yashsingh1/xdaforums huggingface dataset:
[Focus General] ashwinpadmanaban:
Bought memory card

Hi,

Further to my previous comment in this thread, I have bought a 16 GB Samsung Class 6 memory card.

But the problem I face is that - I inserted it in my Focus and formatted it. Once it gets booted up after the format, it said storage card not working or incompatible.

I saw in this page http://xdaforums.com/wiki/index.php?title=Samsung_Focus , that samsung 16 GB class 6 works. And so i went bought this. But now after this format, I'm unable to even format it back in PC or in other mobile phones to make it work in my other Android phone.

Kindly help me out. Tell me some solution to make it work in my focus itself, if not atleast to make it work in my Android.

Thank you in advance.
[Focus General] Testware:
Well, I remember reading somewhere that it's possible to format these memory cards by sticking it into a Nokia phone. Find a Nokia phone (Symbian, not Windows Phone) and try formatting it in that. Or try to format it using a digital camera's low level format option.
[Focus General] aussiejim:
64GB Goodness!

Thought I'd try my luck with a 64GB Sandisk Ultra microSD card, and Bingo! Worked a charm! It's been rock solid for last 2 days, running v3.05 Clean ROM on v1.3 Focus.

Card details: SanDisk 64Gb Ultra microSDXC UHS-I card, IDSIUMS64GB.

[Won't let me post image of About screen...]
[Focus General] jasonvelocity:
Would you say there are any performance gains?
[Focus General] aussiejim:
No, just space gains. No performance hit, though.
[Focus General] chromiumblue:
64GB SanDisk micro SDXC works in my 1.3 Focus with 7.8

SDXC Card (Class 10):

Product Name:	SDSU64G

Manufacturer ID:	0x03

Revision:	8.0

Manufacturing Date:	2012-09

Specification Version:	3.0

Capacity:	63.86 GB (63,864,569,856 bytes)
[Focus General] drkelfdrizzt:
Patriot add on

I got Patriot Memory micro sdhc 16gb class 10 working on mine.
[Focus General] icnatejackson:
does the 32GB card *really* work?

Even though my Kingston 32GB class4 chip is installed, and formated, and my phone still technically functions... I'm not ready to say it "works."

You can't really sync more than 8-9 GB of data to the phone before Zune starts to take MINUTES to sync each song. Once you've hit that, the phone starts to respond sluggish. Installing apps takes minutes to complete, not seconds. Navigating from screen to screen usually results in a second or so delay.

I'm considering pulling the card out and hard-resetting until MS/ATT/Samsung get their acts together.
[Focus General] naplesbill:
My SD card is, and has been, working 100% reliably since Monday. I'm not sure what makes you think there are NO cards doing so. I have reset a number of times with no issues at all. No lag, no data loss, no performance degradation, 100% working.
[Focus General] cubanaso:
Just wanted to share my experience with this micro sd card situation. I went ahead and popped in a 4gb sd card (sandisk, dont know the class) and it worked well right off the bat (after soft resets and all). The next day I started to notice some lag on my phone and went ahead and rebooted and it was fine. I also had an issue with the phone properly reading the battery life (see thread on "battery issues") which was fixed with a soft reset. Well, yesterday my phone completely froze on me and would not turn back on after a reboot. I went ahead and removed the micro sd and performed a hard reset. After about 20 mins the phone started up but was only reading 15mb of total memory. I went ahead and performed two more hard resets and same issue. Long story short I had to return my phone and get a new one. Dont know if this was an issue brought upon by the incapatability of the sd card or not but I will be waiting for the certified cards to come out before I try adding memory again.
[Focus General] jbastian:
My experience

Ran without an extra microSd card for about a week before I decided to put my card from my older fuze into the new focus.

During my first week without a card, I had to soft reset (reboot) twice due to app hangs and marketplace crashes.

I'd say some of these issues are just rev 1 software glitches.

I installed my Sandisk Class 2 8GB. Running a couple days without (new) issues. After soft resets my data is still there. I'm only using 4 GB so far so far though.

I'll post more if anything changes.
[Focus General] XATAGuy:
Naplesbill,

Could you please let us know which card you're using, and how much total storage you've used/what you have left? This let's us determine if you've really got any data actually stored on the card.

