Database Users

[Q] SD Card for newbies

Hi, I recently purchased a Dell Venue Pro and I am going to get it some time this weekend. The main concern I have with this phone is the small amount of storage. 8gb is simply not enough for me. Perhaps I missed something, but I've been reading through this forum and haven't found a very good explanation for newbies on how to replace the SD Card. I have actually seen some posts that say that they managed to exchange their 8gb SD Card for a Sandisk 32GB micro SD card Class 2. However, I would like to have some guidance and instruction from someone experienced doing this; I wouldn't want a bricked Dell Venue Pro.
Therefore, could anyone please instruct me with a step by step guide on how to replace my SD card without crashing my system and which sd cards are compatible? Thank you.

Believe me when I tell you this will not work. What you will end up with is a bricked phone that needs to be replaced.
If you have a device that was shipped between December and now you don't have an engineering sample, those are the only devices that can actually format the sd card to the proper filesystem and lock the card down in way you'd expect it to.
If you'd like to test that theory, simply replace the card while it's off. Perform a hard reset on the device (the CAM + VOL DN combination does not work), shut it down and put the card back in an SD reader. It won't be formatted and won't be locked down.
You might be able to format the card on a Windows CE machine with storage manager, but the most I've been able to do is get the SD card test to show a 114 not ok instead of a 115 not ok.
After that, if you're lucky, you'll be able to simply throw the old card back in the device and proceed with enjoying your phone with the original SD card. If you're unlucky your phone will not boot.
Food for thought:
In the diagnostics application there is a button for "Service Center" which displays two boxes: Zune and Composite.
When you press the CAM key during boot this puts the device into a "restore" mode that Zune is supposed to work with at some point in the future.
I'm guessing if we can figure out a way to flip the mode to Composite (currently requires a password) that the "test/debug" bootloader will allow us to format the cards properly.
It's also entirely possible that the reason the engineering samples work and the retail devices don't is that the eng samples are in this mode already.

Wow thanks a lot for the very thorough answer. Do you think we will see memory expansion as a possibility in the near future?

Ok, without trying to insult anyone, 'm gonna call Bullshxt. I now have 3 VP's in my possession. Ok....1 I dropped and it doesn't start any more. But that still leaves 2. On both of them I have removed the SD card, replaced hte card with bigger and smaller SD cards and have even left the SD card slot empty. I have NEVER bricked my phone.
Let's leave performance behind first...and not consider it. Lets just talk about changing cards.
The key to changing cards is process. Take the card out and restart your device, it won't boot. there is no external keys for hard reset. Place that same card back in your device, it will start.
To change out a card, do this:
1. Hard reset your device
2. On the reboot portion, remove the battery and then remove the card
3. Put the battery back in and let the device start up
4. Walk through startup and your phone is ready to use.
Keep this same process each time. You cannot remove a card, without first going through the hard reset process. You cannot add a card with out first going through the hard reset process. The hard reset process initializes the card to the device.
I've done this at least a dozen times, with cards ranging from 2,4, 8 and 16g. I've done it with cards pulled out of Google phones and an HD2. I've done it with cards that have never been used before. Its 1, 2, 3, 4. No matter what combination of removal and add....1,2, 3, 4. Remove a card, its 1,2 ,3, 4. Add a card, 1,2,3,4. Simple.
Now...if you want to talk about Performance....thats another conversation....
Again....no insult intended with the BS call.

Sorry...forgot to add 1 thing.....this has been described on this forum several weeks ago...so...what I'm saying is not a huge discovery from me...but rather from the guy that posted this around christmas.....I just repeated it is all !!!

Oh OK, sweet thanks for the thorough step by step guide! This is exactly what I needed.
A few questions though.
On step 2. you mention a reboot portion. What does that mean? After hard resetting what is my "queue" to remomving my battery and SD Card
Also, you never state in the 4 step process when exactly I put my alternative SD Card in. Would I put it in step 3 when I put my battery in?
Finally, you say Performance is a different story. Are you saying that replacing SD Cards will make the phone slower or more prone to crashing or working less stably?
Thank you.

