Database Users

Does 4gb Memory Card Work On Xda Atom?

i just bought a 4gb topram mini sd card. i saw that most pocket pc read thisbut then again i wanna be sure ....
does the o2 xda atom (the one with the 416 mhz processor) read a 4gb card?
pls reply soon...i need to know

I'm trying to figure out the same thing myself.
The official O2 Website says that the maximum mini sd card they've tested is 2GB.
I'm not sure if a 4GB one will work.... I dunno??

andyv said:
i just bought a 4gb topram mini sd card. i saw that most pocket pc read thisbut then again i wanna be sure ....
does the o2 xda atom (the one with the 416 mhz processor) read a 4gb card?
pls reply soon...i need to know
Click to expand...
Click to collapse
Hi, I was using a 4gb mini SD card on my Atom until recently when I brought Gigabyte GSmart i300. So, there shouldn't be any problems.

Invisible Sense said:
Hi, I was using a 4gb mini SD card on my Atom until recently when I brought Gigabyte GSmart i300. So, there shouldn't be any problems.
Click to expand...
Click to collapse
Thanks for sharing the info.... would you reckon a Sandisk 4gb mini SD will work on the original atom ?

There are 4gig miniSDs? I only heard of 4gig miniSDHC. If SDHC worked on Atom, I'll be wildly happy. >_>

wats the difference between SDHC and mini SD?

omg thanks Invisible Sense for the info, i just hope this one actually works on mine cos i cant be sure, it could depend on the memory card make or firmware version.
and yer, its been mentioned in quite a lot of sites around...wot exactly is the difference between sd and sdhc? someone reply pls

sdhc is new tech pretty much, lets manufactures to make higher capacity... and the HC is just that means high capacity, they come in ratings of class 2-6 atm as far as speeds, unlike the sd ones which would have like x50 x120 x150 etc... and it will say most time sdhc or sd high capacity
i believe it has to be hardware support for sdhc, so no firmware cant just be made for it to work without hardware change

i am using a utek 4g mini sd on my atom life, transferred more than 3g of mp3s and movies to the 4g mini sd, so far so good, no problem at all with the utek 4g mini sd, hope this helps.

does it affect the memory?
the hc only varies speed right? not like 4 gb equivalent to 8? cos its high CAPACITY not high PERFORMANCE :S which should be associated with speed. i dont get it ..
capacity means contain...contain is storage....
oh and atom life is one of the best out right now ..so it would obviously take a 4gb card..i meant the normal regular O2 xda atom

http://en.wikipedia.org/wiki/Secure_Digital_card#SDHC
that might help you understand the difference

Disregarding the wiki, the difference is not just in the storage. It's in the driver. The limits are hardcoded and you have to redo the entire driver just to get it to read - and because these drivers are proprietary, you only get SDHC if your vendor chooses to integrate 'em. You're otherwise sadly out of luck.
(I still think SDHC doesn't require new hardware - vendors are spewing out a load of crock as an excuse to not support the older stuff. Especially when you consider that there exist camera firmware updates that convert slots for SDHC use out there - for cameras that were made WAY before even the 2.0 format was on the table. Even Sony's memory stick slots only required a driver update - SD, the reverse engineered clone of the Memory Stick standard, should not be any different.)

I have a Adata MyFlash 4MB x150 card and this runs fine, the TT5 runs of this and is very quick, no problems with WMA or camera pics.
By the way this is an XDA Exec, latest firmware

ynnebte said:
i am using a utek 4g mini sd on my atom life, transferred more than 3g of mp3s and movies to the 4g mini sd, so far so good, no problem at all with the utek 4g mini sd, hope this helps.
Click to expand...
Click to collapse
Where did u get it from and how much does it cost?
Could u please give us the link?
Thanks !

Hi Rizwan,
I got my 4gb Mini SD from the website below.
It's now only £29.99 and mine came in just 2 days and that was back in December.
Hope this helps!
http://www.mobymemory.com/1GB_2GB_mini_SD_miniSD_Memory_Cards_fromSanDisk_and_MobyMemory.asp

Invisible Sense said:
Hi Rizwan,
I got my 4gb Mini SD from the website below.
It's now only £29.99 and mine came in just 2 days and that was back in December.
Hope this helps!
http://www.mobymemory.com/1GB_2GB_mini_SD_miniSD_Memory_Cards_fromSanDisk_and_MobyMemory.asp
Click to expand...
Click to collapse
Many thanks for the link!
How is the speed on the card though? Is it slower than say a 2gb do u know?

