yashsingh1/xdaforums huggingface dataset:
[Focus General] 1031982:
I got a PM from dhan911 saying everything was still working, so I have ordered a Sandisk 32GB micro SD card, model SDSDQ-032G-A11M.

I will post back here after the install and syncing of my music. I have 13GB of it, so that's more then enough to go on to the card.

In addition to the videos, apps, and games I have, I will be using around 25GB.

If it works just fine, I will post another update either as soon as 5 months have passed without an issue or if I run into an issue. Whichever comes first.

My plan is to do the fallowing :

Pre-format the card with fat32 at 64K clusters three times, and do a format on my phone one time before installing, and two times after.

I will then sync everything from the Zune software, and restart to verify it's still usable.

Should it be, I will then format the phone again to re-sync.

Finally, I will simply use my phone on a regular bases.

I feel this will properly prepare the memory card, as well as "test" it.
[Focus General] dhan911:
As I have mentioned in my original post, if you face problem during sync - try changing USB port. Somehow my phone had problem for first sync on the front USB port. I switched to ports on the backside (desktop PC) and it worked just fine. I have had no problem with front USB for subsequent syncs.

As of now, my phone has 4.42/36.90 GB of available storage. I am definitely using the card for podcasts, music and apps. :)
[Focus General] bigfire:
I noticed that since I've moved to Mango, I haven't had any problems with my card. I used to have a problem every couple of weeks when I first put it in, then every couple of months after some updates, now, never. :-)
[Focus General] 1031982:
Well, my card was a dud. PC wouldn't see it, so I tried putting it in my phone anyway. I did a format 3 times, successfully, however after that the whole phone slowed down. For the first 5 GB, it was fine, then it went to a crawl.

I actually got errors trying to install apps as well. Sure enough, things started vanishing.

It took about 10 hours sync about half my content, and with errors throughout.

I tried using 3 different rear USB ports.

I have just gotten back from dropping it off to be returned. I might just go for a 16GB card. I have been using my Zune for music anyway. If I have to stay this way, that's not bad. I just already have 6GB of apps, so I want to get some more memory.
[Focus General] anseio:
About a month ago, I posted that they PNY 16GB c4 was working, then that it wasn't working. Well, after those 2 times of random reboots... it's behaved perfectly ever since. Battery life is good and no random reboots in 4 weeks.
[Focus General] 1031982:
Well, there are a number of 16GB cards that seem to work. Worst case scenario is that I would just get the certified 8GB card.

I love the phone itself, it's just that 8GB is almost nothing, even 10GB would allow more flexibility.

I will try out a few class 4 16GB cards first, fallowing the original setup scenario I posted.

EDIT :

The more I think about it, the more I just want to get the certified 8GB card. I already have to use an external MP3 player because of space, and I don't really want to keep resetting my phone to try something and hope it works.

Could be a lot worse, but that's the rout I'm going to take.
[Focus General] buggyglint:
Does anybody have any knowledge of the PNY 16GB MicroSDHC Class 4?

I would like to know if this will work. I know that the Class 2 works according to the list.

Any help is appreciated.
[Focus General] kms108:
it's hard to say, they have cards made by many manufacturer, so some will work, some wont.

kms
[Focus General] 1031982:
Ok, given that I can get a 16GB card for half the cost as a certified card, and other phones with a locked down/hidden microSD slot have a SanDisk 16GB card, I will go for a SanDisk 16GB class 4 card.

Such a pain just to fully use the phones potential. Why can't MS and Samsung certify more cards without the price jump?
[Focus General] kms108:
It's just a way to make money, even if the memory card is certified windows phone compatible doesn't mean it will run stable, i've used sandisk 32GB class 2 and 4, adata 32GB class 2 and 4 and they all work perfect, non of them stated windows phone certified, even the new now released sandisk 4GB, 8GB, 16GB, and 32GB all class 6 and UHS 1 specification stated compatible with windows phone, they may not work properly, as most memory cards class 6 and above have had problems in the past.

you just have to be lucky that the memory card does work.
[Focus General] 1031982:
I understand that, but it's insane on the amount they want to charge with that.