I think once the phone is ready to use again, you then start the process over again at Step 1, except instead of removing the SD card in Step 2, you put the new one in.
What I want to know is, if taking out the provided SD card voids the warranty, how do you get a new phone without paying for it? Or does the warranty not cover that specification?

none taken, but your claim about the device not booting if you remove the card is false.
It will boot, sans card, with ~15mb of free storage space with no customizations. It's also likely though that if your device does boot into this state, you will never be able to get another SD card to work in it ever again.
Even if it boots into the "no storage" state it's still possible to put in the old card (in most cases) and have it work. I'm just saying that has not been the case for everyone.

Looks like I've found quite a good amount of posts from people stating that they have swapped SD cards succcessfully so might try this if I feel like I require more storage. Would anyone happen to know if there are certain types of SD Cards I should use to make this work? Also, alodar1, you have stated something about performance being another story? Would I be sacrificing performance by swapping cards? What kinds of issues would I be having?

1) Open settings-> about menu in phone
2) Press "reset"
3) Press "yes" twice. The phone will start to reboot.
4) Wait until the phone shuts down and begins to reboot, and take the battery out. NOTE: If you take out the battery too early, it will not work correctly. I waited until I first saw the Dell logo pop up and then pulled the battery, and that worked.
5) Remove the old SD card (I used a very small eyeglass screwdriver to gently pry it out since it isn't spring loaded)
6) Put in new card, replace battery, restart phone
7) Go through the setup process
That should do it. My phone hasn't crashed since I replaced the card on Sunday, so its been a success for me. I have not had any performance issues with my new card - but I suppose that really depends on your card. Granted, I actually downgraded - I went to a Sandisk Class 4 8GB card. Soon enough I'll be getting a 32GB card and trying that one out.

Ah things are much clearer now thank you very much, will try this. I'll pray my phone doesn't go bad... gulp.
Also, are you saying you were a victim of the crashes and replacing the SD Card fixed it?

OK so I'm going to buy an SD Card, a 16gb, so should I go for a class 2 or class 4? What's the difference between the two and is any one of those two incompatible with the venue pro?

Erchino said:
Ah things are much clearer now thank you very much, will try this. I'll pray my phone doesn't go bad... gulp.
Also, are you saying you were a victim of the crashes and replacing the SD Card fixed it?
Click to expand...
Click to collapse
Yes - my phone crashed very frequently with the 16GB card. Many times a day. I've now gone a full week without a crash with the new card.
Erchino said:
OK so I'm going to buy an SD Card, a 16gb, so should I go for a class 2 or class 4? What's the difference between the two and is any one of those two incompatible with the venue pro?
Click to expand...
Click to collapse
Mine is class 4. The problem here is that there is no official specification. The class rating refers to data transfer speed - but the requirement for Windows Phone 7 is random access speed, which the card manufacturers don't advertise. Early reports actually showed that higher class (6+ cards) actually perform worse in WP7.

I don't have the DVP yet. Will the warranty be void when the SD card is replaced/removed? Thanks.

NeverSummer07 said:
I don't have the DVP yet. Will the warranty be void when the SD card is replaced/removed? Thanks.
Click to expand...
Click to collapse
Yes, the black tape shows "VOID" after you remove it. A prior warning would be nice, since the tape doesn't say that on the outside.

DeekoVB5 said:
Yes, the black tape shows "VOID" after you remove it. A prior warning would be nice, since the tape doesn't say that on the outside.
Click to expand...
Click to collapse
Does it really say "VOID"? I removed the tape but I can't discern any letters left on the device. However, I can see an "O" on the tape.

yep, it says VOID and the black VOID letters are left behind when you remove the sticker.

So for those who have replaced their cards, how is the phone holding up? Able to use wifi and the marketplace and IE with no crashes?

