Possible anti-freeze for TMOUS HD2/HD2s in general? - HD2 General

http://community.htc.com/na/htc-forums/windows-phone/f/90/t/1651.aspx
It was the same conclusion I was coming, but this verified it.
The shotty class 2 SDHC and the fact that I'm installing core apps to the main memory....giving me **** performance.
Will try my class 6 SDHC 8gb card tonight and install everything to the card.
pictures/messages/etc

No, it doesn't work.
I thought it did until I installed apps and started using the phone normally.
Fail.
All apps installed onto sdhc

Must be your phone. I install all my apps in the main memory and never had a freeze or anything. The wife and I love our HD2's. It has never frozed on us. Especially mine, because I'm the tester for all the cabs I could find and tweaks there is out there.
The only time I got it to freeze was when I was editing the registry. Also, the card that came with the TMOUS is a cheap card. Just use that for storage and nothing else. There should be plenty of room in the main memory for apps.
One other problem is BSB tweaks messes with you during calls. But there is a simple deselect fix for it.

Dammit, I wish I would have read this before I ordered a 16 gig class 6 memory card! Lol, oh well, I guess it won't hurt to have it.

darkphantom said:
http://community.htc.com/na/htc-forums/windows-phone/f/90/t/1651.aspx
It was the same conclusion I was coming, but this verified it.
The shotty class 2 SDHC and the fact that I'm installing core apps to the main memory....giving me **** performance.
Will try my class 6 SDHC 8gb card tonight and install everything to the card.
pictures/messages/etc
Click to expand...
Click to collapse
darkphantom, I think the issue isn't with the card itself, but rather the phone indexing it when it's full of lots of smaller files (like when you install apps on there). With the generous amount of storage memory on the HD2, you should be able to safely install apps to the phone...this phone sidesteps the reason why people started installing apps to the cards in the first place on older hardware, to get around limited on-board storage. Apps will always run smoother/faster from the phone memory anyway, and I have a strong belief that a large part of the SD card problems HD2 owners are experiencing are actually due to not the total volume of data on the card, but how many files there are. Try running the phone with no card in it, or with a card that only has, say, a handful of media on it...I think you'll see a difference.
EDIT: adam...did you try running it that way too yet? I'll get back to your PM on the other issue in just a bit here

sirphunkee said:
darkphantom, I think the issue isn't with the card itself, but rather the phone indexing it when it's full of lots of smaller files (like when you install apps on there). With the generous amount of storage memory on the HD2, you should be able to safely install apps to the phone...this phone sidesteps the reason why people started installing apps to the cards in the first place on older hardware, to get around limited on-board storage. Apps will always run smoother/faster from the phone memory anyway, and I have a strong belief that a large part of the SD card problems HD2 owners are experiencing are actually due to not the total volume of data on the card, but how many files there are. Try running the phone with no card in it, or with a card that only has, say, a handful of media on it...I think you'll see a difference.
Click to expand...
Click to collapse
That defeats the purpose of a memory card....
If you have hundreds of songs...what then? GPS files aren't big, but they are numerous.
I got a new one today, will try it out, if not ...selling it.

adamhlj said:
Dammit, I wish I would have read this before I ordered a 16 gig class 6 memory card! Lol, oh well, I guess it won't hurt to have it.
Click to expand...
Click to collapse
If I remember correctly the memory card slot only has the speed capabilities of class 2 anyway (the speed transfer between the phone & the memory card), but I could have read the specifications for the port wrong. So I haven't seen the need to upgrade the memory card, but that's just my 2 cents.

darkphantom said:
That defeats the purpose of a memory card....
If you have hundreds of songs...what then? GPS files aren't big, but they are numerous.
Click to expand...
Click to collapse
Yeah, I'm not arguing that at all...just wanted to validate the idea that the volume of files on the card are a more direct cause of the issue than the speed of the card. I just believe whatever algorithm they used for that isn't terribly efficient, and can get bogged down (and unstable) when it has to read and sort too many metatags.

I'm done with the phone. Tested the new unit by just turning it on and seeing how it was working.
Same issue.
Its For sale.
Good luck to everyone!

Related

SD lagg???

