yashsingh1/xdaforums huggingface dataset:
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] mickfarr:
Seem like the exact problem I'm having with my Kingston 4GB class 4 card. Could you report back with you findings?

Thanks
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] evolutionqy7:
Got a Toshiba Class 4 16GB and after i set up live services and try installing a few apps ( if it does let you do it [takes centuries to install] ) it goes awfull slow :( have to find the original 2gb sandisk i guess :)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] bryangopan:
Default 16 gb which came with t mobile Leo Works. :-)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Bigg Oskee:
I've been using the 16gb that came with my phone (same t-mobile) and its a tragic failure. Im getting constant reboots and if the screen times out for more than about 20 seconds it locks up requiring a reset
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Pegajoso:
Micro SD HC class 4 4GB Kingston Works!!!

Saludos
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] DD9200:
Kingston 8GB Class 4

Currently using an 8GB Class 4 card from Kingston, working well :) I've got a 32GB one on the way, Class 4 again, will report back if that one works too!
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] projektk:
the sd card also has inpact on battery life!
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] futureshock:
can report that atleast with repartition method and copiing the partition from my old transcend 8gb class 6 sd card to my new sd card its working:

SanDisk 16Gb Class 4 (Mobile Ultra micro SDHC Card with USB Reader)

SDSDQY-016G-U46

(bought for about 55€, i'm sure i can get it cheaper ... but i wanted it instantly ... bought it at conrad local store in austria! no other electornic store had 16GB cards with more than Class2 ...)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] BsB|oVeR:
sorry i just flashed to WP7. may i know how do u check if the phone can detect the SD card? there's no file explorer or anything.. can someone please help me?

Edit: oh i just found it. my class 4 scan disk 8GB SD card is detected! but may i know is there any file explorer or something?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Ultimaex:
Welcome to the WP7 world. The system is extremely locked down.

Actually there IS a file explorer called TouchXplorer. You need to sideload with Toms XAP installer after you unlocked the device with Chevron unlocker.

Use the search function or google. there are many guides how to unlock.

Edit: you can only see files in the system partition with TouchXplorer. I don't know if there is a way to browse the files transfered with Zune. Far as i know the data partition uses an unknown file system.

There is no way to transfer files without zune i think. Correct me if im wrong, i want to use the device as usb stick again :P
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] evolutionqy7:
That didn't come with my phone. I got 2gb with the phone, hell knows where it is
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] yllivia:
Same here.. 2GB Sandisk didn't do the trick for me either. I had that with my old nokia phone so i have no idea what class it is
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Xero Shadow:
Kingston SDHC 16GB Class 2. So far works like charm for me.. no wifi issues, no random reboot and no abnormal batt drainage. ;)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Ultimaex:
Strange, looks like im the only one with a working SanDisk 2GB :D

I had freezes and reboots when i flashed the first time. After Hard Reset it worked.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] mickfarr:
SanDisk microSDHC_8GB

SDSDQY-8192-A11M

- SanDisk microSDHC_16GB

SDSDQY-016G-A11M

Anyone know where I can get these specific sd cards in the uk?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] G-ThGraf:
i've SanDisk MicroSD 2Go, (including with HD2) and it doesn't works for me !
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] mickfarr:
There's a load of Sandisk 2gb SD cards, is it model number - SDSDQ-002G-A11M?

If it is it should work.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] erick10:
Hey guys, how do I know if my SD card is working? When I go through TouchXplorer and click on Storage Card is says 0 bytes. When I go to Phone settings it shows 1.5gb left. I have synced about 1.7 gb of music through Zune. Its a 4gb Class 2 card.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Zell Dinch:
Yah, There're just E11M cards... I think E stands for European and A stands for American. That's just the region code, so will that matter?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Ultimaex:
You have random reboots? If not it works for sure.

