[Q] Optimal SD Card? - EVO Shift 4G Q&A, Help & Troubleshooting

I asked this at the end of another thread, but there was no response, so maybe it was lost/buried. I thought I'd try a new thread.
Is there an optimal SD card for the Shift? I know that with my Nook, class 4 or 6 was actually the best thing you could use. Any data on what works best with the Shift?

flu13 said:
I asked this at the end of another thread, but there was no response, so maybe it was lost/buried. I thought I'd try a new thread.
Is there an optimal SD card for the Shift? I know that with my Nook, class 4 or 6 was actually the best thing you could use. Any data on what works best with the Shift?
Click to expand...
Click to collapse
SD cards have classes? lol i grabbed the cheapest 16 gig SD card i could find and never in the 9 months of having it did it fail on me

I use class 4 and it works great
Sent from my Supreme Shift

I have a SanDisk 16 Gig class 6. Never had any issue with it.

Your answer is here:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820220546
Patriot Class 10 16GB Micro SD, $29.99
On ScaryKernel stable with compcache I got the following speeds/scores from Antutu:
sdcard write 9.9MB/s 99
sdcard read 17.5 MB/s 175

Adata 16gb class 10 been working good for me. Also got it on new egg
Sent from your Mom's Jitterbug

VICODAN said:
Your answer is here:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820220546
Patriot Class 10 16GB Micro SD, $29.99
On ScaryKernel stable with compcache I got the following speeds/scores from Antutu:
sdcard write 9.9MB/s 99
sdcard read 17.5 MB/s 175
Click to expand...
Click to collapse
Love their pc ram but the micro sd cards they have out have been problematic.
Sportin Transcends 8gb class 6, works great for me.
Sent from my Shifty Speed Brick using xda premium

fallnSaint said:
Love their pc ram but the micro sd cards they have out have been problematic.
Sportin Transcends 8gb class 6, works great for me.
Sent from my Shifty Speed Brick using xda premium
Click to expand...
Click to collapse
Never had any real problems. What problems have you had?
edit: I did have to format one time. Just make sure you format the card LBA turned off and you should be all good.
---------- Post added at 04:48 PM ---------- Previous post was at 04:36 PM ----------
http://forum.xda-developers.com/showthread.php?p=17717904

No matter which card you get. You can use SD Speed Increase or SD-Booster to increase the speed of the Read/Write of the card.

prboy1969 said:
No matter which card you get. You can use SD Speed Increase or SD-Booster to increase the speed of the Read/Write of the card.
Click to expand...
Click to collapse
Didn't know about these apps, thanks for the info. Will these have any ill effects on my card?
Sent from Gingerbread Speedy 4G

Not a one that I've heard of, or noticed. Have been using one or the other for a while. On several Shifts and on my wife's EVO4G. All different types of Micro SD Cards, from 2 gig on up to a 32gig. Different brands, always see an improvement. One thing I will say. Every phone is different as far as the sweet spot. I use SD Tools to find the best number.

Thanks for all the feedback, guys.
For the record, I use SD speed increase on my Nook and have never had any problems. And I use a class 4 Sandisk in it, because smarter people than me determined it was the best. I stand on the shoulders of giant androids, y'know?

flu13 said:
Thanks for all the feedback, guys.
For the record, I use SD speed increase on my Nook and have never had any problems. And I use a class 4 Sandisk in it, because smarter people than me determined it was the best. I stand on the shoulders of giant androids, y'know?
Click to expand...
Click to collapse
Sandisk makes great SD cards. But a class 10 sd card is way faster than any class 4.
Class Speed
Class 2 2 MB/s
Class 4 4 MB/s
Class 6 6 MB/s
Class 10 10 MB/s

prboy1969 said:
No matter which card you get. You can use SD Speed Increase or SD-Booster to increase the speed of the Read/Write of the card.
Click to expand...
Click to collapse
Alternatively you can create a script and drop it into the /etc/init.d/ folder containing this:
Code:
echo "2048" > /sys/devices/virtual/bdi/179:0/read_ahead_kb;
It does the same thing as those apps without taking up resources.
crump84 said:
Didn't know about these apps, thanks for the info. Will these have any ill effects on my card?
Sent from Gingerbread Speedy 4G
Click to expand...
Click to collapse
No, it just increases the Read Ahead buffer size in Android so data is copied off the sdcard into memory in larger chunks. Constant writing is the only thing that affects the lifespan of a sdcard.