I keep looking at other forums and am trying to figure out if the SD card in the problem why the phone freezes? Does anyone know anything about this... Agree or Disagree
ldominguez1986 said:
I keep looking at other forums and am trying to figure out if the SD card in the problem why the phone freezes? Does anyone know anything about this... Agree or Disagree
Click to expand...
Click to collapse
I happen to agree, based on the evidence in the half-dozen more threads here discussing that same thing. It'll be pretty easy to determine if that's your issue...try running the phone without the card in it, and see if that makes a difference.
Now, technically, I believe the issue is related to the card, but may not be beacuse of the card itself....it seems like the phone chokes when there's a lot of files on the card and it has to index them. People who install apps to the card seem to experience this (or at least report it) more than people who don't, which would support that theory because installing apps to the card fills it up with files faster (per MB of space) than even moving a bunch of music might...and a large number of files to index could lead to this kind of behavior (theoretically) as opposed to just a card that was "full" by occupied volume. Again, you can test this by starting with an empty card, then filling it up gradually, and seeing if the issue appears at some point in the process.
In my opinion, the commonly-seen lagging issues in these phones may often (but not always) be casued by a combination of factors:
-class-2 card
-high file count on the card
-sense's (and maybe winmo's..?) constant re-indexing of card contents
Now, some people have reported that copying the card's contents to your desktop, reformatting the card, then copying the files back on to it resolves the issue for them. So, bottom line...who knows?
EDIT: here's maybe a better explanation (by example) of what I'm trying to say about the card being "full"...
Example 1: you have a handful of .mkv files ripped straight from bluray on your card, ~2GB each....putting 7 of those files on your (16GB) card would almost fill the available volume. But, since that's a small number of files, it wouldn't take the phone long to index them at all, despite the card being almost completely full. (again, my guess)
Example 2: you install a bunch of apps (say, 30-40), and almost all of them to the card. Even though those apps won't eat a whole lot of space on the card total (far less than 1GB probably), each one can have potentially dozens of individual files installed for it. In this case, the card wouldn't show as being very full (just from the apps anyway), but the large number of files would potentially cause any indexing of the card to slow down in proportion. (guess what...still just my guess) And, a lower-class card could contribute to the slowness in this case too...that bottleneck could multiply the effects.
It may help some people out to hide the program folders on the card from indexing, just to reduce the file count that has to be sorted through, but that's just an idle thought that just occured to me.
sirphunkee said:
I happen to agree, based on the evidence in the half-dozen more threads here discussing that same thing. It'll be pretty easy to determine if that's your issue...try running the phone without the card in it, and see if that makes a difference.
Now, technically, I believe the issue is related to the card, but may not be beacuse of the card itself....it seems like the phone chokes when there's a lot of files on the card and it has to index them. People who install apps to the card seem to experience this (or at least report it) more than people who don't, which would support that theory because installing apps to the card fills it up with files faster (per MB of space) than even moving a bunch of music might...and a large number of files to index could lead to this kind of behavior (theoretically) as opposed to just a card that was "full" by occupied volume. Again, you can test this by starting with an empty card, then filling it up gradually, and seeing if the issue appears at some point in the process.
