Sandisk 32gb class 10
Sent from my SPH-L900 using xda premium

Sd damaged? Is this normal for android?

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Yo. Tablet shut down and when I rebooted, I saw this messae. Is tnks a commonandroid problem?
Sent from my SM-P600 using Tapatalk

it is common for the galaxy s3 to damage sd cards...

The same happened with Note 3 twice with two different card (64GB and 32GB)

What brand is the SD card? Maybe it's Made in China junk. Even Sandisk have had batches that suffered premature death. I've never had any issues with several Samsung phones since the original Galaxy S but I stick to established brands like Samsung, Delkin, Sandisk, etc.

mi7chy said:
What brand is the SD card? Maybe it's Made in China junk. Even Sandisk have had batches that suffered premature death. I've never had any issues with several Samsung phones since the original Galaxy S but I stick to established brands like Samsung, Delkin, Sandisk, etc.
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Sandisk 64gb, toshiba 32gb

I had a pny 64 die in it and a 64 sandisk that works fine in every other device start acting up the way he pny did before dieing. a 32gb sandisk is working fine now with no hiccups. I'm not risking another $50 card in it whether it's the tablets fault or not.
I shoulda jumped on that 35 bb deal though.

I am using sandisk 64gb class 6 on my note 10.1 2014 with no problems so far
Sent from my SM-P605 using XDA Premium HD app

My S4 had that message happening with a Sandisk Extreme 64gb card a lot but it would always work still. Formatting it fixed it. My Samsung 64gb Extreme card hasn't had any issues yet in my Note. If you haven't formatted it yet, I would try that.

I had similar problem with the first note 10.1 2014, it had problem with the microsd slot. the card would work for a few minutes and then it would stop detecting it, showed corrupt sd card errors. I think the microsd module was broken, it "sunk inside", so it was really hard to insert the microsd with just fingers. I exchanged it for the new one.
The sd card works fine now, but this too has that weird defect with the module sunk in, i have to use the edge of another microsd card to fully insert one inside till it clicks in.
Not sure if anyone else have the same problem, but I may return this again and buy one from different store.

the tablet reboot when installing/update apps from play store will the sd card in (SanDisk 64gb).

Tab S 8.4 Max Memory Card Size

Well when it first came out (the tab s 8.4) only 128gb micro SD cards were the largest available.
So my question, can we assume that any micro SD XC 1 card will work fine in this tablet?
I ask because I stumbled upon this 200GB card now available.
http://www.amazon.com/SanDisk-micro..._UL160_SR160,160_&refRID=00EQDPJ5PMBTHB0A266Q
Or is this tabs card slot locked some how to only except up to 128GB max?

If the Tabs S works with XC 1 cards have an 128gb one and it works fine, I suppose an 200gb that is XC 1 should work as well as an guess.
John.

Tinderbox (UK) said:
If the Tabs S works with XC 1 cards have an 128gb one and it works fine, I suppose an 200gb that is XC 1 should work as well as an guess.
John.
Click to expand...
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Can anyone recommend a card with decent speed?
I'm using Sandisk 32 GB and the transfer speed sucks... avg around 10mb/s when transfering files from my tablet to PC via USB cable.
http://www.amazon.co.uk/SanDisk-MicroSDHC-Memory-Card-Frustration-Free/dp/B00422GXXA

Get the biggest card you can afford, a 64gb or 128gb, I only ever buy Samsung flash cards for years for my camera`s phones and tablets, I all do a exhaustive error test when i get them and i have never found an error or had one fail, So i don't have any experience of other brands but Sandisk is a good brand.
I just bought an Samsung 128GB Evo+ the other day for £36 and i am just about finishing the error testing, It is showing a write speed of 20.46mb/s and a read speed of 63.56mb/s these are just basic number using an USB 3.0 card reader on my notebook, I have an crystal disk mark test results if you want to see them.
My T800 10.5" has formated my Samsung 128GB EVO+ as ExFat file system, benchmarks should really be run with the card in your Tab S for real world results.
John.

Thanks! Time to test out Samsung sd cards then.

Highly recommended Samsung evo cards. Its all I use now. Good value for money.

A few speed test reviews on Amazon say the Samsung 128GB EVO+ is not very good as the 4K file write speed is very low, But i dont write anything that small, even ebook files or mp3 files are hundreds of mb/s
Below are benchmark run on my Notebook using an USB 3.0 card reader.
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I will post a couple of benchmarks with the Samsung 128GB EVO+ in my T800 EDIT: Write speed seems to be limited to 34mb/s i wonder if this af fast as the card reader can go, as other tests have show tha same slow read speed
John.

I personally never had any issues with Sandisk. I have really old Sandisk cards laying around (64mb) and they still work fine.
I'm actually scared to try a different brand with the good luck I have had with Sandisk.

xdaq said:
Can anyone recommend a card with decent speed?
I'm using Sandisk 32 GB and the transfer speed sucks... avg around 10mb/s when transfering files from my tablet to PC via USB cable.
http://www.amazon.co.uk/SanDisk-MicroSDHC-Memory-Card-Frustration-Free/dp/B00422GXXA
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I am in the US but this is what I am using now. The 32gig one. Go with the biggest you can afford to be honest. Make sure its class 10. Always buy from an official Sandisk seller on Amazon to avoid fakes.
http://www.amazon.co.uk/SanDisk-And...e=UTF8&qid=1450909963&sr=1-2&keywords=sandisk