Ron Overdrive said:
Alternatively you can create a script and drop it into the /etc/init.d/ folder containing this:
Code:
echo "2048" > /sys/devices/virtual/bdi/179:0/read_ahead_kb;
It does the same thing as those apps without taking up resources.
No, it just increases the Read Ahead buffer size in Android so data is copied off the sdcard into memory in larger chunks. Constant writing is the only thing that affects the lifespan of a sdcard.
Click to expand...
Click to collapse
This is already built in to ScaryKernel and it doesn't make much of a difference.
Differences I noticed with SD card speed:
CPU clock speed/governor
Compcache disabled

A script does use less resources. But the downside is that all devices are different. Because of that some will see a difference with a set script, and some won't. You have to find the specific sweet spot for your individual device. That's where the apps come in handy. They allow you to adjust and test easliy until you get the right number.

VICODAN said:
Never had any real problems. What problems have you had?
edit: I did have to format one time. Just make sure you format the card LBA turned off and you should be all good.
---------- Post added at 04:48 PM ---------- Previous post was at 04:36 PM ----------
http://forum.xda-developers.com/showthread.php?p=17717904
Click to expand...
Click to collapse
Sorry vicodan, should have clarified, not personal experience. I did a lot of research before upgrading my card & went to Patriot immediately, a lot of bad experiences by other users disuaded me from pulling the trigger.
Thanks for the heads up prboy, will definitely have a look.
Sent from my PG06100 using xda premium

VICODAN said:
Sandisk makes great SD cards. But a class 10 sd card is way faster than any class 4.
Class Speed
Class 2 2 MB/s
Class 4 4 MB/s
Class 6 6 MB/s
Class 10 10 MB/s
Click to expand...
Click to collapse
Yes, I understand that. But Nook owners/devs have gone to a lot of trouble to test out different classes of SD cards and found the best performance from class 4 or 6. I'm not here to explain it or understand it, I just accept their word. I'll see if I can find a succinct explanation over in the Nook forum.

Ok, too much to pick through. Here is one of the main discussions, with a link to the other.
I just figured that if higher class didn't necessarily equal better performance on one Android device, it was worth asking about the Shift as well.

prboy1969 said:
A script does use less resources. But the downside is that all devices are different. Because of that some will see a difference with a set script, and some won't. You have to find the specific sweet spot for your individual device. That's where the apps come in handy. They allow you to adjust and test easliy until you get the right number.
Click to expand...
Click to collapse
You don't need an app to find the sweet spot though. All you need is Terminal or ADB and that command in the script while root. Just change 2048 to a different number and run your benchmark. Whether you use one of the Apps or the command line method once the sweet spot is found edit the init.d script and save. Next time the device restarts its automatically applied during the boot process before the Launcher is loaded speeding up the Launcher's startup and App Drawer refresh if you install apps to the sdcard.

Related

[Q] Tried this SD card speed mod?

