Develop Bugs

32 gb sandisk

hi, i hope this is right place to put this and also to let you know i did do a search of the forum and couldn't find an answer...
i just bought a 32 gb sandisk micro sd card and inserted it into my galaxy s, i have tried to add thing to this via my pc and also via astro on my phone, each time it seems to get a little of the way and then the external sd card unmounts its self (at least i think thats whats happning ) and then i get an error on my pc saying the read/right disc was unreadeable, then my pc says that the external memory needs formatting before i can continue use, if i then go back into my phone i notice te external memory is no longer mounted, this is driving me mad, if anyone can help please do before i throw my phone out the window lol....i am using a rooted galaxy s with 8gb onboard memory

It sounds like you have a bad card. I would return it for a new one.

Let me guess, eGay. . . . .
I have 2 fakes sitting right here. . . . This is a huge scam.
Buy memory from reliable sources only.
my 16Gb card is a 1Gb in reality.

Hmmm...did you make sure that the USB mode is set to debug and then the dial up mode is off. This same thing happened to me last night. Make sure that's done. Restart the phone and THEN plug the cable in. I'm guessing it keeps flipping out and there's a red pyramid in the upper left hand corner?

Bad Memory
I believe you got a "fake" memory. I have experience of this before. A lot of programmer will be able to re-program the card from 2G to 32G or whatever the capacity they want. just google it, there is a free program will be able test it and tell you the real capacity your card has it. if the price is incrediblely low, there will be a problem. if you got it from ebay, just dispute it and get your money back.

Look for the program h2testw, it will tell you actual capacity of your card, likely 64-512mb only.

Yes, scams. You should only buy to respective shops. Sadly some of my friends bought things like 10pcs. Too bad they got scammed. I learned my lesson and it is just somehow like 3-5$ difference.

I'd say stick to Newegg and Amazon for memory purchases.

Which is the best company for 32 gig class 10's

I've bought 8GB and 16GB cards from those Chinese deal sites. They worked out alright. They weren't too experience. But I agree, if you want a 32 GB card, go buy a reliable brand from a credit-worthy source.

where can u buy cheap memory cards

Buymemorycards.co.uk
Sent from my GT-I9000 using Tapatalk

sdlopez83 said:
Which is the best company for 32 gig class 10's
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I've got the Patriot LX Series 32gb Class 10 Micro sd card in my Galaxy S, and it's awesome... was $99 with free shipping from newegg.com
http://www.newegg.com/Product/Produ...=patriot_32gb_class_10-_-20-220-547-_-Product
I've had great luck with mine, and it flies.. now it's $83.99 after mail in rebate with free shipping..

Newegg had the 8 gb transcend for 15... that thing is so fast 15 MB/s read and write. Was using a sandisk was awful.
Sent from my DROIDX using XDA App

what about sandisk or cnmemory? I used different memory cards from them, without problems so far.

I ordered a 32GB Class10 Lexar SD from Amazon compliments of swagbucks. Waiting for it to ship. Anyone used Lexar cards before?

crawler9 said:
I ordered a 32GB Class10 Lexar SD from Amazon compliments of swagbucks. Waiting for it to ship. Anyone used Lexar cards before?
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Lol. Im still waiting for the shipment as well being shipped next week. Ordereded that's what over for using free shipping.
Sent from my MB860 using XDA App

shadow7582 said:
what about sandisk or cnmemory? I used different memory cards from them, without problems so far.
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I'd say Sandisk is the best quality memory card you can buy. Class 2 and 4 Sandisk work great for WP7 or for running Android off of on a HD2. Class 2 and 4 cards generally have a better random access speed than class 6 or 10 cards. You only want higher class cards for digital cameras where you are writing a lot of file sequentially. For running operating systems where itneedsto read small amounts of data from many parts of the card quickly, a quality class 2 or 4 card works best.

sdlopez83 said:
Lol. Im still waiting for the shipment as well being shipped next week. Ordereded that's what over for using free shipping.
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Received mine today.

crawler9 said:
Received mine today.
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You should test the card with CrystalDiskMark and HD Tach to get the random read and write speeds and random access time. I'm curious as to how the class 10 Lexar rates in those speeds.

Need a recommendation on SD card

Hey everyone, I've never purchased one of these for a phone as they've always came with one. Anyway I'm looking for a solid recommendation for a fast 32GB SD card. I have a Tiger Direct local to me so I'll probably try to go their today once I have something to reference.
Thanks

A-data are safe
so are Transcend
Legit SanDisk are good, but they are always twice the price of either of the above

AllGamer said:
A-data are safe
so are Transcend
Legit SanDisk are good, but they are always twice the price of either of the above
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What about Class type? I see people say 4 is fine but then I see others that say either 6 or 10 for access speeds relating to pics and videos.