Erchino said:
Looks like I've found quite a good amount of posts from people stating that they have swapped SD cards succcessfully so might try this if I feel like I require more storage. Would anyone happen to know if there are certain types of SD Cards I should use to make this work? Also, alodar1, you have stated something about performance being another story? Would I be sacrificing performance by swapping cards? What kinds of issues would I be having?
Click to expand...
Click to collapse
sorry for the delay in replying. No, not necessarily. Personally I believe there is an issue with the specific cards Dell used. But what do I know for sure. I swapped to another 16g card...nothing fancy...just directly out of the HD2.....it worked and performance was better. A couple of friends of mine did a similar swap, looking at specific R/W speeds, class types, etc. They had mixed results. So, my guess is, there is something else that is a trigger that no one has hit on yet. I know my 16g performance is not as good as the 8g performance....in smoothness of card access. If I swap down to an 8g card...or even a 4g card....I can see the difference.....the performance is smoother.
Now, this doesn't say that those people with the 32g cards are NOT seeing that smoothness. I'm saying that I tried this as a test because I had cards laying around....and noticed a difference. The difference strongly indicates the shipped 16g cards are not what they should be. But, this does not mean the 32g cards on the market right now are the answer.

HELP !!!
I tried changing my 8GB SD card to a 16GB SD card. it booted up fine everything seemed ok, but when I restart the phone it loses all settings. So I put the original card back in, followed the same steps. Now my phone only sees 16 MEGABYTES of storage, I've tried multiple factory resets, after a reset it doesnt even go through the normal setup process. All it does is go back to the homescreen with only the normal tiles accept all the newsroom, tmobile family room and stuff isn't there either. If I pin an app to the start screen then restart the phone the pinned app is gone from the start up screen can someone PLEASE help, I'd be happy just to get it back to normal, with the original SD card in it

[Q] WP7 keeps rebooting

I come from magldr 1.12 and I installed 1.13, after that I went straight to usb flasher and flashed a new rom but it keeps bootlooping, starting over and over again. anyone had this problem too? maybe some tips?
if it doesn't work after five more flashes, I'll put it back to stock first

HectiQ said:
I come from magldr 1.12 and I installed 1.13, after that I went straight to usb flasher and flashed a new rom but it keeps bootlooping, starting over and over again. anyone had this problem too? maybe some tips?
if it doesn't work after five more flashes, I'll put it back to stock first
Click to expand...
Click to collapse
which new rom?, i'm running Moon and it occasionally reboots randomly.
Very intermittent and not constantly like yours by the sounds.
I'm also on MAGLDR 1.13

HectiQ said:
I come from magldr 1.12 and I installed 1.13, after that I went straight to usb flasher and flashed a new rom but it keeps bootlooping, starting over and over again. anyone had this problem too? maybe some tips?
if it doesn't work after five more flashes, I'll put it back to stock first
Click to expand...
Click to collapse
same thing happened to me...i jus went into tha magldr menu and shutdown..started it right back up and never had tha problem again

igrind2 said:
same thing happened to me...i jus went into tha magldr menu and shutdown..started it right back up and never had tha problem again
Click to expand...
Click to collapse
Thanks was worried when this started happening but that fixed it

igrind2 said:
same thing happened to me...i jus went into tha magldr menu and shutdown..started it right back up and never had tha problem again
Click to expand...
Click to collapse
thanks guys, I was having the same problem, and that little trick worked for me also. cheers
bahardman

hmm, I found the problem, I bought a new SD card today, this one is compactible, older SD cards aren't..

i would try a differnt sd card i havent had a single problem with wp7 since i flashed first time

Same here I have this problem with a Sandisk Class2 16GB restarting every 5 min or so tried everything formatted reformatted and nothing If I keep playing with the phone is no problem is look and unlock the screen normally but when is going in sleep mode by itself I can't start-it again everything is dead buttons lights don't came up, I give up and install a Sandisk class2 8GB no problems at all everything fine and no more restarting which led me to think not all the cards are good with WP7.

georo said:
Same here I have this problem with a Sandisk Class2 16GB restarting every 5 min or so tried everything formatted reformatted and nothing If I keep playing with the phone is no problem is look and unlock the screen normally but when is going in sleep mode by itself I can't start-it again everything is dead buttons lights don't came up, I give up and install a Sandisk class2 8GB no problems at all everything fine and no more restarting which led me to think not all the cards are good with WP7.
Click to expand...
Click to collapse
its the same with my sandisk 16gb class2 version 2011 have unfortunately the new version

