yashsingh1/xdaforums huggingface dataset:
[Focus General] paschott:
The best cards I've seen so far are the Sandisk Class 4 cards. Sandisk pays attention to the random access/write times more than other manufacturers. You really don't want a higher class SD card. Manufacturers use a lot of tricks to speed up those cards for large file read/write, but smaller files (like those used for the OS) will really suffer as a result. Of the ones you listed, I'd try the Patriot first. You could have success with the generic card. I doubt you'll like the PNY C10 card. If you want to get an idea of what will happen, get some of the SD card benchmarking software (listed somewhere in this thread, I'm sure) and look at the small file and random read/write time values as opposed to the large file/sequential times. Faster times on those smaller and more random files will give you a better experience.

I'd say just go out and get a Sandisk C4 card and use that for the best experience. I know I've seen good things about the 8 and 16 GB cards. The 32GB cards were too expensive to be practical for all when this thread started and success there was spotty at the time.
[Focus General] EnderPsp:
@devicedementia: there is no direct corelation between how fast a memory card is and the quality of the picture or video.

The best quality video you can get on the Focus is the 720p video, that records at about 45 MB per 1 min so that's less than 1 MB/sec (aka Class 1).

Most working microSD cards are class 2/4 so you're safe with any of the cards (including class 2) if you're concerned about jerky recording/playback.

@paschott: Sandisk is not a bad choice, but the best cards imho are Transcend. First, because of the quality and secondly of the warranty (lifetime, most card producers are 5 years).

Of course there are other choices like Kingston, Sandisk etc. However these 2 tend to be the most copied ones so chances are high you might end up with a bootleg :) Even if it's a good quality one!

Refreshing the thread

: the compiled list of all the working cards compiled from this thread up to now you can find in the Focus wiki.
[Focus General] devicedementia:
Will try the patriot class 4 first

paschott and enderpsp...thanks for the replies....i cancelled the order of the pny card. since i already have the patriot cl4 i will gamble it since i dont stand to lose much. after that i will decide if i want to upgrade depending on the outcome. i am concerned about choppy video and poor quality pictures because of a poor card. I have located several used focus phones in my area for sale and the sellers all say it takes good photos and vids. ...... as far as reviews go....some samples were very good and some very bad.....guess ill take a chance because i really like the phone.
[Focus General] santhoshr:
deleted my post since I added it in wrong accidentally
[Focus General] devicedementia:
focus here tommorrow

i ordered my focus with one day shipping, hoping to test it soon.....
[Focus General] Astrojun:
Sandisk 32 GB Class 4 works fine in my Focus. Filled up almost the entire storage with music and videos with no hiccups in performance.
[Focus General] nando_donk:
i have 2 focus, and using

v-gen 16 gb only 8.5$

working perfect
[Focus General] imggopi:
Transcend 32gb class 10 microsd stability

Hi EnderPsp, I really appreciate your post. I want to know whether you got any instability issues after you using Samsung focus with this card? I am going to buy one for my focus.

Thanks
[Focus General] EnderPsp:
You're welcome.

It's definitely working good and I've had no issues so far. However I didn't get to fill half of the ~40 gb yet so I can't make a firm 100% promise.

Again refreshing the thread

: the complete list of working cards compiled from this thread up to now you can find in the Focus wiki.
[Focus General] devicedementia:
Have Focus Now....Will Add Memory Soon

I have had the Focus now for about a week and its an awesome phone and very fast. The amoled display makes the mediocre photos look like million dollars pics...lol...

WP7 is so different from android and symbian(my last two phone OS's) that i decided to use it a bit to learn the zune software and how everything behaves BEFORE I upgrade memory........

I am thinking that I will go with sandisk class 4 card havent decided capicity yet...but wouldnt mind having 32gb. :)
[Focus General] EnderPsp:
Most 32 gb class 2 should work, even those not on the updated list. Also, there are several choices now in the working 32 gb. so you can make up your mind :)
[Focus General] aFaridun:
new card

Yessterday bought SanDisk 32GB Class 2, not working :(
[Focus General] EnderPsp:
Are you 100% sure it's genuine SanDisk? Where did you buy it from? (be specific, please - might help others)
[Focus General] 1031982:
Well, I tried a 32GB class 4 Sandisk that didn't work a while ago, before Mango was released. It was the model listed in the wiki as working.

I am thinking that there may be some combinations where it simply won't work, no matter what.

For all info relating to this, it's in this thread. Just search for my name and it will be quick to find the info.
[Focus General] Antonio713:
Hi Guys, I want to buy Silicon Power 16GB MicroSDHC Class 10 for my Samsung Focus.

