yashsingh1/xdaforums huggingface dataset:
[Focus General] kenikh:
I noticed some lag increase after adding my card to the previous beta release. After going to 7712, the lag is gone, the phone flies and I DID NOT get a card warning. The fact that you did is a fascinating development. I wonder if the warning is heuristically driven or is just a lookup against a compatibility table???
[Focus General] neurodave:
I am running a SanDisk 32GB mSD on my Focus with no issues. It ran fine on NoDo and is currently running just as good on Mango 7712.
[Focus General] wm.andrew.wilson:
I would guess it is heuristic, as I was able to "trick" the warning away by resetting multiple times. One time out of three or four it would let me boot up into the OS without trouble. It is an interesting development for sure, and something that should have been in place since day 1 in my opinion.
[Focus General] PaullikesWINMO:
I think this one should be closed. If anyone is still having trouble after Nodo and it's not an SD card that is listed here as working, then they should buy a card that is listed and proven to work. The whole situation should not have been this bad to start with, but now when we buy a new phone, think twice about buying Samsung device !
[Focus General] KG363:
Any word on the Sandisk SDHC Class 4 32GB?

If not, what 32GB ones work?

XDA isn't letting me post a URL, but the card's # is SDSDQ-032G-A11M, if that matters
[Focus General] kenikh:
Minw has been working perfectly for over a month - buy with little concern, especially if on 7712. It is flawless.
[Focus General] dhan911:
Where did you get your card from (no url needed, just store name if you can)? I am looking at buying a SDSDQ-032G-A11M (Sandisk 32GB) from newegg/amazon and just want to check if you had any problems with it.

How much data did you sync?

For some reason, newegg shows a Class2 photo but amazon shows Class 4.
[Focus General] kenikh:
I bought from Amazon and th edirect link is in a post above. I have loadded the phone within about 5GB of full and amm regularly dumping and replacing content. If there's a stress test for these cards, I've done them all. It works G R E A T.
[Focus General] dhan911:
thanks! I just bought the card directly from amazon.com (not sure I trust the "partner" stores). I can finally load all my music on Focus. :)
[Focus General] dhan911:
I haven't had any success with Sandisk 32GB class4 bought from Amazon. It's retail packaging directly from Amazon. The phone fails to sync even some songs, it starts and then aborts with this error,

Here is what I did, I have Mango 7712

1. Put in card

2. Restarted and then reset from Settings > About > Reset

3. After reset and setting up the phone, I see 36.90GB total, 36.58GB available.

4. Connect and sync with Zune ("All music")

5. Sync starts and aborts the next second.

Scratch that. After a few resets, I ended up using a different USB port on my PC and it started syncing just fine. :) I guess problem was with the USB port and not the card. :)
[Focus General] Maric:
I bought this:

SanDisk 32GB MicroSDHC Card (SDSDQ-032G-A11M, US Retail Package)

http://www.amazon.com/gp/product/B003OA8T92

Sold by: GO-DPS (seller profile)

The format went well however as soon as I get filled the phone above 8GB I noticed that Sync slow substantially. Eventually after the sync my phone would crash and perform a reset. Did this twice.

So should I go ahead and give up on trying to expand my memory? I am willing to get at least 16GB so long as it's reliable. Really bummed about it now working since 8GB is simply just not enough for storage.
[Focus General] markcr:
Out of curiousity, has anyone done a teamrdown on the Samsung Focus? Curious to know if the built in 8GB comes from NAND (like with the Omni 7) or if it is on a MicroSD card (like the Venue Pro, HTC and LG devices).

Since WP7 is spanning the memory across the existing 8GB and the MicroSD, it might have troubles is the characteristics of the memory is very different. If the built in is MicroSD, it might also create the possibility for a 64GB phone (2 x 32GB :-).

One was to help validate if it is a spanning issue would be to see if the phones which only have MicroSD (no NAND) - like the Venue Pro, HTC and LGs I believe - have similar trouble when users swap out the MicroSD cards for higher capacity... There aren't nearly as many folks changing the cards on the other phones though as they aren't easily user accessable.

From reading this thread, Class 2 seems to be having fewer troubles than Class 10 and 32GB (all classes) seems to have more trouble than 8GB or 16GB... The comments on random speed being key seems somewhat odd to me (wouldn't a higher class also typically have a higher random speed? what do PC based speed tests show in this regard? shouldn't an unfragmented write be sequential vs random???)

