yashsingh1/xdaforums huggingface dataset:
[Focus General] MKohlman:
Right now I don't think there is any consistently working 32GB Card. I have a Sandisk 32Gb Class 2 installed (and has been installed since the day I bought my Focus on November 8th) and while it generally behaves, it is by no means perfect as I do average about 1-2 spontaneous reboots per week and occasional stuttering and delays when running on battery. This is not enough to make me yank the card, but if someone is looking for rock-solid stability 32GB may not yet be the way to go.

- MEK
[Focus General] psills:
So far it seems as if the only 100% reliable cards are:

Samsung 16gb Class 2

Sandisk 8gb Class 2

Sandisk 16gb Class 4

I have checked into some of the store brands by contacting the companies (Microcenter & Fry's). They source cards from multiple vendors depending upon the best prices they get at any one time. Since they do not make them, and since they get them from a variety of vendors and sources, there is not possible consistency. While one user may get a good card, the next may get a dud. Given that this is a common practice, I would think that store brands are no good at this point in time - hit or miss.

So far, these are the only 100% reliable units.
[Focus General] FishFaceMcGee:
I thought people had found the 16GB Class 2 from SanDisk to be unreliable.

Also, according to the Samsung CS reps I've talked to on Twitter and the phone, the only certified card is SanDisk's 8GB Class 4 card. For those that have read the manual, you know this is different than what the manual says as it says the Class 2 is the certified one. The model number is SDSDQ-8192-1024 which, as far as I can tell, is not available for purchase ANYWHERE, so that's awesome.
[Focus General] psills:
Note: Sandisk 16gb CLASS 4

Haven't heard of anyone having problems with this card.

I have used it now for a while, fairly full - no problems.
[Focus General] PaullikesWINMO:
I'd be willing to live with a 16GB card if it means it's more stable. In either case if you have a working combo, can you please post the Manufacturers name and the MFG part# ?

Thanks !
[Focus General] jaraya13:
In fact, in this exact same moment I just bought the SAMSUNG 16GB CLASS 2 from the ebay seller nikolai9770

Something that gives me extra confidence with this one is that it is Samsung branded. And I read in posts before it works great with zero problems. Can anyone reconfirm this, just to be sure about my recent purchase.

Thanks in advance.
[Focus General] naplesbill:
My PNY 16GB and Centon 8GB have both been flawless since Nov.
[Focus General] vedichymn:
I've actually had one of these fail on me.

I've been using a Samsung 16GB card from this seller for a week or so now with no issues at all. Then again my Sandisk 16GB seemed stable for a couple weeks, so we'll see.
[Focus General] ITDRAGON:
Problem is this class 4 I have used the same part number as the class 2's, There was something about sandisk phasing out class 2 and replaced them with these class 4's. only thing I see diffrent from the pictures of class 2's I've seen compared to this class 4 is it shows a 4 instead of a 2 on the front of it. Part number on the packaging is SDSDQ-Q32G-A11M
[Focus General] Brent01:
The part number for the class 4 card is different from the class 2. I have one of the class 4 32GB SanDisk cards and its part number is SDSDQ-032G-P36M on the packaging.
[Focus General] Sebo1985:
I think the last 3 or 4 characters are more a regional code. A11M for America, E11M for Europe and so on.

Like I said: Just my thoughts.
[Focus General] FishFaceMcGee:
I have a hard time believing that is true with one of them ending with P36M. What region would that be for?
[Focus General] SuperSport:
UPDATE

Ok, here's an update on my "Samsung Certified" 16GB Samsung Card "Received Direct from Samsung".

Description:

On Front;

Samsung

16GB

MicroSDHC

Class 2

On Back;

CE

MMB3R 16GUACA-GE

I Y073F000 030

Made in TAIWAN

After some time using this card and this phone, I've come to a few conclusions...

I occasionally run into lagging issues now after using this card for a while. I have NOT had even one unrequested reset yet. That's good. BUT, it does lag quite often, and the screen becomes unresponsive quite often.

With that said, I'm finding OTHER reasons for some of the lagging issues.

It's not all about the SD Card: (I've tested WITH and WITHOUT it.)

1. Any time it's syncing, (this can be expected though).

2. Any time Apps install or update, (to be expected).

3. Any time you wake up your phone and you are on WiFi, (to be expected, the phone NEEDS to hook up to the router each time you wake it up).