Has anybody tried this on the G2X?
http://forum.xda-developers.com/showthread.php?t=1010807
I'm running faux kernel and 2048 is the value. Already changed. All my other phone default was 128. Then I add script to change to 2048 or even 4096.
did nothing for me i tried both those settings and even rebooted a few times , guess cuz i have a class 4 8gig
Does absolutely nothing on my class 10 32 gig....performance difference is negligible on any value.
Sent from my LG-P999 using XDA Premium App
I use SD Speed Increase set to 4096. Class 6, 8mb card. I get 9mb write and 19mb read.
jcbofkc said:
I use SD Speed Increase set to 4096. Class 6, 8mb card. I get 9mb write and 19mb read.
Click to expand...
Click to collapse
i use the same one and it does nothing set where u have it , class 4 8gig
Hmm... help a guy out. My scores changed for the better. Why does 4096 not do anything?
Thanks
jcbofkc said:
Hmm... help a guy out. My scores changed for the better. Why does 4096 not do anything?
Thanks
Click to expand...
Click to collapse
I have no clue brotha maybe a ****ty memory card lol? Sandisk
Why bother with that when you can download...
SD Speed Increase from the market and it does the same thing. The app that he is using to see read and write speed is SD Tools which can also be found on the market.
The number 2048 seems to work best with most people's cards and although you would think 4096 would be better but it depends on the SD card being used and its class. Atleast that what i have read about this sort of thing.
fabricatedhero said:
Why bother with that when you can download...
SD Speed Increase from the market and it does the same thing. The app that he is using to see read and write speed is SD Tools which can also be found on the market.
The number 2048 seems to work best with most people's cards and although you would think 4096 would be better but it depends on the SD card being used and its class. Atleast that what i have read about this sort of thing.
Click to expand...
Click to collapse
I didn't know about the speed increase app. Thanks for the heads up.
Sent from my LG-P999 using XDA App

Slooowww sd card transfer speed

ever since i partitioned my sd card a few months back so that i could run a2sd, i've noticed my sd card transfer speeds are incredibly slow. for example, today i was transferring the updated supreme sense rom, which is 240mb, to my phone from my computer and it took close to 5 minutes to complete. this has been ongoing for a few months but i never asked about it til now!
is this normal after partitioning your sd card for the transfer speeds to be slower?
jwigley24 said:
ever since i partitioned my sd card a few months back so that i could run a2sd, i've noticed my sd card transfer speeds are incredibly slow. for example, today i was transferring the updated supreme sense rom, which is 240mb, to my phone from my computer and it took close to 5 minutes to complete. this has been ongoing for a few months but i never asked about it til now!
is this normal after partitioning your sd card for the transfer speeds to be slower?
Click to expand...
Click to collapse
What class is your SD
Sent from my myTouch_4G_Slide using Tapatalk 2
strapped365 said:
What class is your SD
Sent from my myTouch_4G_Slide using Tapatalk 2
Click to expand...
Click to collapse
Kingston 8 GB microSDHC Class 4
jwigley24 said:
Kingston 8 GB microSDHC Class 4
Click to expand...
Click to collapse
There are market apps that will adjust your sd card features... Worth a shot if it gets bad enough... You running sense or aosp?
Sent from my PG06100
SD Speed Increase in the Google Play store works great. Plus it's Free.
I use SD speed increase and set it to 2MB/sec.
Nice thanks for the suggestions I'll try them out and see if it makes a difference

SD card classes.