I am going to do what I can to run a 16GB card because as far as I have seen, they are more likely to work. In addition, I tried a 32GB card, which did not work. The cost for a 32GB card is still high, and in my opinion not worth the risk. The only way I would use a 32GB card is if someone already went through and tested it out. I would also greatly prefer to stay with Sandisk because as far as I have seen, they tend to be the most reliable.
[Focus General] EnderPsp:
Transcend 32 GB Class 4 works fine so far. Updated to Mango fine, unlocked. Have filled 9.5 GB just fine and quick...
[Focus General] kms108:
it seem like a hit and miss, you have to be lucky, but cards from toshiba and kingston has been comfirmed not working, these are made from the same manufacturer, other brands like PNY, some unbranded ones, earlier TDK and imatians ones, and pretec will depends on which one you buy, they have card made by toshiba, sandisk and other, you will have to see the printings on the cards.

adata and samdisk seems to work the best if you buy class 2-4, no matter what size, adata have cards made by themselves and from sandisk.

not sure about transcends.

Also cards with class 6 and above may have problems, as windows phone runs stable with slow cards at class 2-4.

type of problems includes not reading cards, error when certain limit is reached, reboots on start up, data loss and freeze/hangup.
[Focus General] VarDOS:
I'm confused with which card to buy. First I thought to go with Kingston 16GB Class 4, but it has some issues according to this thread.

What about Patriot Memory Card? which is avaliable on Amazon.
[Focus General] anseio:
I got the Kingston 16GB c4 and it wouldn't even fully boot up. Swapped out for PNY (same specs) and am problem free.
[Focus General] 1031982:
Well, I got a Sandisk 16GB Class 4 and it seems to be OK.

I formatted it to FAT32 with 64K clusters.

I have 13.98GB free out of 22.02GB.

I just started syncing all my music, already having some music and videos.

All my apps are on, and syncing has gone to about 5 songs a second.

I have a benchmark app, with the original stats of 4.7 on reading and 4.0 on writing.

With the card being used, I get 4.0 on reading and 2.7-3.2 on writing.

Considering that almost everything is read off the phone, I don't think it will be too bad.

At this point, I will post either after a couple months or if I have issues, whichever comes first.

Minor update -

After syncing all music to it, I now have 1.20GB free out of 22.02GB.

As of now, I am going to use my phone as if I knew it was 100% stable, and I will make a new post either when it fails, or on March 1st. Either way, I have run apps and played music and videos that I know are on the card, and there was no noticeable difference. The only times I notice a speed difference is when an app is installing, during a Zune sync with file transfers, and sometimes when a game saves. Overall, it's minimal to non-existent.
[Focus General] VSparxx:
Hi all.

Well after much temptation to upgrade my Focus with an microsd card, i bought the ”16Gb microSDHC ADATA Class4” , and can confirm that it's working without any problems for approx a month, and from the day one i throwed in all i can to fill the memory, so it's working after 10+ soft resets(inc. one battery pullout) and all this with the memory almost full( i have 5 GB of free space right now).

If to talk about the os slowdowns and overall responsiveness, well it's the same as it was until i put the microsd card, so no slowdowns at all, no reboots, no hangs.

Will update if anything happens in future, but until now it's working great.
[Focus General] chaitanya91845:
I used a Samsung Class 6 SDHC card. It is working without any issues. It survived soft resets, hard resets, flashing to AT&T factory ROM and updating to Mango(twice). :)
[Focus General] EnderPsp:
Kingston Class 4 should be fine.

Avoid Patriot (Class 10) as it doesn't work properly as per Samsung recommendation (as all Class 10 cards, the emphasis is on bust/sequential read/write rather than seek and random read/writes). There is also one report saying it works but you would be betting on luck, imho.
[Focus General] chaitanya91845:
Why is there no emphasis on Samsung SDHC cards? Although WP7's card problem is unique, shouldn't Samsung cards work well with Samsung phones?
[Focus General] EnderPsp:
I've asked the same question a while ago, but got no reply. I wouldn't keep my hopes high on this one either.
[Focus General] kms108:
i think it's probably, that samsung has only just recently entered the micro storage market during this year, previously it was nand chips for pc and phones and oem for other brands, external and micro storage has bloomed during these few years, so thats probably why, and they want a fair share of the market, even in hong kong, they only just released their first official stock of micro sd about a week ago.

the recent release of microsd seem good, got good speed, especially the plus series upto 16gb.
[Focus General] EnderPsp:
Good sequential and burst read/write rate isn't actually good for a WP7. Reduced random access times, yes. That's the reason Class 2/4 cards work so good generally, as the emphasis isn't on speed. And this is why manufacturers like Transcend don't build Class 10 32 GB cards.