I did have a 2gb miniSD before and can't tell any difference.
I do transfer a lot of data such as movies and music so have been used to the speed of the two cards. I will say though, having a 4gb card was far more important to me then speed, therefore I didn't care about the speed much.
My new phone Gigabyte i300 comes with USB 2.0 and I must say the speed of data transfer is amazingly quick.

Invisible Sense said:
I did have a 2gb miniSD before and can't tell any difference.
I do transfer a lot of data such as movies and music so have been used to the speed of the two cards. I will say though, having a 4gb card was far more important to me then speed, therefore I didn't care about the speed much.
My new phone Gigabyte i300 comes with USB 2.0 and I must say the speed of data transfer is amazingly quick.
Click to expand...
Click to collapse
Yeah you're right...... as long as it ain't too slow, speed isn't as much an issue as capacity.
I just bought an atom a couple of weeks back....I think I'll go for the 4gb card when my atom arrives!
Thanks a million for sharing the info!

many thanks
thanks for all the info ... uv really helped me out... many members here seem enthusiastic to help out...im glad i found this forum. ill let u guys know when i receive the card. i bought it from ebay btw...just in case anyone wants to know where i purchased it..
thanks

well when you think of the speeds, IMO it is a big deal esp when running apps on the miniSD anything that will precache etc...
but you might not notice speed difference because depending on your device, you might have to plug the card into a usb 2.0 card reader to get the benefits of higher speeds... and even then some card readers cant match it...
all i know is through device its slow if your using hte active sync i belive, if you do like one some devices as a card reader i believe it will work with usb 2.0 then, but active sync might be slow 1.1 usb?
also it seems that on the US side, the good high mem 2gb 4gb miniSD are missing, ebay has some but some brands are crap and going with oem can be fishy, if you guys read the issues with the other 4gb cards dieing and what not..

[Q] SD card help for running Android? Special File System/Format/Type?

Hi guys,
Lately ive been trying to get Android running on my HD2…
Ive successfully flashed the HD2 to android friendly ROMs, and installed versions of Android to my SD card… but I cannot get it to run.
I have read some things about needing a certain SD (file system, or a certain type of card/partion size?)… can someone please tell me if my SD card is android compatible… if I can just format it or if I need another card?
The SD card I have is a SanDisk 16GB MicroSDHC. I thought I heard something about needing a “Level/Class 4” or something, but I don’t know what that means.
I hope this question makes enough sense, and someone can break it down for me.
Any help is greatly appreciated.
Cheers.

[email protected] said:
Hi guys,
Lately ive been trying to get Android running on my HD2…
Ive successfully flashed the HD2 to android friendly ROMs, and installed versions of Android to my SD card… but I cannot get it to run.
I have read some things about needing a certain SD (file system, or a certain type of card/partion size?)… can someone please tell me if my SD card is android compatible… if I can just format it or if I need another card?
The SD card I have is a SanDisk 16GB MicroSDHC. I thought I heard something about needing a “Type 4” or something, but I don’t know what that means.
I hope this question makes enough sense, and someone can break it down for me.
Any help is greatly appreciated.
Cheers.
Click to expand...
Click to collapse
your sd card is fine. I've ran many android builds off that microSD, which if I'm assuming correctly is the one that comes with the HD2. Do a full format, not quick (so uncheck that box in windows). The preferred allocation size is 32k. If that doesn't work try formatting with SDFormatter

Thanks for your reply mate.
It is the SD card that came with my HD2, but I have the Telstra Version (T9193), so im not sure if it shipped with the same SD card world-wide.
I have just done some more research on the Class/Level Numbers of these SD cards, and I think the Class/Level Number is marked on the card with a circle around it, if that’s the case I have a Class/Level 2 card.
Thanks again for your reply, hopefully once I format the card, I will have more success than I had previously had.
Cheers.

one more thing though... what filesystem should i format the card to?
cheers.

