Database Info

16GB microSD [Class 4]... Error or Scam?

Does anyone know a reason why a 16gb [class 4] would only let 8gb (7.5) be written to it?
It is a Kingston, and I am fairly certain the card is authentic. It indicated a full 16gb capacity out of the box, but got the "cannot copy or create: parameter is incorrect" message when 7.5gb was reached. Tried a format, and now 7.5gb is the recognized figure. At the moment am using a SanDisk ImageMate All-in-One reader (brand new; has a dedicated microsd slot, but will only read it through the SD slot via adapter).
Any thoughts? (and I hope it's not that someone went through the trouble of re-labelling it and programming it to read a false capacity)
Thanks everyone

those traits you mentioned are very viable symptoms for a fake memory card.

-Does your OS recognise it as a 16 GB? My computer -> Removable device -> Properties??-
Sorry misread your post
Have you tried it on another pc and/or with another cardreader (or maybe just with your handset, plug in your sd-card and use it as a cardreader)
Daan

btw, not all readers are capable of reading 16gbs... might want to try another one tho it does sound as if it's a fake

help with apps2sd menu lag.

Ok I have jf 1.5 and a 4gb class 4 memory card.
I used the apps2sd app(the first release) to move my apps to the sd card and everything was working smoothly. I installed maybe about 80 apps and my internal memory plummeted to 32 mb. So then I used the other button on the apps2sd app and moved my dalvik-cache to sd and I gained like 30mb. But now everytime I open the menu there's like a 4-8 second lagg for my icons to pop out. I want to know if there's anything I can move back to the phone that will bring my menu open speed back to normal. Is this possible? Or am I gonna have to reflash my phone and just move my apps and no caches? Or is this just part of me having a class 4 memory card. Cus I know people that have a class 4 and they suffer no performance decrease.
Thanks.
Djbootleg

Can anyone help me out?
Idk what to do.

Wipe----Flash----then use busybox to re-link your apps....
I had to dot hat to my friends phone with a class 2 card and now it works fine.
BTW get a class 6 card they are not that expensive

Is there any command to like move back whatever is decreasing performance?

atlmatt said:
Wipe----Flash----then use busybox to re-link your apps....
I had to dot hat to my friends phone with a class 2 card and now it works fine.
BTW get a class 6 card they are not that expensive
Click to expand...
Click to collapse
How do you re-link with busybox? Cheers.

http://android-dls.com/wiki/index.php?title=Haykuro_Apps_to_SD
Just follow the entire busybox directions and you will be fine...

You should be using a class 6 card and not a class 4. The slowdown is likely related to the slow read speed of class 4.

Rekna said:
You should be using a class 6 card and not a class 4. The slowdown is likely related to the slow read speed of class 4.
Click to expand...
Click to collapse
so you think i should just reflash my phone and just get a class 6 and then move my caches??

bootleg16 said:
so you think i should just reflash my phone and just get a class 6 and then move my caches??
Click to expand...
Click to collapse
Try to get the Paragon Partition Manager. You can make an exact replica of
your sd card on a faster one, and don't have to reflash or wipe!

Try this:
http://forum.xda-developers.com/showthread.php?t=512743

Formatting Memory Card

I just got a 16gb class 2 memory card but it only shows that I only have 200mb. I've tried format the card but it isn't showing anything different. I've tried FAT and FAT32. Any suggestions would be appreciated. Thanks

It's probably a fake. Where did you get it?

I got it from ebay but when I first used it it was fine. Now I can't even see it show up on my computer.

Have you tried rebooting pc? If I do the safe to remove hardware , and then put my card back in it doesn't read....until I reboot.

Ok, I've tried rebooting pc and putting it back in it still doesn't recognize it. Weird thing is is I can put it in my Mac and it reads it fine.

That is weird. Sorry I can't be of more help.

Is it possible that I may have deleted the partition on the SD Card that needs to be there in order for it to work? when I go into recovery and try to flash zip from it it tells me that it cannot mount the sd card.

corybucher said:
I just got a 16gb class 2 memory card but it only shows that I only have 200mb. I've tried format the card but it isn't showing anything different. I've tried FAT and FAT32. Any suggestions would be appreciated. Thanks
Click to expand...
Click to collapse
You said you tried formatting. Did you try formatting on your pc or mac?