Notes:

I'm not an engineer (nor do I play one on the internet) - feel free to correct any of my thoughts.

I don't yet have a Samsung Focus (and wouldn't volunteer to do the tear down if I did :-) - I did order a RiData 16GB Class 6 card in anticipation - curious to know if anyone has had any luck with this card
[Focus General] XATAGuy:
Does anyone have any information on when we might expect this issue to be resolved?

Thanks
[Focus General] aaaaa0:
Guys, don't bother holding out for a OS patch. This is a hardware issue with non-compliant / poorly performing micro SD cards, and not fixable through software.

Just wait for the WP7 certified cards to come out. They'll have both the random I/O performance and testing that will ensure they work properly.
[Focus General] songokussm:
Adata 8GB class 6 works perfectly.

Kingston 16gb class 2 did not work.
[Focus General] evnow:
When you say works perfectly, did you test filling up all the memory & install new apps to make sure the apps went to the microsd and then test ?
[Focus General] AllTheWay:
I will test this out and see if I have the same issue. I haven't filled up my phone that much but have not had any issues with my SanDisk 16GB Class 2 card out of my HD2.

I haven't had any problems with the device since using my Sandisk 16GB class 2 card. I used the phone first without the memory card in there and since I have inserted the memory card the device has performed the same way. Haven't notice any memory loss or performance issues with the device.
[Focus General] AllTheWay:
How do you install apps to the microSD card?
[Focus General] smuook:
I'm personally waiting to pull the trigger on the Focus to see how this issue turns out. This is a big selling point for the phone. It might be best to just wait for "Windows Phone 7 Compliant" microsd cards to come out if you are buying a new card.

http://support.microsoft.com/kb/2450831
[Focus General] smuook:
Also from same article above.
[Focus General] AllTheWay:
Note

"In some cases, these performance issues might only be evident after using the phone for some time. For example, if your phone has 8 GB of internal memory and you integrate a non-compliant SD card with the phone, you might notice the performance issues only after the 8 GB of internal memory is filled with applications and media"

I'm guessing this is why some people are having issues and not others. I am testing out my Sandisk one right now to see if I have issues after I go over the 8GB internal memory limit. Will report back.

EDIT: Seconds after I typed this, I was transferring music from my PC to phone and the phone randomly turned off.

Update #2

After loading up over 10GB worth of music I did experience a little bit of lag. It was only for a little bit though and it seems to be running smoother now. I will test it out for the next couple of days and see how it goes.
[Focus General] mind4sale:
Update on Patriot Memory

Update: After a couple days and loading another 3 or 4 GBs of music (totaling almost 12GB), I am noticing some lagging. No data loss or reboots, but there is definitely some degradation in the zune player and marketplace. It's not in any way unusable, but the pauses and lags are noticeable. I might just reset the phone and wait for the certified cards. Hopefully, we'll start seeing some of those soon...
[Focus General] rhart20:
I am running with the Ri-Data 16gb class 6 you are talking about. I noticed issues when I only did "about phone" software reset. The phone would become extremely slow during media transfer and also during loading and unloading of apps. However, I have since done the hardware reset (three button method) and see no major issues. I have about 10 gb available so the micro sd is being used. I noticed the marketplace is sometimes a little slow but I noticed the same thing while i was using the internal memory only (no micro sd).
[Focus General] hyperzulu:
I popped in a no-name 8gb card that came with my Nokia 5800xm phone. Worked solid on that device so I gave it a go after a day of checking the phone out by itself to get a good comparison. I haven't noticed any issues with the phone resetting itself yet and I am still trying to sync lots of data onto it to hit the capacities of the two memory cards.

Despite that, I do notice some hiccups here and there that weren't evident before. The Marketplace felt a little sluggish sometimes with or without the card, but I've noticed IE being a little strange sometimes, such as when I open it, no page is displayed. I thought either IE just wasn't loading or there was a blank tab and the phone wouldn't rotate it to portrait, leaving me unable to see anything (the phone doesn't show IE's controls in landscape mode).