4. Any time the battery starts getting low it's possible, not always, but more likely.

5. Also, try This: Hold the phone in your hand and move around the menus. Works pretty well, huh? Now, lay your phone on your couch or bed mattress and try moving around the menus. Mine wont do ANYTHING. Pick it up and it's fine again. As a matter of fact, when the phone has anything soft against the back or bottom of the phone it starts to react sporadically. It seems the sensors are ubber sensitive to anything around the phone.

So, it appears there are a few things that can cause the phone to act strange, but I figure all of these things can, and will, be fixed with software updates. I hope Microsoft/Samsung are watching this and other threads to be sure to incorporate these fixes, along with others. And PLEASE let us know what SD Cards are compatible! It's been over a month now guys!

My final thoughts: I still Love this phone and will keep it as my daily driver. I can put up with these inconveniences for the time being in exchange for a super fun super cool phone.
[Focus General] Brent01:
Interesting, I never really tried to use the touch screen of the phone when it is laying on my couch but I just tried after reading your post and had the same experience. Worked fine in my hand but with it laying on the couch beside me the touch screen did not work with only my pointer finger touching it. The Back, Windows and Search buttons below the screen responded fine but the touch to the items on the screen or scrolling did not work.

Update: If I try to use the touch screen when it is laying on my couch and have more than one finger touching it then it responded better. For example my thumb and middle finger touching each side of the phone while my pointer finger is touching the screen. Once I removed my thumb and middle finger from the phone and only my pointer finger is touching the screen then it stops responding to touch.
[Focus General] FishFaceMcGee:
SuperSport, did you have any sync-speed issues? Everything transferred in a reasonable time?
[Focus General] SuperSport:
That seemed fine to me. I've got a LOT syncing, so it took a while, but probably about 15 mins initially, and now only a few seconds each time, or up to a minute for something large.
[Focus General] Brent01:
Just received my Samsung 16GB Class 2 card from eBay.

CE

MMB3R16GUACA-GE

I Y027F000 031

Made in TAIWAN

I'm assuming that the line of characters above the "Made in" line like a serial or batch code it there are major differences since I have seen postings with that line of characters changing.
[Focus General] fernie54:
my card experience

Sandisk 16gb Class 2 (from Radio Shack) not stable. Filled up 20GB+ and it worked fine for a week, then it started rebooting and I experience random lockups.

Patriot 16gb Class 4 has been working flawslessly for me for a little mor than two weeks with 20GB+ worth of music, pics, apps, etc.
[Focus General] jaraya13:
Dude I am going to start crying... The eBay seller just shipped the Samsung 16GB class 2 card... :(
[Focus General] fernie54:
Sorry, I copied the wrong brand. I meant to say Sandisk 16gb Class 2.
[Focus General] jaraya13:
Thank God!! I am happy again! Regards.:D
[Focus General] jaraya13:
I am sure that the reduced touch response is not due to MicroSD because my Focus has no MicroSD installed and it presents the same problem. Actually this is a pretty old thread subject: http://xdaforums.com/showthread.php?t=847827
[Focus General] smuook:
At about 10gb used on Samsung 16gb with no resets after about 2 weeks. Great so far, will post any problems.
[Focus General] PaullikesWINMO:
Where/how did you order ?
[Focus General] SuperSport:
Actually, that was my point. I've noticed the problems with and without the SD Card inserted. Yep, that thread is exactly what I'm experiencing, except that I get the problem on one of my wooden desks also. Strange, but like I said, that "should" be something that software can fix. Hopefully...
[Focus General] StriderNo9:
Same here. My Samsung 16GB card is working great right now, a few issues with the phone but I dont think its card based.
[Focus General] JamesAllen:
ATT Site

http://www.wireless.att.com/cell-ph...=samsung&q_model=prod4900501#fbid=mP1gbdgAoxk

I hope this link works. On the ATT site, if you search for accessories, then select the Samsung Focus, ATT lists this SanDisk 16GB Class 2 microsdhc card for the Focus. I purchased this card from Amazon and it is working fine.
[Focus General] tripntx:
Still using Patriot 16 GB class 4 since Thanksgiving weekend. Currently total storage is 22.12 GB and Available is 6.53 GB. Haven't had any problems yet.
[Focus General] FishFaceMcGee:
How long have you been using it?
[Focus General] StriderNo9:
I've used two separate Sandisk 16GB Class 2 cards and both locked up badly after 10 GBs of data.
[Focus General] mfaist:
Samsung card frrom Ebay