Thanks in advance!
[Focus General] Nailz911:
32GB SanDisk Class

Picked up my Focus and this memory card from ATT on Thursday afternoon. Worked perfect for all of Friday, Saturday while out it started rebooting itself and losing all data as though it had reset itself.

I ended up taking out the card and trying to get it back to square one. Multiple hard resets from both the setting menu and using the down_vol-camera-power button would still show that there were approximately 15 GB on the phone as well as making it so my Win 7 machine and Zune would not recognize the phone when usb attached at all.

I then put the 32 GB card back in for the hell of it and all data was there again, all music, movies, etc. I was using about 22GB and the phone showed that it has 36.90 GB of total storage....

My question is, is there a way to get this thing reset so it goes back to showing 8GB if I remove the card? All hard resets were not successfully for me, so I am wondering if I have to return the phone or try something else? I am also considering going and picking up a known working 16GB card and swapping it out to see if that would work as well.

I really don't want to screw around with this too much more as it is a work phone, just trying to come up with other ideas.

Thanks!
[Focus General] tanders04:
Just wanted to add that the Lexar 8GB Class 6 also loses data after a soft reset.
[Focus General] rruffman:
the issues only start happening when you have more than 8 gb of data loaded to your phone like 10 or more used where it is clear you are using the sd card... as i had no problems til this time. so if you are at this level of data on your phone and things still work then you are in the clear..
[Focus General] rruffman:
I had that same problem dd several restore for about menu it never worked then finally after several attempts that way tried the vol dn, cam, +pwr and it worked.. so you may just have to keep trying the vol dn, cam, pwr way a few time it will finnaly to cach

f saw this in another thread this will do a full restore on the phone

Method 1: Dial ##634# from the phone pad press the call button when the diagnostic screen appears type *2767*3855# to preform a full restore.
[Focus General] jeffgeno:
I loaded it up with 23GB worth of music yesterday morning and some more apps today. There was no slowdown or anything until 10 minutes ago when the phone made a new text message sound and rebooted itself. It came back up perfectly and everything is just as fast as before, but I'm starting to get concerned. Let's hope that was a one time freak happening.
[Focus General] naplesbill:
This has already been stated previously in this thread. I have a Centon 8GB Class 6 card. I have 6.5 gigs of space left available. I have reset, powered off, and pulled the battery. Absolutely no issues.
[Focus General] clmbngbkng:
I installed a Kingston class 4 32 GB card and have loaded up the phone with 11 GB of music and it then the Zune software slowed down and would take minutes to sync a song (if it even would finish). All the data has seemed to stay on the device without it showing up as 15 Mb but the device does seem to be laggy.

I think I am going to pull the card 'til we hear more from Microsoft.
[Focus General] Impunity_:
hope this helps (from Slashdot)

You have to dig further into the links in the article from engadget to find out what is really happening. Apparently the Windows Phone 7 devices are stressing the SD cards in a manner which is not in-spec for a normal SD card. This means that a SD card which is perfectly fine by the normal spec might be ruined by the way the Windows Phone 7 OS uses the card.

This means that you will need a SD card which is certified under more stringent requirements in order to not be destroyed by the Windows Phone 7 OS.

On top of that the OS also completely reformats the card so that it is a "permanent" part of the device. It probably sets up special space for swap space and other OS-specific data structures so that they can be accessed quickly and easily by the OS but this results in the card not having a normal disk layout that other devices can read using default software.

so this is nothing to do with read/write speeds its mostly caused by the DRM feature of the SD cards, which is an unknown quantity as its a feature taht SD cards rarely use.

i cant link in the reply yet since my account isnt verified but heres the engadget article

www(DOT)engadget.com/2010/11/12/atandt-tells-samsung-focus-customers-not-to-buy-microsd-cards-yet/

and heres a microsoft kb article that explains about the DRM

support(DOT)microsoft.com/kb/2450831

as others have noted, this is likely in an attempt to comply with DRM requirements from Zune pass and/or MS's own app store. if the card were a separate unlocked storage people could easily use it to pirate media and software.
[Focus General] naplesbill:
I installed a 16GB Class 2 PNY card today. I have been running it for several hours and I have loaded 9GB of data on my device. I have rebooted several times and it is still working perfectly, no performance slow-downs or data loss yet. I will post again if anything changes.

