Develop Bugs

New SD card questions

I have an 8 gig SD card not sure what class it is but I wanna buy a 16 gig class 8 if I get it and switch it for the one I have now will my phone still be rooted??
Sent from my swiper

lol, yes it will be.

Just be careful to copy over the files. Especially if you have any apps on your sd card.

who makes a class 8 card?
Sent from my PC36100 using XDA App

clark 1 said:
who makes a class 8 card?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Samsung, sandisk, pny, lexar and patriot all have class 8 and 10 floating around the interwebs but the evo doesnt need anything higher than a 6 unless u want to transfer alot of data between your phone and pc since the ohone wont read or right faster than class 6 speeds
Sent from my SPH-D710 using xda premium

-EViL-KoNCEPTz- said:
Samsung, sandisk, pny, lexar and patriot all have class 8 and 10 floating around the interwebs but the evo doesnt need anything higher than a 6 unless u want to transfer alot of data between your phone and pc since the ohone wont read or right faster than class 6 speeds
Thanks, never knew that. I thought it went from class 6 to 10. Guess I wasted my money on a Samsung class 10 card then....
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Sent from my PC36100 using XDA App

They make class 2-10 but the evo just doesnt have the hardware capability of going past true class 6 speeds however most of the new phones can handle class 10 so when u upgrade u wont need a new card if you want your class 10 to perform better in the evo u can force it software wise by using a 2mb /2048kb cache size on the sd card sd speed increase on the market by daniel meriman works good for this and can be set at boot there is a chance of damaging the card or slot by doing this but i havent had any issue yet and ive been tweaking my sd speed for a long time now
Sent from my SPH-D710 using xda premium

Its actually sd booster by daniel mehrmann had to double check that and for somereason i couldny edit my previous post
Sent from my SPH-D710 using xda premium

I've actually been using system tuner pro to boost the sd card at 2048Kb while running apps and cache on dta2sd, so far I'm impressed....
Sent from my PC36100 using XDA App

Which 64gb sd?

Hi boys/girls,
I'm searching for a 64gb sd card but im not sure which one to take.. Id like a fast one xD
Any tips u can give to this noob??
Sent from my GT-N7100 using xda premium

I have the Sandisk which is fine for me. Still don't understand that my old Nokia N97 already had 32gb whereas the superduper quadcore hype devices of today are still stuck at 16gb internal memory. These should have been at 64gb stock. Ah well...
Sent from my GT-N7100 using xda app-developers app

I have a sandisk one as well (class 10 sdxc). It's rated at about 30mbps vs the normal 10mbps. Works great so far.

AskinSavascisi said:
Hi boys/girls,
I'm searching for a 64gb sd card but im not sure which one to take.. Id like a fast one xD
Any tips u can give to this noob??
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Try to find ones that labeled UHS-1 (or UHS-I). If you want use torrents or others extremely high IO operations buy only ones with >40MB read/write specification (actual speed will be lower), otherwise stick with those with >20MB read/write.
ADATA has UHS-1 series 45MB Read/Write
SanDisk has UHS-1 "Mobile Ultra" 20MB Read/Write and UHS-1 "Extreme" 90MB Read/Write
List of course is incomplete, and all of UHS-1 labeled card also have Class10 label (because there is no higher Class)
Other that SanDisk "Mobile Ultra" will be expensive at 64GB and hard to find..

I've read somewhere Samsung micro SD 64gb is slightly faster than Sandisk one by a few mb/s transfer speed.

Ty for your answers peep.
Sent from my GT-N7100 using xda premium

I recently bought a 'SanDisk microSDXC Ultra Class 10 64 GB' and am very happy with it. I even managed to watch a 1080p movie with lossless DTS sound with it recently without even the slightest problem.

I also went with the Sandisk 64gb one, I formatted it in exfat with windows 7 and its been great for movies.