[email protected] said:
one more thing though... what filesystem should i format the card to?
cheers.
Click to expand...
Click to collapse
FAT32, always
Edit: Yes, SanDisk class 2 is the same card mine came with. I've heard of some people getting them with 2GB cards, but I think for the most part 16GB calss 2 are what most people got.

no problem, thank you for your help.

it says right on the box it comes with a 16gb sd card.. if yours came with something else then the rep or the store owner took the 16gb card out and replaced it.
some shady stores would do this and try to sell you the card it came with.

aarons6 said:
it says right on the box it comes with a 16gb sd card.. if yours came with something else then the rep or the store owner took the 16gb card out and replaced it.
some shady stores would do this and try to sell you the card it came with.
Click to expand...
Click to collapse
i have no doubt the card i have is the card i was supposed to receive, i just wasnt sure if it was compatible with android.
cheers man.

aarons6 said:
it says right on the box it comes with a 16gb sd card.. if yours came with something else then the rep or the store owner took the 16gb card out and replaced it.
some shady stores would do this and try to sell you the card it came with.
Click to expand...
Click to collapse
Tmous got 16gb cards. Euro got 2gb ones.

Corrections, and swift answer
Firstly, flash storage devices marked as class 2 or class 4 would have nothing to do with comptibilty. Flash storage classes are the specifications of the maximum theoretical limit transfer speeds for that type of flash storage device. Take a look at this wiki article to learn more at wiki secure digital class rating article. Next, the type of storage device needs to be specified as microSD rather than SD since they are different flash types. And lastly the proper terms for storage sizes need to be used. GB means Gigabyte which is 1x10^9 bytes or 8x10^9 bits as 8 bits=1 byte, and Gb is Gigabit. The problem doesn't lie in the syntax or intended use of, it lies in the dumbing down, so should someone be wanting to learn these things they are getting taught wrong.
And for the swift answer, no class never makes a difference on compatiblity just whether it has the suffix HC or not, which stands for High Capacity as is reserved for any storage amount of 4GB to 32GB in which case is goes to XC which stands for extreme capactity and is reserved for 64GB to 2TB(TB=terabytes). The only reason this matters is each type of suffix is actually signifying a new type of transfer protocol which requires a firmware upgrade to read the new format(key work firmware not hardware, as one example even the oldest SD card reader could read a 128GB card with a proper firmware upgrade, albiet at lower transfer rates). And the format fat32 is typically used as the standard external storage filesystem.
I hope this answers any and all questions, always remember, what your writing doesn't just apply to you and your not the only one involved. Your words reflect like a butterflies wings.

Pusalieth said:
Firstly, flash storage devices marked as class 2 or class 4 would have nothing to do with comptibilty. Flash storage classes are the specifications of the maximum theoretical limit transfer speeds for that type of flash storage device. Take a look at this wiki article to learn more at wiki secure digital class rating article. Next, the type of storage device needs to be specified as microSD rather than SD since they are different flash types. And lastly the proper terms for storage sizes need to be used. GB means Gigabyte which is 1x10^9 bytes or 8x10^9 bits as 8 bits=1 byte, and Gb is Gigabit. The problem doesn't lie in the syntax or intended use of, it lies in the dumbing down, so should someone be wanting to learn these things they are getting taught wrong.
And for the swift answer, no class never makes a difference on compatiblity just whether it has the suffix HC or not, which stands for High Capacity as is reserved for any storage amount of 4GB to 32GB in which case is goes to XC which stands for extreme capactity and is reserved for 64GB to 2TB(TB=terabytes). The only reason this matters is each type of suffix is actually signifying a new type of transfer protocol which requires a firmware upgrade to read the new format(key work firmware not hardware, as one example even the oldest SD card reader could read a 128GB card with a proper firmware upgrade, albiet at lower transfer rates). And the format fat32 is typically used as the standard external storage filesystem.
I hope this answers any and all questions, always remember, what your writing doesn't just apply to you and your not the only one involved. Your words reflect like a butterflies wings.
Click to expand...
Click to collapse
Whilst your knowledge is great, the fact that you're unnecessarily bringing up an old thread from 2010 is not. I understand the need for 10 posts, and using your knowledge to help others in order to get 10 posts is the best way of doing it, but do it on new threads rather than old ones please.