Some cards are optimized for speed, some for reliability.

Now, I'm not saying Samsung isn't good, in fact I'm hoping it is.
[Focus General] kms108:
you probably misunderstand what i'm saying, i'm stating as a overall as a manufacture to produce memory cards, and not just for wp7, to my knowledge samsung do have slow cards at class 2-4, but i've only seen them sold in china (not fake ones), also transcends do have microsdhc class 10 32GB available, at least i've seen them in hong kong.
[Focus General] EnderPsp:
We're already offtopic so I'll be short: I doubt the Class 10 labelled Transcend you've seen were genuine. I just asked and got a reply from them confirming that all their micro SD Class 10 cards are here: 4,8 and 16 GB only.

For the rest, every producer has Class 2 or 4, and Samsung is one of the largest producers of flash memory and memory in general, so what comes from them should be good. However we still need a confirmation on the Samsung Class 10 32 GB card, working with Focus/HD7.
[Focus General] bhutoria_1989:
Guys, I have just installed Samsung 8 GB Micro SDHC Class 6 Card in my Samsung Focus.

How to verify it is stable?

I have filled the device around 5GB with Music & Movies and restarted it once and the data has remained....

Please guide me to test its stability.

Thanks
[Focus General] anseio:
You'll know it's stable when you don't get random reboots. When the phone performs at decent speeds, and when you have decent battery life. Poor SD card performance can manifest in ridiculously poor battery life.
[Focus General] EnderPsp:
Also, you need to fill the card up. Now, you are on 8+8=16gb from which you filled 5 gb, so might have filled only phone memory. Fill 12 gb and then see if you get unusual behavior: reboots, slowdowns, freezes, stuttering etc.
[Focus General] bhutoria_1989:
Ok will Fill it up today till 12-13 Gb and report.

Also, yesterday I updated to Mango and although the data is still there but the Battery saver in settings was behaving erratically. With 50% battery it shows time remaining as 10 Hours and then it updated to 3Hrs. It was constantly changing.

Any ideas, why?
[Focus General] EnderPsp:
That's relatively ok. The time displayed is adjusted according to phone usage. You didn't use it much before (thus displayed 10h), when you started, the prognosis adjusted accordingly.
[Focus General] jay200810:
SanDisk 8GB Class 4 works well
[Focus General] cysser0:
I have a SanDisk Class 4 16GB microSDHC card in the phone which is about 70% full.

The card has good random r/w IOPS and easily bests the requirements MS suggested in their slides. Unfortunately I have noticed a subtle hint of lag only compared to the baseline performance of the 8GB NAND it comes with originally. The 'lag' I refer to is primarily when flicking to the app list and scrolling rapidly or choosing a letter which is not on the screen. The issue is icons for the apps take a half second or so to display.

Anyone else experienced a similar issue? I'm happy to live with it for now, not much can be done and the extra storage is a worthwhile trade off IMO.
[Focus General] pwnerman:
i know this has most likely been answered and im sorry for asking but im new to the focus and i was just wondering if i insert a card and format it and all that then i reset the phone and remove the card will it be usable again in anything else?
[Focus General] VSparxx:
Generally ... no.

There is a workaround(format the card using a symbian powered device) to format cards so they become usable again, but it's not 100% sure, as it's not working with every symbian device, so far i heard it's working with the N97.

I have an E51, but i didn't tried yet to format the card using it as it's extremely stable in my Focus.
[Focus General] Coelho_rj:
My Kingston 32gb Class 6 is working flawless since the day i installed it, almost 1 year ago
[Focus General] kms108:
I haven't hear of kingston microsdhc 32gb class 6, only class 4 and class 10.

care to show us a photo of it.
[Focus General] Coelho_rj:
My bad.

The class 6 was SD in other device...

mine is also class 4

sorry the mistake
[Focus General] sebastianbf:
Been reading this thread for ages. I just got a Samsung Focus and I was wondering after the mango update, what card should I go for? I'm looking at 16gb cards, maybe 32gb if price is under $50. Thanks for your time.
[Focus General] EnderPsp:
Considering the OP is no longer updating the main page, I've added another category for Micro SD Cards non/working in the Focus wiki, please update accordingly and

responsibly

.

Added to wiki: Transcend 32 GB Class 4, my current card.

Added to wiki: SanDisk 16 GB Class 2, my old card.