In my opinion, the commonly-seen lagging issues in these phones may often (but not always) be casued by a combination of factors:
-class-2 card
-high file count on the card
-sense's (and maybe winmo's..?) constant re-indexing of card contents
Now, some people have reported that copying the card's contents to your desktop, reformatting the card, then copying the files back on to it resolves the issue for them. So, bottom line...who knows?
EDIT: here's maybe a better explanation (by example) of what I'm trying to say about the card being "full"...
Example 1: you have a handful of .mkv files ripped straight from bluray on your card, ~2GB each....putting 7 of those files on your (16GB) card would almost fill the available volume. But, since that's a small number of files, it wouldn't take the phone long to index them at all, despite the card being almost completely full. (again, my guess)
Example 2: you install a bunch of apps (say, 30-40), and almost all of them to the card. Even though those apps won't eat a whole lot of space on the card total (far less than 1GB probably), each one can have potentially dozens of individual files installed for it. In this case, the card wouldn't show as being very full (just from the apps anyway), but the large number of files would potentially cause any indexing of the card to slow down in proportion. (guess what...still just my guess) And, a lower-class card could contribute to the slowness in this case too...that bottleneck could multiply the effects.
It may help some people out to hide the program folders on the card from indexing, just to reduce the file count that has to be sorted through, but that's just an idle thought that just occured to me.
Click to expand...
Click to collapse
Thank you, I do understand what you mean by the amount of files on the card. By the way, are you havong freezing problems with your phone??
ldominguez1986 said:
Thank you, I do understand what you mean by the amount of files on the card. By the way, are you havong freezing problems with your phone??
Click to expand...
Click to collapse
Actually, no...I've had absolutely zero issues with this phone, and I've had it (and used it constantly) for two weeks as of tonight. No freezing, no lag, nada. I don't keep a ton of stuff on my memory card (~15 mp3's, 4 .avi's, and 30-40 archived cabs, small handful of other junk), and I don't install any apps there (though I haven't bothered to remove the stock stuff put there by tmo).
I experience this lag, and altough i kinda agree with the card being the issue at the same time i am kind of hesitant. See the Card is a Class 2 which in theory will have a throughput of about 2mb a sec right? Mine peaks out at about 2.8mbps..... to me thats fast.... so i am not sure but i feel like the choke point is porbably in hardware. Again this is probably all bogus lol.
Like i said i do have this problem too, and i even reformatted my SD card and loaded all my files again. The problem still persist, and i really only notice it when i am listening to music via usb in my car. Also when i am scrolling through the pictures in my gallery(pics are in the SD).
Hope this makes atleast a bit of sense lol.
Disable Document Indexing by editing the registry or using a cab floating around the forums. Do a quick search and you should find it. This eliminates that lag no matter how many files on you SD card, with no degradation of performance opening files on the card that I can see.
nice man, thanks will have to look into that...
I have two HD2s (mine and my wife's). The experience with the two phones couldn't be more different. Mine has been perfect. My wife's has been very problematic. She has experienced slow, laggy performance, freezing that is only cured by pulling the battery, inability to unlock, text messages freezing for a minute plus, etc....... She isn't happy in the least that I convinced her to get rid of her blackberry.
On my wife's phone. I have tried a hard reset, various tweaks from these forums, switching in a 4GB class 6 card, removing the SD card completely and a few other things. Some helped a little but the phone just never worked right. It is currently being replaced by Tmo. With the troubleshooting I did I can't blame the SD card for the problems that phone had.
