SD card confusion! - Desire Q&A, Help & Troubleshooting

After lots of searching and reading can anyone help with SD card choice? Why is it such a problem for this phone? Is there different hardware in the phone or is it the way the ROM or Kernel addresses the card that seems to cause so much trouble?
For every card that is recommended you can find somebody who has had issues with same card so do I need to find out about the hardware in phone or stick to ROM or kernel threads for best card for me?
Have tried 3 cards so far and the lowest spec one was the best!! I know there are lots of reported problems with class 10 cards but also lots say their phones perform great with them but I found the class 10 PNY 8GB card the slowest I've used and a class 4 8GB sandisk the fastest with a class 6 8GB samsung nearly as fast but still cannot work out why there is so much trouble with SD cards

Ive been using a class 6 A-DATA sd card for quite a while now and I must say, I'm impressed with its speed. Its great for A2SD and SD ext. I tried sebastiaans rom, and it runs pretty smooth on this card, WAY better than on my class 2 samsung sd card.
In the end its just a matter of taste, some say Samsung is better, some say A-DATA is and others Kingston. Ive read that a class 10 card is a bit of overkill for the usage and that a lot of them arent as fast as they claim to be. I'd say class 6 will do just fine! The brand does not matter, stick with the big names tho . Kingston, A-DATA and Samsung seem to be bought the most!

Thanks but still want to know why, what is the limitation...the phone hardware or rom/kernel? I'm on seb15 AIO5.0.2 now with cm7 r2 hboot and the class 6 samsung 8GB in much faster than the class 10 PNY 8GB so not getting any lag now but seems no different to the class 4 sandisk that i replaced due to card errors but that was on standard HBoot.
Have just ordered a sandisk ultra 16GB card for extra space so hope it is as good or better and it was a bargin http://www.play.com/Mobiles/Mobile/...-Micro-SD-HC-Memory-Card-Class-6/Product.html
but what is the fastest read and write speed you can expect from the hardware? I use antutu now to check speed.

andy3434 said:
Thanks but still want to know why, what is the limitation...the phone hardware or rom/kernel? I'm on seb15 AIO5.0.2 now with cm7 r2 hboot and the class 6 samsung 8GB in much faster than the class 10 PNY 8GB so not getting any lag now but seems no different to the class 4 sandisk that i replaced due to card errors but that was on standard HBoot.
Have just ordered a sandisk ultra 16GB card for extra space so hope it is as good or better and it was a bargin http://www.play.com/Mobiles/Mobile/...-Micro-SD-HC-Memory-Card-Class-6/Product.html
but what is the fastest read and write speed you can expect from the hardware? I use antutu now to check speed.
Click to expand...
Click to collapse
I have tried 2 of those 16gb ultra mobile dual color cards and I had a lot of frezes, with AIO 5.0.1SE rom, CM7r2 Hboot. So I had to go back to my lexar 16gb class6.

Hhmmmm like i said for every good report on a card there is a bad one, have read a few good reports on this card and the original class 4 sandisk card has been the best i've used so far so thought would give it a try...hope I'm lucky with it!!
It should arrive today or tomorrow so will repoet what i find

Well the sandisk 16gb ultra mobile has turned up and been running it for a few days now with no problems, ROM is running smooth with no freezes so far.
Using antutu to bench mark it and it appears to be slightly faster than the class 6 samsung 8GB it replaced, alot quicker than the class 10 PNY but still slower than the old class 4 sandisk 8GB!
ROM runs sloothly and I have enough space for now so will stick with it.

Yep... ultra mobile is the best card that I ever use till now.

andy3434 said:
Well the sandisk 16gb ultra mobile has turned up and been running it for a few days now with no problems, ROM is running smooth with no freezes so far.
Using antutu to bench mark it and it appears to be slightly faster than the class 6 samsung 8GB it replaced, alot quicker than the class 10 PNY but still slower than the old class 4 sandisk 8GB!
ROM runs sloothly and I have enough space for now so will stick with it.
Click to expand...
Click to collapse
Thanks to let us know, but can you tell me what rom are you using with it? are you still using Seb rom? CM7r2 or Stock hboot? Thanks

Seb rom still, version 5.1AIO and cm7 r2 hboot
Sent from my HTC Desire using XDA App

We recommend a Class 6 Transcend for any kind of data swapping like data2sd, or data2ext, on the basis of maximum positive feedback. A class 10 is more often overkill and most brands are incompatible with the Desire, while a Class 2 might be underpowered (in terms of speed).
Personally tested cards with data2sd:
Class 2 Kingston-Ok
Class 6 Transcend 4GB-Great
Class 6 SanDisk 16GB-Lags
Class 6 Samsung 16GB-Great
Class 4 3CPro 16GB-Great
Class 10 Transcend 16 GB-lags
The polls section of supernova.droidzone.in has some polls regarding speed of card with my roms.