Has anyone that ordered a Samsung card on ebay from nikolai9770 recieved their card? I haven't recieved mine and think it is a USPS issue not a seller issue, but thought I would check here since I know a few of you have ordered.
[Focus General] FishFaceMcGee:
I haven't ordered one, but I'm willing to bet it's a USPS issue. It took about a week and a half for my GameFly games to get shipped back when it's usually 3 days.
[Focus General] JamesAllen:
About a week

I have been using this card for about a week now with no issues.
[Focus General] vedichymn:
I got mine through that seller, it shipped in a timely fashion, just got held up by the holidays.
[Focus General] PaullikesWINMO:
So going by what everyone is saying about the microSD card Class , it's better to be low than high (better to get class 2 than class 6) would this be a good deal?

http://www.amazon.com/SanDisk-32GB-...JYCY/ref=sr_1_1?ie=UTF8&qid=1294188018&sr=8-1

Is anyone using it successfully for any length of time ?
[Focus General] FL5:
I didn't order a Samsung card from him, but I did get my Sandisk 16c4 from him. I ordered it on a Friday night at 11pm, he shipped it Saturday, I got it on Monday. Granted, it only had to go from Florida to Louisiana, but I was still mightily impressed.
[Focus General] jaraya13:
I am pretty sure everyone is going to advice not to buy any 32GB card for the moment.

I went for the safe one and bought a Samsung Class 2 16GB from the ebay seller.
[Focus General] ITDRAGON:
you should research your part numbers before post information.. that's a class 2 part number too. last 4 digits are for diffrent accessories that come with the cards.. what accessories I don't know. some come with readers or SD adapters. etc etc.
[Focus General] ITDRAGON:
Why? I have a perfectly working 32Gb card. The thing is if you lucky enough to find a seller that has the class 4's instead of class 2's
[Focus General] FishFaceMcGee:
So far you're the only person to have a stable 32GB card. That makes you the exception, rather than the rule.
[Focus General] mattbeau:
poloroid branded pny 16gb class2

You can add to the list of unstable sd cards

I had a 16gb pny class 2 branded with Polaroid and it worked for a few days but this evening I've started to have some massive slowdowns and apps stopped launching. Reseting the phone didn't help so I pulled it and went back to stock 8 gb everything is short Smooth again.

Guess I'll wait till I find a good one.
[Focus General] StriderNo9:
I ordered two of them from him, super fast shipping on both.
[Focus General] MKohlman:
Lexar 32Gb Class 10 introduced:

So, anybody seen this yet?

http://www.engadget.com/2011/01/05/lexar-unveils-32gb-class-10-microsdhc-card-quick-fingered-andro/

- MEK
[Focus General] FishFaceMcGee:
I saw it earlier, but as anyone who has read this thread knows: class speed means nothing.
[Focus General] redoxy:
This is to say that i added a patriot 16G class 4 to my focus (rogers Canada) and loaded movies and music (about 10G free space left) and so far its been working without any issues. I have intentionally done several soft resets just to confirm it is stable and sure enough it is.:)
[Focus General] smuook:
This is the one I have. All I can say is that it's purring like a kitten after two weeks. No restarts, no slow downs, no changes in performance except I have 21.92GB total storage and currently 11.79GB available.

http://cgi.ebay.com/16-GIG-SAMSUNG-...gital_Camera_Memory_Cards&hash=item3f05a22c45
[Focus General] jaraya13:
"Purring like a kitten", hahahaha LOL XD!!

This is great info, because I just bought that same Samsung Card. It will reach me in 2 days!
[Focus General] alpine3823:
Total Storage 38.43

I have been running this since Nov 2010 8GB no board and 32GB micro SD

from China

It needs to be 32GB SD Micro memory Card with

CE ROHS
[Focus General] PaullikesWINMO:
I like the 32GB for sure. Maybe more announcements coming from CES. Might be worth waiting until Friday until all the announcement are done.

Again I'll ask (like I haven't already), if anyone is already using a 32GB microSD successfully with no issues, please post the Manufactures name, and the Manufacturers part# and where it was bought from.

Thanks in advance !
[Focus General] arrrgh:
I have been running SanDisk 32GB card for about a day now, no problems yet (as far as I can tell, see below). The card is one of their "mobile" cards that doesn't say class on the packaging.