My phone on the other hand has been great and I have not had any problems with the SD card. I install all my games and non-essential apps to the SD card. I have ~650 MP3s on the card as well as ~900 various files that I take to and from work. There is a little over 8GB of data on the card with all these files. The only lag I have experienced is when switching to the HTC media player it takes a while (< 1 min) for it to index all my music and get to a usable state. I can try swapping in a 4 GB class 6 card to see if it makes a difference though since I have not had a problem I'm not sure I will notice a difference.
jehlinger said:
Disable Document Indexing by editing the registry or using a cab floating around the forums. Do a quick search and you should find it. This eliminates that lag no matter how many files on you SD card, with no degradation of performance opening files on the card that I can see.
Click to expand...
Click to collapse
Will that mess with anything on the media player, tho? Like will it still sort the music into albums, artists, etc on the HTC media player?
illconn said:
I experience this lag, and altough i kinda agree with the card being the issue at the same time i am kind of hesitant. See the Card is a Class 2 which in theory will have a throughput of about 2mb a sec right? Mine peaks out at about 2.8mbps..... to me thats fast.... so i am not sure but i feel like the choke point is porbably in hardware. Again this is probably all bogus lol.
Like i said i do have this problem too, and i even reformatted my SD card and loaded all my files again. The problem still persist, and i really only notice it when i am listening to music via usb in my car. Also when i am scrolling through the pictures in my gallery(pics are in the SD).
Hope this makes atleast a bit of sense lol.
Click to expand...
Click to collapse
From wikipedia, here's info on the speeds of the different class-ratings for SD cards:
The following are the ratings of some currently available cards:
Class 2: 16 Mbit/s (2 MB/s)
Class 4: 32 Mbit/s (4 MB/s)
Class 6: 48 Mbit/s (6 MB/s)
Class 10: 80 Mbit/s (10 MB/s)
Click to expand...
Click to collapse
so, if your transfers are capping out at 2.8Mbps, that's just a hair more than 1/8th of the 2MBps that the card should be able to handle.
jehlinger said:
Disable Document Indexing by editing the registry or using a cab floating around the forums. Do a quick search and you should find it. This eliminates that lag no matter how many files on you SD card, with no degradation of performance opening files on the card that I can see.
Click to expand...
Click to collapse
Will the phone work as normal after installing the cab?? I am knew to xda and winmo. Been on android os since it came out. I hate to ask but could someone post the link for that .cab file that fixes the lag
I saw that sirphunkee had posted in another thread that simply turning off your "recent documents" tab in sense should stop the indexing and therefore the lag as well. I had turned off the recent documents tab from almost the start of using the phone. I have not experienced the lag problem so this might be a testament to this working. I will turn it back on and see if things change for the worse throughout the day.
UPDATE: I have a had a little time to play with it during my lunch break. Everything seems to be fine with recent documents tab turned on. The slider seems a little slugish in now, like there is a second of lag before it moves. It doesn't happen all the time and I may not notice if I wasn't looking for it. I can brows just fine in the file explorer, texting isn't a problem other than the clunky interface, all is well so far.
Also of note is that I am running the stock ROM with co0kie's home tab and a slew of other visual mods (mostly transparencies). I also made quite a few changes to memory allocation via registry edits. This might be the difference and worth trying. I made many of the changes noted in this thread, basically all of them after "Suitable for all ROMs" and before "Added 11/2/10". I wish I would have thought about this earlier.

