yashsingh1/xdaforums huggingface dataset:
[Focus General] StriderNo9:
Hi guys, been following the boards on this issue for a while. Looks like these Samsung cards are the way to go. I found a seller on eBay but I couldn't get the back number info from him. I did order 2 cards just in case, I figure they may work and its only 25 bucks if they don't.
[Focus General] hapa papa:
I contacted ebay seller nikolai9770

he said the back of the card reads:

ce

mm83r16guaca-ge

1y041f000 030

made in taiwan
[Focus General] mfaist:
Yes, I will run CrystalDiskMark and post the results when I get the card. The seller that I purchased from was nikolai9770.
[Focus General] vedichymn:
I'm going to pick one of those Samsungs up as well.

I just had a reset/data loss today with Sandisk 8GB class 2, I wonder if my phone is just cursed. :(

Need to find someone with a Nokia so I can start testing my pile of bad cards.
[Focus General] ITDRAGON:
I'll know more in the next few days of testing. I'm using 7 gigs now with no problems that I can see. I want to upload 4Gb of music and 9Gb of video and I'll see how it responds. but so far so good. :cool:
[Focus General] FishFaceMcGee:
7GB is not using the card at all. Get to 9+ and then see.
[Focus General] StriderNo9:
This the seller I bought from also, he gave me the same info.
[Focus General] ITDRAGON:
Thanks for telling me something I already knew.. Also my card is a class 4 not a class 2. Obviously you didn't read where I'm gonna load another 13 Gb on it.
[Focus General] tuffluck:
no i haven't had any problems at all...yet.

i've heard a few people say it's not the card that's the problem, it's the phone. some phones work fine, some don't. maybe my phone just doesn't mind.
[Focus General] FishFaceMcGee:
If you already knew it, then why would it even be worth mentioning that it was working when you're not using it yet? I'm not trying to be a ****; I'm just curious given how defensive you got.
[Focus General] ITDRAGON:
YES!!! OMG yes you are being a **** over the internet...lol . I've been using it ever since the day I recieved it. I tested it without adding an SD card then I added the 32Gb card and I tested functionallity just under 8 Gb of storage. I'll testing it with an additional 13Gbs soon knowing to go beyond the 8Gb internal memory on the phone. Also I was answering someones question, which you didn't read I'll know more in the next few days of testing. Your not going to know any diffrence if you don't do the testing in stages and for a few days at a time to compare the performance. And yes the card is working, do you know how the card get formatted? any clues? it combines the existing 8Gb with any card you add. Kind of like Raid 0 ing 2 hard drives except with the memory cards. That is why the phone will not operate with out the SD card in it once you configure them to run together. Just like raid zeroing 2 hard drives if one fails they both do. Oh did I mention I've been using winmo since the Cingular 8125 which I still have. So before you go stepping on someones post your should think before you hands touch that keyboard. lol who's being a **** now
[Focus General] StriderNo9:
You guys need to hug it out.
[Focus General] jeffgeno:
You are. The fact that you're not using more than 8GB of storage makes your post a useless data point. It's not "working" and you're not "using it." It's just sitting in there after the initial format.

From what we've learned through the crashing, it's likely not a RAID 0 setup and there's no data striping used. It's far more likely that it's a disk span and going above 8GB puts the first bits of data on the card. That's where you get the hangs and reboots.
[Focus General] StriderNo9:
Hmm for the record, unless you are using more than 8GBs of data, yeah its pretty pointless. A lot of people are erroneously reporting their phones work with 32GB cards because they only have 4 or 6 GBs of data used. Gotta do what SuperSport did and push that card.
[Focus General] naplesbill:
Well, I thought it was time to post an update. I am using over 13GB of space on my phone and I still haven't had a single problem. This is with the PNY 16GB class 2.

Also, my friend is still using the Centon 8GB in his phone and he hasn't had any issues either.
[Focus General] xdawis:
32GB is working very well

iI'm using my Sandisk 32GB carc in my leo for about a few weeks. I made some changes in the registry and it.s working without any problems.. I avoid to format it, because in former times I had a16GB card which was destroyed, after formatting. I hope your doubts are leaving.BRs
[Focus General] FishFaceMcGee:
Um... are you somehow running Windows Phone 7 on your Leo?
[Focus General] dhan911:
uh, just noticed this on Samsung's website. Three cards shown compatible with Focus.

http://www.samsung.com/us/mobile/cell-phones-accessories/memory-cards-sub

All are Sandisk (2,4,8GB) and apparently class 2? (C2 in one corner)
[Focus General] HoHoHoHo:
MicroCenter 16GB C2 microSDHC works well