Someone already bought this card? It is good for my device?

[Sorry for my english]
[Focus General] EnderPsp:
Did you do a hard reset immediately after install? And secondly, was the card locked after you tried to install it? If it wasn't, you can try again. Before that, make sure the card and the card assembly is clean (carefully for the assembly). If the card wasn't locked, Focus didn't see it. Which means you can try again.

I hope you don't have a defective microsd card assembly (did you buy the phone or is it second hand?).

Hope this helps
[Focus General] aFaridun:
Transcend <TS32GUSDHC4> microSDHC Memory Card 32Gb Class4

Works perfect
[Focus General] 1031982:
I did a hard reset before and after the install just to be sure. The card was locked, and the assembly was clean. After that, I believe my Focus said I had around 37GB - 38GB of total storage.

The phone at the time was new from ATT.

This was a while ago, and I have simply returned the card and gotten a refund.

In addition, I have had to get my phone replaced by ATT multiple times, and am now running a phone that seems to be just fine with a 16GB card.

In any case, it seems the best bet is to go with a Transcend 32GB card. A later date, I will go with them. That will be fun, as I will make a backup of my phone, and then backup the backup files elsewhere just in case the card doesn't work.
[Focus General] Furry Atom:
Hey guys. I just bought a second hand focus for $100 just to try out WP7. My A-data card from my old Galaxy S didn't work, am I correct to assume that SanDisk or Transcend seem to be the best companies to get a new card from?
[Focus General] imggopi:
Transcend 32 gb class 10 works perfect.

Thanks EnderPsp,

The idea to go with a class 10 card was perfect. I can copy the music very fast on my focus . I got this card for 33$ in India.

Thanks for review.

-gopi
[Focus General] EnderPsp:
Transcend would be my personal recommendation, but any card from the working list should be fine.

You're welcome, thanks for confirming!

Thread refresh

: the complete list of working cards compiled from this thread up to now you can find in the Focus wiki.
[Focus General] 1031982:
I'm looking at getting the transcend TS32GUSDC10 next month. Any recommendations on where to buy it for a low price and high reliability other then Amazon?
[Focus General] Furry Atom:
Has anyone had any experience with the AUSDH32GCL4-RA11? It's a 32GB Class 4 card from A-DATA. I would imagine it would work if the class 2 version does, but I would love to know if anyone could confirm.
[Focus General] hrsh147:
Another working sd card

Samsung 16gb class6 micro sd card also working.its working fine
[Focus General] 1031982:
Ok, from looking at the compatibility list, I see that Transcend 32GB Class 4 is there without an exact make number.

Would this be an OK card to go with?

http://www.amazon.com/Transcend-mic...6?s=electronics&ie=UTF8&qid=1335995939&sr=1-6
[Focus General] EnderPsp:
Yes, TS32GUSDHC4E that's my other 32 GB card class 4, it works.
[Focus General] 1031982:
Thanks.

And it's ordered. I'll report when I get it via updating this post, and after a few months or if it fails I'll make another post about the status as a just in case. I will also post the exact model number as long as I ca read it, as I got the frustration free packaging.
[Focus General] 1031982:
Well, got the 32gb card installed and benchmarks say I have improved performance over the 16gb card. Got what I can re-I stalled (some things aren't in the market anymore :( .) and all my music synced as well as videos I want and pics.

I got 15.66gb of 36.90gb free, so I'm obviously using the memory card. :P

Hopefully my phone doesn't crash after a month.

I'll post here again in a couple months alerting either success or failure as well as the exact model printed on the card.
[Focus General] jiraiya_s:
I bought last week a Transcend microsd 16gb class 4 and it's working fine. No problems with it or any kind of lag on it so far. Boot time on the phone takes a couple of seconds more but I almost filled the phone :). Will have to buy now the 32 GB card.
[Focus General] EnderPsp:
Thanks, added to the list. If you have the exact card cde please share!