I am using a Kingston class 4 16gb card and mine keeps restarting and the mgldr 1.13 shutdown wont fix it. I also tried kingston class 4 8gb sd card and a hc class 6 4gb sd card with the same results, all of them just keep booting up over and over again. Help

HectiQ said:
I come from magldr 1.12 and I installed 1.13, after that I went straight to usb flasher and flashed a new rom but it keeps bootlooping, starting over and over again. anyone had this problem too? maybe some tips?
if it doesn't work after five more flashes, I'll put it back to stock first
Click to expand...
Click to collapse
Your phone is the problem, It happened to mine and I went back to android, kept rebooting, then went back to 6.5 and it kept rebooting, turns out if it does that its a hardware problem and you have to RMA....

HectiQ said:
hmm, I found the problem, I bought a new SD card today, this one is compactible, older SD cards aren't..
Click to expand...
Click to collapse
nothing todo with how old it is, its todo with random read/write speeds, for instance, most newer cards with high class values like 6 or 10 use some odd mechanics that increase sequential speeds but lower random speeds, that is the issue, if the card at any point isnt able to give the spec needed then it has issues, in some cases its only minor in others it wont even be detected.
pteradactyle said:
Your phone is the problem, It happened to mine and I went back to android, kept rebooting, then went back to 6.5 and it kept rebooting, turns out if it does that its a hardware problem and you have to RMA....
Click to expand...
Click to collapse
evidently not, op stated the SD card was the issue and is now fixed when he replaced it.

interesting - I've now tried two WP7 ROMs on my UK HD2 - LEO70 and XBmod-WP7-V1.04b, with MAGLDR1.13 and 2.08.HSPL and 2.15.50.14 radio and got stuck in a boot loop with both.
The only thing that's fixed it was removing the SIM and both worked fine with any SD card I try. Doesn't make for a great phone though.....
Anyone got any thoughts?
EDIT - turns out it was my old T-Mobile SIM that was the problem. Have since tried two newer SIMs and both work fine with no bootloop!

dazza9075 said:
nothing todo with how old it is, its todo with random read/write speeds, for instance, most newer cards with high class values like 6 or 10 use some odd mechanics that increase sequential speeds but lower random speeds, that is the issue, if the card at any point isnt able to give the spec needed then it has issues, in some cases its only minor in others it wont even be detected.
evidently not, op stated the SD card was the issue and is now fixed when he replaced it.
Click to expand...
Click to collapse
hmm well sd card or not, FYI if your phone is overheating i suggest you revert to 6.5 immediately.

pteradactyle said:
hmm well sd card or not, FYI if your phone is overheating i suggest you revert to 6.5 immediately.
Click to expand...
Click to collapse
lol whats with these bold statements?
how do you know its overheating? where did the overheating comment come from? the OP didnt say as anything to the sort
you cant assume that because you have had or have read about an issue with overheating which produces these symptoms that every time a phone does the reboot thing has the same issue
however lets take it out of context, yes if you have an overheating device for a along period of time then its not going to be good, but heavy usage of the device, heavy WIFI or HSDPA usage will all make the phone rather warm, charging the battery will make it warm, if your device gets too warm it may just crash, which happens in 6.5 as well.

Hmmmmmm ?
Can I just say that I think this forum is absolutely amazing... I managed to get my HD2 running windows phone 7 in only about an hour...
I too also have this issue, but at the moment I have taken the memory card out and just reading away here.... now am not a newbie when it comes to technology, just a newbie when it comes to this forum lol
Judging with what has been said the Memory Card used in the Windows Phone 7 needs to have fast enough random access memory in order for it to operate with the phone (As If it was Solid State Memory in the actual phone)
So... having read as well from georo - I give up and install a Sandisk class2 8GB no problems at all everything fine and no more restarting which led me to think not all the cards are good with WP7
So I am now going to take a wee journey out tonight to try and find a memory card similar to what georo has said... a Class2 8GB Sandisk...
If I too can get it working with this card then we could maybe begin a small list that works with WP7 on HD2

