I'm facing a weird problem for O2 xda neo. while the picture files are saving in storage card, the picture distorted. Not only the pictures but also the video files. But when the files are saving in the main memory every thing is fine. At first I thought it was the camera problem. But after cheking I find that this problem occuers when I want to save the files in my kingston 1 gb sd memry card.
Can an body tell, what might be the problem? and whats the solution? i got hte neo only before 2 months ago. and now i'm having this problem. Is there any tweak can be done as a solution or do i need to change the card?
i'm uploading one picture so you can unederstand the problem.
Did you try another storage card instead?If you did so,does the problem still exist?
Cheers
Do you have the standard budget Kingston SD Card?
At best performance it can only offer
- Up to 5MB/sec. read rate
- Up to 1.5MB/sec. write rate
it is a very slow card, maybe it is too slow for video and photographic performance.
I don't know the minimum standards required, but as I use SAT NAV a lot, I thought it would be better in the long run spending a couple of extra pounds on a high speed card.
As such everything I run on the card, runs great.
NewSPV,
which SD write speeds to you actually get on XDA ?
I observe about 10x worse speeds on XDA than laptop...
kristox said:
NewSPV,
which SD write speeds to you actually get on XDA ?
I observe about 10x worse speeds on XDA than laptop...
Click to expand...
Click to collapse
Hi
I don't know my actual speeds on the SPV, but I bought a card rated
- Up to 20MB/sec. read speed
- Up to 9MB/sec. write speed
I thought I would need a fast read speed in order for the SAT NAV to keep up with the car at high speeds.
As I said, I have no problems running anything on the card.
hello again,
one of my friend has XDA neo, I tried with his memory card and it was okey with the capturing picture. No prb. So I think it might be the prb with my card. I found that its not a SD card, rather its a miniSD of Kingston. Except for the pictures, all other operations are going fine. Yesterday I bought another 2GB SD card(this time no miniSD), and it works fine for the camera, saving the pictures.
Thanks for all yours reply, these help me to know the speed issue of cards.
Hey there!
It's come to my attention that my XDA Mini S is horrifically slow at saving office documents to the storage card... I bought a 2GB storage card recently that seems to be working fine, apart from this little issue.
It would take up to half a minute or more for example, to save a 47kb pocket word document. When I do the same editing with a file on the internal memory it can be near instantaneous. With Excel it's even worse!
I tested the read/write speed of the card and it came out with a read speed of about 7.0x and a write speed of... something like 0.02x??
That's horrifically slow! A friend's card scored 5x and 2x respectively. However writing to the card normally doesn't seem to be so sluggish either, using the PC (with MiniSD<>SD adaptor) or the phone itself.
Any ideas??
I've been watching, reading, and doing my own research on the subject.
Here is my conclusion. Curious to see if you run into the same:
1) There were a bad batch of 16gb class 2 micro sdhc cards that were replaced by T-Mobile.
2) The micro sdhc cards were CLASS 2.
3) On the original stock ROM had \storage card\application data\htc data stored on the card. As of the new ROM, that data is officially stored on the phone memory. I know this because I sync my sdhc card to my home PC using ViceVersa and haven't had a single file in that directory change since the ROM upgrade.
4) I've never had any freeze issues, but that's because I have a 16gb CLASS 6 sdhc card that moved everything to and don't have the speed/reliability issues that others may have experienced because of #1 and #2.
I have no idea what the data is that was being pushed to the card in the old ROM, but I believe that T-Mobile recognized issues with pushing data to a card where it may not get mounted quick enough on boot, has speed issues (class 2), as well as having a possible bad shipment of cards.
I also believe that depending on the above scenario, T-Mobile may have been blindly replacing "bad" cards as a fix when in reality, it was more of an issue with the speed of the card and/or possibly the card not getting mounted quick enough on system boot causing stability issues.
I would challenge anybody with the original ROM to pull their SD cards for 24-48 hours and I bet your freeze issues go away, unless you actually do have a bad SD card.
On that same note, that would explain why a custom ROM would fix the problem, because chef's weren't configuring their ROM's to cache any data to an SD card.
Bottom line, it wouldn't matter if you installed anything to the card or not. Because the original ROM was configured to write to the SD card if it found one, you would "potentially" have freeze issues with a bad or slow card, no matter what.
Sorry if this is redundant, but I've seen everybody making conclusions on bits and pieces of the information, but not with the entire picture I painted. Maybe I'm right, maybe I'm wrong. You decide.
=)
Update:
After finally deleting the \storage card\application data folder, the files did come back. Does anybody know what these are? I'd like to get those to point back to the phone memory personally. I don't like anything on the external card, other then what I say should be there.
Hi All,
Does anyone else here suffer from continual SD card corruption? It appears that the early superblocks of my card are continually being corrupted by my Hero no matter how I format or partition the card.
Naturally I would assume that this was a card issue but running some load tests on a laptop shows the card to be functioning properly and reliably. Next thought would be that it's the phone but using an alternative card in the phone seems to be trouble free also. Any ideas?
My alternative card is a 2GB vs the troublesome 8GB card that I would prefer to have for music, etc.
I see lots of web results for people complaining about corrupt SD cards but no solutions or responses.
I had this problem too. Fixed by buying a decent class 6 microSD card. No problems since.