Thread refresh

: the complete list of working cards compiled from this thread up to now you can find in the Focus wiki.
[Focus General] jiraiya_s:
Transcend 16 GB Class 4 microSDHC Flash Memory Card TS16GUSDHC4

I bought it from Amazon

http://www.amazon.com/Transcend-Cla...4?s=electronics&ie=UTF8&qid=1336888923&sr=1-4

Will post an update in week or so to see if there are any problems with the card.
[Focus General] ihabsad:
hello every body

after my first focus has stolen, I bought another one to take the advantage of memory card slot

which is very important to me

because I trust sandisk a lot I plan to buy the 32 gb class 4 SDSDQ-032G-A11M from here http://www.amazon.com/SanDisk-32GB-MicroSDHC-Class-SDSDQ-032G-A11M/dp/B005OGWJUE/ref=sr_1_2?s=electronics&ie=UTF8&qid=1330683132&sr=1-2

this card is confirmed working in the samsung focus wiki

but in this page they are saying that there is a newer version of this card SDSDQM-032G-B35

which is here http://www.amazon.com/SanDisk-microSDHC-Memory-Packaging-SDSDQM-032G-B35/dp/B004G60AD6/ref=dp_ob_title_ce

so I'm a little bit confused to buy the newer version or the old version which is certified working

any advices or thoughts please

thanks in advance
[Focus General] EnderPsp:
@ihabsad:

It's some risk. I would assume that the new card should work, considering it's the same size/class, just a firmware update.

However, the MicroSD card specs requirements for WP7 aren't relaxed at all so there's the question of what did the manufacturer actually did in the update. They might have improved speeds and lowered the access time.

I would personally go for the new one, considering the low cost and lower risk.
[Focus General] ihabsad:
Thanks EnderPsp for your opinion,

Me also is biased toward the new card considering that all windows phone 7 phones includes a card slot shipped with a sandisk card

like the HD7 and the Dell Venue Pro, so I assume that all sandisk cards should work just fine,

or does any body has some other experiments to share with us?
[Focus General] aeroloverz:
hey everyone, i want to ask about this card : Transcend 16GB Class 10 TS16GUSDHC10

i benchmarked it(picture attached), is it good enough to put it in my focus ?
[Focus General] EnderPsp:
Definitely not enough to tell if it's good or not. You need to test access time.

For that purpose, I recommend H2Benchw (latest version is 3.16)

The program is in german, but using this command line:

H2benchw.exe -english -a -! -s -w results.txt NUMBER

you should be able to test the card as a removable drive (using a card reader), and the interesting numbers are mainly in the random access write part. NUMBER is the physical disk to test (0-99). To identify it, run "diskmgmt.msc" and you will see: Disk 0, Disk 1... etc. Normally, mounted memory cards, flash disks are listed as "Removable" so they should be easy to spot. Another thing to know is there should be no partitions on the drive. If there are, delete them, either in Disk Manager or using the DISKPART command.

Here is for reference my Transcend 32 GB Class 10 microSD card, that is working in the Focus:

Sustained transfer rate (block size: 128 sectors):

Reading: average 17769.6, min 17557.1, max 17931.9 [KByte/s]

Writing: average 9182.2, min 7972.4, max 9991.2 [KByte/s]

Random access read: average 0.85, min 0.62, max 1.10 [ms]

Random access write: average 7.11, min 1.96, max 18.00 [ms]

And another example on a 2 GB Class 2 microSD I just tested (don't know if it works in Focus - did not test - but random access write is a bit high):

Sustained transfer rate (block size: 128 sectors):

Reading: average 10048.4, min 9808.7, max 10241.1 [KByte/s]

Writing: average 5468.9, min 2040.8, max 6570.1 [KByte/s]

Random access read: average 3.06, min 1.37, max 5.50 [ms]

Random access write: average 82.82, min 4.98, max 145.87 [ms]

I don't have any other card results (or database, for reference), but you can use the 32 GB card as reference. If you see considerable larger numbers for average and max (read and write), then the card will most likely not work.

Testing the 32 GB card took ~100 minutes, the 2 GB card ~10 minutes.
[Focus General] zulikapunk:
A-DATA

I just found this thread, I'm using a 16 GB A-DATA CLASS 4, and everything seems normal, I don't have other phone to compare so I don't know how it's doing on the speed department.

I've done several soft-resets and all my music and files are intact :), I even removed the SD card for a moment and nothing happened.
[Focus General] kcnanand:
Strontium 32GB SD CARD CLASS 10 fully working

Strontium 32GB SD CARD CLASS 10 is fully working. Tested with multiple resets, reboots and even 2 different rom installs.

Spec

Brand: Strontium

Model/Type: MicroSDHC Card

Capacity: 32GB.

Class: 10.
[Focus General] EnderPsp:
And here is the test result for Transcend 32 GB Class 4 (my good ol' card) using H2benchw 3.16. You can also use this for reference, the card worked flawlessly. I've included the full test details, however only the last 4 lines really matter.