I might run to Fry's and try to purchase another card. I might try the Patriot 16gb class 4. As much as I'd like to have a 32gb card, I don't think I want to chance it. I suppose one could just wait for better, more reliable cards to come out soon and also hope that MS updates the OS to allow better sync-ability of your phone data so hard resets aren't such a chore. But at $35 for a 16gig today, it's not a big deal to upgrade to a bigger card later should MS actually make the latter a reality. I just hate losing my texts. haha Loving the phone so far though. Simple things like how it handles communication from a locked screen is brilliant. Anyway.......

I'll post more data once I check out if Fry's has the card in stock and can test it.
[Focus General] foxbat121:
Update:

I have now synced about 10GB of video and music to the phone and no problem so far.
[Focus General] evnow:
Not directly. You can't. But if you fill up all the flash memory and a mjor portion of the microsd - and then install several apps - chances are some will get installed in the microsd.
[Focus General] FishFaceMcGee:
Just wanted to come back to give more proof that the 32GB Sandisk card is not working properly. It did two restarts on me yesterday (one of them caused a data-loss that was fixed by a power cycle). Then it did a third, except that it hung on the Samsung logo, and by hung I mean it sat there for 40 minutes. I turn it off, turn it back it on to find that it's only seeing 15 MB. I format it, still 15. I try formatting again, still 15. I pull the card and format it, still 15.

Something to note is that I've tried multiple formats/resets and the phone will either not boot (hangs on the Samsung logo) or will boot and only show 15 MB.

I'm unsure as to whether or not the card "bricked" (I put this in quotes since the phone is still technically functional) my Focus or if I just have a defective phone. Either way, I'm going to try to replace it tomorrow.
[Focus General] Nebor:
My A Data 16gb Class 6 from my SE X1a worked ok for a couple days, but then I reset the phone and it was FUBAR. Ordered a Kingston 16gb Class 4 like this thread says... it'll be here Monday.
[Focus General] ricky119:
from the speed test of various video, i believe it should be NAND, but still need confirmation

and also I'm curious to know the internal read/write speed, my Sandisk Class4 16G got 19M/16M read and write, how about the internal one?
[Focus General] mcraine:
I had a Sandisk 16gb class 2 card installed in my Focus at time of purchase on 11/12/2010. I bought the card at the AT&T store. After leaving the store I noticed that the extra memory was not showing. I did a full reset through settings/about. The additional 16gb was there. No problems and I rebooted the phone several times. (powered off and on) Today I loaded enough music to exceed the 8gb internal memory and used about half the 16gb card. No problems and I rebooted the phone several times to see if everything stayed stable. So far so good. I'll update if anything changes.

UPDATE: Today 11/16 the phone reset itself and wiped out all my data. I was having problems with the camera button not waking up the phone and my bluetooth headset sounding awful. Not sure if they are related but I'm thinking they probably are. Going to return exchange the phone today just in case. It's stuck with the 15gb of memory issue many have seen. Looks like I'll wait for the "certified" cards.
[Focus General] psills:
So, at this moment there a NO cards which have been confirmed to work reliably 100% of the time?!?

I must assume that this is because the issue is with read/write speed and not with the throughput speed upon which the Class rating is based. So the cards, even from the same manufacturer and the same product numbers vary widely.

Well, was looking forward to a Windows phone, but am now sitting on the sidelines until this is resolved.
[Focus General] flipkicks:
Does that mean you lost your developer unlock?
[Focus General] 1031982:
Is that card still working for you, and if so how full is it?
[Focus General] dhan911:
I didn't do dev. unlock but just simple Mango update.

I have synced all my music (30+ GB, 4900+ tracks*), few podcasts and some apps (haven't had a chance to download all apps yet). I kept it to sync overnight, I thought it was a bit slow than usual but I have no slow downs or reboots ever since. Phone is as snappy as ever. Podcasts download over the air working fine as well (which will definitely be stored over the card as built in 8GB was already filled for sure.)

Zune shows,

Used= 31.46 GB

Free = 4.90 GB

*I don't know the exact count because I have the don't sync "broken heart" songs checked on.
[Focus General] Maric:
I bought another card:

SanDisk 32GB microSDHC Memory Card (Bulk Package)

http://www.amazon.com/gp/product/B003WGJYCY

Sold by: BlueProton Consulting (seller profile)

Inserted this card which I first formatted on my computer with fat32 quick format(lost my unlock). Then I formatted with Mango RTM 7720 three times since on another forum this supposedly helped.