Hi guys, anyone else experiencing really slow downloads through the market? I'm talking 10-20kbs which is really annoying when I'm setting up a new rom. The issue seems to be rom independent and what I don't understand is why the market is so slow when my actual data connection is fine. I've ran speedtest and I'm getting 10Mbs connection speeds (over wifi) so it seems strange for the market to have such issues.
Yup, been having that on every rom as well. A temp fix I know is to unmount SD card before starting the download, that should give you good speed again. Not too practical for every update, but a huge timesaver after a fresh install!
This is a ROM issue not the markets slow server ?
It's definitely a problem on our side yes, the market servers are doing just fine.
Kezzainc said:
This is a ROM issue not the markets slow server ?
Click to expand...
Click to collapse
defiantly an issue with the ROM's, on my friends android phone everything on the market downloads in seconds.
StephanV said:
Yup, been having that on every rom as well. A temp fix I know is to unmount SD card before starting the download, that should give you good speed again. Not too practical for every update, but a huge timesaver after a fresh install!
Click to expand...
Click to collapse
I agree with this...i also realized that if unmounting SD solve my problem, maybe the sd is the problem...so I treat it out with another sd card...turn out my sd card was going bad...so if unmount SD helps, try another card...good luck
NexusHD2-FRG83D V1.7
use this build.
[20.11.2010][NexusHD2-FRG83D V1.7 PPP+RMNET] (hastarin r8.2 with G-Sensor Fix)
http://forum.xda-developers.com/showthread.php?t=793924
i am having downloads speed at 1.5M-2M from market.
i tried many other builds, but this one is a rocket with market downloads.
Enjoy
I am using the same building as mentioned by boldman78 and what he said is 100% true.
boldman78 said:
use this build.
[20.11.2010][NexusHD2-FRG83D V1.7 PPP+RMNET] (hastarin r8.2 with G-Sensor Fix)
http://forum.xda-developers.com/showthread.php?t=793924
i am having downloads speed at 1.5M-2M from market.
i tried many other builds, but this one is a rocket with market downloads.
Enjoy
Click to expand...
Click to collapse
Sent from my Nexus One using XDA App
I'll give it a go and see if it's the case, if it is we need to identify what's causing the problem in other builds.
I have the same issue on my hd2 android.
my download speed is about 5-40 kbps...
so what is the difference in this build? maybe the cooker can share it to make all builds perfect
azzzz said:
I agree with this...i also realized that if unmounting SD solve my problem, maybe the sd is the problem...so I treat it out with another sd card...turn out my sd card was going bad...so if unmount SD helps, try another card...good luck
Click to expand...
Click to collapse
You do realize, don't you, that when you use the "unmount SD card" option in Android, it doesn't actually unmount the SD card?
I've tried that build but I'm seeing no change in market download speeds, I have noticed that wifi speeds are much slower than over 3G though, I'll try this on my current build (MDJ FroYo HD v.4.0) to see if it's a wifi only issue.
johncmolyneux said:
You do realize, don't you, that when you use the "unmount SD card" option in Android, it doesn't actually unmount the SD card?
Click to expand...
Click to collapse
Of course I do...but if it helps, it helps...lol
@tung...did you try the unmounting SD method to see if it'll help...
Well, this problem that you guys are experiencing is all because of the SD card. I have tested two cards using the same build, one is the original SanDisk 16gb class 2 and one is the new Samsung 16gb class 2. The Sandisk download app super fast and the Samsung one only get 10-20kb/s. Even the same class, the two card have different write speed. So it is all because of the SD card. Seems like SanDisk would work best.
To explain the "unmount thing", because android systems sync with the SD card all the time and that take up a lot of write speed. If your card does not have a good write speed it would take longer. By "un-mounting" the SD card, you tell it to stop syncing and the speed is much improve. That's all. Warning: if you turn of the phone when unmount, you will experience data loss or corruption.
great way to put things in perspective...that's why I advice OP to try a new SD before blaming it on the BUILD...
ktran1588 said:
Well, this problem that you guys are experiencing is all because of the SD card. I have tested two cards using the same build, one is the original SanDisk 16gb class 2 and one is the new Samsung 16gb class 2. The Sandisk download app super fast and the Samsung one only get 10-20kb/s. Even the same class, the two card have different write speed. So it is all because of the SD card. Seems like SanDisk would work best.
To explain the "unmount thing", because android systems sync with the SD card all the time and that take up a lot of write speed. If your card does not have a good write speed it would take longer. By "un-mounting" the SD card, you tell it to stop syncing and the speed is much improve. That's all. Warning: if you turn of the phone when unmount, you will experience data loss or corruption.
Click to expand...
Click to collapse
i use the same card for all builds that i test and still nexusv1.7 is fastest on market downloads.
I think I can verify the SD card theory. My girlfriend and I both have hd2's running android (same build, rom, radio, hspl). The only thing different about our phones is that I'm running the original sandisk 16gb class 2 and she is running a 4gb PNY class 4 SD card.
Her market downloads, strangely enough, are incredibly slower than mine on the class 2. I had always wondered about that since she had a class 4...but I guess it does make sense. Although the payoff for her is her android boot time is incredibly fast.
-Devastator
With SD unmounted my market also is a little bit faster but still too slow.
(MDJ FROYO HD 4.0 and WLAN).
Any other solution?!
Yeah really very slow