Thanks for tuffluck's post, I picked up a 16GB C2 card from MicroCenter yesterday. Installed it into my Focus. Strange thing was it did not need a format. I tried the 3 buttons bootup and could not get into the format menu. After 15 minutes, I gave up and just let it boot into WP7. I went to About and saw memory size of 22GB total and 20 GB free. Then I loaded it with music and video files which took over 1 hour until it was at 10GB free. It worked really well. I have been using it all day, downloaded a bunch of apps, browse the web, played games, it's very responsive, no problems at all. I will report back if I have any problems. This was the MicroCenter 16GB C2 microSDHC. $23.99 + tax.
[Focus General] jaraya13:
I have my old Sandisk 16GB Class 2 card from my Tilt2, I really want to put that in my Focus... What you guys recommend? I see on first post that it is unstable... Somebody with a different experience?

Thanks!
[Focus General] vedichymn:
So my Focus doesn't seem to be terribly happy when any card is in the device. I get a reboot or two a day, which doesn't happen when the card slot is empty.

Anyone else have similar experiences? They don't seem AS bad with my 8GB Sandisk as they did with the 16GB, but let's be honest, a reboot a day is a bit ridiculous.
[Focus General] tripntx:
Have been well past the 8GB internal memory for almost 2 weeks now. This Patriot 16 GB C4 has not let me down yet. No problems encountered to date. Current memory is at:

Total 22.12 GB

Available 8.42GB

Maybe it'll start giving me problems once I surpass 16 GB total memory usage, time will tell. Really want an inexpensive way to reformat this locked card at home so I can run it on crystaldiskmark to see how it matches up with the Samsung card that is being tested.
[Focus General] djca:
I plan to try the Micro Center card again and see if a second reformatting does the trick. But I first have to finish ilomilo---hate to lose the saved game during reset. :)

Sent from my SGH-i917 using Board Express
[Focus General] TJMJT:
article on sd card compatability

I found this article that is somewhat interesting. It doesn’t look like total conviction but maybe we are heading in the right direction. I don’t know if we are allowed to post web sites but here it is

hxxp://www.wpcentral.com/select-pny-microsd-cards-now-claim-windows-phone-7-compatibility
[Focus General] ITDRAGON:
Ok once again thank you for posting something I already know, and for obviouslly not reading anything I have written. Also you should'nt be posting anything about Raids because you don't know much about it since Raid 0 isn't stripping.

RAID-0 offers NO fault tolerance! If one drive fails - all data is lost!

One RAID-0 offers about double the performance under sustained data transfers compared to one single drive. Basically; byte1 is send to disk1, byte 2 to disk2, byte3 to disk1 again, etc... simultaniously, therefor improving performance

Spanning in Raid 0 If a user wishes to obtain all the capacity of the drives in an array, he may also choose to "span" (merge) the drives. In this configuration disks storage space will be placed sequential where the operating system sees just one huge disk. Unfortunately, there are no other benefits except capacity with the spanning solution. Thus is why if you remove the micro sd card the phone will not work and alos have to put more than 8Gb of data on the total storage system.

Oh and that was the point of me saying who's the **** now.. meaning me.. so again thank you for your usefull insightness. :rolleyes:
[Focus General] StriderNo9:
Okay this is getting old now. Other than turning this into yet another internet geek, pissing contest, lets focus on what matters, like when you put more than 8GBs of data on the phone how does it perform?
[Focus General] jeffgeno:
What you just described is called striping (not "stripping" - that's something a little different that you'll find out about when you're older). RAID 0 is striping without parity (RAID 5 and 6) or mirroring (RAID 1).
[Focus General] tuffluck:
well, if it does crash, you need to attempt to reformat before you give up on it. you also can do it from the about screen, it doesn't have to be via the 3-button reset when the phone is off. just go to the bottom of the about screen and select reset.
[Focus General] kindongo:
My Focus restarts all the time

I have being using my Sandisk 16gb class 2 card since day one. My phone restarts, and then return with the data cleared a least twice every day; then it requires restaring it to get data back on it. 8gb is not enough for me, I just waiting for the certified cards and if that doesn’t solve it, I will be buying an Android phone or maybe Iphone 4 even though I hate apple…
[Focus General] ITDRAGON:
Thanks What I meant is that Raid 0 isn't just "striping" it's also "spanning". None the less I said it was kinda like Raid 0 assuming people would know I meant spanning, because you get the total amount of storage "spanning" and not limited to the smallest drives storage "striping" so if you have 8Gb on the device and add 16Gb you'd only have 16Gb because striping requires the drives to be the same size. Am I old enough yet?:rolleyes: cause I want to learn what this stripping is lol:;)