[Q] Performance of Focus with and without an SD Card?

Hi All,
I was wondering if someone who has added an SD card to their Focus could comment on the performance of it with it in and with it out.
Maybe a video of before and after showing a game loading or just a general comment on what they've noticed?
Thanks very much and looking forward to your responses!
Jonno
I got my Focus yesterday. Played with it all afternoon and evening. I already had a 16GB Sandisk class 2 card which is listed as compatible, so I went ahead and installed it.
Set everything back up and played with it some more, plus this morning. I've noticed no slowdowns or lagginess of any kind. I've got 22GB free after the install. Also tried the tethering and it worked great.
FYI: I did order the 16GB Kingston class 4 card, but didn't want to wait for it. I'll put that one in my old phone.
Verdict: very happy!
Thanks very much!
I saw a video just now with someone who had added a SD card to their Focus and it still outperformed the HD7. BUT, it was relatively empty (< 2 GB of storage used) which means that it is possible that more of the data was on the NAND memory than on the SD Card.
It would be interesting to see someone install an app without the card in and run it to see how long it takes, then add a card and install the same app and time it, and then fill up the card with media and THEN install the app (once the storage is almost full) and then time it.
May take some time but should be worth it in the end .
I know the data is supposed to be spread across any of the storage facilities available but we're not sure how it is done (simply filling it up, striping the data).
Yes, that's video was unfair, need a full data card to test, waiting
Http://Ricky119.com
Jonno2343 said:
Hi All,
I was wondering if someone who has added an SD card to their Focus could comment on the performance of it with it in and with it out.
Maybe a video of before and after showing a game loading or just a general comment on what they've noticed?
Thanks very much and looking forward to your responses!
Jonno
Click to expand...
Click to collapse
I ran for a week without an SD card and encountered many of the same issues reported (app hang/crash, marketplace lag/hang). I had to reboot a couple times my first week for one reason or another.
I've since added a class 2 sandisk 8gb and do not notice any difference, performance or otherwise. Incidently I have not had to reboot since I added memory. I have rebooted it once only verify the data was still there after reset.
Hope this helps,
I tested my coworker's Focus vs mine. He had a 16GB Sandisk class 2 card with >8gb of data. I had no card with ~7GB of data. I launched ilomilo on each phone about the same time. They finished pretty much at the same time.
I'll second the above, I've noticed no difference between having a card and not having a card except for the amount of storage available. I'm not saying there's no difference, I'm saying I've noticed no difference so I didn't bother measuring. Programs load and run at the same speed either way, media loads and plays at the same speed...no difference.
Guess I should add that mine is an 8GB Sandisk class 2 card. No problems whatsoever as far as speed, rebooting or anything else.
In my opinion, the best type of test would be a stock Focus vs a Focus with an added micro sd card with the phone+card loaded to the max with content.
I will test this and report back. I have a Focus stock and my wife has one with a 16GB Sandisk Class 2 card in it. I'll load it up and see if there is a difference over the weekend.
My Focus with no memory card has not crashed in the marketplace yet, my wife's does a lot...
Great, thanks very much!
Looking forward to the results.
This is really weird. My first test has one focus with a Class 2 Sandisk 16GB card but only 4.5 GB used total on the phone. The other Focus is stock with no card and about 4.5 GB used also.
Speed tests so far
Stock Focus -
- Marketplace and browsing the catalogs - much faster the first time I tested. after however it was mixed and occasionally the 16GB was quicker.
- People Hub - faster load and browsing.
- Bing Faster load just barely.
Focus+16GB - faster at loading Uverse and Netflix
- Loads Uverse faster
- Loads Netflix a second faster.
Both phones always get back to the main screen at the same speed, weird Also, occassionally the 16GB is slower, then the next test its faster.
I'll load up the card and report back.
The way you should test
Try this place the sd card in then add 9 gb of music and videos then install the program. I highly doubt the sd cards are causing program and marketplace crashes as I can get those to more noticably with wifi on. Also no one really knows what is running in the background. There is multitasking just not available to 3rd party apps so who knows if we are getting facebook syncs when things act weird. I would suggest not setting any accounts up and power off the phone then power it back on if you want a real comparison. The OS files would run from the NAND so dlls and other files that games and programs use should always run from the NAND but not the program it's self so loading the card with data that fills the nand then installing a program to the sd card would show if there are performance issues.
I've been very curious about this. I have a pny 8gb class 4 in mine. I've been paranoid about performance decreases, but i haven't seen any clear difference. But i would certainly appreciate a video or something confirming that there is no performance decrease, just to settle my paranoia.
When I first bought my Focus it was about a week before I actually installed a SD Card in it. Im using a 8gb Sandisk class 2 right now and have noticed NO difference in performance at all. Its still fast, smooth and runs beautifully. Ill be getting a 16gb Sandisk class 2 card very soon...I would assume that wont change things either....Seems Sandisk is the way to go if you wanna be safe...since Sandisk in used for phone memory by Samsung.
I have the Kingston 32GB card in... no issues what so ever and I have over 15GBs on the card to date. I took the chance and so far *KNOCK-ON-WOOD* nothing has come up
Should be getting a Sandisk 16GB Class 10 soon, will update.