Great! Do u guys have an idea where i can get 1
Sent from my GT-N7100 using xda premium

AskinSavascisi said:
Hi boys/girls,
I'm searching for a 64gb sd card but im not sure which one to take.. Id like a fast one xD
Any tips u can give to this noob??
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
I recommend 64gb sd card class 10 from amazon

Ty for the reply. Got allready 1 for like a month and im happy with it xD
Sent from my GT-N7100 using xda premium

Tell me your opinion about swap memory

I have a plan to buy a 16 GB class 10 sd card, and make a swap partition.
What do u think about that, because i have heard a few opinion about that. somebody said that swap is not good for our sd card, the other one said that class 10 sd card is good in writing speed but it doesn't good in random writing which it's mean class 4 is better, and many more
I just ask for your opinion, and probably u can give me an advice
Thx in advance :beer:
Sent from my GT-S5660 using xda app-developers app

Some Swap scripts arent good because they decrease sdcard life but i have app named Ram Expander (Swap) which i bought from play store and its great! U can set swap file upto 2GB and increase ram! I have 602MB swap! And my memory total is 880MB
Sent from my GT-S5660 using xda app-developers app

class 10 is definetely better than class 4.
gettin me a 32 gb class 10, not for my gio though, for my ipad to watch movies on it
Sent from my GT-S5660 using xda app-developers app

voetbalremco said:
class 10 is definetely better than class 4.
gettin me a 32 gb class 10, not for my gio though, for my ipad to watch movies on it
Sent from my GT-S5660 using xda app-developers app
Click to expand...
Click to collapse
I dont even know myself if what class my sdcard is! Only know my Memory card is SanDisk 2GB. Anyone knows an app or a way to check out my sdcards class?
Sent from my GT-S5660 using xda app-developers app

batman38102 said:
I dont even know myself if what class my sdcard is! Only know my Memory card is SanDisk 2GB. Anyone knows an app or a way to check out my sdcards class?
Sent from my GT-S5660 using xda app-developers app
Click to expand...
Click to collapse
Go pull it off..
And then take a look at your sdcard, if there is a number inside a small circle, that's your sdcard class
Ussualy class 10 and 6 are written, but class 2 or 4 not
U could check it via sdtool too..
Class of sdcard means the minimum write speed of that card, if u found ur average writing speed 5 or 4, below 6 it must be class 4 sd card
That's what i know..
press thanks wont hurt ur finger :beer:
Sent from my GT-S5660 using xda app-developers app

junnickbefore14 said:
Go pull it off..
And then take a look at your sdcard, if there is a number inside a small circle, that's your sdcard class
Ussualy class 10 and 6 are written, but class 2 or 4 not
U could check it via sdtool too..
Class of sdcard means the minimum write speed of that card, if u found ur average writing speed 5 or 4, below 6 it must be class 4 sd card
That's what i know..
press thanks wont hurt ur finger :beer:
Sent from my GT-S5660 using xda app-developers app
Click to expand...
Click to collapse
Yup found it! Class 4 my sdcard is!
Sent from my GT-S5660 using xda app-developers app

There is a huge thread somewhere here about SD cards and I got the idea that a classe 4/6 is better than a class 10 for this kind oh usage. I understood that a class 10 SD card is better for hd and recording videos but for random writing speed, lower classes are better.

ToneJeco said:
There is a huge thread somewhere here about SD cards and I got the idea that a classe 4/6 is better than a class 10 for this kind oh usage. I understood that a class 10 SD card is better for hd and recording videos but for random writing speed, lower classes are better.
Click to expand...
Click to collapse
Yeah, just like what i though..
And this is what i got from another thread :
" Class 2 and 4 cards have better random access speed and random read/write than class 6 or 10 cards in general. To get higher sequential write speeds, manufacturers sacrifice the random access speeds. That's just how it is.
The best all around card I've ever found is Sandisk class 4.
My 32gb Sandisk class 4 outperforms any other class 10 or 2 32gb card I've tested in the random access and random read/write speeds. That's what's most important when using with WP7 or Android when using it for apps or OS files that need to be accessed quickly. Class 6 and 10 cards are setup to initialize the area of the card that is about to be used to make the sequential write/read quicker, but it takes extra time in the beginning to do the initialization. If your using the card where you need to access small bits of info from various parts of card quickly, you will do best with class 2 or 4.
Most people seem to assume that the higher the class, the better the card is for everything, but that's not how it is. Different purposes need different kinds of speed... cards with higher sequential speeds have lower random speeds."
Now i understand why my camera using class 10 sdcard
Sent from my GT-S5660 using xda app-developers app

just ordered a sandisk class 10 becaus I assumed that it would all be faster using FAT32, ext4 second partition and planning to add a third swap partition as well ... :crying:
well ... gives me a change to try and test both Samsung 4GB class 4 SDCARD vs SanDisk 8GB class 10 SDCARD

ty for informations guys
but what about im using it just for storage example: mp3
is there a differec for class 6 or 10 or 4 ?