Currently syncing past the 8GB threshold however, noticed quite a reduction in speed when transferring past this point. The last card in the quote instantly crashed at this point. So will be testing throughout the week then if all goes well, will go through the process of trying to unlock. I use three batteries so I constantly swap out the battery. If this thing works, this will prevent me from either upgrading to a newer Mango phone(unless Nokia comes out with something special).

Here is a reference thread for other people testing out 32 SD cards:

http://forums.wpcentral.com/samsung-focus/178269-3.htm
[Focus General] magicriggs:
PNY 32GB Class 10 works with the focus. did a reset and everything.
[Focus General] witch1:
Sandisk 16 gig, class 4 seems to be working ok. Not acting wonky or slow.
[Focus General] drpratik:
hi all,

Today i got my samsung focus phone and i did manage to get sandisk 4GB class 4 card working without much fuss.

phone is running nodo update.

thanks .
[Focus General] Strider88:
When I unlocked my Focus, I installed a Hebrew keyboard (replaced the Spanish one).

If I insert a new SD card, will it change my Hebrew keyboard to Spanish again?

Thanks!
[Focus General] jeremyshaw:
I recently installed a C4 Patriot 8GB. No issues here, so far :)

But I did just get the phone, so I did a hard reset after I inserted the card :p
[Focus General] clmbngbkng:
Any update?
[Focus General] Aaron McCarthy:
So, Ive read through this thread as much as I could :P Im getting that by inserting in the SD card you'll end up having to format your phone. I'm running Mango and passed on my unlock from Nodo... Does this mean that if I insert a sd card at this point not only will I have to format but I'll loose my unlock and all my side loaded apps? Its a pretty simple question I know and probably has been asked a few times (yes I did do a search and nothing came up with hopefully don't have to downgrade, install sd card, re-unlock, reinstall apps and then upgrade to mango although I'm getting the impression that is in fact the case.) Was just wondering if anyone has tried this with Mango unlocked yet.

Basically... after putting in the sd card and doing a hard reset while in mango will I still have the provxml folder in the root and be able to unlock via the diagnosis or will the hard reset wipe the root folder clean too?

Thanks!
[Focus General] EnderPsp:
The card is part of the OS now, so changing the card means you have to start from scratch, with a fresh 7004 ROM, if you want to have the phone unlocked.

So: no, you will lose the unlock and after the format the OS will be the last one you updated to (Mango).
[Focus General] bhaskar1590:
can anyone confirm that transcend 32 gb class 4 memory card is working on samsung focus!
[Focus General] EddieG:
Void Warranty - AT&T CSR

I have had a Sandisk Class 2 32GB card in my focus for over 8 months now with no apparent issues, however today I called AT&T for powercycle issues after using the display for 10-20 miutes, they sent me a new battery which didn't work, they then asked me about the memory card, since I had a 32 GB card it voided the warranty as stated on page 10 of the manual. Note AT&T only provided a quckstart guide and the cover of the card slot actually says to refer to the quickstart. Samsungs own press release states a class 2 32GB card will work. I am pissed to say the least.
[Focus General] jay200810:
How about SanDisk 8GB Class4？
[Focus General] jskind:
About two months ago made two mastakes 1.putting a 16GB class 6 adata card it my focus, 2. not reading the forum first. I tried every a every formating app i could find, every tried a mac, nothing worked. Today a student had an older nokia phone sitting on the bench(i've been carry the dead card everywhere with be just in case), ask to use it and it worked. The leason learned, if your not going to read the forum, hope you can find someone with a nokia.
[Focus General] goldenpipes:
Class 4 Kingston 32gb crashes sync after 8gb but I can sync with WiFi while plugged in to wall. I'm at work right now so ill sync tonight when I get home. First time filling this card up since nodo. I had 27gb filled and it was crashing to the start screen so well see if mango fixes anything.
[Focus General] neoxphuse:
OP needs to update the list... any new 32GB's that work?
[Focus General] goldenpipes:
This post needs to be gone through and there needs to be a secondary post with just the list no comments
[Focus General] Vmacsolutions:
I've been running a Sandisk 16 gig microSD in my Focus for almost a year, now. The only issues I've experienced is, the occasional phone not recognizing the memory. A soft reset has resolved this issue, with no loss of data or phone stability. I've upgraded to 7.5 (Mango) and have not experienced any issues, as of yet. I don't know if the Mango update will have the same issues with reading the card but, I will update if it does.