Mango SD Card Compatibility Research

I just wanted to share my testing with all that are upgrading to Yuki-XBmod Mango Rom.
I was experiencing many problems with Mango on my HD2 and it was all associated to my SD card (patriot 16gb C4), although it worked decently in NODO. After doing some research I came across this great thread in XDA (http://forum.xda-developers.com/showthread.php?t=1150369) and decided to test some cards out for my self to see if I can get WP7 Mango running smoothly on my phone.
So I figured out that in order for the card to perform properly in WP7 you must have good random write speeds. If not, you will experience freeze, lag, random restarts, and overall headaches with WP7.
So, I did some research and found that Best Buy is selling PNY cards that are WP7 compatible.
Then after reading the above mentioned thread, I saw that the sandisk 32gb class 4 had great random speed results, so I decided to test both and my old patriot 16gb C4 to find out which card I would ultimately use as my HD2-WP7 SD card.
Here are the results, click on PDF to see my screen shots: (note all cards were formatted prior to testing)
Patriot Card:
It is obvious that the Patriot Card's random write speeds are ridiculously low, so this card is going to be re-formatted and will replace my 2gb card on my point & shoot camera. It scored great an sequential speeds (good for cameras), but as it is essential for WP7 to have good sequential write and read speeds, this is not a good choice for WP7 Phones.
PNY Card:
This card did very well. Scoring only higher to the Sandisk in sequential and 512K write and slightly higher (almost negligible) in 4k and 4kQD32, in the 1st run.
Sandisk:
This card (in my opinion did best) scoring higher in all read speeds, lagging only in sequential write speeds and 512K yet higher in random write. Being that random clocking is of most importance to WP7, I think that Sandisk 32gb class 4 will be the SD card I choose for my WP7 Windows Phone.
______________________Conclusion__________________ ______________
Both the PNY and Sandisk cards will work great in WP7 Phones, but I chose the Sandisk because it has higher read speeds. So that means once the program or data is loaded it will be able to read it faster. The most important factor for my decision was that the PNY costs 89.99 plus tax at best buy. The sandisk runs for 69.99 and I did a price match with a Comp USA printout and purchased the card for 59.99 plus tax. (30 dollars cheaper)
I highly recommend that anyone who is planning on switching to WP7, test their cards first with Crystal disk. If your random write speed is low, do not install WP7 until you get a better card.
I have also conveniently attached Crystal Disk so that you may test your cards and post the results. Please understand that the test will not work after you have already encrypted your card with WP7.

I disagree actuallly, after testing myself, i dont believe that testing with this software can indicate the speed of the card.
I believe that there are other factors involved that we are un-ware of.
For example, my 16GB sandisk class 2 gave great randoom r/w speeds with this piece of software, but in practice, it was slow, and very buggy.
So i switcheed and bought a 8GB sandisk class 4, which in tests, was actually slower than then 16gb one, but performed perfectly, lightening fast, installing apps in under 30 seconds everytime.
This is why i dont think you can accurately depict the likelyhood of a card working based on these values alone.

You could argue that if its incredibly slow, (less than 0.1mb/s write) then there maybe be some impact on overall performance, but by that time, youve purchased the card anyway!!
Also, cards maybe the same brand, make and model, but that doesnt mean if someone buys that card, it will work for them.

Completely agree with stevemilw
Ive seen posts of people with 32GB Sandisk Class 4 cards that also do not work,
stevemilw, did you ever try using the HD2 as the card reader incase there was an unseen issue with the card reader its self?
OP, i admire your efforts in trying to make sense of this for people but the reality is that its still a guess, and until you try it there is no way of knowing if its going to work

stevemilw said:
You could argue that if its incredibly slow, (less than 0.1mb/s write) then there maybe be some impact on overall performance, but by that time, youve purchased the card anyway!!
Also, cards maybe the same brand, make and model, but that doesnt mean if someone buys that card, it will work for them.
Click to expand...
Click to collapse
I cannot disagree with your arguments. That is why I mentioned at the beginning of this thread that these were my results. I agree about the fact that cards under .1mb/s random write, would most definitely fail in WP7. I also agree that cards that score really well in the test might also not perform well in WP7.
But if this thread at least prevents one person from going out and buying a class 10 card and spending lots of $$, for no apparent reason; Just to find out the card doesn't work on the phone, then I believe this post contributed to a good cause.
I opened this thread so that a dialogue may be started so that people may post their results on the random write speeds and real life performance on WP7 Mango.
This way we may weed out some cards that for sure will not work on our devices and find out why based on the testing and not a random persons saying my card did not work in WP7. With this tool we can figure out why the card did not work. (too much or too little speed)
Happy Testing!!!!