Anyways.. day 1 of my 20 Gb fill up and no problems so far I've re booted the phone several times and my music plays fine, testing some video formats to see how each one plays.
[Focus General] StriderNo9:
Just an FYI I have one of these Samsung cards in my phone right now, so far I am downloading around 15 GBs of data to it and although its still syncing its going much faster than the other cards I've used.
[Focus General] hector_huerta:
I have a SanDisk 32GB class 2 Mobile microSDHC Card with Adapter sn: SDSDQ-O32G-P36A It looks like a bulk package and it's working after reset and everything seems to be ok after a few hours
[Focus General] GrayWolf:
I've installed a Patriot 16GB Class 4 into my Focus - data is holding after turning it off and then restarting the phone a couple of times. Far better than the behavior that I experienced with the Kingston 32GB card that I had before.
[Focus General] StriderNo9:
How much data do you have on the phone?
[Focus General] StriderNo9:
Just a quick note, I have 11 GBs loaded onto the phone with the Samsung card I bought off eBay and everything is working great so far.
[Focus General] hector_huerta:
Still less than 8gb, but it is running smoothly, I'll post results after a big zune sync
[Focus General] bennyj71:
Has anyone ever tried a TopRam micro card? I see them all over the internet.
[Focus General] tuffluck:
a few hours isn't enough time. most people are experiencing problems after a couple of weeks of use.
[Focus General] clmbngbkng:
A few weeks and more than just music on your device, it seems that apps are really what put the cards to the test. So just fill it up and run the device for a while (weeks).
[Focus General] kawgirlval69:
try a double format... do one and let it reboot...pull the battery and do it again then set it up... im using the same card as you and i had an issue on my first setup... tried this method and havent had a glitch and im using 18 gig of the 22 gig avail..... not a glitch... even just did a new format for a stupid thing i did and did the double again and still no issues...
[Focus General] Quicksilver4648:
A while ago I asked in this thread for a recommendation of a 16GB card and I finally got around to getting one. It has been just over 24 hours since I installed a SanDisk 16GB Class 4 MicroSD card. The total storage is 22.02 GB and 12.46 GB is currently free. So far I have experienced no noticeable problems of any kind. Initially I thought certain things, such as starting the Zune app, were taking longer than before but that issue hasn't happened in a while. I have turned the phone off about two times and everything is still there. I will post back if anything of importance should occur.
[Focus General] kindongo:
Thank u, I will try that
[Focus General] vedichymn:
Just got my 16GB Samsung card off eBay. Says it's class 2. Tried a couple different readers and got similar results:

-----------------------------------------------------------------------

CrystalDiskMark 3.0.1 (C) 2007-2010 hiyohiyo

-----------------------------------------------------------------------

* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 15.162 MB/s

Sequential Write : 9.270 MB/s

Random Read 512KB : 14.739 MB/s

Random Write 512KB : 1.170 MB/s

Random Read 4KB (QD=1) : 2.432 MB/s [ 593.8 IOPS]

Random Write 4KB (QD=1) : 0.042 MB/s [ 10.3 IOPS]

Random Read 4KB (QD=32) : 2.543 MB/s [ 620.8 IOPS]

Random Write 4KB (QD=32) : 0.064 MB/s [ 15.6 IOPS]

Test : 50 MB [D: 0.0% (0.0/14.7 GB)] (x5)
[Focus General] StriderNo9:
I didn't run any speed test with my Samsung 16GB Class 2 card. But so far everything is running fine with it. I have 13GBs of movies, music, and pictures, no stuttering, no lock ups, nothing. The marketplace is fine, and syncing is quick.

I have to say after 3 or so days with this card it's by far the best one I've used, its pretty much perfect. I've tried a lot of other cards also.