grant190492 said:
Can I just say that I think this forum is absolutely amazing... I managed to get my HD2 running windows phone 7 in only about an hour...
I too also have this issue, but at the moment I have taken the memory card out and just reading away here.... now am not a newbie when it comes to technology, just a newbie when it comes to this forum lol
Judging with what has been said the Memory Card used in the Windows Phone 7 needs to have fast enough random access memory in order for it to operate with the phone (As If it was Solid State Memory in the actual phone)
So... having read as well from georo - I give up and install a Sandisk class2 8GB no problems at all everything fine and no more restarting which led me to think not all the cards are good with WP7
So I am now going to take a wee journey out tonight to try and find a memory card similar to what georo has said... a Class2 8GB Sandisk...
If I too can get it working with this card then we could maybe begin a small list that works with WP7 on HD2
Click to expand...
Click to collapse
From my readings, it's NOT a matter of speed of the SD card. Although, a class 2 card is pretty slow...you should consider at least a class 4 or 6.
But, I digress, the issue with the rebooting has to do with the compatibility of the SD card and WP7. For some unknown reason, people have had to try a hit-or-miss approach to finding a SD card that works.
I have been fortunate that my 3C Pro 16GB Class 6 card worked right off the bat. And you might want to read up on the meanings and speeds of the various SD Class designation before spending money on a Class 2 card.

pteradactyle said:
hmm well sd card or not, FYI if your phone is overheating i suggest you revert to 6.5 immediately.
Click to expand...
Click to collapse
Really? I guess I better revert back to WM6.5 since my perfectly running WP7 installation makes my phone get really warm during heavy usage!!!
LMAO!!!

hjhjhj said:
From my readings, it's NOT a matter of speed of the SD card. Although, a class 2 card is pretty slow...you should consider at least a class 4 or 6.
But, I digress, the issue with the rebooting has to do with the compatibility of the SD card and WP7. For some unknown reason, people have had to try a hit-or-miss approach to finding a SD card that works.
I have been fortunate that my 3C Pro 16GB Class 6 card worked right off the bat. And you might want to read up on the meanings and speeds of the various SD Class designation before spending money on a Class 2 card.
Click to expand...
Click to collapse
Ok thanks for the reply dude... as I have said I will need to get upto speed with this stuff... at the moment I have a standard SanDisk 2GB MicroSD... so suppose if I do go and buy a class 4-6 it will be money well spent anyway as I can always revert back to the old WM6.5 ... or just claim it didnt work and take it back...
Just on a wee note... I noticed that the HD7 which is pretty much the same phone runs on a Class 2 MicroSD (http://forum.xda-developers.com/showthread.php?t=883582)
Surely this should work?

also on this note... the card that comes out of a Stock 8Gb HD7 is a 8Gb Sandisk, Class 4...

help!...weird wp7 issues

Hello everyone ,flashed magldr 1.13 and a wp7 rom and my phone reboots and freezes along with when my phone goes into sleep mode and I press a key to wake it up,it usually doesn't respond or just reboots....any suggestions ?

Sounds like you're using an incompatible sd card... WP7 is very picky with what SD cards work with it. You need one with good random access speed (which has nothing to do with class... in fact higher class cards tend to have lower random access speeds).

zarathustrax said:
Sounds like you're using an incompatible sd card... WP7 is very picky with what SD cards work with it. You need one with good random access speed (which has nothing to do with class... in fact higher class cards tend to have lower random access speeds).
Click to expand...
Click to collapse
Confirmation
I agree with you, the symptoms are exactly like what I used to have with my first attempts with WP7 using the originally supplied sdcard (T-Mobile HD2). Believe it or not, I exchanged my sdcard with my brother's (from his omnia1) which was the same make, size, and class; voila, no more problems.
Later on, I purchased an 8 GB class 4 and tried it with WP7 and the same problems returned... so, it REALLY is picky about sdcards.
I hope this helps - as a confirmation.

Good info guys,using the mobile 16gig that came with phone...also bought a 8gig class 4 sd card yesterday and still same problem ...gonna buy another 16gig class 2 when I get home later ....do I have to flash rom again when I change sd card?????