dazza9075 said:
Completely agree with stevemilw
Ive seen posts of people with 32GB Sandisk Class 4 cards that also do not work,
stevemilw, did you ever try using the HD2 as the card reader incase there was an unseen issue with the card reader its self?
OP, i admire your efforts in trying to make sense of this for people but the reality is that its still a guess, and until you try it there is no way of knowing if its going to work
Click to expand...
Click to collapse
Very True, I have also seen posts of people with Sandisk 32gb C4 cards say they don't work.
The reason I started this thread is to ask, Why didn't it work?
If your card did not work please do not clutter this thread with words saying so. Please show us data and testing on the card so that reader in this forum may analyze and figure out why the card didn't work.
Hopefully we can find out what type of card is required for good WP7 operation.

there is already a thead on this, which Steve an I took part in, there appeared to be some link between results, in that Random 4K reads needed to be around 600IOPS and random 4k writes needed to be around 20IOPS MIN,lower than that created issues. Unfortunately it wasnt as simple as that as some had cards with huge IOPS figures but still had dodgy performace.
The only thing that we never confirmed (hence my post) was if the card readers could have had a performace impact/
The other issue you have now is that we will be unable to test those SD cards once used with Mango 7712+
now, if you want to have an accurate test then i would suggest setting up a step by step guide to make sure that as many variables are removed as possible
That would be something akin to, a deep full format of the SD using a specific program with specfic settings, then connect it to something that we all have (the HD2 itsself in MAGLDR USB storage mode is a good start, then connect it to a USB 2 socket on a motherboard, then run the program for x number of times with specific settings, take an average, and then report.
You will need to get them to write down the full make and model number,
Getting folk to do that is going to be your biggest problem, but its a good idea if you can get the support for it, if enough people do it then perhaps something might be useful out of it, but unless you make up strick guidelines that everyone follows then the results will be meaningless.

64GB HD2 Windows Phone 7

I had a SanDisk 64GB Mobile Ultra MicroSDXC Class 6 card and I wondered if my Mango-tized HD2 would even recognize it.
It certainly appears to. I dunno, but that seems like news.
www passagestudio.com/images/64gbMangoHD2.jpg

Drecker said:
I had a SanDisk 64GB Mobile Ultra MicroSDXC Class 6 card and I wondered if my Mango-tized HD2 would even recognize it.
It certainly appears to. I dunno, but that seems like news.
www passagestudio.com/images/64gbMangoHD2.jpg
Click to expand...
Click to collapse
Id say thats news given that 64GB Micro SDs didnt exist when our HD2 was born.
To be honest, i dunno what id use that much space for, i dont think id ever fill a 32GB SD let alone that monster!
There was a time when id have dual booted android, but i cant be bothered with all that now WP is pretty much perfect on the HD2,

Hi.... Just wondering... Did you experience any change in battery drain and smooth running of the rom after installing 64gig sd card ,
And which rom unr using currently...

This is epic for someone like me! I'm one of those people that fills up 16 gigs in no time flat! 32 sounds nice, but 64 gigs!!!! I'm in heaven, I need to get one. How much did the 64gb card cost you?

Any updates on whether this works yet? I would like to upgrade from 32Gb soon.
Sent from my HD7 T9292 using XDA Windows Phone 7 App

Seems he has 64gb working, what's your battery life like with that card? I think SD card the main reason we all experience such different levels of life...
Sent from my HD7 T9292 using XDA Windows Phone 7 App

I am on HTC hd2 I put a post somewhere saying that I am now on a dual boot with 64Gb Tf card in HTC hd2, works a treat
Sent from my Schubert using XDA Windows Phone 7 App

I also saw a bid on YouTube for the Hd7 folks of someone stripping down phone and fitting a 64gb SD in.
Sent from my Schubert using XDA Windows Phone 7 App

wow. amazing. does it mean that hd2 supports part of SDXC? can you use all of the storage volume;about 59GB?