Now I just need to work on finding a way to reformat my old Centon 8GB card.
[Focus General] serialtoon:
Kingston 8GB Class 4 card here. So far its been in my phone for about 5 hours and its rocking. Tomorrow will be my first day with full use with my new phone.
[Focus General] Phiresun:
Sandisk 32gb Class 2 Amazon

Just an update on my Focus card experience. So far its been a solid week since I bought my phone and immediately put my card in and upgraded to 36.7gb officially. I currently have 14gb worth of music, podcast/vodcast, videos and picts. I have no bad experience to report as of today. I am really hoping I just got one of the good cards comparing my experience to most in this thread. Will update weekly.
[Focus General] AllTheWay:
I had the same issues with my SandDisk 16GB Class 2 card. My phone would suddenly reboot after getting a phone call or a text. I loaded up about 15GB worth of music. Transfers speed from Zune to the phone were considerably slower. I pulled the card and hard reset the phone. It's running a lot smoother and have not had any issues since.

Same issues I was having as well. I too am going to wait from the official word from M$ headquarters.
[Focus General] rhart20:
First Certified Card

According to tech support the Sandisk 8gb Class 2 has been certified. See the link select the "Samsung Focus Storage" question. I saw this at pocketnow.com.

www(dot)samsung.com/us/support/allQuestion.do?prd_mdl_name=SGH-I917&moduleurl=sems/jsp/iframeExport/supportAllQuestion.jsp#

pocketnow link

pocketnow(dot)com/windows-phone/sandisk-8gb-class-2-microsd-card-first-wp7-certified
[Focus General] RustyGrom:
That post also says the Focus has 16GB of internal storage...
[Focus General] XATAGuy:
I found that this is stated on page 10 of the Focus manual:

"Many commercially available retail microSD cards are not

approved for use in Windows Phone 7. Use of unapproved cards

may cause performance degradation or device instability

including unexpected reset and loss of user data. A microSD card

class is not an indication of meeting Windows Phone 7

requirements. Approved cards can be obtained from the

manufacturer or Mobile Operator. (SanDisk 8GB class 2 microSD

card has been certified.)"

Raise your hand if you haven't opened the manual. Yes you - that's right - put your hand up...........
[Focus General] MarcBate:
Dane-Elec 16GB Class 2 working

I've had no problems in the 6 days I've had my Dane-Elec DNL 16GB Class 2 (DA-2IN1-16G-R) in my phone. I've transferred over 10GB of music over without problems.

When I pushed whatever button combination it was to format the card, I did lose the few settings I had configured, but I think that is by design, right?
[Focus General] pgsxdjp:
Bought a MicroCenter 16GB Micro SD in Houston.

Did the Volume Down + Camera + Power, proceeded to format.

When the phone loaded, first thing I did was go to settings to check how much memory. It said total was 15.37 MB (not a typo). From there I was able to add my Live account but not Google or Yahoo. I tried to load Marketplace and it would load, then go back to the home screen automatically.

I restarted my phone and all my previous settings were restored before the format described above (apps installed, mail/contacts/calendar synced)

Did I do something wrong? Has anyone experienced this, regardless of memory card?
[Focus General] greggsauce:
A data class 6 8gb resets like the others
[Focus General] TomH123:
I have a Lexar 16GB class 2 card that's been working great. I've copied about 15GB of music about a week ago and haven't had any issues. I've done several soft reboots, removed the battery and everything is working good.
[Focus General] JohnPalmer:
Sandisk 32GB Class 2

I bought the Samsung Focus on launch morning. I picked up a 32GB sandisk class 2 card at the AT&T store. The AT&T rep looked at the quickstart manual but did not read the directions, instead he looked at the diagram, installed the SD card and turned the phone on. I went through the setup installation and felt satisfied. When I got to the office, I looked at settings on "about" and saw that the phone was not reading the additional storage, only the onboard 8GB. I pressed reset from the about tab and the phone reset. I had to go through the setup installation again. I checked the setting tab and I had total storage of 36.90GB. This was Monday, November 8, 2010, noon EST. Since then, I have loaded about 6GB of music and about 1.5 GB of applications and other files. Right now, my about tab shows available storage of 29.03GB, which tells me that the phone is using the SD card memory since the OS files, my music and other misc. files have exceeded the initial 8GB onboard storage.

