Hi, I was using a sandisk mobile ultra class 6 8GB microsd card with android NAND. Everything smooth (SD Tools benchmark 8,6mb/s Write and 10.9mb/s read. Now, i upgraded for a samsung class 6 16GB card and write speed seems real low: copiing files from pc to phone around 600kb/s, benchmark at 5mb/s write, 27,2 read... Is it possible, to improve that, like a new driver for better compatibility?
I am using 2.08.HSPL with 1.4.0.1 CLK and 5.6.0.2 CWM. Speeds in CWM and in system are the same.
Thanks,
cmoe
P.S.: one more thing: i just realized, that, when i am copiing files to the sd in CWM, it works fast in the beginning like till 40% but then gets stucked and crappy slow till the end. This also happens with the install-bar in CWM (but this may also be related to the rom). But maybe thats cache-related and it only seems to be fast in beginning but still isnt faster than 600kb/s in real.
P.P.S.: Partitioning and Formatting done with CWM
just for telling:
as written above:
SAMSUNG 16GB Class 6:
SD Tools write: 4.4
SD Tools read: 27.9
Copying files via USB to CWM: 0.5
Copying files via USB to Android: 0.5
System also more laggy than before
Changed the card today for a SAMSUNG 16GB Class 10:
SD Tools write: 5.6
SD Tools read: 27.5
Copying files via USB to CWM: 0.9
Copying files via USB to Android: 0.9 WUHAAA FAST!!!!
Reverted byck to my old Sandisk mobile ULTRA 8GB Class 6:
SD Tools write: 7.9
SD Tools read: 29.7
Copying files via USB to CWM: 6.5
Copying files via USB to Android: 6.5
Ordered a SanDisk Mobile Ultra 32GB now, will post result in a few days when arrived.
Thats fine!
Related
What size sd card do you need to install Honeycomb on it? Class as well?
I have it running on my Patriot 8GB Class 10 and working great.
But I think you need a Class 6 or higher to get good response and 4GB or higher.
Thanks, it will erase everything on the sdcard, correct? So I shouldn't use one that I use normally for froyo?
If you write a new image to the sdcard, then yes it will erase everything on the card. Just get another sdcard or backup your Froyo one to your computer.
So I'm a NewB and managed to get DeeperBlue's v4.0 on a 16gb class 2 uSD card and IT WORKS!!! Even beyond that - I got Android market installed and now with Amazon's market (launched today), I've downloaded and installed swiftkey, and a number of other apps not avail in the android market. THis is a perfect device. Now ... I want to make sure I have a backup of my SD card in case something happens, i can quickly stick a new card in and go. (NOTE: - I bricked my laptop/XP in the process which I have since recovered - - - i said I'm newb...). So I dont care to go back through installing Java, Android SDK, etc.. if I can simply image one card onto another. Particuarly since I have several apps with all my configurations and after taking hours to get this all setup - i simply want to create a duplicate uSD. any help would be GREATLY appreciated... THanks in advance. PS... with everyone creating bootable uSDs my guess is there will likely be others interested in doing the same.
1 - Go to Softpedia.org or equivalent and download FREE Win 32 Disk Imager application (for Windows).
2 - Insert MicroSD card into a USB card reader and insert that into PC USB slot.
3 - Start Win32DiskImager, and make sure that the Disk Letter is the one of your MicroSD card (this step is IMPORTANT!)
4 - Type a name and add .img in the field of the program for an image file name. You can also select a folder on your hard disk using the Browse button.
5 - Click ON READ (not write) and your microSD card will be backed up as an .img file.
6 - Exit
7 - Click on "Safely Remove Hardware" and select the disk letter of your USB reader.
8 - Do it all again, except that:
a - use a blank MicroSD card
b - use the Browse button to select the same .img you created earlier
c - use "WRITE" this time (not read) to burn the .img file to the new MicroSD card.
So, nothing else is needed except a PC with a USB slot, a USB MicroSD card reader (often included free with the card), and Windows (you could even use the stock IE to go to softpedia.org).
Thanks for your quick reply! My hope is my newer higher class card will result in faster performance.
claycourtdad said:
Thanks for your quick reply! My hope is my newer higher class card will result in faster performance.
Click to expand...
Click to collapse
The best way to format an SD card in Windows is a program called "SDFormatter" which is a free product of the SD card manufacturers association, which is at:
sdcard.org
You can download the latest version, 3.0 there.
I'd like to copy the contents on my CM7 on an 8G Transcend uSD card to a Sandisk 8G card using Win32DiskImager on my Win 7 64 bit laptop. I've verified with EASUS that the Transcend is using the full 8G but when I create an image file it's only 4G. If I to write that to the Sandisk the process finishes almost immediately and writes nothing to the card. I've rebooted and tried several different external card readers with the same result. I have successfully used these to create 8G backup images previously so am stumped why the process isn't working this time. Suggestions?
Are you running Win32DiskImager as "Administrator"?
azj said:
I'd like to copy the contents on my CM7 on an 8G Transcend uSD card to a Sandisk 8G card using Win32DiskImager on my Win 7 64 bit laptop. I've verified with EASUS that the Transcend is using the full 8G but when I create an image file it's only 4G. If I to write that to the Sandisk the process finishes almost immediately and writes nothing to the card. I've rebooted and tried several different external card readers with the same result. I have successfully used these to create 8G backup images previously so am stumped why the process isn't working this time. Suggestions?
Click to expand...
Click to collapse
Which version of win32diskimager?
I find version "RELEASE-0.2-r23" to work best... it still always reads to about 4gig... bit it writes the image correctly.