I will recomnend you buying a class 6 or higher; possibly a class 10. Samsung has it in both so u can purchase it
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Princew14 said:
I will recomnend you buying a class 6 or higher; possibly a class 10. Samsung has it in both so u can purchase it
Sent from my SGH-T989 using xda premium
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same here
don't buy anything less than class 6, too slow for a good fast phone experience, specially if you plan to run apps from the SD card

Don't do this. Look here: http://forum.xda-developers.com/showthread.php?p=15269669#post15269669

I use a class 4 32gb sandisk and the speed is fine. Lower class cards are more realiable and the average user cant tell the difference unless you're transferring large files or large quantities of files at once. My class 4 acts like a class 6 but is super reliable.
Id highly recommend a class 4 over a class 10. There's a thread around here if you search that will tell you the benefits of a class 4 and lower class against higher class cards.
Deebo took your bike too?

Just purchased 32GB san disk micro SD from amazon for $37 and it works great. Replaced my old 16GB where there was not enought space to keep my fav music library.
Sent from my Galaxy Tab 8.9 using XDA Premium

AllGamer said:
same here
don't buy anything less than class 6, too slow for a good fast phone experience, specially if you plan to run apps from the SD card
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isn't the only thing the class does is gauge the speed of transferring files to and from the sd card, not the actual performance?

camf3xu said:
isn't the only thing the class does is gauge the speed of transferring files to and from the sd card, not the actual performance?
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Higher class, like another poster said, will give you higher speeds for large file transfers. However, this comes (from testing) at a sacrifice in everyday use of read speeds on everyday smaller files (think gallery, music player, etc). That's basically a short summary of what other XDA members have found from testing. Personally, I picked up a 32GB card from SanDisk off of Amazon and am completely satisfied. You may have a slightly slower time adding all of your files initially, but you most likely won't notice the difference when accessing all those files later on the phone. Look up the card on Amazon and the corresponding reviews and decide for yourself. Hope this helps.
Sent from my SGH-T989 using xda premium

personally, i find those Class 10 to perform better for me.
the time it takes to write/read small files is negligent compared to the amount of time it takes to write/read large files like MP3, MKV, etc
those word documents/excel spreadsheets, pdf, notepad texts, loads up instantly on my Adata 32GB Class 10. and i got 3 of them
1 for music
1 for videos
1 for apps/games/docs/work
so again, that is yet another one of those where the benchmark says one thing, but real life usage shows otherwise

I use a PNY 16GB Class 10.

64 GB micro SDHC Card

Anyone tried it at your SGSII? What capacity is reported, if any?
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I believe highest supported on SGII is 32 gb.
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It will work. It works on all Android phones that are 2.2+.
Price is still high though.

not really, if you think about it
it's the same as you would be paying for 2x 32GB
so it's worth it if you don't want to keep removing the back cover frequently to swap SD cards

I thought that all 64gb cards were sdxc? And do our phones actually support that format?

sparky79 said:
I thought that all 64gb cards were sdxc? And do our phones actually support that format?
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minor correction there
SDXC vs SDHC, these are Technology terminology not format
the actual format of SDXC is ExtFAT you can see that in Linux as Extended FAT
SDHC uses the good old FAT32
so, if you want a SDXC card to work on a phone that does not read ExtFAT, you just need to format it as FAT32, and the phone will read it just fine.
most phones/tablets for the past 2 years are SDXC compatible hardware wise, software... that's just down to the kernel to see if they can support ExtFAT or not

I didnt know that, thanks. I wish I hadnt bought a 32gb card then.

The physical max supported patrition size for FAT32 is 128GB. I am ordering 64GB or 128GB card from Amazon. I have to know if tab supports it. Will share my results when it arrives.
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esdwa said:
I am ordering 64GB card from Amazon. Will share my results when it arrives.
Sent from my SGH-T989 using xda premium
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the Kingmax 64GB ?
those are okay, they have life time warranty, they do honour them, but it takes forever
they do die (corrupt) easily, i've had to replace 2 of them of a different size
but the replacements works fine, they are still kicking around my house in cameras and stuff
so probably they just have poor QA during production.
if it works, it works great for the longest time, if not it will die in a few weeks

Indeed, I am little concerned spending on unknown brand like Kingmax which is probably some knockoff. I see lots of MiniSD cards in 64 & 128GB sizes from Transcend, Sundisk and others but nothing in microSD size. I am also tempted to get 128GB miniSD for my GalaxyTab 8.9. I wonder if this would work as well.
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that's why i got the sandisk one and paid that little extra just to know it will work without fail
Kingmax is not a knockoff, it's a good brand, but not as famous as ADATA or Transcend
those 3 pretty much started at the same time, some how Kingmax was left behind, while the other 2 is ramping up good against Sandisk and Lexar

[Q] 16GB class 2 vs. 32 GB class 4

I currently have 16 GB class 2, and i am about to but 32GB class 4.
what is the diffrences beetween them ?
The games will work smother with class 4?