Go for the Samsung card guys.
[Focus General] FishFaceMcGee:
Has anyone else found a place to get the Samsung card other than eBay or Samsung Support? There is such little accountability in eBay that I really don't want to buy something from there when microSD cards are already so hit or miss with this phone.
[Focus General] :
Report on Working and Non-Working SDHC Cards

I have been using the following card in my Focus since November 8th with no problems:

Kingston Class 4 32GB

In another Focus I had the 15GB reboot failure with the following card:

Patriot Class 10 16GB

In this same focus, a one and a half year old card is working fine:

Kingston Class 2 16GB

I find it very strange that the old Class 2 card works, but the newer faster Class 10 card does not.
[Focus General] FishFaceMcGee:
Have you had any issues with content syncing incredibly slowly to the Kingston 32GB card once you get over 8GB used?
[Focus General] vedichymn:
There's been some discussion on this in the past. The faster cards will generally optimize for sequential read/write speed vs random read/write, which is what WP7 really wants.

http://www.engadget.com/2010/11/17/windows-phone-7s-microsd-mess-the-full-story-and-how-nokia-ca/
[Focus General] ITDRAGON:
Sandisk 32Gb Class 4 Day 5 nothing to report all is working fine, rebooted once a day various podcast, music and video removals and adds. No application glitches.
[Focus General] StriderNo9:
Go to the guy mentioned before, he is legit.
[Focus General] smuook:
After getting tired of waiting, I bought a Samsung card off eBay from seller doctorwatsonsclinic. It is a 16gb card for $29. After two days, no problems. Still loading it up, but haven't experienced lag, hangs, or reboots yet. Fingers are still crossed but happy so far.
[Focus General] HoHoHoHo:
It has been over 1 week with MicroCenter's 16GB Class 2 card. 22GB total, 10 GB free. no problems at all. Very fast card, no slow down. Sync speed is normal. Only $23.99 + $5.99 shipping. SKU	988618

www.microcenter.com/single_product_results.phtml?product_id=0304662

Edit: Now it has been 2 weeks without any problems.
[Focus General] daniel_leavitt2000:
Just a question for those of you who had to reset your phone with a new card. Does your music sync automatically when you reset it? I have too many MP3s to fit in the 24GB I have on the phone, so I have been hand picking the songs I want to sync. Does this sync list reload after a rest?
[Focus General] ITDRAGON:
You can creat a playlist using the zune software and sync it over, then the zune software will only bring over songs on that playlist.
[Focus General] :
No slowdown with Kingston 32GB SDHC

Not that I have noticed, my original sync was very slow due to conversion of my music from 320kbs to 192kbs. After that conversion everything syncs quickly, similar to that with the 16GB Kingston card. I have not noticed any particular slowdown in sync speed.
[Focus General] FishFaceMcGee:
But you are using more than 8GB on the phone, right?
[Focus General] Reflexx1:
If we had 10 people here claim success with the same card, would that really be any indication that the card is good to use?

From what little I understand, for most consumer cards, the random data access speeds aren't really tested to be within certain parameters. So, some could be faster than others even if they have the same SKU.
[Focus General] scifan:
I received a card with similar numbers from Verizon Wireless shipped with a Motorola Droid-X...
[Focus General] ahjushshi:
I purchased a MicroCenter brand 16gb C2 microsd card and ran CrystalDiskMark on it. here are my results and now i'm going to put it in.

will post again when I have the card full.

-----------------------------------------------------------------------

CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo

-----------------------------------------------------------------------

* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 15.493 MB/s

Sequential Write : 10.108 MB/s

Random Read 512KB : 15.165 MB/s

Random Write 512KB : 0.716 MB/s

Random Read 4KB (QD=1) : 3.442 MB/s [ 840.3 IOPS]

Random Write 4KB (QD=1) : 0.014 MB/s [ 3.4 IOPS]

Random Read 4KB (QD=32) : 3.448 MB/s [ 841.8 IOPS]

Random Write 4KB (QD=32) : 0.022 MB/s [ 5.4 IOPS]

Test : 1000 MB [E: 0.0% (0.0/14.7 GB)] (x5)

Date : 2010/12/30 0:13:22

OS : Windows 7 Ultimate Edition [6.1 Build 7600] (x64)
[Focus General] hector_huerta:
Still using the SanDisk 32GB it has 10GB free, and it is working great, no slow downs or reboots is working at the same speed as before.
[Focus General] Rcon942:
Kodak 16GB Class 4 MicroSHDC

This card does not work.

I followed the steps outlined on the Samsung site, filled the phone to capacity with approx 50 megs remaining, turned the phone off & everything was gone. After turning the phone back on, I checked the "about" in the settings & it displayed 15.73mb Total Storage.

Here is the detailed info about the card:

Kodak 16GB Class 4 MicroSHDC

Model above the barcode: KSDMI16GPSBNAA Rev A

Product of Korea

On the back of the box it looks like this card was manufactured by Lexar

Hope this helps somebody out there.
[Focus General] ahjushshi:
I synced the first day, with music and tv shows.