I had the card laying about when I got Focus so I decided to give it a go. A little shortsightedly I put the card in before starting the phone for the first time so I can't really tell if it's working 100%. Any easy way to test performance or steps to expose reduced performance/other possible issues?
[Focus General] FishFaceMcGee:
Well, you may want to go to the about phone section in the settings because the phone may not be using the card unless you reformat it.
[Focus General] arrrgh:
Thanks, yeah, it's using it.

From the earlier posts I saw some ppl started having issues when they loaded enough data on the card so I synced about 15GB music and then installed a bunch of apps and games on it.

I guess I just have to wait and see if it starts restarting in the next few days.
[Focus General] FishFaceMcGee:
Yeah the easiest way to find out if the card's good or bad is to make sure you have more than 8GB on the phone. I ended up having around 20-ish GB and it crashed within days of me getting it.
[Focus General] MKohlman:
I went ahead and placed an order; Amazon is quoting 4-6 weeks lead time so it may be a while but when it comes it I'll do a comparison test against the Sandisk 32GB I've been using and see which work better.

- MEK
[Focus General] ITDRAGON:
Sandisk prints the class right on the card, you should be able to see it though the packaging before opening it.
[Focus General] yobyeknom:
I just ordered the 16GB Class 2 from nikolai9770 on Ebay for $23.99.

I was told the information on the back of the card was as follows:

ce

mm83r16guaca-ge

s y jg12212 032

made in korea or taiwan

It seems like Supersport and some others have been having good luck with this card.

Here's hoping!

I'm loving my Win Phone 7 Focus even though it seems to be eating my 200mb data during the day while I'm supposed to be connected to Wifi.

- Yobyeknom
[Focus General] StriderNo9:
Good luck, I ordered from him also, so far my phone works great.
[Focus General] yobyeknom:
StriderNo9 - It looks like you've been using the 16GB Samsung card since about December 23rd. Is that correct? That's two weeks. You've had no problems?

I'm assuming you've got it loaded up.

Great news if so.

Thanks.
[Focus General] blakkheartt12:
Hey I use a 16GB Sandisk class 2, and I noticed the rebooting of the phone, data loss etc, but I notice it only does it when its unplugged. When its plugged it does just fine. Has anyone had theirs reboot when it was plugged? If not maybe its a power issue?
[Focus General] JamesAllen:
What data?

What data did you lose?
[Focus General] FishFaceMcGee:
The "data loss" he's talking about (if he's experiencing the same issue most people have) is when it reboots, it loses access to all storage, saying it only has 15 MB free. Usually, this is fixed with a restart, but is a good sign that the microSD card is bad.
[Focus General] blakkheartt12:
Yeah with a reset it all comes back.
[Focus General] RGBell:
SanDisk 32GB (SDSDQ-032g-A11M)

I installed a SanDisk 32GB (SDSDQ-032g-A11M) card in my Focus last night. It currently has 13.87 GB used and 22.5 GB free, with mixture of pictures, videos, music and apps. It has been working flawlessly. I have rebooted it several times with no data loss. I have seen no performance degradation issues at all. No spontaneous reboots. It has been running for about 24 hours with absolutely no problems. Let's hope it stays that way!
[Focus General] bennyj71:
I thought you couldn't reboot WP7 will it was plugges in? Read an article saying that was by design. Anyway, I can't do it will mine.
[Focus General] PaullikesWINMO:
Thanks for posting the part# !!! And yes let us know how stable it is. I have been considering this one as well and will likely purchase once CES is over since there could be some announcements during this show.
[Focus General] Lasabar:
Lexar 16Gb Class 6... Not working... After Reset all data is gone, tried twice... Grrrr
[Focus General] XeNoMoRpH1030:
He just got it today, so I'll ask him tomorrow and see how it is. There does seem to be a pattern though on what works and doesn't.
[Focus General] joerao:
Procedure for recovering a "locked" SD Card after inserted in WP7

Has anyone successfully reclaimed a MicroSD card that they removed from their WP7 device. My understanding is that Windows' Disk Management is unable to do this.

Will diskpart or gparted?
[Focus General] rexian:
This thread needs to be stickied until MS / Samsung fixes the issues with other cards.
[Focus General] marcoma:
Using the 32GB SanDisk class 2 card... had initially the 15MB error but reformated and good for +24hrs now. 12GB in use so I'm beyond the internal memory.