WP7 doesn't support swapping of SDcards, so its going to reset immediately anyhow! For the sake of thoroughness, turn your phone off, put in the new SD, goto magldr's USB Flasher mode, and flash the DFT WP7 ROM.
Enjoy
Note: check out the thread on compatible sdcards before buying your new one. Cheers

bayou slim said:
Good info guys,using the mobile 16gig that came with phone...also bought a 8gig class 4 sd card yesterday and still same problem ...gonna buy another 16gig class 2 when I get home later ....do I have to flash rom again when I change sd card?????
Click to expand...
Click to collapse
no you don't, follow the steps from this site
http://www.techienote.com/tag/technology
you will get your information back with the old system, but but!!! if you didn't get a stable wp7 i mean if you didn't use it for a good time more than 5 days.
it would be better to flash new wp7 on ur new SD card.

[Q] please help why dose my phone keep restarting?

please help why dose my phone keep restarting?
it seems to just have gotten even worse!
everythans up to date i just dont understand why it keeps restarting?

I think your Sdcard does not match to Wp7.
Change another sdcard and try again
I am using Sandisk 8m that for your reference.
Sent from my GT-P1000 using XDA App

sakuramomoko said:
I think your Sdcard does not match to Wp7.
Change another sdcard and try again
I am using Sandisk 8m that for your reference.
Sent from my GT-P1000 using XDA App
Click to expand...
Click to collapse
I have 2 cards thay are both sandisc one is 16 gb the other is 4 gb i think thay are both class2 but am unsure thare is a logo that says c2 in the top right of the cards
however I dont think thats what the probulm is!
but am unsure.
I realy hope someone will help me figure this out.

Are you having this problem with BOTH SD cards, or just one?
The SD card, WP7, HD2 combination is very finicky. My Kingston 8GB c2 seemed to be functioning perfectly fine, with the exception of 6-7 hours battery life w/ little to no usage. I also noticed that it took a while for apps to install at the last step of a hard reset on 7720.
Thinking that Kingston was good, I upgraded to 16GB c4. The device wouldn't even boot past the splash screen after leaving magldr. So, I changed to a PNY 16gb c4 and got to see just how badly my 8GB had been performing. The apps that took a while to install at the last step of hard resetting Mango were installed in an instant. And my battery life tripled. I don't have to worry about my phone dying anymore.
So, it's very likely that your SD card can be causing the random reboots. Use dev_storagelock to unlock the card you currently have installed. Perform a hard reset. Stop the process when magldr starts and swap cards. Allow the new card to be integrated into WP7 and see if the reboot problem persists.

anseio said:
Are you having this problem with BOTH SD cards, or just one?
The SD card, WP7, HD2 combination is very finicky. My Kingston 8GB c2 seemed to be functioning perfectly fine, with the exception of 6-7 hours battery life w/ little to no usage. I also noticed that it took a while for apps to install at the last step of a hard reset on 7720.
Thinking that Kingston was good, I upgraded to 16GB c4. The device wouldn't even boot past the splash screen after leaving magldr. So, I changed to a PNY 16gb c4 and got to see just how badly my 8GB had been performing. The apps that took a while to install at the last step of hard resetting Mango were installed in an instant. And my battery life tripled. I don't have to worry about my phone dying anymore.
So, it's very likely that your SD card can be causing the random reboots. Use dev_storagelock to unlock the card you currently have installed. Perform a hard reset. Stop the process when magldr starts and swap cards. Allow the new card to be integrated into WP7 and see if the reboot problem persists.
Click to expand...
Click to collapse
ahh well i didnt have this problum be4 and i use the 4 gb card for android sence in case of emergency i actuly have a phone that works wile sorting out bttfv2 problums wich i cant seam to fix! i sure hope some genuss will relese a rom with not problums for wp7 on our hd2's

jackrabbit72380 said:
ahh well i didnt have this problum be4 and i use the 4 gb card for android sence in case of emergency i actuly have a phone that works wile sorting out bttfv2 problums wich i cant seam to fix! i sure hope some genuss will relese a rom with not problums for wp7 on our hd2's
Click to expand...
Click to collapse
It's probably not the ROM and most likely the SD card. That's what WP7 does. It's super picky.

anseio said:
It's probably not the ROM and most likely the SD card. That's what WP7 does. It's super picky.
Click to expand...
Click to collapse
i did a haed reset and cleard all crc data the problum still ocurs
the only diffrence to both of the sd cards a i have is size
so unless i was to go buy a higher class im gessing buying another would be pointless
the weard thang is this didnt alwase happen
i used bttfv1 no problums
had bttfv2 then all sorts of problums started happening first time i flashed most of the updates with zune
then was forced to start from scrach agin after i messed up my registry with advanced config
second time i upgraded to bttfv2 i used the one shot method and im not exactly sure but i think thats when i started haveing the issue.