..and you can't get a more useful response than that!

Related

[Q] can htc desire support class 10

currently running a class 2, and i do notice alot of lag when copy and saving stuff so wanna upgrade, thinking of getting this
http://www.amazon.co.uk/Kingmax-mic...1AIC/ref=sr_1_3?ie=UTF8&qid=1299847078&sr=8-3
yea yea, i know if t "kingmax" so it will either be crap or amazing (more likely crap)
but my question is, is it worth getting a class 10, would the htc support it, and would it be able to make use of it?
thanks in advance
I have a "generic" 32GB class 10 OEM by a local company here in Malaysia, and I must say it is noticeably quicker than my previous class 4 16GB card when used in the phone (a2sd). Transferring files using the laptop on the other hand is wayyyy faster...
Whether its worth the money over a class 6 equivalent i can't say.
Regarding "Kingmax", I have a usb flash disk of theirs and its blazing fast Lets hope they are consistent.
I use a decent Samsung 8Gb class six and I get a 10-11Mbps transfer rate, which is more than enough for me. I got the card for something like £12. My old class four used to peak at about ~6Mbs if I remember rightly.
I have a class 10 kingmax and it's working great,i'm running data2sd on it and no issues at all. But i recall i heard some ppl had some lag issues with class 10 cards (not kingmax in particular).As for kingmax specifically it's guaranteed u'll get 10 Mb/s write speed.
Sent from a place far far away using XDA App
Mine is a kingstone 16GB class 10 and it rocks !
I have a Kingmax 16GB Class 10 and I get above 10MB/s for both writing and reading when testing using SD Card Speed Test. However, the rom and kernel on your HTC does make a difference, I think, on whether your Desire can fully utilise the Class 10. I don't think it would be worth it to use a Class 10 over a Class 6 if you're using a stock rom, but if you're using a rom with data2ext or data2sd, that uses the SD card extensively, then it'd probably make a difference.

Need a good memory card

I want to max out the memory with a 32gb SDHC. Anyone have any suggestions?
The SanDisk 32GB is very good,
it performs higher than stated with regards to class and obviously is a highly reliable make.
Sent from my Desire HD using XDA App
Another vote here for sandisk, havent actually tried their 32GB, but every other card i've had from them has been faultless.
Most important thing w.r.t. memory cards IMO, is to buy from a reliable source. Ebay is rife with fakes.
Arc can handle up to class 6?
Or i shall order a class 8 or 10.
When i bought arc i had in the case a 16gb sdhc card, but i want a faster one
someone was able to get between 6.00 to 6.79 MB/s on his Class 6 16GB MicroSD, but that was on an X10. you might get similar results on the Arc.
(source)
just got a lexar 32gb class 10 card from amazon (solutek) works great , faster than standard card supplied with arc
I guess I'll try the Sandisk, much appreciated guys. Now I just need this phone to be shipped.
I Bought a Sandisk Class 4 32GB and it works fine for me.
The data transfer to the card seems faster when I take it out of the phone.
I was thinking of getting Lexar MicroSDHC 32 GB Class 10 from amazon for my arc so anyone have it already and how is it? cus i didn't see any sandisk microsd have class 10 32Gb.
I've used the original Sandisk MicroSd 8 Gb (Class 2) and a Class 6 variant... When you copy big numbers of mp3 or movies to the phone, it really makes a difference. Example: with a Class 2 it takes about up to 1 or more hours to transfer 1 Gb - a Class 6 does the job in less then 5 minutes...! But if you want to buy a good rated SD because of the HD-camera, then Class 2 should be high enough (according to the experts). Any higher only helps if you transfer data a lot/often (like changing your musiccollection on the Arc).
Sent from my LT15i using XDA App
yousif666 said:
I was thinking of getting Lexar MicroSDHC 32 GB Class 10 from amazon for my arc so anyone have it already and how is it? cus i didn't see any sandisk microsd have class 10 32Gb.
Click to expand...
Click to collapse
i'm on 32gb class10 Lexar, so far so good
+1 for The lexar class 10. Very good !!! The best solution with The sandisk class 4.
I bought a Kingstone 16GB Class 4, at first it was impressive but now it jams when shoot a video a lot.
speed of the memory:
http://imageshack.us/photo/my-images/27/sonyericssonlt15i201105.png/
btw, if anyone spots a good micro sd 16gb class 6 or higher please inform me.
I become a 16GB Class 2 Card but this card was wrong, the write speed is 3Mb/s, then I bought a new 16GB Class 10 Card. This card speed: 11.3/20.9 (write/read) the i am happy The maked HD video is better and the frame rate is really 30fps
UPDATE: The card worked much data disappeared from him then until 5 days. The next day the telephone did not see the card already though. F***ing noname card! Nobody let me not buy it trademarkless card!