The phone has performed flawlessly. I came here because when I was playing Need for Speed, my screen shut off and when I turned the phone back on it resumed the game. I thought maybe this was related to the SD card issue. However, I discovered that the reason my phone shut off was because I was using the Bodyglove case which fits very snug on the device. The way I held the phone to play the game (landscape mode), I must have pressed the part of the case that covers the power button and the phone shut off. I have played the game Need for Speed (I actually finished the game) while avoiding touching the part near the power button and did not experience anymore shutoffs.

I will install more music files tomorrow and report back. I may install another 2GB of music. I feel the pain of the consumers whose phones did not function with the memory card they purchased. These cards are not cheap, especially the 32GB one. I have really tested this phone and thus far it has not had any hiccups, except maybe it took a while to download games from the marketplace (on wifi). Other than that, I have no complaints. I will report any problems if I experience them.

At this point, I hope MS issues a patch that will address this problem while not disrupting the performance of people's phones that have not experienced any problems with the Sandisk 32GB class 2 card.
[Focus General] hyperzulu:
Recovered my SD card after WP7

I purchased the Kingston 16GB Class 4 sd card from Frys. Still loading files on it to test stability, but so far it's been stable on all accounts.

For anyone curious into looking into why WP7 kills the SD card after inserting it into the phone and resetting, I popped an 8GB card that came with my Nokia 5800xm and reset the phone. It was all good. I tried to check the card on my PC and like most other people, I noticed the card was not recognized. I then popped it into my Nokia phone and it immediately told me that I needed to enter the password for the memory card. Interesting.... It looks like WP7 password protects the card. Unfortunately, I couldn't figure out what the password was. It wasn't simply 0000 or 1234, etc. I tried a few things. I then loaded FileBrowser, one of the apps in the Nokia suite, and I was able to format the card making it readable on my PC again.

Maybe if someone has the smarts to look into it, it could solve some riddles. If this has been explained before elsewhere, forgive me. I just felt like sharing my success with that :P
[Focus General] ricky119:
I hope people who post their experience on the various SD card here can also put the test read/write speed for reference

As we all know, the class specification of a card is not accurate at all: a Sandisk Class 2 card may even faster than a Kingstom Class 10 card, so the detail read/write speed should be more accurate to assess the performance of an SD card.

testing tool:

1. ATTO Disk Benchmark

2. HDTunePro

update my SD card speed here:

Sandisk Mobile Ultra Class4 16G

19M/16M

Although my focus is still on the way, expansys.com is super slow here, but i think this information will be useful for others to reference, and i will post my test result within the phone when i get my focus
[Focus General] smuook:
There is no WP7 software patch for this. This is a hardware issue. A lot of ignorant blogs are pointing the finger at Microsoft on this issue. Microsoft wanting to ensure the card works properly is a good thing. This is Samsung and AT&T's fault. The idea is actually a good one... if I'm using my phone only for business and don't do gaming and media, I can go with the standard 8GB and save money. If I'm doing what you are doing... I buy a certified card to upgrade the memory (like upgrading a hard drive at time of purchase). I don't understand why AT&T and Samsung couldn't wait a few more weeks for the new WP7 certified cards to launch the focus? The LG quantum didn't appear on launch day...
[Focus General] kdes12:
certified sd cards appearing on sandisk website

lnot sure if it has been mentioned yet, but looky here...

http : / / wmpoweruser.com/certified-windows-phone-7-microsd-cards-appear/
[Focus General] XATAGuy:
Does Sandisk make more than one 32G class 2 SD card? I don’t understand how they can claim to be compatible with the Focus (which they are doing on their web site) when we appear to have solid evidence within this thread indicating that this card is less than completely stable in the Focus.

Am I missing something?

http://pct1.sandisk.com/ProductList.aspx?DeviceID=16740
[Focus General] wsantiagow:
Already posted
[Focus General] jeffgeno:
SanDisk 32GB Class 4 here. I had one random reboot yesterday and another two already today, once with all the setting cleared (that one was solved by another reboot). I think we can move this one into the unstable bucket.