With some calculation you should have known yourself :P

To give you direction: HD2 NAND = 512/1024mb -- WP7 displays system rom = 1,5gb left

Conclusion: WP7 must use SD to have that much storage :)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] mickfarr:
I hope not, I've just ordered one of the E ones! :D
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] jessesam:
How do you hard reset after flashing WM7 ?

thanks
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Clksk8:
yup

Same problem here SanDisk 16GB Class 2 failure
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] jessesam:
I got my wifi working before but after a reebot now the wifi is not working , I read that wifi does not work because if sd card .

How is that possible because it was working for me before ?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Zell Dinch:
Please tell if it works. Btw, where did you order your card? Is it class 2 or 4? I can't find any sandisk card which has higher speed than class 2 in uk
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] erick10:
I guess it is working then. Its crazy how this RadioShack 4gb card I got for $10 is working lol. No reboots for me.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] jessesam:
When I used my 2 Gb card it showed only 15 mb left and plus wifi was not working after a reboot. But I flashed WM7 again now its showing I have 180 mb available and Wifi is also working and there is no reebot problem. So I wld say reflash again and then there wont be any problem with SD card.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] coacold:
toshiba 8g c4 SD-C08GR6W4 working

sandisk 2g lowspeed in the red package not work
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] william31518:
using the SD Card that came with my old Nokia 5800

8GB class2

WORKS!
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] DriesDeSchepper:
I have the same problem, what did you do?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] pakure:
add KINGMAX 1gb card to the compatible cards list:D:D:D
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] mickfarr:
Here's a link to a list of places selling them in the uk, just check the model number

http://skinflint.co.uk/a330503.html

EDIT: Its a class 4 card
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] PayAndDie:
Does his one defenitly work for you?

Edit: Sry double post -.-
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] PayAndDie:
Does this one defnetly work for you?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] mickfarr:
I only bought it last night so it will take a couple of days to get here. I'm currently using a Kingston 4GB class 4 SDHC card. Which works but can be very laggy and wifi doesn't work with it so I'll see how this one goes when it arrives and post back again. :)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Zell Dinch:
Do you know what is the difference between E11M and U46 ?? It seems that U46 cards are a little bit cheaper
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] xandercom:
There doesnt seem to be any pattern here then does there?

Just buy, try, return if not working.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] mickfarr:
I'm not sure what the difference is between the A11M/E11M (A11M = America, E11M = Europe) and the U46? The U46 has never been sold by Sandisk as being compatible for the Windows Phone 7, who knows it may be??

The A11M cards where original on sale on the Sandisk website as Windows Phone 7 compatible and then they had to take them down. I think MS didn't want people buying them and trying to change the memory on there phones which isn't supported. So we know that this card is compatible. :)

http://pocketnow.com/windows-phone/sandisk-lists-five-samsung-focus-compatible-microsd-cards
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] ganon4:
Maybe a stupid question and sorry if it was the case but when you change your sd to try another what you do? Just shutdown your phone, change your sd and boot again? then look into Zune?

Because I've try the stock 2gb sd card didn't work and now I'd try a 8gb sandisk too class2 and still not working...

Maybe I've to format in a specific format or nothing is required before ?

EDIT:

Ok just format my 8gb sd on fat32 then hardreset my windows phone 7 (parameters->about->reset)

Trying to reboot, reconfigure my windows phone 7, my zune didn't detect the phone so I've installed chevroncer then reboot and it's ok now I can see my phone on my zune and 5.95Go left ;)

Thanks all anyway :D
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] taizh21038:
Mine is the same issue,Cant be more slower
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] joker.mn:
i use kingston micro sd hc (2) with 16GB and it works like a charm.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] evolutionqy7:
I retract my previous statement :)

Did a complete overwrite format with this (btw works if you want to format back to normal format for going back to android or winmo)

And after a full wipe of the phone and reinstall ROM works perfect with:

Toshiba Class 4 16GB card ;)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] ocm7:
Kingston 128mb Class2 works, just in case anyone had one laying around lmao
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] unubtanium:
Does anyone know if this card from play.com works??