You allready know what's wrong, it's the SD cards you've been using. Keep trying with class 2\4\6 Sandisk cards.

Hagenlund said:
You allready know what's wrong, it's the SD cards you've been using. Keep trying with class 2\4\6 Sandisk cards.
Click to expand...
Click to collapse
what was that a sarcastic remark? & no i dont know whats wrong because as i stated before i didnt have this problum before my previous installation.
i am useing sandisk class2 16gb i am useing the card that came with the phone i realy dont understand why that would be the issue?
whats the best card to get then?

Your SD card would be the issue if the card or some sectors on the card lacks the required random read\access speed. This could very well create problems on one installation while working seemingly fine on another.
I've already said what cards I believe gives you the highest chance of working, you'll just have to keep trying with those. Theoretically you could also try reinstalling the whole thing and hope that no critical files ends up on the lower speed sectors of the card, but I don't know what chance that would have of working.

The only marketable difference between the cards may be size, but WP7 doesn't really care about that. When I we say that it's picky, we really mean it. You can have great success with one card, and then put another in of the same brand different class and WP7 will no longer boot. SD cards affect battery life and everything.
By an SD card from Fry's, if there's one around. They've got a 15 day return policy w/o restock fee. I only went through 2 cards finding the right one to upgrade to, but was prepared to go through their entire selection and the sales girl even told me to not feel bad about doing it.

Hi,
probably you must calibrate battery or yours SD card not works correctly...
jackrabbit72380 said:
please help why dose my phone keep restarting?
it seems to just have gotten even worse!
everythans up to date i just dont understand why it keeps restarting?
Click to expand...
Click to collapse

I had the same issue bu not due to Sd card
I have a Kingston 16GB calss2 works perfect
The issue was that the original rom was American English
if i istall like it is everything works good and since i/m greek i can use also the buld in greek keypad with no problem
BUT when i change to my language the full functions of the phone , then it keeps
restarting byitself ....
For me no problem to work with the english menu at all , so i keep the device in english and works.

[Q] I just cant get this to work!! Please Help!!

I am using the DFT WM7 11.11.11 HD2O© v1.23b1 WP7 BUILD 7720, with the stock sd card that came with my US T-mobile HD2, however some main issues I really cant figure out.
-Will not wake up from stand-by mode! (Have to remove battery to reboot!)
-Constant freezing when switching between apps
-Phone restarts when trying to load text messages (0 messages in folder)
-Gives the loading... screen when going to freeze.
Im stuck... how can I fix this please!

try removing the sd card and then see if the phone works. it could be your sd card isnt compatible with wp7 and is causing the issues

as above, its most likely your SD card, it may work but that doesnt mean its compatible, same goes for any of us, it may be fine right up to the point you fill xx% of the card then bam, lock ups etc

Thanks! Will do a lil bit more research on the sd card and find a more compatible one.

there isnt any "compatible" ones, its very much luck, (except some PNY cards that are now being sold and WP7 compatible) we may have the same card but one might not be any good.
However, you can increase your chances
stick to a class 2 or 4 card
build quality (branded) does not mean its going to work
the PNY cards (its not all of them, you need to check their website an find the model numbers) would be your safest bet but they do cost more than your average card, of course, it will cost less if you happen to get 3 dud cards in a row....
Mine is 90% compatible, the odd freeze here an there, if i fill the card with 200MB of music i can over come some of this, its almost like it has bad sectors that WP has a fit over, filling those sectors seems to fix my issues, until i hit the next set of bad sectors
however there isnt any actual bad sectors, a lengthy check told me they were all perfect so its more likely that some parts are quicker than others and perhaps that is why i have these issues.
hope that helps!