It seems like there isn't any 32GB card that's completely reliable. Has anyone used a 16GB card without any errors? I could drop down to one of those, but using an 8GB one would just be way too restrictive.
[Focus General] psills:
It looks like the Sandisk MicroSDHC cards work! Sandisk has verified them.

There is a good chance that the ones with Sandisk cards NOT WORKING are using Chinese knock-offs. There are a lot of them out there, so be careful.

A good example is the user on this forum claiming he received a Class 4 card from Sandisk - Sandisk does not make a Class 4 32gb microSDHC card - it is a FAKE!

pct1(dot)sandisk.com/ProductList.aspx?DeviceID=16740
[Focus General] psills:
Can we update the list in Post #1 with part numbers and suppliers?

This should eliminate false information based upon fake cards in the market - there are a lot of them.
[Focus General] emjee87:
If people actually have/want to provide that information, I will update it as such.

I certainly hope manufacturers take to testing and certifying their products for WP7 and provide clear labels saying as such. Despite the information gathered, I'm still hesitant to buy a card and having to worry about it getting burned out in a few weeks because of the apparently strenuous nature of the WP7 format.

That said, the 32GB card from SanDisk that is certified on their site is pretty pricey at $200...I'm at work, but when I get a chance, I'll have to check if it happens to be the same as the $110 one listed on Newegg.
[Focus General] RustyGrom:
It is. At least it's the same model/part number. Still hesitant to buy with people here reporting that it doesn't work. That and it doesn't come with an adapter of any form... ugh. And Newegg doesn't sell just a MicroSD adapter by itself.
[Focus General] emjee87:
Thanks for the update, Rusty. I am actually less confident in buying one now as several people posted their issues with said card and now SanDisk is calling the very same card certified. Maybe I'll flip a coin to see if I buy it...
[Focus General] jeffgeno:
If you order a class 2 from NewEgg for $115, they'll send you a class 4. It has regular retail packaging and inserts from SanDisk offering their software that can sync music to your phone. It has serial numbers and everything on it. It could be a fake, but it looks pretty real to me.
[Focus General] RustyGrom:
Sandisk doesn't make a class 4 card. If Newegg is shipping something that does not look exactly like this I would return it and demand that they send you a new one that does.
[Focus General] enjoythemusic:
Deleted my post
[Focus General] jeffgeno:
I sent an email to SanDisk about it. I'll let everyone know what they say. But regardless, even people who have used the 32GB class 2 have had the exact same issues. It doesn't seem like there's a consistently reliable 32GB card.
[Focus General] emjee87:
I think people are getting good results with the Kingston 32GB Class 4.
[Focus General] jeffgeno:
Everyone I've read about has Zune sync slow to a crawl once they hit the card. Then the instability problems kick in. Almost every card works great if you have less than 8GB of stuff on there.
[Focus General] chsoriano:
I have a SanDisk 32GB Class 2 (SDSDQ-032G-A11M) purchased from Amazon... been using it just over a week now. It has rebooted once to default (15MB shows up as available storage), but I removed the battery and turned it back on and everything was fine.

I've also had a couple of random reboots and a couple of application crashes (which a reboot fixes), but besides that, Zune sync performance, app launching speed, etc. has been fine.

However, I am still thinking about picking up that Kingston 32GB Class 4 for kicks, just to see if it helps.
[Focus General] Nailz911:
I'm starting to think the issues I have had with my own SanDisk 32GB class 2 have been my own fault. I don't honestly remember at this point doing the hard reset to get the card set up as I was so anxious to get things moving along. After I had my first issue with random resets and losing my data, I did the hard reset multiple times, with and without the card in, my data came back and has been fine since (this was Saturday). I have had the phone reboot itself but it's come back up each time, and I honestly think that has just been the phone itself and its early code, would be curious to hear how what folks have seen without cards.

This phone got the ultimate test last night, we had a power outage due to high winds, and my battery lost all charge. This morning power was back up, I re-fired up my PC and plugged the Focus in to recharge, when it finally got enough juice to the battery, it powered itself back up with all of my data.

Just gets me to thinking that the problems with these cards (the SanDisk 32GB in particular) may be due to user error on some part, as was the case with me. I hate to admit it being a technical guy and working in the storage industry, just shows we can all get excited and forget about things when it comes to our own toys....