LE: Added even more cards to wiki, from period 1 April 2011 upto 28 December 2011
[Focus General] ccfallout:
Sandisk 32gb Bulk Packaging

I purchased the sandisk 32gb 'bulk packaging' card from Amazon (seller: Blue Proton)

works great so far. ( 1 month ) I think it's class 4, but don't remember for sure, and afraid to take it out to look.
[Focus General] EnderPsp:
Turn off phone, remove battery then it's safe to remove the card, nothing will happen. Look at it and put it back, then battery and turn on phone.

Can you also please post your WP Bench results and the Sandisk model? Is it this card (SDSDQ-032G)?
[Focus General] Paulustrious:
Working card: Patriot Signature 32 GB Class 10 MicroSDHC PSF32GMCSDHC10

Patriot Signature 32 GB Class 10 MicroSDHC Flash Memory Card PSF32GMCSDHC10. Bought from Amazon for $64 on 2011-11-07. It has worked flawlessly for 2 months so far.

Phone model SGH 1917R

Total Storage 37.0 Gb

OS Version 7.10.8107.79

Firmware: 2124.11.9.4

Hardware revision 3.1.0.7

Has worked through 3 (-ish) software updates.

Off topic note: This phone was successfully unlocked first time with cellunlocker.net.
[Focus General] mywhiteside:
8GB Samsung Class 4 Working perfectly
[Focus General] Sholokov:
I installed a Sandisk 16 GB Class 4 card on my Focus around the begining of Jan 2012. I have had no issues since. My card has had upto approximately 10 GB of data on it. I have soft reset the phone a few times as well. There is no lag or anything of the sort since the install. Running flawlessly so far.

Bought the card from Walmart (approx. $25)
[Focus General] Leapo:
Saw this posted on another forum. Those 32GB Transcend (Class 4) cards can be had for $28 :eek:

I'm seriously tempted to replace the 16GB card in my Focus with one of those...
[Focus General] EnderPsp:
The card on the link is not a Transcend and package looks fishy-fakey to me (and I've seen my share). I do actually have a 32 GB Transcend Class 4 on my Focus, and I do recommend it but I got that from Amazon for $35 or so (it's $30 now).
[Focus General] OklaPony:
The 16 gig is only $13.00:

http://www.amazon.com/gp/product/B0...inc-20&tag=slicinc-20&ie=UTF8&m=ATVPDKIKX0DER
[Focus General] Archange1:
My 32GB Class 2 Sandisk has been working fine, however having crossed the 8GB remaining mark, I've had a few cases where if I hit the next track button on the lock screen (whilst the song is playing), it fails to skip to the next track; the song just stops (pause button still shows). Unpausing then playing hangs the phone :S This happened several times before I deleted all my songs from my phone (corrupted Zune library was screwing things up). Cant recall this being a problem when before crossing the 8GB remaining mark though...
[Focus General] vt2912:
16GB Samsung class 4 working
[Focus General] 1031982:
I have been using a SanDisk class 4 16gb card for a few months now. I have gotten an occasional slow down, but nothing major. Other then that, its been fine/great.
[Focus General] santhoshr:
32 gb sandisk card works beautifully

32gb sandisk card works without problem, but my batter performance is not great, don't know it is because of mem card
[Focus General] EnderPsp:
Disable background tasks, set the brightness to low. These are big savers.
[Focus General] santhoshr:
Yeah done that already, also setting sync interval to manual to email accounts has huge improvement. But I also found using 3g my phone lasts only 2 hours, everyone facing the same issue?

Sent from my Samsung Focus using Board Express
[Focus General] 1031982:
There seems to have been some updates and improved results with 32GB cards.

I was looking back in November/December 2011 and I got a bad 32GB, so I got a 16GB card.

However, I am running low on space, to where I only have 925.13MB free. (I have a lot of music, and what I don't listen to often only accounts for about 45MB.)

If there has been better results with 32GB cards, could the information be updated on the main post or/and reply to this one? I could use the space, and re-installing things is not an issue for me.
[Focus General] santhoshr:
Sandisk 32 gb class 4 works perfectly no restarts or hangs, hiccups or slowdown!
[Focus General] 1031982:
Ya, that's what I tried originally with issues none-stop.

I'll wait for more responses, thanks for the input!
[Focus General] EnderPsp:
Focus wiki has the working cards list for Focus, compiled from this thread, as per my post 1256 in this thread.
[Focus General] 1031982:
Thank you. I suppose now the question becomes does the exact model still matter?