http://www.play.com/Mobiles/Mobile/...pe=allproducts&searchsource=0&urlrefer=search
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] taizh21038:
Edit:It seems almost everything goes well after one day use except for the heavy battery drain...about 2.5Mb/Sec while copying 1Gb Video from PC to Phone
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] mickfarr:
Here's an interesting article that explains the problems about using different SD cards in WP7.

http://www.engadget.com/2010/11/17/windows-phone-7s-microsd-mess-the-full-story-and-how-nokia-ca/

I've bought one of the Sandisk cards that were listed as being WP7 compatible so once I get my phone back (touch screen not working) from HTC I'll see if there's a big improvement in speed.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] jessesam:
For people using 2GB card are u guys getting "low storage error " is there a fix for it since I dont have anything on my SD card and still the low storage error pops up.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] ShortyZAZ:
Works very well: Sandisc 8GB Class 4

NOT working: Toshiba 16GB Class 4
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Dam4rusxp:
Working: Panasonic 2GB microSD class 4 (SJ9F AE1 0593)

Not working for me: Kingston 8GB microSDHC class 4 (SDC4/8GB 31236-001 .A00LF)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] maxld:
Sandisk 8GB Classic 2 worka, however I have got touchscreen randomly unresponsive.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] MoneyFist:
Lexar / 4GB / Class 2

Working great.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] G-ThGraf:
Working

Transcend

microSDHC 8GB Class 6
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Juno-First:
Working great, no resets etc...

Kingston 8BG class 10 (xbox likes this too)

Sandisk 4GB class 4, but a bit laggy at times (xbox moans this is not fast enough)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] st3v3:
yeah ive had the same issues on mine yesterday, but i didnt use that in the phone when i setup the WP7 rom
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] farhang_za:
Nokia MicroSD dont work at all!! i tested 1GB.

PNY MicroSD worked Fine (8GB).
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] romskii:
huuu so many replies, i'm going to collect every answer and write them down on first post later :) thanks for help !!
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] PayAndDie:
Hi,

What do I need to do after putting in the sd card? Do I only need a restart or do I have to make a hard reset? Or when do I need to put it in? When the phone is off or when it is on?

thanks in advanced :D

greets
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] s13igh:
2gb card is working just took many hard resets to become stable and stop restarting, havnt tried uploading anything from zune yet. dont know it that will sake the stability yet but we will wait and see
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] dula6000:
•PNY 4GB microSD High Capacity Memory Card

runs great. on my new hd2/7
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] PayAndDie:
Hi,

did you just put it in and it suddenly showed in info more space or did you do something special?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] dula6000:
refromate if u have a digital camera. flash radio 2.15 newest. flash tmobile stock rom. but make sure you backed up everthing that was on the sd card b4 for wp7. and just reflash the following steps for wp7. i kinda figure tmobile included important data on there sd cards.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] YauMannn:
but why just sandisk :(?

all sd cards are the same inside

my 8GB PNY doesn't work

this makes me sad
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] YauMannn:
please tell me how you got this to work, my 8GB PNY doesnt work
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] zhizhouj:
got a kingston 8gb class 4 had problems when first booted but now everything seems fine will let you know more
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] zhizhouj:
runs fine but won't sync with zune and can't install using xap
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] gl0b:
Same model as you (Kingston 8Gb class 4 from Taïwan SDC4/8 C08G) but works with lag and I also experience a big battery drain (1day on stand by) :(
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] domenukk:
http://xdaforums.com/showthread.php?t=834144

Quite a list. ;)

(The biggest one around probably)
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] sthEn:
I got absolutely NO problems with Kingston 8GB Class4...
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] maxld:
I have class 4 8gb card which was generating problems and lag. Trick is to put the card to phone when phone is booting and you see DFT logo on the screen. Now I do not have any problems. Card is running just fine.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] DD9200:
Kingston Class 4 32GB

I have a 32GB Class 4 Kingston card which I can confirm is working with no problems :)

[EDIT] It appeared to be working without any problems but when I rebooted WP7 resets itself and it did that continually, so it doesn't work 100%!
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] andreigann:
Kingmax 8Gb Class 6 - lag

Sandisk 16Gb Class 2 - working good
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] idimdim:
Samsung 8G class 4 - works great!