New SD Card

Has anyone laid out the procedure for what to do with a new SD card and WP7 install? I've noticed many posts about it but no one saying exactly "this is what to do". I think this might be why there are so many posts about SD card failures. So if I have a new SD card and an HD2 and I want WP7, what do I do? Thanks ahead of time... Mod if there is an answer to this, I couldn't find it.
thuddome said:
Has anyone laid out the procedure for what to do with a new SD card and WP7 install? I've noticed many posts about it but no one saying exactly "this is what to do". I think this might be why there are so many posts about SD card failures. So if I have a new SD card and an HD2 and I want WP7, what do I do? Thanks ahead of time... Mod if there is an answer to this, I couldn't find it.
Click to expand...
Click to collapse
If you're just planning to run WP7 (so no fancy dualbooting with Android), there's not much to do, besides backing up anything on the card that you would like to keep. Your phone will create the necessary partitions and take care of the formatting on first boot, if I'm not mistaken.
Not really sure what you mean by "SD card failures". I don't recall reading any posts about that, unless you're referring to the random problems people are having with WP7 and some brands/types of SD cards (not really the result of any card failure).
aye what he said, if you have issues such as lag, wifi not working, random reboots etc then its an SD issue, that means you are out of luck with that current card, . Dont believe anyone when they tell you to buy a spacific card, there is no consistancy in the building of these things so where as you might have issues, someone else with the same card may be fine.i personally have had a wee bit of luck by filling my card with more music
the story is, i had no issues at all with my SD card, but one day after dumping some more music on i started getting reboot issues, took the music off and all was well, then i tried slapping more music on, about 200MB more, and that was it, all is ok again.
its a pure guess, well perhaps an educated guess, but i believe that for whatever reason WP7 had issues accessing a portion of my card, by filling it up some more it prevented WP7 from using it, and thus all is ok again, to be clear, the music played fine however!
dazza9075 said:
aye what he said, if you have issues such as lag, wifi not working, random reboots etc then its an SD issue, that means you are out of luck with that current card, . Dont believe anyone when they tell you to buy a spacific card, there is no consistancy in the building of these things so where as you might have issues, someone else with the same card may be fine.i personally have had a wee bit of luck by filling my card with more music
the story is, i had no issues at all with my SD card, but one day after dumping some more music on i started getting reboot issues, took the music off and all was well, then i tried slapping more music on, about 200MB more, and that was it, all is ok again.
its a pure guess, well perhaps an educated guess, but i believe that for whatever reason WP7 had issues accessing a portion of my card, by filling it up some more it prevented WP7 from using it, and thus all is ok again, to be clear, the music played fine however!
Click to expand...
Click to collapse
That's interesting because I have had the same experience. I have been playing around with multiple size cards and brands. I have yet to get one work right. I have also discovered how you format them makes a difference; for example I have a Patriot class 4 16GB card that using EASEUS to format (low level) it worked but had lag at certain times, for example when going through setup on a fresh install of WP7. It was at a dead crawl with the same config with Android. I then formatted it with Minitool and it was unusable (dead dead crawl) with either WP7 and Android. I also tested a Kingston class 4 32GB w/ wp7 and it was about the same as the Patriot w/ EASEUS formatting. No card I have found outperforms (in the phone) the Sandisk Class 2 16GB card that came with the phone. My suspicion is that the cards that came with the phones have had something done to the sectors by the phone manufacturers. I need to hear from someone who really knows the I/O and Cardbus architecture of phones. My point is there should be a way to get all cards working with any phone, might not be to specs of the card but between tweaking formatting and other hacks they all should work.
thuddome said:
That's interesting because I have had the same experience. I have been playing around with multiple size cards and brands. I have yet to get one work right. I have also discovered how you format them makes a difference; for example I have a Patriot class 4 16GB card that using EASEUS to format (low level) it worked but had lag at certain times, for example when going through setup on a fresh install of WP7. It was at a dead crawl with the same config with Android. I then formatted it with Minitool and it was unusable (dead dead crawl) with either WP7 and Android. I also tested a Kingston class 4 32GB w/ wp7 and it was about the same as the Patriot w/ EASEUS formatting. No card I have found outperforms (in the phone) the Sandisk Class 2 16GB card that came with the phone. My suspicion is that the cards that came with the phones have had something done to the sectors by the phone manufacturers. I need to hear from someone who really knows the I/O and Cardbus architecture of phones. My point is there should be a way to get all cards working with any phone, might not be to specs of the card but between tweaking formatting and other hacks they all should work.