Capacity: 62332200 sectors = 30436 MByte

Interface transfer rate w/ block size 128 sectors at 0.0% of capacity:

Sequential read rate medium (w/out delay): 14018 KByte/s

Sequential transfer rate w/ read-ahead (delay: 5.02 ms): 14676 KByte/s

Repetitive sequential read ("core test"): 14384 KByte/s

Sequential write rate medium (w/out delay): 4952 KByte/s

Sequential transfer rate write cache (delay: 14.22 ms): 9922 KByte/s

Repetitive sequential write: 11853 KByte/s

Sustained transfer rate (block size: 128 sectors):

Reading: average 14011.3, min 13757.1, max 15466.0 [KByte/s]

Writing: average 4250.9, min 3054.1, max 10295.4 [KByte/s]

Random access read: average 1.04, min 0.84, max 1.77 [ms]

Random access write: average 49.26, min 4.44, max 103.23 [ms]

And here is the full result for the Transcend 32 GB Class 10, again, for reference:

Capacity: 61304040 sectors = 29934 MByte

Interface transfer rate w/ block size 128 sectors at 0.0% of capacity:

Sequential read rate medium (w/out delay): 16999 KByte/s

Sequential transfer rate w/ read-ahead (delay: 4.14 ms): 16990 KByte/s

Repetitive sequential read ("core test"): 16994 KByte/s

Sequential write rate medium (w/out delay): 8366 KByte/s

Sequential transfer rate write cache (delay: 8.42 ms): 12608 KByte/s

Repetitive sequential write: 9914 KByte/s

Sustained transfer rate (block size: 128 sectors):

Reading: average 17769.6, min 17557.1, max 17931.9 [KByte/s]

Writing: average 9182.2, min 7972.4, max 9991.2 [KByte/s]

Random access read: average 0.85, min 0.62, max 1.10 [ms]

Random access write: average 7.11, min 1.96, max 18.00 [ms]
[Focus General] devicedementia:
My 32gb sandisk class 2 is here....want suggestions

ok my XDA comrads, im holding in my hand my 32gb sandisk class2 microsd ordered from amazon...$17 delivered to my door. It shipped from new york. it has serial numbers on the front and the recessed shiny rectangle on the back. my pc reads 29.7gb but i am aware that this could be software to show 30gb....anyone want to suggest if i should run a test, copy a crap load of pics to it or stick it into my focus and pray as i give the phone the 3 finger salute?...CORRECTION...after viewing it with a magnifying glass.....its a class 4 but i ordered a class 2....bravo.....
[Focus General] EnderPsp:
I warmly recommend H2testw to test the card, you can find more details here and here. Better than filling the card with "junk" :)
[Focus General] devicedementia:
i filled the card with pics

i already fille the card with 25gb of pics. i formatted the card to ntfs before i did that...write speed was kinda slow...2,5-3.0 mb/sec but i figured it was because of ntfs format.....i just start the test(h2testw) to see how that does...will let you know...
[Focus General] devicedementia:
test results

h2testw results.....i expected write speed to be faster but...i guess thats ok..

Test finished without errors.

You can now delete the test files *.h2w or verify them again.

Writing speed: 3.15 MByte/s

Reading speed: 16.8 MByte/s

H2testw v1.4

i have the card filled with data....26gb free of 36gb...so i should be well into the card...i have notice a slight slow down but the fone works fine so far....only other thing...videos taken with the phone that have been reloaded to the phone....have no pic to show what occasion it is....shows blank but plays fine...how can i correct that?
[Focus General] bugron:
Hi everyone!

My problem is

As you can see in this screenshot, there is SD SANDISK 61MB Class0. (61MB instead 16GB, HTC HD7) What does that mean? Is the memory card dead?
[Focus General] EnderPsp:
I'm not sure what your ask is.

Did you use this card in a HTC HD7?

A few scenarios I can see:

1. If it's a new card, seems to be a fake one.

2. If it's been used in a Focus and you tested it in a HD7, either it's locked or there's something else going on

3. If you used it in a HD7, and tested it on a computer, it might need to be unlocked as well (similar to how Focus "locks" microSD cards) and re-formatted.
[Focus General] SuperSport:
Have you tried a Hard Reset on the phone to see if that will reformat it using the full space?
[Focus General] bugron:
Yes but without any positive result.
[Focus General] EnderPsp:
Old card? New card? Same card used in the same phone? Same card used in another phone?
[Focus General] bugron:
New phone, new card, same card used in the same phone.
[Focus General] HellBoyX2:
I got it working perfectly on. Hope you can update the list now.