Why is a higher SD card class no better?
Sent from my HTC Sensation using XDA
DLittle2012 said:
Why is a higher SD card class no better?
Sent from my HTC Sensation using XDA
Click to expand...
Click to collapse
no, actually it is better. the SD card class resembles how fast it can Read/Write data. the higher, the quicker...and the more expensive
Thanks.I know I'm a stupid ****er.
Sent from my HTC Sensation using XDA
DLittle2012 said:
Thanks.I know I'm a stupid ****er.
Sent from my HTC Sensation using XDA
Click to expand...
Click to collapse
what? nah you're not man, don't be hard on yourself!!
i didn't know many answers before as well
DLittle2012 said:
Thanks.I know I'm a stupid ****er.
Sent from my HTC Sensation using XDA
Click to expand...
Click to collapse
No your not
Everyone has to learn. Look how much you learned already!
Sent from my Sensation 4G using xda premium
Not totally true. From what I've read, higher class SDs, such as class 10s, gain that additional speed at the cost of random access speed. Random access speed is the speed at which the card can load a particular file such as a song or photo.
That can potentially cause delays in playing music, among other things.
sshede said:
Not totally true. From what I've read, higher class SDs, such as class 10s, gain that additional speed at the cost of random access speed. Random access speed is the speed at which the card can load a particular file such as a song or photo.
That can potentially cause delays in playing music, among other things.
Click to expand...
Click to collapse
yup
heard its best to have a good class 6 sdcard for android devices
(a real class 6, not just labeled class 6 but works like a class 2)
sshede said:
Not totally true. From what I've read, higher class SDs, such as class 10s, gain that additional speed at the cost of random access speed. Random access speed is the speed at which the card can load a particular file such as a song or photo.
That can potentially cause delays in playing music, among other things.
Click to expand...
Click to collapse
Good advice man
I use class 4 and it makes my sensation fly. I'm pretty satisfied with it.
DLittle2012 said:
Why is a higher SD card class no better?
Sent from my HTC Sensation using XDA
Click to expand...
Click to collapse
SD Card classes denote the minimum speed at which data is written to the SD Card. For example, you can transfer a file prom your PC to a class 4 SD Card at a minimum speed of 4 MB/s (24 Mbit/S) under optimum conditions.
The speed at which data is read from the SD Card is dependent on the device, so in effect, all classes of SD Cards are the same for your device unless substantial amount of data is being written onto the SD Card.
kgs1992 said:
SD Card classes denote the minimum speed at which data is written to the SD Card. For example, you can transfer a file prom your PC to a class 4 SD Card at a minimum speed of 4 MB/s (24 Mbit/S) under optimum conditions.
The speed at which data is read from the SD Card is dependent on the device, so in effect, all classes of SD Cards are the same for your device unless substantial amount of data is being written onto the SD Card.
Click to expand...
Click to collapse
you mean maximum, dont you?
DonDizzurp said:
you mean maximum, dont you?
Click to expand...
Click to collapse
Minimum. Look it up if you like. Maximum was the old grading system.
Hi I'm using a class 4. It seems great! I just got it. I traded out my old 16 for a new 16, they fill up fast.I like san disk they seem pretty good.
I always use that brand.I've never had trouble with that brand. Be cautious when purchasing because some brands can be a rip off .but it's a class 4. Works great for me. Hope this helps you out.
Sent from my Sensation 4G using xda premium