I have mine split, but yes if you so choose, you can use all of the storage on the sd card, currently i have Everything working on the phone, running really smooth, only thing is that my carrier signal/reception is good, but for some reason the radio on this rom seems weaker than normal, Question for anyone that knows, is there a better one ready yet, I am on Orange.

promethieus said:
I have mine split, but yes if you so choose, you can use all of the storage on the sd card, currently i have Everything working on the phone, running really smooth, only thing is that my carrier signal/reception is good, but for some reason the radio on this rom seems weaker than normal, Question for anyone that knows, is there a better one ready yet, I am on Orange.
Click to expand...
Click to collapse
THing with Radios is that firstly we have 2 different radios to deal with, and secondly different networks and signal strength areas will do better with different radios, so you may find that the latest and greatest radio is actually worse than the first radio available because its been stripped from a phone on say, the O2 network.
Trial and error appears to be the best, or ask folk on your network what they use, ideally in your own country and even better near you,

On Amazon,
SanDisk 64GB Mobile Ultra MicroSDXC Class 6 Memory Card with SD Adapter - Retail Packaging by SanDisk
Buy new: $160.00
Click to expand...
Click to collapse

According to the SETTINGS|about page, I have 59.25GB Total Storage.

Battery life is not stellar, though I haven't really done any work to optimize that.

SDXC
Basically... All SDXC cards will work...
The thing is, this is how the cards are supposed to be shipped:
SD => FAT
SDHC => FAT32
SDXC => exFAT
Any SDXC card can be formatted as FAT32 to work with SDHC compatible devices. The OS "decides" how much of the storage capacity can actually be allocated.
Since microsoft probably took note of SDXC during development, windows phone uses a file format that either supports exFAT (which is a MS file format) or formats the cards in a file system that supports over 64gigs. Windows phone supports SD cards under 32 gig, so it supports FAT32 and FAT anyways (to be reformatted in the device)
Long story short, as soon as a device supports exFAT it is SDXC compatible. if a device supports FAT32, any SD card formatted in FAT32 works.

Will the 64GB SDXC card work with the original Windows Mobile 6.5 ?
Does exFAT work on WM6.5?

Wohooooo 64 Gb for what?

Yep got a dual booting 64gb SanDisk class 6 over here.
30.8 in windows
30.5 in android
(couldn't find a way to put more in android than windows b/c ad sd and wp7 nand.)
Battery drain seems the same. Check everytime I boot constantly to see if the current is -400 or -4.
Such a pain in the anus.
Go hd2!!!!!!!

hd2 head said:
Yep got a dual booting 64gb SanDisk class 6 over here.
30.8 in windows
30.5 in android
(couldn't find a way to put more in android than windows b/c ad sd and wp7 nand.)
Battery drain seems the same. Check everytime I boot constantly to see if the current is -400 or -4.
Such a pain in the anus.
Go hd2!!!!!!!
Click to expand...
Click to collapse
Doing the samething here: http://forum.xda-developers.com/showthread.php?t=1711310
Seeing as how Windows Phones uses the partition type exFAT, it'd be no problem picking up the 64Gb card since that is what it is formatted as.

n1nj4Lo said:
Doing the samething here: http://forum.xda-developers.com/showthread.php?t=1711310
Seeing as how Windows Phones uses the partition type exFAT, it'd be no problem picking up the 64Gb card since that is what it is formatted as.
Click to expand...
Click to collapse
In regards to the SanDisk Ultra 64GB SDXC...over the last couple of days I installed the NexusHD2 v2.3 and set the card up with 8GB EXT4 and 52GB FAT32. It ran slightly slower than NAND but I adjusted the CPU speed to compensate and overall a darn good experience. My next adventure was to dual boot both NexusHD2 and Pdaimatejam's WP7.8 and I split the card pretty much right down the middle taken into account the 200MB FAT32 WP7.8 creates upon it being deleted and for one brief moment you have only 2 partitions before continuing to create the EXT4 partition. WP7.8 will works up to a point and then begins the reboot loop. I understand there's a way to image a smaller memory card onto the 64 gig card and that's what I will be doing next. In the meanwhile I did successfully load Pdaimatejam's ROM into NAND but the key here is that card must be formatted as exFAT; otherwise it too will reboot endlessly. My only use for Android are CoPilot Navigation and Google Navigation and Skype; otherwise I prefer Windows Phone for one reason and one only; it runs as smooth as silk but WP7.8 lacks what WP8.x now haves...good GPS Navs, what my Titans and HD2 have is customization and that is a sticking point for me in regards to upgrading to the Lumia 92x series.

Sandisk 64Gb microSDXC : have anyone tryed already?