Total Storage: 21.93 GB

Available Storage: 5.59 GB

Total sync took about 30 mins or so. So it wasn't too bad, since then i've added music from my zune pass and updates and transfers have been pretty quick, not experiencing any sluggishness.

I'll post in about 2 weeks when and if there are any glitchy behaviour. But hopefully msft will have a list out soon so this thread can go into the archives.
[Focus General] Omen1337:
Just thought I'd post my results with a 32 GB Class 2 SD Card. I have 29.58 GB used out of 36.90 and the phone restarts on me about 4 times a day. Luckily the phone restarts quickly so it hasn't been too big of an issue, but I really hope there is going to be a software fix soon.

The phone usually restarts about twice in a row every 12 hours, after the second restart it pops up in the default mode, as if it's only on 8 GB but another restart will fix the problem.
[Focus General] PaullikesWINMO:
If anyone has a 32GB microSD card working, can you list the manufacturer, class, and actual mfg part# and where it was purchased? I want to get a 32 GB because of the obvious capacity, but don't want to mess around with it for days and then have to return the memory if not working. Also listing the place of purchase will cut down on having to search who carries it in stock. Location can be in USA or Canada. Much appreciated.

oh.. I found this:

- SanDisk microSDHC_32GB

SDSDQ-032G-A11M

through here http://windowsphonemedia.com/2010/11/20/scandisk-announces-5-wp7-certified-microsd-cards/

Still doesn't give me place to purchase but it's a start. Also does it really work (has anyone actually used this specific one)?
[Focus General] Sebo1985:
@ITDRAGON: Anything new from your side?

Perhaps at CES the whole microSD card story will be solved, at least i hope so...
[Focus General] Red Grenadine:
I've used this specific one. Loaded ~25gb on it. Worked for 2 days, then reset the phone to ~15mb. Reformatted and tried again, worked for 3 days, then reset to 15mb again. Am returning the card for a refund. Frustrating
[Focus General] vedichymn:
Just FYI, these are not actually certified. Samsung pulled that very quickly, the site you linked just never actually posted a correction.
[Focus General] Sebo1985:
...ok read the whole thread right now, pretty impressive difficult.

Did anyone else try the Komputerbay 32gb that is stated as working somewhere here and in the consumer reviews at amazon?

http://www.amazon.com/gp/product/B003ZTEEHI/ref=oss_product

Let's hope for this Samsung Cards and for CES...
[Focus General] FishFaceMcGee:
This is old, and SanDisk has since pulled those listings. I had a 32GB SanDisk but did not check the model number before sending it back to Amazon.
[Focus General] ITDRAGON:
Happy New Year.. So far I have been loading up about a gig every other day and I'm up to 29 Gb without any problems. Just various podcasts, MP4's, and music.

Here's the link to the one I purchased on Amazon Um yay that's the model number I've been using FishFace, but like I said I got a class 4 not a class 2

http://www.amazon.com/gp/product/B003OA8T92/ref=oss_product
[Focus General] FishFaceMcGee:
Well, according to the order page, this is the card I ordered that didn't work. Mine was Class 2, if I recall, though.
[Focus General] jessiethe3rd:
I have the Kingston 32GB card wit 10GB of the 32GB filled up - NO issues what so ever yet. I'll try to update once I get past the 15GB point.
[Focus General] PaullikesWINMO:
What was the manufacturers part# ?
[Focus General] Sebo1985:
Of course i wish you a happy new year also :)

Could you post a picture of this class 4 microSD card, just for comparison reasons for ordering at online stores.

Thanks in advance!
[Focus General] OGCF:
I'm going to go out and pick up a Micro Center card tomorrow, so I was just wondering how I should install the card.

Some people said to put it in and boot up the phone. Others said to do the procedure in the user guide. Which one is recommended?
[Focus General] PaullikesWINMO:
To confirm:

The 32GB Sandisk Class 2 card is working with no issues?

MFG Part# SDSDQ-032G-A11M
[Focus General] tjy:
My SanDisk 32GB class 2 card did not work. Seemed stable at first, but as the days went on I got more random reboots. In some cases the phone would start up as if is were recently hard-reset, but would then come up with my apps and settings upon another reboot. Finally, yesterday it rebooted into the factory settings and my apps and settings never came back after several reset attempts.
[Focus General] PaullikesWINMO:
If anyone has a working working 32GB microSD card for this phone then please post the manufacturer name and part#. Don't worry I won't hold you responsible if it doesn't work with my phone. I don't want to spend time trying to figure out which one to buy if someone already has a working combo.

Thanks in advance!
[Focus General] Red Grenadine:
I've already replied that it does not