This sounds cool.
Can anyone tell me how to get a good swap memory without memory expander?
Does marcins kernel support it?
Sent from my GT-S5660 using xda app-developers app

mjsamet said:
ty for informations guys
but what about im using it just for storage example: mp3
is there a differec for class 6 or 10 or 4 ?
Click to expand...
Click to collapse
Of course it's different each other..
As long as it doesn't need random access, i think class 10 is good, because it has hi-speed sequential writing speed
Sent from my GT-S5660 using xda app-developers app

batman38102 said:
Some Swap scripts arent good because they decrease sdcard life but i have app named Ram Expander (Swap) which i bought from play store and its great! U can set swap file upto 2GB and increase ram! I have 602MB swap! And my memory total is 880MB
Sent from my GT-S5660 using xda app-developers app
Click to expand...
Click to collapse
How can u increase the ram size...!!!!
Swap dose increase the internal phone memo by clubbing it with d swapped sd partion
Sent from my HTC Wildfire S A510e using xda app-developers app

junnickbefore14 said:
Of course it's different each other..
As long as it doesn't need random access, i think class 10 is good, because it has hi-speed sequential writing speed
Sent from my GT-S5660 using xda app-developers app
Click to expand...
Click to collapse
ok ty:good:

rishab.jain2890 said:
How can u increase the ram size...!!!!
Swap dose increase the internal phone memo by clubbing it with d swapped sd partion
Sent from my HTC Wildfire S A510e using xda app-developers app
Click to expand...
Click to collapse
Swap is ram on sdcard not internal memory!
Sent from my GT-S5660 using xda app-developers app

junnickbefore14 said:
Yeah, just like what i though..
And this is what i got from another thread :
" Class 2 and 4 cards have better random access speed and random read/write than class 6 or 10 cards in general. To get higher sequential write speeds, manufacturers sacrifice the random access speeds. That's just how it is.
The best all around card I've ever found is Sandisk class 4.
My 32gb Sandisk class 4 outperforms any other class 10 or 2 32gb card I've tested in the random access and random read/write speeds. That's what's most important when using with WP7 or Android when using it for apps or OS files that need to be accessed quickly. Class 6 and 10 cards are setup to initialize the area of the card that is about to be used to make the sequential write/read quicker, but it takes extra time in the beginning to do the initialization. If your using the card where you need to access small bits of info from various parts of card quickly, you will do best with class 2 or 4.
Most people seem to assume that the higher the class, the better the card is for everything, but that's not how it is. Different purposes need different kinds of speed... cards with higher sequential speeds have lower random speeds."
Now i understand why my camera using class 10 sdcard
Sent from my GT-S5660 using xda app-developers app
Click to expand...
Click to collapse
I know its a silly question...err....but wht are sequential nd random writing speeds wrt micro sd cards...?
Sent from my HTC Wildfire S A510e using xda app-developers app

rishab.jain2890 said:
I know its a silly question...err....but wht are sequential nd random writing speeds wrt micro sd cards...?
Sent from my HTC Wildfire S A510e using xda app-developers app
Click to expand...
Click to collapse
First, do u know why RAM called Random Access Memory ?
Because it access the memory randomly
In my opinion, An operating system need random access because the system files is located in different directory, and usually has a small size.
App need fast access to the needed file, and RAM do a random access to fulfil that purpose.
Get it ?
And sequential writing is something like you record a big size video, and it stored in the storage, i think that operation need fast writing speed only in one directory, so doesn't need a random access
Someone CMIIW
Sent from my GT-S5660 using xda app-developers app

..