Guys, newest sandisk 64gb microSDXC will fit Defy?
http://www.sandisk.com/products/mobile1-memory-products/sandisk-ultra-microsdxc-card

It will fit in nicely becuse it is the same size as the microSDHC.
It doesnt work out of box ;you have to format it in the phone..then you' ll get 59 GB of free space.
No, i dont have it but i have read about it and it works in htc,samsung..

According to specs, memory is upgrade-able only to 32gb.
Will a 64gb card work?

I think you should take the risk and test it yourself

So does it work? That´s a very nice sd card

the defy supports 32gb sd official. 64 gb not supported. I think for any phone 16gb is stable for space and speed. how do they fill up 32gb?!

Gianluca85 said:
the defy supports 32gb sd official. 64 gb not supported. I think for any phone 16gb is stable for space and speed. how do they fill up 32gb?!
Click to expand...
Click to collapse
http://androidcommunity.com/sandisk...working-on-multiple-android-devices-20110927/
There are also reports that they are working on many older devices for those wondering. Some include the EVO 4G, original Galaxy S, and even the HTC Desire Z (aka T-Mobile G2). With both old and new, smartphones and tablets being able to take advantage of the 64GB SD cards this is a good sign many more will have the same fate. We can only assume manufacturers didn’t state SDXC support because none were out on the market at time of launch, or maybe there are other reasons yet unknown.
At first insert the device may say corrupt or error, just reformat your 64GB card inside the Android phone or tablet and you’re good to go. While many are currently working, this doesn’t mean they have full support. The chance of the cards failing, getting errors, and possibly losing all your stored data is still a possibility so use at your own risk for now. Hopefully we see more 64GB SDXC cards soon and at lower prices because $219 is a bit steep for me. — Thanks Murray!
Click to expand...
Click to collapse

SDXC cards use exfat file system. If defy doesnt support that then it probably wont work.
Ive seen reports of it being working on a lot of phones, so there's a chance it might work on defy, but the card needs to be formatted on pc first before using on phone and it wont work at full speed due to limitation on the old sdhc reader (sdxc reader is faster)

I'm asking to avoid risks ).
Why 64gb? Cause i have 32gb card and it have about 4gb left. Actually last few month i've forced to clean up card from time to time. Audiobooks, DVR, Navigation software, record lections on dictaphone... That stuff takes space but i've used not to worry about `if do i have avaliable space left` ). Also this card declares class 6, now i own Sandisk/32gb class 2, so it not just larger, it laso should be faster. Sometimes DVR+Navigation provides some lags, for example.

maybe the max is 32GB,class 10

you can buy but i thin you will see only 32gb space...

can defy uses class 10 sd card? i heard there is problem in taking picture with class 10 card...

read posts on XDA, yes it has a problem with 6 and 10 class

CM7 and miui can run fine class 10 cards now.

http://forum.xda-developers.com/showthread.php?t=1133548&highlight=class+10

SDXC on Defy?
It really works on Defy. I own one for a month now. Cost 80€/106$. Absolutely no problems after format. 59GB free. About 6MB/s write, 16MB/s read speed. Have fun.

Greater than 32Gb?
Biggest I've used is a 32Gb class 10. No problems at all.

Android police posted a review. Looks good.
http://www.androidpolice.com/2012/0...c-card-huge-capacity-meets-impressive-speeds/
Sent from my MB525 using XDA

This is funny yet strange. Why you think an article on a website has more truth than a forum post of a member? Both are written by a single person. Both can be faked or real.
The guy on the website used a newer Tegra device so his article is irrelevant for Defy users. The SDXC in my Defy works flawlessly for weeks now with 20GB free space left.
Of course you can ignore this. I don't care. But if you need space buy the SDXC and have fun.

MB525 said:
This is funny yet strange. Why you think an article on a website has more truth than a forum post of a member? Both are written by a single person. Both can be faked or real.
The guy on the website used a newer Tegra device so his article is irrelevant for Defy users. The SDXC in my Defy works flawlessly for weeks now with 20GB free space left.
Of course you can ignore this. I don't care. But if you need space buy the SDXC and have fun.
Click to expand...
Click to collapse
I wasn't doubting your experience with the card, I was just posting another source of info about it complete with benchmarks etc.
Glad you like the card.
Sent from my MB525 using XDA