SD Cards Which Do & Dont Work With The Defy

Lets post what cards we do know work and the ones that don't because this is starting to cost people money just trying to find out. It is becoming apparent the faster the class the less likely the card will work. All class 2 and 4 cards seems to work, the majority of class 6 cards work but class 10 cards that work are few and far between.
The problems seem to be with the official moto release of 2.2, many had no problems with 2.1 so the issues are with the software not the hardware.
Known to work with 2.2
Samsung Plus 8GB class 6 (MB-MP8G) http://tinyurl.com/42fks93
Known not to work with 2.2
PNY 16GB class 10 http://tinyurl.com/4xywwue
Below is the speeds of the known working Samsung class 6 card.
Kingston 8GB SDHC Class 4 works fine for me
2 Memory cards work fine:
Samsung 8GB Class 4, HC.
Samsung 1GB.
Kingston 16gb class 4 works for me.
Known to work
Icidu 32GB (class unknown)
SanDisk 32GB class 2
Known to Work
Trancend 16GB class 6
Transcend 16gb class 6.
Sometimes become read-only. I have to re-mount it. I never have this problem in Samsung Spica or htc legend
Useful thread, someone should sticky this.
Known to Work
SanDisk 8GB class 4 -> works very well and records smooth 720p videos
Known to Work
Memorette class 10 32GB card
dave79 said:
Very insteresting, I haven't had any of those issues with my Memorette class 10 32GB card. Tested with a good average speeds of 14MBps. I wanted a class 10 card in order to be future proof (HD recording etc).
Currently running the beta stock Orange Ginger (2.3) rom at 1GHz.
//Dave
Click to expand...
Click to collapse
Is there any cards that not work???
Sent from my MB526 using XDA App
Lots and lots, hence the thread. I posted one that didn't work in the very first post.
KNOWN NOT TO WORK
Transcenc 8gb Class 6
I had constant freezes and crashes with that card.
KNOWN TO WORK
Kingston 4gb Class 4
works perfectly
This one works for me:
Trancend 16GB class 6 formatted with 64Kb clusters
Works with:
10 MB/s Write speed
22 MB/s Read speed
Running 2.3.4 для Defy - 134
Hugo32 said:
KNOWN NOT TO WORK
Transcenc 8gb Class 6
I had constant freezes and crashes with that card.
Click to expand...
Click to collapse
Have you allready tried that card when formatted FAT32 with 64kb Clusters??
gommers1978 said:
Have you allready tried that card when formatted FAT32 with 64kb Clusters??
Click to expand...
Click to collapse
how do I do that ? btw. I already thought my defy was broken as it froze every 5-10 minutes, than changed to the kingston card and installed the exact same apps/ settings and now it runs without errors for a week already...
Do it in Windows mate To be honest though a working card should do just that, work, if you are having ot mess around with cluster sizes to get it working rather than just doing it to improve speed then i would be weary.
You should edit your 1st post ..make a list of working and non working SD cards!
Just for you then LOL.
Aint that the point of this thread?
Simple and clean info about SD cards.. Its not for me its for community FFS!
Take CM7 thread for a example ,its pretty much mess(1k posts?) there but hey you have another thread which is simple FAQ where it clearly says what you should do to install that rom.
Its similar as this and bunch other threads out there;more organisation would be better for all.