One thing I noticed was a sudden reset / reboot of the phone 20min ago - no data loss and I probably wouldn't have noticed if I didn't see the 'boot-logo' pop up while look at it. Has anyone else noticed this? One of the 'wrong microSD' card symptoms?
[Focus General] ryotgz:
I've had no trouble reformatting mine in Windows 7. It just says the card needs to be formatted.
[Focus General] foxbat121:
MicroCenter house brand 16GB class 2 card works fine.

Reset/format using the Settings->About->Reset phone.

Soft reset couple times and no problem what so ever.
[Focus General] TheMarkness:
Friend with the 32gb Sandisk class 2 card is seeing hit or miss a bunch today. He went to answer my call to get lunch today and noticed it was just my phone number nothing else. After getting off the phone he noticed everything was defaulted again with no apps or anything, did a restart on the phone and wala everything is there again. Very strange he's going to take the card out and return it and go sans card until there is a true fix and explanation, too finicky.
[Focus General] marcoma:
This is exactly the behavior I'm seeing with the (the same) card... it works fine for about a day and all off a sudden there are reboots or default settings - off/on cycle and everything is fine again. Took out the card and am living with 8GB onboard for now as this is just a bit too frustrating...
[Focus General] ganks:
Sandisk 16GB Class 2 working

I also picked up a Focus on launch morning, had the ATT rep install a 16GB Class 2 Sandisk card. Took it home and loaded tons of apps on it. Then I noticed it only had 8GB of memory.

I found the manual, did a hard reset and it recognized 22 or so GBs.

No problems so far, except occassionally the marketplace is laggy. Other than that no issues.
[Focus General] dgetz:
32Gb Sandisk

This thread has had me on edge to perform an upgrade, but I went ahead and did it anyway. I just sucked it up and did a hard reset to format the card and have not had any issues. Even after powering the phone on and off several times. I first checked the SD card with HD Tune and this other program I can't remember the name of right now. It tests your SD card by filling it up with 2Mb files and then reading them back, the purpose being to make sure your card is the size you paid for and the side benefit getting read and write speeds.

Anyway I got the following properties for my card, a Sandisk 32GB Class 2 from Amazon:

HDTune

Read Avg: 10.5 MB/s

Random Access: 1.05 ms

Other Program

Read Avg 12.7 MB/s

Write Avg 5.1 MB/s

So per the definition of SD card classes I actually got a Class 4 device. Yay! Sandisk is known to under rate their cards or perhaps this will slow down a bit like an SSD drive.

Anyway it works. The phone shows a total storage of 36.9 GB, no hiccups and no data loss since the install and initial reset.

I understand the benefit of removable storage as 'power user,' but I also see MS side that the average user probably won't be swapping these cards out. Micro SD are fragile very tiny friggin little things and i don't think the back of my phone can stand be popped on and off a bunch to boot. For most, if they ever upgrade, it would probably be a one time thing in the lifetime of the phone.

All that being said, MS needs a way to have the phone either seamlessly absorb added storage space or backup to the 'cloud' and restore your stuff by itself. I can't figure out how to restore one of the apps i bought pre-SD card just to try the whole experience. I don't feel i should pay for the thing again. Any suggestions?
[Focus General] joerao:
Are you absolutely sure the card was locked by WP7 before you were asked to format? I've been given conflicting information that states that WP7 locks the card with 128bit key using the spec described here:

http://www.sdcard.org/developers/te...lified_Specification_Ver3.01_Final_100518.pdf

I believe the SD org's format tool with the erase option will remove it. I don't believe Window's partition tools support SD org's lock commands.

http://www.sdcard.org/consumers/formatter/SD_Formatter_Manual_English.pdf

Can anyone confirm this (I don't have a phone to try this on yet)?
[Focus General] dgetz:
Reloading Apps after Hard Reset

Maybe i missed this somewhere in this thread or elsewhere, but I answered my own question above. If you have bought an app, when you go to click buy again, it doesn't charge you. It just says something to the affect, "you have already bought this app, would you like to redownload?" Where is the palm slap to forehead smiley? :)

MS if you ever read this, I would still like a spot in the store that shows all of the apps I have bought/DL for free and their install status on my phone. Include an option to install/uninstall/rate these apps from there and then another option to 'delist' an uninstalled app that I no longer am interested in. Possibly an overall 'restore all to phone' would be nice too. I'll put this on my xmas list. Thank you.
[Focus General] burnblue:
How? How do I reformat? The phone won't return to factory!