[confirmed] 64GB micro SDXC/FAT64 works

For data transferring purpose, I took 64GB micro SDXC out from Note2 to Note 8.0.
Lo and behold, it works right away.
Sandisk Ultra 64GB in FAT64 FS.
I'm wondering if there are any alternate formats for these cards seeing as CWM - and I guess ultimately TWRP as well can't read exFat i think i need to do some googling...
Sent from my HTC One X using Tapatalk 2
You can use FAT32 FS instead of 64 with EaseUS, but the maximum single file size is limited to 2GB with 32.
I was wondering what would happen if i tried ext2/3/4
Or was thinking maybe a couple of partitions...
Sent from my GT-N5110 using Tapatalk 2
64gb
h20rat said:
I was wondering what would happen if i tried ext2/3/4
Or was thinking maybe a couple of partitions...
Sent from my GT-N5110 using Tapatalk 2
Click to expand...
Click to collapse
tested with sandisk cl10 works and quick. Tried the script for moving apps2sd after flashing new rom with initd support. Fast
h20rat said:
I'm wondering if there are any alternate formats for these cards seeing as CWM - and I guess ultimately TWRP as well can't read exFat i think i need to do some googling...
Click to expand...
Click to collapse
That's odd. I have TWRP installed on my Note 2, and had no problems installing ARHD from a 64GB microxd formatted in exFAT. The file showed up instantly.
iCurmudgeon said:
That's odd. I have TWRP installed on my Note 2, and had no problems installing ARHD from a 64GB microxd formatted in exFAT. The file showed up instantly.
Click to expand...
Click to collapse
Could have been a custom kernel that allowed for exfat?...
---------- Post added at 04:30 PM ---------- Previous post was at 04:28 PM ----------
mingkee said:
You can use FAT32 FS instead of 64 with EaseUS, but the maximum single file size is limited to 2GB with 32.
Click to expand...
Click to collapse
The maximum single file size allowed under fat32 is actually 4GB minus 1 byte, not 2GB.
im running a T-Mobile GN2 and i have a 32gb mic in it but i keep running out so someone walked in my store today and sold me 2 in the pack 64gb micro sdxc. 1 Kingston and 1 Lexar so my Question is will i have any Read/Write issues and or any Camera Issues ??? also when i use the Burst Mode or Record Video will i See a Noticeable Performance Difference thanks to all and Please Advise
iCurmudgeon said:
That's odd. I have TWRP installed on my Note 2, and had no problems installing ARHD from a 64GB microxd formatted in exFAT. The file showed up instantly.
Click to expand...
Click to collapse
I had no issues with exFAT on stock Kernal, but could no longer read it once I had flashed Civs one as it doesnt support it. Copied my files to my PC, re formatted the card to fat32. Put all the files back on the card and have had no issues since.
And to agree with what someone else posted. The file limit on Fat32 is a shade under 4GB not 2GB, which is fine for me as I have no need for files larger than 4GB.
---------- Post added at 09:20 AM ---------- Previous post was at 09:16 AM ----------
sdwyz74 said:
im running a T-Mobile GN2 and i have a 32gb mic in it but i keep running out so someone walked in my store today and sold me 2 in the pack 64gb micro sdxc. 1 Kingston and 1 Lexar so my Question is will i have any Read/Write issues and or any Camera Issues ??? also when i use the Burst Mode or Record Video will i See a Noticeable Performance Difference thanks to all and Please Advise
Click to expand...
Click to collapse
No 2 cards are the same so your results may vary from others, but in general the read and write speeds you can expect are defined by what class the sd card is. If you were sold only a class 2 or class 4 card, you may have issues when trying to write to the card in burst mode. In general class 6 or above is what you should be aiming for, but the higher (faster) the better.
hertsjoatmon said:
I had no issues with exFAT on stock Kernal, but could no longer read it once I had flashed Civs one as it doesnt support it. Copied my files to my PC, re formatted the card to fat32. Put all the files back on the card and have had no issues since.
And to agree with what someone else posted. The file limit on Fat32 is a shade under 4GB not 2GB, which is fine for me as I have no need for files larger than 4GB.
---------- Post added at 09:20 AM ---------- Previous post was at 09:16 AM ----------
No 2 cards are the same so your results may vary from others, but in general the read and write speeds you can expect are defined by what class the sd card is. If you were sold only a class 2 or class 4 card, you may have issues when trying to write to the card in burst mode. In general class 6 or above is what you should be aiming for, but the higher (faster) the better.
Click to expand...
Click to collapse
Thanks for your help and just to let you know there both class 10 micro sdxc 1 is Lexar The other is Kingston so my next quetion is being that the Lexar seem to be the more exspensive one but I've always been a Samsung Kingston guy in your opinion what's Technically the better Performing Card as like All us technology junkies i am always chasing the best
Everything is running Fine here to im Just wondering how or what ext I should format to ??? I have T-mo GN2 running with Lexar 64GBxc ( extended capacity ) thanks and PLEASE ADVISE