Kingstone 16GB class 10 - works, but laggy in 3rd party apps.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] poceh:
I've got Kingston 4GB Class 4 card into the phone, works pretty well without any problems (like Wi-Fi connection, random reboots and so on).

What I wanted to ask is that when I'm browsing the Market Place directories with applications the phone just stops responding for a 2-3 seconds (nothing is moving on the screen) and after that back to normal. It's not lagging - it just stops at random intervals for 2-3 seconds. Also the installation of apps takes about 30-60 seconds, even for the small apps.

Can those issues be related to the SD card? No other lagging or battery drain occur..
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] kavein86:
16GB class2 San Disk that came with phone, has been working for me with no problems. However, phone is activated and locked (cant download from marketplace). hopefully, things dont change when i get everything working

UPDATE: I have live services and marketplace working now. Everything works fine with the original SD card with no lag.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] taizh21038:
Toshiba 16Gb Class 4 - lag

Sandisk 32Gb Class 4 - working good
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] unubtanium:
All migthy 0001000101110010011

Please let my 16 SanDisk Card that are in transit to me work with the beautiful HD2 WP7 build!

:D
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] unubtanium:
Thank You all Mighty 0001000101110010011 for that my Sandisk 16GB (SDSDQM-016G-B35) Works So fine, no more lags
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] mcbyte_it:
As expected, in Italy there are no SanDisk A11M, i found only E11M and B35.

the E11M is said to be the european version of the A11M, so is it also compatible with WP7?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] zarathustrax:
If it's class 2 or 4 Sandisk, it will probably work, but there is no guarantee with any card as of now.... random access speeds can be different with different batches. But you probably have best chance with Sandisk.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] chrisp7:
My 16Gb Windows 7 phone compatible SD card doesnt seem to be working, well there is no lag but within Zune its saying.. total spae used 157.72mb no free space!?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Spenster:
Sandisk 16GB Class 2 - works well, no restart or battery drain, there is lag though especially with the Market and people section. Has anyone compared a class 6 to class 4? I assume 6 would be faster but it may not necessarily be better
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] zarathustrax:
Class 6 cards tend to not work as well for wp7 as class 2 and 4. Class 6 and 10 have a higher sequential write speed(which the HD2 can't even take advantage of, anyways), but the tweaks done to increase sequential write speed will often decrease the random access speed, which is what's most important with wp7 (and for running android off sd). Class 2 and 4 cards generally have better random access speed because they don't spend the extra time initializing the part of the NAND chip that is about to be accessed like higher class cards do. So for accessing small bits of data from various parts of the chip, lower class actually end up doing it quicker. Class 6 and 10 are mainly designed for digital camera's where high sequential write speeds is important. They will also use more power.

Now, this doesn't necessarily mean all class 2 cards will work for wp7, or that no class 10 cards will work, but in general, more class 2 cards work than class 6 or 10. The brand of the card makes a difference, too. Always go for quality like sandisk... in fact, after doing all the research I've done on memory cards in the last couple months, I think sandisk is all I'm gonna buy unless I come across a good deal for another decent brand. I will never buy kingston again... they are just bottom of the barrel rebranded junk. Sandisk sells all their chips that aren't good enough for them to sell to kingston. Sandisk actually owns the factories and produces their own chips, while most card brands just put their name on chips they buy from sandisk or other places.