What Class SD Card is best for SPEED/SMOOTHNESS for DATA 2 SD CARD SETUP ROMS

Also, whats an easy way to find out what Class your SD card is?
It is written in on the card itself.
Why two threads? This is not a news group.
Sent from my HTC Desire using Tapatalk 2
The higher the class, the faster the card, max = class 10.
Class 6 card should be fine for speed and will cost less than a class 10 card which is only needed for speed freaks.
djsynth said:
Also, whats an easy way to find out what Class your SD card is?
Click to expand...
Click to collapse
Just look on your card! On my Sandisk 16GB microSD there is an open circle with a number (4), this number is the speed-class!
Recommended for the Desire is Class 4 or 6, Class 10 seems to be incompatible with Desires Hardware and produces lags!
Regards,
Guido
I use a 16 GB Trancend class 6 and it works perfectly. My 6 GB class 6 card was way faster though.
By the way, the method of A2SD used is also very important. SenseEvolution was a lot slower on my HTC desire than Mildwild and both use A2SD, though in a different manner.
I'd recommend a Transcend Class 6 for Data2SD
Im currently using Marange's MIUI V4 rom latest version 2.5.18
my set up LX2X
Shaky's kernel,
wake min 245000 max 111300 lagfree governor
sleep min 245000 max 460000 smartass v2 governor
the rom is really fast and pretty darn stable but every time i open an app that downloads alot of data or is larger i have to wait from 5-15seconds for the menus to pop up, its basically just waiting at black or white screen, i believe this to be because of my sd card but im not sure... alot of apps are normal but some like facebook is the worst and whats app takes about 5-8seconds to open up fully aswel...
is there anything i can do ? i have a 16gb sd card
I have testet with benchmark and found, that the class 10 card has no more speed as the class 4 card. So what, i use the low budget but high capacity class 4 card 32 gb.
Thanks for your observations which are probably useful to someone interested in those kind of roms, but when you say something is...
djsynth said:
pretty darn stable
Click to expand...
Click to collapse
...there are no buts!
huetti said:
I have testet with benchmark and found, that the class 10 card has no more speed as the class 4 card. So what, i use the low budget but high capacity class 4 card 32 gb.
Click to expand...
Click to collapse
Because sdcard and it's class is only one part of the coin. You have random i/o and phones memory controller. Any of the links in chain not working as expected (to be taken relatively as Desire was not intended to use >class6) and you'll get crappy speeds.
Sent from my HTC Desire using Tapatalk 2
Even class2 runs fine for me and it is faster than the specification since it does anywhere betweeen 3-5mg/sec instead of only two.
Its an original sandisk

Class 10 UHS-I cards on Desire?