[q] ramexpander

I recently installed ramexpander on my phone, in starting it said my SD card read write speed is 9 mb/sec gradually wen I created my 6th or 7th time swap it said my SD card read write speed is 3 mob/sec ..
Is it damaging my SD card?
anu.cool said:
I recently installed ramexpander on my phone, in starting it said my SD card read write speed is 9 mb/sec gradually wen I created my 6th or 7th time swap it said my SD card read write speed is 3 mob/sec ..
Is it damaging my SD card?
Click to expand...
Click to collapse
Afaik swap reduces or hampers the quality and speed of Sd card. I dont think its the app. Because I had read swapping is not good for Sd cards.
AFAIK - a fake?
Stock ROM or Cusrom? some cusrom maybe unsupported...
i have installed in CM10.1 and work smooth with class10 of sd card. i don't think swapping could be damage sd card, but maybe reduce the lifespan.
i dunno high class of sd have some fitures too..
hm...swapping make battery quickly drains, though
anu.cool said:
AFAIK - a fake?
Click to expand...
Click to collapse
Its As far as I know. :good:
+1 for Adnin's post.
It also depends on your sd card class. Class 4,6,8,10. 10 being the best.
Adnin said:
Stock ROM or Cusrom? some cusrom maybe unsupported...
i have installed in CM10.1 and work smooth with class10 of sd card. i don't think swapping could be damage sd card, but maybe reduce the lifespan.
i dunno high class of sd have some fitures too..
hm...swapping make battery quickly drains, though
Click to expand...
Click to collapse
Rohit02 said:
Its As far as I know. :good:
+1 for Adnin's post.
It also depends on your sd card class. Class 4,6,8,10. 10 being the best.
Click to expand...
Click to collapse
https://play.google.com/store/apps/details?id=com.swapit.expander.de&hl=en
Its the one I m talking abt
I'm the first swap it said SD card read\write speed is 9mb/s
At fourth one it said speed is 3mb/sec
I m not sure abt ad card class
When I purchased it , the seller said its a class 10 card tho I rarely felt it is of class 10 ...
I m on cm10.1 by erickas ...
Is there a way to check SD card speed so that I can confirm my card is still okay?
anu.cool said:
Is there a way to check SD card speed so that I can confirm my card is still okay?
Click to expand...
Click to collapse
try Antutu benchmark app.it tells your SDCard read and write speed.
ehsan-black said:
try Antutu benchmark app.it tells your SDCard read and write speed.
Click to expand...
Click to collapse
k thanks, i will try it tmr ...
anu.cool said:
https://play.google.com/store/apps/details?id=com.swapit.expander.de&hl=en
Its the one I m talking abt
I'm the first swap it said SD card read\write speed is 9mb/s
At fourth one it said speed is 3mb/sec
I m not sure abt ad card class
When I purchased it , the seller said its a class 10 card tho I rarely felt it is of class 10 ...
I m on cm10.1 by erickas ...
Is there a way to check SD card speed so that I can confirm my card is still okay?
Click to expand...
Click to collapse
some seller only big mouth about high class
be carefull, bro..
Ramexpander it saves ram and battery.
But phone starts lagging sometimes.
Sent from my GT-I9070 using xda app-developers app
Phone will work fast with class 10 sd card, also called HD card
Expand RAM!!!
I too read that as time passes it will degrade your sd card..and its true i experienced it,my 16gb class 4 is still in service center, its like a gamble.. dont use ram expander for too long..instead try changing cpu governers and diff. settings...for heavy applications like Firefox it sure helps,,but dont use for too long....
I've 512mb sd-ext partition. I hope that it shouldn't degrade my class 10 SD card(32GB):sly:
usbfreak said:
Phone will work fast with class 10 sd card, also called HD card
Click to expand...
Click to collapse
Dnt think so, class 10 or class 4, it will degrade with time if u overuse it, or if u use too much swap memory
My class 10 memory card died in less than a week, was using it as swap memory 24 X 7 ..
mni ANKIT said:
I too read that as time passes it will degrade your sd card..and its true i experienced it,my 16gb class 4 is still in service center, its like a gamble.. dont use ram expander for too long..instead try changing cpu governers and diff. settings...for heavy applications like Firefox it sure helps,,but dont use for too long....
Click to expand...
Click to collapse
dnt think apps like firefox will ever run on device like fit properly, since i use a s4 too, being too much difference, fir now looks like a spice company try to compete with apple
Galaxy_Rohit said:
I've 512mb sd-ext partition. I hope that it shouldn't degrade my class 10 SD card(32GB):sly:
Click to expand...
Click to collapse
heard ppl saying if u use a sd card higher than 8gb it will make ur device lagg, even if u r using a class 10 memory card, dunno tho, dnt hv any experience on this thing yet ...
Galaxy_Rohit said:
I've 512mb sd-ext partition. I hope that it shouldn't degrade my class 10 SD card(32GB):sly:
Click to expand...
Click to collapse
i used 1 GB SD-Ext for a month and my Class10 (8GB) sdcard is now dead!!
you can use this advice instead (thanks to darkpassenger it worked for me like a charm! ):
Dark Passenger said:
PS a word of advice odex the rom and move apps to sd(native solution).It will allow the apps to perform the best(better than all app2sd scripts I swear!) and the space is still plenty.
Click to expand...
Click to collapse
ehsan-black said:
i used 1 GB SD-Ext for a month and my Class10 (8GB) sdcard is now dead!!
you can use this advice instead (thanks to darkpassenger it worked for me like a charm! ):
Click to expand...
Click to collapse
will try this it seems to be a good piece of info...thnx

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