I have a 32 GB class 10 micro sd card, bit I didn't really notice any difference in speed compared to the 8 GB class 2 micro sd that came with the phone...
Sent from my R800i using XDA

The class rating of an Sd card is based of off its Write speed. So a 16gb class 2 would write at 2mb per second, the 32 gb class 4 will be able to write at 4mb per second, There is a slight "catch" however when using larger storage Sd cards, its been explained to me in the past that when you go up in storage it takes the device (phone, pc, camera ect.) longer periods of time to initially read the card itself because its now reading through more storage space then before (even if that space is empty in places).
With that in mind, the 32gb class 4 will Write files to it self at a faster speed then the 16gb class 2, but it will take your phone longer periods of time to access the information on the larger Gb card, so will games play smoother off your Sd card, technically no, they wont. But what you will achieve are faster data transfer rates when moving files to and from.
Also take into account that the class rating system isnt exactly perfect. For instance my 32gb class 4 is rated to write at 4mb per second, but its achieved 6mb per second depending on the files, and Im currently using a 32gb class 10 which most of the time writes data at 12mb per second.
I hope this helps

I think the best would be those samsung or sandisk ultra class6 cards.

julianpaul said:
I think the best would be those samsung or sandisk ultra class6 cards.
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I'm using a Samsung 32gb class10 "high speed series" as marketed per Samsung, it works very well. But what works for me isn't always for everyone
Sent from my R800x on CM9

I just bought one of these a couple weeks ago, it was $29.95 free shipping but its still a great price and its getting consecutaively around 7-8mbps. I replaced my 32gb Sandisk class 4 with it... I had the $$ and figured why not.
http://www.adorama.com/IDSMUMSD32G....ate&utm_campaign=Other&utm_source=rflaid62905

Why don't you just bought class 10 SD card..?
How much the price different between class 4 and class 10 btw...?

I dont wanna start a you know what measuring contest here but . . .
Samsung "High Speed Series" I bought from ebay 38$
http://www.ebay.com/itm/Samsung-32G...gital_Camera_Memory_Cards&hash=item2c61981fc1
10-12 mb's per second
Even though Samsung it's selling for 80$ direct from manufcaturer, heres the specs link from their site
http://www.samsung.com/us/computer/memory-storage/MB-MSBGA/US-specs

OK!!! Thanks

dhani88_TotallyNooob said:
Why don't you just bought class 10 SD card..?
How much the price different between class 4 and class 10 btw...?
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There was some other thread around where people found that class10 cards had higher latency and slower access times than the class4 ones. So they're not really suited for mobile phones where quick data access is more important than high transfer rates.

julianpaul said:
There was some other thread around where people found that class10 cards had higher latency and slower access times than the class4 ones. So they're not really suited for mobile phones where quick data access is more important than high transfer rates.
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I still believe storage size has a greater effect on access time then the class rating, classes are read/write speeds but more space takes longer time to read. The class itself being suitable, depends more upon the manufacturer of the sd card, and the manufacturer of the device and the device its being used in. A 4gb class10 is going to give you great performance in your device where as a 32gb class10 will indeed function a little slower but depends if you need all that space or not. I'm no expert but that has been my experience.
Sent from my R800x using CM9

jgregoryj1 said:
I just bought one of these a couple weeks ago, it was $29.95 free shipping but its still a great price and its getting consecutaively around 7-8mbps. I replaced my 32gb Sandisk class 4 with it... I had the $$ and figured why not.
http://www.adorama.com/IDSMUMSD32G....ate&utm_campaign=Other&utm_source=rflaid62905
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Yeah, I have that card too and it's a big improvement from my prior 16GB class2 Sandisk card