Click to expand...
Click to collapse
My phone came with a Sandisk 2GB card and WP7 has offered me a SD Card Failed message regardless of what technique I have used to Format it...
thuddome said:
That's interesting because I have had the same experience. I have been playing around with multiple size cards and brands. I have yet to get one work right. I have also discovered how you format them makes a difference; for example I have a Patriot class 4 16GB card that using EASEUS to format (low level) it worked but had lag at certain times, for example when going through setup on a fresh install of WP7. It was at a dead crawl with the same config with Android. I then formatted it with Minitool and it was unusable (dead dead crawl) with either WP7 and Android. I also tested a Kingston class 4 32GB w/ wp7 and it was about the same as the Patriot w/ EASEUS formatting. No card I have found outperforms (in the phone) the Sandisk Class 2 16GB card that came with the phone. My suspicion is that the cards that came with the phones have had something done to the sectors by the phone manufacturers. I need to hear from someone who really knows the I/O and Cardbus architecture of phones. My point is there should be a way to get all cards working with any phone, might not be to specs of the card but between tweaking formatting and other hacks they all should work.
Click to expand...
Click to collapse
Lower class sd-cards have way better random reads/write speeds. This means they are better for storing file-caches, system files, and other rather small/scatered files. A higher class card will have awesome read/write speeds, but they do sacrifice the random speeds (they will preemptively load huge chunks of the file they are writing/reading to/from. So, they will have an overhead when accessing a file, that will be attenuated only if the operations made with that file are long. If u wanna write/read a large chunk of small non-sequential file/s, a class 2 is awesome. Which means that these cards are adequate form OS being run from them. Of course, when syncing with zune, you WILL notice a very decreased speed (since the files are being passed sequencially), but the system per se will operate silky smooth.
Hope this helped. Kudos mate
ei05035 said:
Lower class sd-cards have way better random reads/write speeds. This means they are better for storing file-caches, system files, and other rather small/scatered files. A higher class card will have awesome read/write speeds, but they do sacrifice the random speeds (they will preemptively load huge chunks of the file they are writing/reading to/from. So, they will have an overhead when accessing a file, that will be attenuated only if the operations made with that file are long. If u wanna write/read a large chunk of small non-sequential file/s, a class 2 is awesome. Which means that these cards are adequate form OS being run from them. Of course, when syncing with zune, you WILL notice a very decreased speed (since the files are being passed sequencially), but the system per se will operate silky smooth.
Hope this helped. Kudos mate
Click to expand...
Click to collapse
just about to write all of that myself but you beet me too it!
to add to that, no two cards are alike, make and model makes no difference hence my issue with the "working SD card" thread on here, there is no way to know other than trying it
My wee issue is possibly related to some dodgy parts within the card, it reports perfect but if internal components are not consistant it may explain my rather odd situation
dazza9075 said:
just about to write all of that myself but you beet me too it!
to add to that, no two cards are alike, make and model makes no difference hence my issue with the "working SD card" thread on here, there is no way to know other than trying it
My wee issue is possibly related to some dodgy parts within the card, it reports perfect but if internal components are not consistant it may explain my rather odd situation
Click to expand...
Click to collapse
In your situation i'd risk say it might have occured some corruption when transfering those musics. At least, considering that all is well now. It is unlikely that a sector of your card is/was permanently damaged, as repeting the operation worked, aye? Also, since I don't know what the file system is used by WP7, I do not know what maintenance the file system requires (such as defragmentation and whatnot)
perhaps, but it is repeatable, if i remove 400MB of music from my device its fine, if then copy 200 on to the card it reboots randomly, if i then copy the additional 200 back to the card it works fine
Potentially your correct, it may be some sign of wear on the card, but either way the music plays fine, which possibly suggests the random access speeds issue again, if it is sub-par sectors on the card that may explain it