I got my current 16GB from an exact model match, and have been happy with it, but I don't want to get a card just to have to exchange/return it.
[Focus General] alejandroelmej:
anyone has tried a 32 gb class 10?
[Focus General] EnderPsp:
(In the wiki) PNY and Patriot were reported as working with Focus for 32 GB class 10.

I just ordered my Transcend Ultimate 32GB class 10. Will update when I get it. Box looks like this:
[Focus General] santhoshr:
I don't know why people want class 10?! because class 4 is not bad, and it is not just the card speed matters also the hardware inside phone that should able to handle the speedy retrieval or bandwidth, OS should also support such speeds, according to SanDisk class 4 is recommended

Sent from my Samsung Focus using Board Express
[Focus General] 1031982:
Plus, with cell phones (and WP 7 especially) it's actually random access time that matters, not throughput. The higher the throughput or class, the lower the random access.

I may not know a lot when it comes to screwing with cell phones, but I know that I have a class 4 card and I never had an issue recording 720P video on my Focus.
[Focus General] EnderPsp:
You mean higher :)

Lower speed class (C2-C4) => lower access times (seek etc), lower burst rates (2-4 MB/sec)

Higher speed class (C6-C10) => higher access times, higher burst rates (6-10+ MB/sec)

Higher class (micro)SD cards are optimized for speed, not fast access times.

Refreshing (last page):

Focus wiki has the working cards list for Focus, compiled from this thread, as per my post 1256 in this thread.
[Focus General] cyril008:
can i install a card after using the phone for one month.../??
[Focus General] kms108:
yes you can, you can even do it after a year, either way you will need to reset the phone and have a new installed os and loss everything.
[Focus General] stylinwiley:
Hi guys i will be getting this phone unlocked in the next few days i have a pyn 8gb class 10 do you think it will work? i see the 8gb class 2 or 4 did...:cool:
[Focus General] EnderPsp:
If you bought it, you could try and tell us :D

If you're planning to buy a card and checking for options, I suggest looking at a 16 GB class 4, you won't see any real difference in the phone between them.
[Focus General] stylinwiley:
I have it from my old phone a mytouch 3g i will post back tomorrow and let you know if the info stays on the card after a soft reboot. :o
[Focus General] stylinwiley:
OK The pny 8 gb class 10 doesn't work i put it in and hold down the 3 things and formatted i took a few pics restarted phone and the pics didn't save...:mad:
[Focus General] EnderPsp:
I have some good news and some more good news :)

1st good new is: Transcend Ultimate 32GB Class 10 (TS32GUSDC10) card worked flawlessly in my Focus (Rogers). Taken dozens of photo and even a movie of 30min. Data was present after each soft reset, and I even removed the battery a couple of times, just in case.

Second good news is: if you revert to the "old" card, the backup actually works. Assuming you had the same nickname for the phone, Zune sees the restore and restores it perfectly.

Steps:

1. backup phone and power down phone

2. remove "old" card and install TS32GUSDC10

3. Hard reset

4. Test Focus + TS32GUSDC10 -> all good. WP Bench shows 8.9 MB/s for storage

5. power down phone, take out the TS32GUSDC10 card and put back the "old"

6. Hard reset,

7. when Zune starts: make sure you have the same nickname! (nothing else)

8. Zune restore

All good, I have the phone in the exact state as it was before!

Wiki updated with working status for TS32GUSDC10
[Focus General] dilenix:
samsung micro sd

I use a Samsung micro SD class 2 of 8GB and working 1000% very good :D
[Focus General] devicedementia:
any sd card consistencies?

I am a noob to this forum. I just ordered the samsung focus and want to add a sd card. I've read a lot of the 130 pages of this discussion and I dont see any consistencies in sd cards. some cards work for some people but not for others. I have three cards(patriot/4gb/cl4...generic/16gb/cl6...ordered a pny/8gb/class10). I want to use class 10 to be better videos and pics. Has anyone noticed any correlation of better pics to faster sd card with this phone? from my experience class 10 cards write much better vids and pics than the others. Is the type card i choose to insert into the focus a crapshoot or what?
[Focus General] HaVoKeR:
Good list, thank you!
[Focus General] kms108:
it's because some card brands are rebadged, pny, transcends, adata and others do this alot to reduce cost, although transcends previously use sandisk, now only have there own cards, adata uses sandisk now for their UHS1 cards and some normal cards.

So it really depends on whichcards you get.