Anyways... point is, your best bet is to get a class 2 or 4 sandisk for wp7. I have 2 32gb sandisk cards that both work great with wp7... 1 is class 2, 1 is class 4. My class 4 32gb Kingston doesn't work well with wp7.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Tastenchef:
i have startet with a 16 GB class 2 sandisk (one year old). runs but some lacks on shutdown and installing apps.

here are the benchmarks:

Sequential Read : 22.227 MB/s

Sequential Write : 7.437 MB/s

Random Read 512KB : 21.789 MB/s

Random Write 512KB : 0.917 MB/s

Random Read 4KB (QD=1) : 5.305 MB/s [ 1295.2 IOPS]

Random Write 4KB (QD=1) : 0.008 MB/s [ 1.9 IOPS]

Random Read 4KB (QD=32) : 5.663 MB/s [ 1382.7 IOPS]

Random Write 4KB (QD=32) : 0.008 MB/s [ 1.9 IOPS]

HD Tach 19,2 MB 0,6 ms

Random Write ist horrible!

now i have a new 16 GB Sandisk class 2 that looks exactly like the first card.

runs better - no more lacks, even faster.

here the benches of the new card:

Sequential Read : 15.806 MB/s

Sequential Write : 5.633 MB/s

Random Read 512KB : 15.170 MB/s

Random Write 512KB : 2.832 MB/s

Random Read 4KB (QD=1) : 1.335 MB/s [ 325.9 IOPS]

Random Write 4KB (QD=1) : 0.511 MB/s [ 124.7 IOPS]

Random Read 4KB (QD=32) : 0.859 MB/s [ 209.8 IOPS]

Random Write 4KB (QD=32) : 0.134 MB/s [ 32.7 IOPS]

HD Tach 8,0 MB 1,8 ms

random write speed ist much better.

Für alle aus good old germany welche noch eine funktionierende Karte suchen:

Diese stammt von amazon für lächerliche 20 EUR, kostenloser schneller Versand:

http://www.amazon.de/gp/product/B001F7AJKI/ref=oss_product

TC
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] zarathustrax:
That's weird, it looks like the first card should be better according to the benchmarks. Write speed and random write speed doesn't really make a difference with running wp7... read speeds would be more important. I think there's a lot of things that effect wp7's performance, and it seems that benchmarks can't really say for sure if a card will work or not.

And like you said, you can have a card that doesn't work, but you can get exact same card but produced at a different time, and it'll work better. That's why there is no guarantee any specific card will work... a card that works for one person may not work for another person. That's why these threads where people list the cards that worked for them are pretty pointless... just because a card works for you, you can't guarantee that it'll work for someone else.
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] aptalherifci:
A-data 4gb class 6 works perfectly
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] tejeskifly:
team 8gb class 6 working but sloooooooow

first boot take long time, but now it works, just my phone slow with sd card...
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] devlspawn:
FYI Random Write IOPS is THE most important thing for WP7 storage cards. I believe the number needs to be somewhere north of 20. Can you guys tell me which benchmarking software you are using to get the random write IOPS?
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] argentocruz:
Some feedback on the 3 cards I've used...

16gb Sandisk Class2 - Fastest and most reliable (Believe it or not)

16gb Kingston Class4 - Problematic card, intermittent pauses and restarts

16gb Pretec Class 6 - Problematic card, intermittent pauses and restarts

So my Class2 Sandisk is in and running fast and 100% solid... No pauses, no freezes, no restarts and no marketplace freezes...
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] dazza9075:
what he said ^^
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] pepi83:
Hi, i´ve trouble with the SanDisk SDHC 16GB Class 4... it´s not working

The Lexar SDHC 8 GB Class 6 is working well.... with my HD2
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] jpsplus:
MY HTC-HD2 REBORN

I HAD A KINGSTON 8GB CLASS 2 MICROSDHC & THE HTC CRAWLED.

I CHANGED YESTERDAY WITH A TRASCENT 8GB CLASS 6. NOW IS FLYING

I USE

[ROM] When dark forces don't suck come an angel (7392 ROOTED) [YukiXDA] [26/06]

VERSION 5 WITH GREEK KEYBOARD & I HAVE CURRENT CONSUMPTION ABOUN 1%/HOUR
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] kevinwalter:
It's working here realy fast on a 8GB Class 6. :)!
[HD2 Windows Phone 7 Q&A, Help & Troubleshooting an] Junkyardse:
I orderd a SanDisk 8GB class 2 micro SD card 2 min ago, I hope it works like you said it would :)