Sandisk Mobile Ultra - Class 10 - 32GB

Samsung Microsd - Class 6 - 16GB
[Focus General] EnderPsp:
Updated, thanks! Do you know the exact models of the cards? (eg: SDSDQ-032)
[Focus General] devicedementia:
So far so good

to the ones having problems with your new card only showing 16mb's.....try to format it with your pc that will show u how much space you really have....if u only have 16mb's then send it back......

I have had sandisk 32gb class4 in my phone for more than a month and have not had the first hiccup....i have 36.9 gb total and 18.05 available so im well into the card, i loaded a bunch of videos and pics on it when i first installed it....its been working great.
[Focus General] HellBoyX2:
SDSDQY-032G-U46A - Sandisk Mobile Ultra - Class 10 - 32 GB

Samsung - i couldn't find the model no. i thrown out the carton..
[Focus General] 1031982:
SDSDQY-032G-U46A is the model number :)
[Focus General] bhutoria_1989:
Samsung 8 GB Class 6

Samsung 16 GB Class 6

Both cards are working absolutely fine with no hiccups.
[Focus General] SnuffThePunkz:
I have been running a Patriot 32GB Class 10 card since Feb on this year, and it has operated flawlessly. The brand from what I hear has been hit or miss with this phone, but it was on sale for $25 and I couldn't pass up the price.
[Focus General] ashwinpadmanaban:
SanDisk 16GB Mobile Ultra or Extreme Pro

Hi,

I'm planning to buy a SanDisk 16 GB memory card. Is it wise to go for either mobile ultra or extreme pro ?

Or is it wise enough to stick to normal SanDisk 16 GB class 4?

Please reply.
[Focus General] EnderPsp:
Depends on your usage. I found 16 GB not enough for me but then I'm heavy on media (videos, music, games/apps) so I went for a 32 GB class 4, which suited perfectly. Later, a 32 GB class 10 replaced it and it made some difference but not that significant (just syncing faster, mostly).

If you sync often enough and you don't plan to have many apps/games/music/video 16 GB class 4 is good enough.

Otherwise I'd advise on a 32 GB class 4 or even a 32 GB class 10.

You want to do it right the first time, trust me. You don't want to be switching cards later, as you'll lose your installed apps/data so better give it a good thought before you go for either. The price difference shouldn't be an issue though as most good class 4 and even 32 GB class 10 are quite cheap nowadays.
[Focus General] takatori:
My microSD is 32GB, it not work :(
[Focus General] EnderPsp:
Some details would help: brand, class, model, origin of the card (where it was bought) and details around "not work", ie what exactly (is not seen, data is not kept after reset, other issues etc.)
[Focus General] syed.ali:
transcend 2gb working
[Focus General] EnderPsp:
Thank you, but 2 GB cards are basically too small (internal memory is 16GB so 2GB is ~12%, barely noticeable).

Listing 4GB+ in wiki.
[Focus General] rafeeqguddu:
http://xdaforums.com/wiki/Samsung_Focus

Check this page it says sandisk class 4 doest work or having two problems

but ur post says its working

wat is this

please tell me perfect list

for sandisk
[Focus General] EnderPsp:
I'm maintaining the wiki and it's accurate.

What post are you talking about? What size is the card?
[Focus General] amd1982:
perfect work´s

Patriot 16GB Class 4
[Focus General] EnderPsp:
Already in the wiki, but thanked nonetheless.
[Focus General] Saiyaku:
i know this is kinda offtopic, but since i'm not allowed to post anywhere else, here will have to suffice: ender, thank you very much for the fantastic work on the focus wiki. besides being a wealth of useful information, your knowledge and helpful attitude made me decide to bite the bullet (yeah, this late in the game!) and imported an used focus straight from the u.s., since winphones are practically non existent here... so far, this phone has met and exceeded my expectations, much more considering the terrible badmouthing from the usual retards

thanks again to the folks @ xda and especially the guy maintaining the wiki, in this case, you :highfive:

going back into topic, let me at least corroborate that kingston 16gb class 4 cards work flawlessly here
[Focus General] EnderPsp:
Thanks mate, glad to see you've joined WP community. Welcome! I'm sure you'll enjoy your experience, Focus is one fantastic phone. Beaten by the next generation (Lumia 920 etc) but nonetheless one of the best WP7 phones you coulda pick :victory: (btw, thanks for confirming the card!)

Now, about the wiki, I can't take credit for it, but I did add a lot to it. Its purpose is to help folks get the most (useful) info about their phones, quickly.

On behalf of everyone who's contributing here@XDA, glad to hear it's useful and again, welcome and enjoy your phone!
[Focus General] Testware:
My 16GB Sandisk Class 4 has been working fine for about 4 months now.