I am thinking of getting SanDisk 16GB Mobile Ultra Class 10 UHS-I Micro SD SDHC like that one.
I know I will not reach 10 Class speed but I need to replace my current card and this is the only thing I found from SanDisk.
Can I expect it to perform flawlessly with HTC Desire?
impactor said:
I am thinking of getting SanDisk 16GB Mobile Ultra Class 10 UHS-I Micro SD SDHC like that one.
I know I will not reach 10 Class speed but I need to replace my current card and this is the only thing I found from SanDisk.
Can I expect it to perform flawlessly with HTC Desire?
Click to expand...
Click to collapse
I am using this and works flawlessly
impactor said:
I am thinking of getting SanDisk 16GB Mobile Ultra Class 10 UHS-I Micro SD SDHC like that one.
I know I will not reach 10 Class speed but I need to replace my current card and this is the only thing I found from SanDisk.
Can I expect it to perform flawlessly with HTC Desire?
Click to expand...
Click to collapse
I am using the same card as well, and it works perfectly. With full class 10 speeds as well.
I am using this as well... No problem at all... Getting much faster speed..
Thanks all. The reason I need to change my sd card is because right now I have a Samsung 8GB Class 6 which is fast enough in transfers but slow in initialisation and newer ICS/JB roms can't even detect it.
What rom are you using with this card?
has anybody noticed a performance increase while using a UHS-I card compared to class 10 or class 6.
Desire needs sd with high IO because of the low internal memory. Now the question, which cards have higher IO? Class 6 or 10 or UHS-I?
Im using a 16 gb uhs class 10 and no issues at all
Sent from my GT-P7310 using xda app-developers app
Well, I got my own card and indeed it is working perfectly fine.
Would putting a swap partition on it decrease its lifespan noticeably?
have someone tried the 32gb class 10 version? does it work well with int2ext+ or m2sd?
impactor said:
I am thinking of getting SanDisk 16GB Mobile Ultra Class 10 UHS-I Micro SD SDHC like that one.
Click to expand...
Click to collapse
"Mobile Ultra" is class 6 and "Ultra" is class 10. I don't know if there are any other differences apart from speed.
The link you gave is actually selling an "Ultra", although the title is "Mobile Ultra"
Note, I would never buy an SD card on ebay because of the number of fakes (especially Sandisk apparently)
You can get 16GB "Mobile Ultra" on Amazon for £11.45, ie same price as ebay.
Or a 32GB "Mobile Ultra" on Amazon for £22.99
Or a 32GB "Ultra" on Amazon for £18.54
No, I don't know why the class 10 is cheaper than the class 6. However... "class 6" just means that's the minimum guaranteed speed, it might be faster.
NB from what I've read, most class 10 cards don't work on the HTC Desire at all, but some do* However I've also read that internally the Desire can't read at more than 6mb/s whatever you put in there.
*People seem to have success with ADATA 16mb class 10, but someone else said their SanDisk 10 worked, whereas others say the same card didn't work. YMMV
tobydjones said:
AFAIK "Mobile Ultra" is class 6 and "Ultra" is class 10. I don't know if there are any other differences apart from speed.
The link you gave is actually selling an "Ultra", although the title is "Mobile Ultra"
Note, I would never buy an SD card on ebay because of the number of fakes (especially Sandisk apparently)
You can get 16GB "Mobile Ultra" on Amazon for £11.45, ie same price as ebay.
Or a 32GB "Mobile Ultra" on Amazon for £22.99
Or a 32GB "Ultra" on Amazon for £18.54
No, I don't know why the class 10 is cheaper than the class 6.
However... "class 6" just means that's the minimum speed, it might be faster.
BUT from what I've read, the HTC Desire will accept a class 10 card, but only has a class 6 transfer bus, so it can't use it any faster anyway.
Click to expand...
Click to collapse
Not quite right since all sandisk mobile ultra micro sd cards are UHS-1 class cards fastest cards faster than class 10.
They run at double the frequency in a UHS-1 compatible device.
Will still work in the desire just much slower. I get around class 10 speeds from my 8gb .mobile ultra
Sent from my HTC Desire using xda app-developers app
dethrat said:
Not quite right since all sandisk mobile ultra micro sd cards are UHS-1 class cards fastest cards faster than class 10.
They run at double the frequency in a UHS-1 compatible device.
Will still work in the desire just much slower. I get around class 10 speeds from my 8gb .mobile ultra
Sent from my HTC Desire using xda app-developers app
Click to expand...
Click to collapse
That's interesting. It would explain why they're more expensive than the class 10 cards. But if you look at this amazon page, it's listed as class 6, which is confusing.
All this talk about speed and class isn't worth much to any a2sd script.
Class system is about sequential speed I.e writing a large file and you'll get the class speed.
Writing loads of small files and I doubt you'll get your class speed.
Plus the apps on your ext4 partition could well be reading and writing from both you fat32 and ext4 partition on your SD card slowing the whole thing down.
Sent from my HTC Desire using xda app-developers app
dethrat said:
All this talk about speed and class isn't worth much to any a2sd script.
Class system is about sequential speed I.e writing a large file and you'll get the class speed.
Writing loads of small files and I doubt you'll get your class speed.
Plus the apps on your ext4 partition could well be reading and writing from both you fat32 and ext4 partition on your SD card slowing the whole thing down.
Sent from my HTC Desire using xda app-developers app
Click to expand...
Click to collapse
I suppose the hope is that the higher the class the higher the random read/writes as well as sequential speeds.
But the random write performance measured on Tom's Hardware isn't encouraging (November 10, 2011 so not very current unfortunately, but maybe shows that a class 4 SanDisk isn't to be sneered at)
I was using SanDisk class 4 sd card with InsertCoin-1.1.4 Rom. After upgrading sd card to Kingston class 10, it's really improved the performance of the same Rom.
Sent from my HTC Desire using xda app-developers app
Lakmal84 said:
I was using SanDisk class 4 sd card with InsertCoin-1.1.4 Rom. After upgrading sd card to Kingston class 10, it's really improved the performance of the same Rom.
Click to expand...
Click to collapse
I've just bought a SanDisk class 6 'mobile ultra' 32gb card.
Someone's posted a CDM showing a random write speed of 1.222 (!), so I'm looking forward to seeing the effect from swapping from my current 0.01 speed card!
dethrat said:
All this talk about speed and class isn't worth much to any a2sd script.
Class system is about sequential speed I.e writing a large file and you'll get the class speed.
Writing loads of small files and I doubt you'll get your class speed.
Click to expand...
Click to collapse
I started reading from the beginning wondering how long will it take for someone to point it out.
Sent from my HTC Desire using Tapatalk 2
Using the 32gb uhs-1 because of very high 4k write/read ( SDSDQU-032G-U46A) performance, some san disc class 4 cards are able for this, too. Habe never found so fast cards Form other manufactors.
Sent from my HTC Desire using xda premium
impactor said:
I am thinking of getting SanDisk 16GB Mobile Ultra Class 10 UHS-I Micro SD SDHC like that one.
I know I will not reach 10 Class speed but I need to replace my current card and this is the only thing I found from SanDisk.
Can I expect it to perform flawlessly with HTC Desire?
Click to expand...
Click to collapse
Just ordered it after reading the rest of the thread, thanks for the idéa!

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