32GB SD card issue - validated card as 32gb

I purchased a 32GB micro SD card for my HD2 after my 16GB card died last week. A sad day indeed, but an ideal time to upgrade
I've read a lot of threads on the forum about some people having issues with 32GB cards, and fake cards. This has prompted me to run H2testw, and also try formatting using SDformatterv3.
HD2testw - Verified as OK.
SDformatterv3 - Completes OK.
Now, when I add the newly formatted card to my phone, it mounts, and works fine. No problems at all. I then start to fill up the card with music. I firstly copied about 5GB to the card, and again I had no problems. The card works fine in the phone. I then copied another 10GB to the card. However now I have a problem. With the SD card in the phone, the phone hangs. When the phone is in standby, I press the power button and I get a black screen. If I remove the SD card then it starts to work correctly again.
So, my first thought was, duff card. So, running the programs above verified that the card is OK.
So, I am now wondering if the phone actually supports 32GB correctly (IE, when more than 16GB of data is on the card). I also thought that perhaps the ROM I am using is the problem.
I am running [CWR] BOYPPC-SHIFTPDA_GINGER 2.3.4-Sense.s V25 (24.May) ROM. I see that V35 is the most up to date rom, so perhaps I will need to reflash my phone. I will be testing this later today.
Has anybody else found themselves in a similar scenario, and did you find a solution?
Cheers,
I figured it out. Turns out to be a combination of things.
1) MIUI player locking up when trying to scan newly added music
2) Locking up because of some corrupt files
Tracking down the bad files resovled the problem
Noodleman said:
I figured it out. Turns out to be a combination of things.
1) MIUI player locking up when trying to scan newly added music
2) Locking up because of some corrupt files
Tracking down the bad files resovled the problem
Click to expand...
Click to collapse
good to see you solved it, cuz i have a 32 gb class 6 and no problem.
some to notice its that to some ppl a 32 gb class 10 works with some bugs, a class 4 or 6 seems to works better.
PS: if you are a flashaholic like me, you should have partition your sd card with CWM partition option, so you could use some of the beneffits of sd/ext that some ROMs use
So 32 Gb works well with Htc Hd2. But, it depends which company and speed.
msmkt said:
So 32 Gb works well with Htc Hd2. But, it depends which company and speed.
Click to expand...
Click to collapse
Yuupp, pretty much it is
Sent from my Nexus One using xda premium
I got a sandisk class 4 32gb card and seems to work well with android and windows phone 7 its part number is SDSDQM-032G-B35
32GB on HD2 issues
msmkt said:
So 32 Gb works well with Htc Hd2. But, it depends which company and speed.
Click to expand...
Click to collapse
That's the thing: I bought brand new 32 GB SanDisk and am using MIUI JB. Constantly upgrading with their daily build to new versions to no avail.
Problem: I filled card with my files to listen. Initially it works alright, after some time however I find some folders are gone, some files are gone, things just dissapear from the card.
Now I wonder is it a card, is it a MIUI JB or is it HD2 that got broken after my intensive use. Some electronics burnt down or something.
Does anybody had this issues : combination of HD2 with MIUI JB on 32GB card (NAND or SD - both). Keeps losing files in very consistent manner.
I also checked the card with different software and formatted it many times and re partitioned.
As an experiment I am trying now old 8GB card to make sure if its card or not.

SD card slowing my phone?

I noticed when using "selective focus" in Camera app that phone freezes for about 10 sec. Also when I am using Gallery app, phone freezes when I try to delete picture. Note that I set Camera to store pictures in SD card.
And now phone is not recognizing SD card at all.
My question is, if it is possible that SD card is causing my phone to freeze and if someone had similar problem to please tell me how you fix it?
Zato-1 said:
I noticed when using "selective focus" in Camera app that phone freezes for about 10 sec. Also when I am using Gallery app, phone freezes when I try to delete picture. Note that I set Camera to store pictures in SD card.
And now phone is not recognizing SD card at all.
My question is, if it is possible that SD card is causing my phone to freeze and if someone had similar problem to please tell me how you fix it?
Click to expand...
Click to collapse
We had this issue a while back on LG. Yes if you have a substandard card.
Moving apps and photos and such to a slower substandard card can cause lags in the system believe it or not
TheMadScientist said:
We had this issue a while back on LG. Yes if you have a substandard card.
Moving apps and photos and such to a slower substandard card can cause lags in the system believe it or not
Click to expand...
Click to collapse
Thanks for reply, now that my SD card is dead, after removing it from phone, my s8 works perfectly.
A question mr/mrs Mad Scientist: do you use micro SD card on your phone and what class is it?
Also what are your thoughts on SD cards, now that we have phones with bigger storage?
Zato-1 said:
Thanks for reply, now that my SD card is dead, after removing it from phone, my s8 works perfectly.
A question mr/mrs Mad Scientist: do you use micro SD card on your phone and what class is it?
Also what are your thoughts on SD cards, now that we have phones with bigger storage?
Click to expand...
Click to collapse
I did i got a samsung Evo 128 GB class 10 never had any issues out of it.Also had a 32 gb evo before this
I recently came into a jailboken PS Vita So I installed the SD card on it for all my games and no lags their either
But about 45 gb free Im a stickler for free space so I go my bare minimum music i listen too many apps
and what ever else and got like 35 gb free so No issues there
I even use it for download as its fater than my pc normally then just transfer what ever and delete
Most of my photos are backed up on google so no worrys there
So with the increased storage even at a 64 gb model Is more than plenty for my day to day life If it ever runs low Im sure I can clean enough up
But in the past slower or dying cards and such take time to read write if you have moved a bunch of active apps to sd that gets compounded and bottle-necked on read/write speeds Specialy when it comes to videos and big files or games

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