Definitely make sure you're running with elevated priviledges (administrator). These disk imaging programs have the annoying habit of providing very little feedback when they fail due to an accounts rights issue. Took me a long time to figure this out when I first tried to install Phiremod and then again a month later when I decided to try an OC kernel (by this time I'd forgotten about the problem).
dsf3g said:
Definitely make sure you're running with elevated priviledges (administrator). These disk imaging programs have the annoying habit of providing very little feedback when they fail due to an accounts rights issue. Took me a long time to figure this out when I first tried to install Phiremod and then again a month later when I decided to try an OC kernel (by this time I'd forgotten about the problem).
Click to expand...
Click to collapse
Ahhh... as I have disabled profile to prevent the priviledges issue in win7.... I forgot about that requirement.
Jimbo67 said:
Are you running Win32DiskImager as "Administrator"?
Click to expand...
Click to collapse
Yes I ran it on an administrator account. Will have to check the version when I get home.
I had a really old version of the program. Downloaded the current version. It still creates a 4G img file but when I write it back to the new card it's the full 8G image. The contents of the boot partition look correct but the Nook just skips the SD card when booting up.
Next, I'm going to use Easeus to reduce the total used on the card to 4G, image that, write to new card and see what happens.
i have encountered win32image problem before where it fails to write to disk with erorr but when i use earlier version 0.1 it works
Followed these steps and the new card boots correctly:
- Use EASEUS to reduce the last partition so the total used on the card is 4G or less
- Use Win32DiskImager to read old card and write new card
- Use EASEUS to increase the last partition to full size.
Of course this only works if you can do the first step.
As an aside: performance with the new Sandisk card is considerable faster than the old card.
for some reason the new version of windisk imager does not write the image to the card properly for me. i always get corrupt data. i use an older windisk and everything works great. i'm on windows 7 if that makes a difference.
well i followed the instructions here http://forum.xda-developers.com/showthread.php?t=1000957 and the penguin came up and the program did its thing. but after it shuts down, i reboot and it stays on the loading screen. i have a sandisk 2 gb card. what could be my issue?
thanks in advance for any help
bootloop, bootloop and bootloop. Let me out!
Me too!
Do I need to root first? Read something about "clearing the cache"? Does it works? How to do it?
I tried installer 1.3 and CM7 nightly -87, then installer 1.2.1 and stable 7.0.3 and 7.0.2. The latter froze during installation!
Also tried recovery after bootloop.
Even left for hours booting. Nothing.
I am using a Sony 4g SD card Class 4 which I formatted using my Laptop and my Nook. Neither way worked.
I am using Win32 disk imager. The Nook simply won´t start if I use Winimage to mount the SD.
Oh yeah! My NC soft is 1.2.0 and the model (I think) BNVR20.
System partition might be corrupted on the SD card. Make sure you always remove the sdcard SAFELY from your PC.
I've never had a problem just removing the SD card but it is wise to "eject" the drive from My Computer on Windows systems to make sure it closes the files and isn't doing a delayed write.
The microSDHC disk may have something to do with it.
Try to use a SanDisk 8GB class 4 microSDHC disk
(you can get one from Amazon for about $11.00 including shipping).
Either one of these builds should work:
-- system #1 running @925MHz max.
----- generic-sdcard-v1.3.img
----- gapps-gb-20110307-signed
----- update-cm-7.0.3-encore-signed
-- system #2 running @1300MHz max.
----- generic-sdcard-v1.3.img
----- update-cm-phiremod-nook-6.3
Hope that helps and good luck.
Hi,
does it loop the android man and spinning wheel over and over again, or really hangs? Mine was looping the "spinning wheel" - what helped was removing \data\system\batterystats.bin file via ADB.
Regards,
Maciej
Hey Matchay,
In my case it loops the android man and spinning wheel over and over again.
But I don´t know the first thing about ADB. Where can I get it? And what command line should I use?
Thnx.
The thing is, if you didn't have the "USB Debugging" enabled in settings, the effort to install ADB might be in vain. I do not know any more, what the default setting in a fresh CM7 installation is. For instructions, look here http://forum.xda-developers.com/showthread.php?t=910008. If all works, you'll only need to execute "adb shell" and then "rm \data\system\batterystats.bin" afterwards.
I believe the second option could be to use a fake Hitachi Microdrive driver to trick out the USB Card Reader driver and then reach the /data partition of the SD card directly from Windows. Instructions here: http://www.1src.com/forums/showpost.php?p=1010117&postcount=1
Edit: the second option won't work. Windows doesn't know how to access ext2/3 partitions, even if they can be seen in the Disk Manager after installing the fake microdrive driver.
CM7 running now
Okay, so I got it running.
Guess what I did...
come on...
Yes... I changed the SD card.
New SD card. No more problem.
The first SD card I used was a Sony 4g Class 4. I tested it with H2test2 and the writing speed was around 5-6 MB/s (thus a Class 4) but the reading speed was only 11-12 MB/s (baaad Sony, bad!). Then, I tested a older card I had, a Toshiba 2g Class 2, the writing speed was around 2-3 MB/s (thus a Class 2) but the reading speed was 18-19 MB/s (see Sony!).
So I used the Toshiba SD card and everything is running smooth now.
Now, what have we learned from this?
GET A FREAKING SANDISK CLASS 4 before you even start!!
I am using V30B Pure Repack by N00B and just bought a new micro sd card of kingston 16GB class 10.
I put the card into the phone, then connect the phone to PC via USB. I use mass storage mode. Then when I start copying file from PC to my phone, the speed only is 2MB/s write.
I wonder if it is a bad card.
I also did a benchmark and still got about 2MB/s write. I googled and had no clue.