junnickbefore14 said:
I have a plan to buy a 16 GB class 10 sd card, and make a swap partition.
What do u think about that, because i have heard a few opinion about that. somebody said that swap is not good for our sd card, the other one said that class 10 sd card is good in writing speed but it doesn't good in random writing which it's mean class 4 is better, and many more
I just ask for your opinion, and probably u can give me an advice
Thx in advance :beer:
Sent from my GT-S5660 using xda app-developers app
Click to expand...
Click to collapse
SWAP partition is one of the best things introduced in Linux, and so on, on Android. It's so useful for our GIO, because of its low ram capacity.
I suggest to use it, but it will shorten sdcard life (in some cases). If you really need it, what are you waiting for?

Lucky me, received my new SD Sandisk 8GB class 10 and it's specific for mobile UHC-I so it has besides good sequential speed also good random access speed will replace old card later this week and give feedback on results.
Sent from my GT-S5660 using xda app-developers app

Samsung vs sandisk

Which micro sd card do you recommend I am looking to get 32gb or 16gb , just notbsure which to get since they have different speeds and classes. Any help would be appreciated
Sent from my SGH-T889 using xda premium

westkhalifa13 said:
Which micro sd card do you recommend I am looking to get 32gb or 16gb , just notbsure which to get since they have different speeds and classes. Any help would be appreciated
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
By the way I currently am using a 8gb micro sd by samsung and it is class 2 .
Sent from my SGH-T889 using xda premium

I always get a 32 gb class 4 or up. sandisk has always been my choice. But samsung makes great cards as well. You cannot go wrong with either as long as the class is above 2 (or itll suck and die) and enough space for all your needs
Sent from my SGH-T889 using xda app-developers app

EyLaTnOgN said:
I always get a 32 gb class 4 or up. sandisk has always been my choice. But samsung makes great cards as well. You cannot go wrong with either as long as the class is above 2 (or itll suck and die) and enough space for all your needs
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
If you have a micro center nearby, just get their store branded one. I paid 19.99 for a 32gb class 10 with a walk in exchange / lifetime warranty. Best store in the world lol.
Works great, speed as advertised, and best of all its an actual brick and mortar location. Name branded ones cost twice as much and have like a 1 yr warranty. Easy choice if you ask me
http://www.microcenter.com/product/...l_High_Capacity_(Micro_SDHC)_Flash_Media_Card
Sent from my SGH-T889 using xda app-developers app

westkhalifa13 said:
Which micro sd card do you recommend I am looking to get 32gb or 16gb , just notbsure which to get since they have different speeds and classes. Any help would be appreciated
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
I have a 32gb Samsung class 6 and a 64gb Sandisk class 10, both are the ush1 or whatever it is. The Samsung one is so much faster! And not that the 64 had more stuff on it, Samsung was fastest even when it was packed full of stuff. I personally am not pleased with the Sandisk performance.

Best 32gig Class 10 Micro SD

Can anyone recommend me a 32gig micro sd card? I recently purchase this POS http://www.newegg.com/Product/Product.aspx?Item=9SIA26X0PJ1516 from newegg and I'm pissed off at how bad it is. It is advertised with amazing write and read speeds but is nothing near that! It maxes out around 6.6 MB write and 10MB Read speed, WTF. I'm in the process right now for getting a refund and want to get a reliable SD that does not lie about it's speeds. Thanks

Go for the sandisk one. Or if speed is what you want go for there extreme 16 or 32 GB more expensive but boss overall
Sent from my SPH-D710 using xda premium

JayDroid412 said:
Go for the sandisk one. Or if speed is what you want go for there extreme 16 or 32 GB more expensive but boss overall
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I see a lot of reports regarding defective SanDisk cards though. Do you own one? If so can you run a speed test and let me know how it performs.
Sent from my SPH-D710 using Tapatalk 4

I ended up buying this card by GSkill. It has a lifetime warranty which works awesome even if your card doesn't. Google searches found that they have the best replacement turn around and processing.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231577

whatever u do dont buy one on ebay cuz alot them on there is fake. stick with class 4 or 6

SmoothWest said:
whatever u do dont buy one on ebay cuz alot them on there is fake. stick with class 4 or 6
Click to expand...
Click to collapse
but I like my Class 10's.
Class 4 an 10's are only off by a Few dollars why not get little extra speed for a few dollars.
Sent from my SPH-D710 using xda app-developers app

trojanv said:
but I like my Class 10's.
Class 4 an 10's are only off by a Few dollars why not get little extra speed for a few dollars.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Does it really matter on the class, I have always been confused by that.