Going to hate to loose this extra memory, when I upgrade to the new Focus.
[Focus General] digitallysick:
I'm using a SanDisk 16GB Class 4 , no problems so far!
[Focus General] anseio:
Just picked up a Kingston 16GB class 4. I spent a lot of time looking for a card that would work, but forgot to think about searching this actual thread. WP7 won't even get past the splash screen after magldr boots into it.

Going back to Fry's in the morning to return it and try either PNY or Patriot. Or maybe drop back down to class 2. Thanks to local return policy, it seems I can keep trying until I get the right one. Don't want to drive all the way each time, so I'm going to have my car charger and some scissors. Will make the exchange, unlock my current SD card, perform a reset, clear SD MBR, then allow WP7 to boot. Eventually, one of them will work.

I'll report back on what I try.
[Focus General] EnderPsp:
That's unfortunate. I have a Kingston 16GB Class 4 on my phone, been using it for a while now with no issues. A few GB left so no fill up issue.
[Focus General] anseio:
Swapped it out for PNY 16GB class 4. Much faster. I'm now wondering if it was my Kingston 8GB c2 that was causing the battery drain problems I was having. Upon a hard reset, the 8GB would take a while to install the extra applications in Mango before 1st use. With the PNY, that process is done in about 5 seconds, as opposed to 5+ minutes.
[Focus General] anseio:
May have spoke too soon. Started getting random restarts last night. :(
[Focus General] kms108:
there are two version of the PNY, one is an oem of sandisk, the other is toshiba/kingston, the sandisk one should work, whiles the other will have problem.

kingston card, not too sure why, but they seem to have a compatibility problem with many windows 7 phone.

On the other hand i'm using the adata 32GB class 2 without any problem, adata brand tends to work well with many phones (Microsdhc) and even laptop (DDR3 Rams).
[Focus General] anseio:
I'm getting a Telstra HTC HD2 in a few days from eBay. Coming with a 16GB card, though probably class 2. Will see how that goes. If the restarts continue, Ima taking it back. :(
[Focus General] kms108:
The phone shouldn't have any problems, it's just the memory card and os that have compatibility problems, thats if you intend to install windows 7 to your phone, android wont have this problem.
[Focus General] anseio:
I'm fully aware of all of this, thanks though. I'm getting the Telstra HD2 because I really want AT&T 3G.
[Focus General] bhaskar1590:
i am using a transcend 32gb class 4 memory card for last 3 days and no problems so far!
[Focus General] hobgoblin13:
steps

I just got a focus, and a sandisk 32gb class 4 card. what is the recommended course of action for the best chances of card working. OS updates first, then hard reset and card installation. card installation then updates?
[Focus General] EnderPsp:
Update, install card, hard reset. Mango adds more fixes so it's better to start there and I hope you won't run in any issues. Good luck
[Focus General] kotaro_14:
Tested 3C Pro

32Gb

Class 6

[Made in Korea]

Compatible

Must be formatted first or will not detect. Soft-reseted many times, data is still there.
[Focus General] EnderPsp:
Thanks for reporting.

Can you please test it further by filling at least half of the space (ie with music)? Sometimes there are issues if more than half of the space is filled.
[Focus General] 1031982:
Hey, I'm just checking to see if you are still working or if you ran into problems with that 32GB microsd card.
[Focus General] EnderPsp:
Anyone tried Class 10 cards? I know there's a PNY Class 10 tested ok.

I'm more interested in the new Samsung Class 10 ones, as I heard they're very reliable.

Like the ones here (US) or here (UK).

Anyone?
[Focus General] shishirdbhat:
I have been using a 16 GB SanDisk Class 4 MicroSD card for a week or so now. So, totally I have 22.02 GB of storage, of which 9.27 GB is free.

The data remains after a soft reset, which I have been doing a lot lately because the phone has become glitchy (it is on version 7392. Being Focus 1.4, it hasn't got the Mango update yet. Bummer!). There is lag during some operations, or the lockscreen doesn't slide up sometimes, etc. It has even frozen up completely on occasion and I've had to remove battery and restart.

But now there is a more serious issue - the speech-feature (where you long-press the Windows button) doesn't work anymore! How could this have happened?

Any ideas, suggestions would be great. I could remove the card, do a hard reset and go back to factory defaults, but I'd prefer to keep the extra storage.