I have my 32gb class 4 sandisk on my xperia. So far so good with games.
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I've got a sandisk 32 gb class 4 and I tried out my bros class 10 32 gb, can't remember what make it was but damn is that thing fast read/ write speeds are great and playing games is cherry pie
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Would it hurt an sd card to bump up the read/write speed beyond what the card is rated for?
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beez1717 said:
Would it hurt an sd card to bump up the read/write speed beyond what the card is rated for?
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It will decrease its "lifespan" but probably won't kill it, I think the apps2sd script bumps things up drastically and I didn't have any troubles for the while I was using it, but the SD card manufacturer and its class might have some effects on the bumped up lifespan .. probably good to at least make sure you have a spare!
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I indeed have a spare one that I am using in my OG droid. Lol. I use that phone as an ipod touch like device. Too bad I don't have a sim card because I'm on cdma. If I were, then I could use my OG droid when I want to use a slimmer phone that has a physical keyboard. However, SwiftKey has me not missing my physical keyboard.
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(...What's the right micro sd card for my galaxy s4 ?=)

Hi guys I have a question I have a problem deciding what kind of micro sd card to buy. I need more rom for my games and music . And 16 gb is not enough some people recommend me samsung class 10 but I don't know what kind to get . But I know I want a 64 gb sd card please guys any suggestions thanks
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Any card that is class 10.
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I have a SanDisk 64GB micro SD class 10 that works just fine. It worked great w/o an problems since my last phone (moto RAZR hd)
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Go for the 64gb micro sd if you want to download so many apps and games, etc.

They really need to stop dragging their feet with 128GB microSDXC

muqali said:
They really need to stop dragging their feet with 128GB microSDXC
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I definitely agree !
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64gb is an overkill. I recommend 32gb Class 10.
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32GB Samsung C10 is around $20ish and well worth it. Ive been using the same one for years and thats why I love phones w/ card slots. Switching devices isnt a nightmare when everythings saved to your card.

What's wrong with a 32 GB class 4?i noticed no different switching from a 8 GB class 10 to a 4.
Sent from my SGH-M919 using xda app-developers app

SanDisk 64GB card. Perfect if you're storing music, movies, video game ROMs, etc.

kevinrubio1 said:
What's wrong with a 32 GB class 4?i noticed no different switching from a 8 GB class 10 to a 4.
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Nothing is wrong with a 32gb class 4, but do you really want to bottle neck your 600-700$ s4 to 1mbps write speeds when it can record around 17mbps? It'll only cost around 20 something bucks for class 10, by no means a priority in anyone's life but in the case of this Particular user looking to purchase, if he has the spare cash I advise him to a class 10 32gb.
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I also recommend 32GB class 10.
You will need it also for shooting full hd videos.

I too have a Sandisk Ultra 32 GB class 10 I got on sale for $30 ($50 off MSRP) at a local office supply store last minute before a vacation. Since I bought it, I have seen it cheaper online, but I didn't really have time to wait. I had just upgraded from an 8 GB class 4 that I have been using for about 3 phones now. The new card also came with another SD adapter so I can put the card into the reader on my laptop. I already had one adapter from my old card, but having two is nice when transferring files between two cards.
I have a little boy so I am always taking pictures and videos of stuff he is doing or funny faces he makes, and I can tell you first hand that moving pictures and videos around into different folders in the gallery is WAY faster now. I also have a photo frame widget on my home screen that cycles through some pictures, and on reboot, the photos populate the frame sometimes before the stock clock widget even comes up. I can only imagine if apps are running from the SD card that would be massively improved too.

I've been using the Samsung Ultra 64gb card since day 1 & it's been working flawlessly.
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I use a 64GB Samsung Pro(no such thing as Ultra^). Don't beelieve the advertised speed of 70/30, I get R/W: ~18.26MB/13.17MB. The SanDisk 64GB and 32GB models had production problems with a some bad batches, so it's up to you if you want to risk getting old stock from a store that might be bad. Other than that, just remember to get Class 10 UHS-1. Apparently AOSP doesn't support ExFat so you'll have to format it to Fat32 if you want to use that.
One reason to use 32GB would be for the supposedly higher speeds available such as the SanDisk Extreme variant which is twice as expensive. Don't believe the advertised 80/50 either.

There is a 64 GB Ultra: http://www.amazon.com/SanDisk-Micro...&qid=1374727504&sr=8-1&keywords=sandisk+64+gb

suprmallet said:
There is a 64 GB Ultra: url
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SanDisk* not Samsung like he posted. That Ultra is also slower than the Samsung Pro. The SanDisk Extreme might be a tad faster but don't believe the 80/50 claims.

Is you must get the 64gb I recommend class 10. Fastest write/read speed. If not, you can buy maybe a class 6. Hope I helped.
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Newb question: If I get a new card do I just plug it into my laptop, copy everything over from my old card, replace the card and go? All that stuff in the Adroid directory looks important.