Yeah as each class gets higher, it means the read and write speeds get faster. Class 2 is the lowest. Class 10 is the fastest. And there's
UHS 1 which is faster then class 10
Sent from my SPH-D710 using xda app-developers app

45463299
trojanv said:
Yeah as each class gets higher, it means the read and write speeds get faster. Class 2 is the lowest. Class 10 is the fastest. And there's
UHS 1 which is faster then class 10
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Thank you!

I'm running a 32gb SanDisk that's labeled UHS 1 but also says class 10.
I had a 8gb that was the same until black Friday when bestbuy had the 32 GB for under $20 with tax.
I've yet to have a SanDisk fail and I abuse my SD cards.
Sent from my CM11 powered SPH-D710BST

Tigatron said:
I'm running a 32gb SanDisk that's labeled UHS 1 but also says class 10.
I had a 8gb that was the same until black Friday when bestbuy had the 32 GB for under $20 with tax.
I've yet to have a SanDisk fail and I abuse my SD cards.
Sent from my CM11 powered SPH-D710BST
Click to expand...
Click to collapse
Yeah I think my new SanDisk is like that too. But I got my card way before the holiday season it was $23. I know I saw it at bestbuy for $17 but its 6 bucks. What I really wanted was a 64gb card. Saw it on Amazon for one of the sales for $34. But 32gb is plenty for me for the moment.
The one you got from BestBuy was the extreme or regular?
Sent from my SPH-D710 using xda app-developers app

trojanv said:
Yeah I think my new SanDisk is like that too. But I got my card way before the holiday season it was $23. I know I saw it at bestbuy for $17 but its 6 bucks. What I really wanted was a 64gb card. Saw it on Amazon for one of the sales for $34. But 32gb is plenty for me for the moment.
The one you got from BestBuy was the extreme or regular?
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Extreme and yea it was $17 before tax.
I tried the 64 GB (my friend has one) but my phone didn't like it. He uses it in his netbook (with sd adapter) as extra storage (his netbook only has 8gb ssd).
Sent from my CM11 powered SPH-D710BST

Tigatron said:
Extreme and yea it was $17 before tax.
I tried the 64 GB (my friend has one) but my phone didn't like it. He uses it in his netbook (with sd adapter) as extra storage (his netbook only has 8gb ssd).
Sent from my CM11 powered SPH-D710BST
Click to expand...
Click to collapse
My phone didn't take the 64gb card either.

ny355145 said:
My phone didn't take the 64gb card either.
Click to expand...
Click to collapse
That's interesting, mabey you didn't reformat it? I've been using a 64 gb sd card for months now.
Sent from my SPH-D710 using XDA Premium 4 mobile app

beezie42 said:
That's interesting, mabey you didn't reformat it? I've been using a 64 gb sd card for months now.
Sent from my SPH-D710 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I formatted the one I tried and even let the phone do it but it didn't work right. The phone only showed part capacity of the card and files I saved to it (like downloads) would become corrupt.
Sent from my CM11 powered SPH-D710BST

Tigatron said:
I formatted the one I tried and even let the phone do it but it didn't work right. The phone only showed part capacity of the card and files I saved to it (like downloads) would become corrupt.
Sent from my CM11 powered SPH-D710BST
Click to expand...
Click to collapse
Yeah it has to do with something relating to 32gb. anything above 32gb has to be formatted diffrrently? I can't remember the exact details about it.
64gb is crazy amounts of space. I only use about 15-20gb. But I've seen some of these apps in the play store go up to 1gb now which crazy for an app.
Sent from my SPH-D710 using xda app-developers app

32gb works good for me as long as I remember to transfer stuff to my PC. I no longer have home internet so I'll go get on WiFi with my phone and download stuff for my computer.
Sent from my CM11 powered SPH-D710BST