I've tried on both and nothing is working

I will get the error message from when in recovery.

corybucher said:
I've tried on both and nothing is working
Click to expand...
Click to collapse
I had the same problem when I partition my card using recovery 1.5.2. I had a 8gb card but it only show 3gb when put it on my pc. I used http://www.sdcard.org/consumers/formatter_3/ to fix it. Maybe it will help you.

E: Can't Mount /dev/block/mmcblk0p1
(or /dev/block/mmcblk0)
(invalid argument)
E: Can't mount SD Card

I have had similar failures with generic memory cards (mine came from Hong Kong and were real looking fakes).
You may be able to repartition the card using a program called Paragon Manager in Windows (note sure if you can get this legitimately free).
Here is a great article from overclockers.com about spotting fakes and what to expect from them (click here):
Fake Memory Cards
From OCAU Wiki
Purpose
As fake memory cards have now proliferated throughout the marketplace, it is important to be able to spot a fake. This page includes methods to spot fakes, and examples of fake cards.
Why should you care?
Inferior quality card - you're not getting what you paid for
No warranty - when the card fails, you're out of luck
Fake cards sometimes have invalid partition sizes, making it likely to fail
It will drive costs of genuine cards up
Spotting a fake
A program called H2testw 1.4 has been written (thanks to German writer Herald Bögeholz and c’t Magazin für Computertechnik) which correctly analyzes and reports a flash drive's true size capacity; letting you know it is a fake.
If you don't believe that, read this article at http://sosfakeflash.wordpress.com/2...standard-in-detecting-usb-counterfeit-drives/
This make life a bit easier!
Presentation quality and differences
First thing to look for is poorly printed labels and material; most fake cards have slight differences from the real deal. Most manufacturers have a page where you can download high resolution pictures of their cards. Below is a list of manufacturer image page links:
Sandisk
Sony
Olympus
Example of fake 1GB Sandisk SD Card
(Click here for high resolution image)
This particular card was also missing a notch, making it quite easy to spot:

Put it in phone, boot into recovery , select partition, then change allocations to 0 for first two options, the it will format remainder to fat 32.

[Q] SD Card Speed/Class Matters!!??

Hello Guyz. This is my first post on any kind of forum and let me go to my problem straight away.
I am using HTC Pico (Explorer) for the last one and half month or so. Obviously the problem is low internal memory. Have tried as many roms as possible to overcome this issue. Found JaggyRom 3.2.1 most suitable when using a2sdgui script and tried installing as many apps as possible. But there is also limit to it. I also tried other CM9/ICS/JB roms out there with int2ext/d2ext+ scripts to actually increase internal memory to 1GB. Even today, I tried Sense 4.0A Build#2 Ver 3 Final, but ultimately they're installed work fine from dev's point of view but my phone is dead slow n I recieve FC msgs alot.
Now my point is that I need to have a look of either ICS or Sense 4.0 but with greater internal memory. Dev guyz are doing great job facilitating nerds like me, but both of the above roms tend to make my phone dead SLOW and I get FC messages a lot many times, since all the data is moved to SD-EXT. Developers have claims of running these roms smooth, but plz put me wise here in this issue. I just wanted to ask a simple question:
1. Does my SD card's speed/class really matters? (btw I've 2GB microSD with 1GB SD-EXT partition, and I don't know its speed/class )
2. My HTC Explorer is rooted, super user capable (as I've learned alot during this one n a half month to do this )
3. Please suggest me what to do here (actually I'm tired of flashing ROMS now )
Regards.

1. The higher class is, the faster sd card is.
2-3. I'm on cm9 build #8(too lazy to update it ) with sdcard a-data class 10 with 1GB external partition using mounts2sd. Working fine .
Sent from my HTC Explorer A310e using xda app-developers app

Well, the answer to your question is kinda hard to understand, please read it carefully, as I spent time typing it here .
1/ Yes, card speed really matter, but it's not the class that matter. Class rating is for sequential write speed. For Android, what matters is random small-burst write speed. Read the first post of this thread http://forum.xda-developers.com/showthread.php?t=1005633. To successfully utilize your card, you must understand what you want to put on it.
An Android app normally have 3 parts: app (main apk), dalvik-cache, and data (your app's data like account, save game). app and dalvik will make use of sequential write/read speed, but data will benefit from random small-burst read/write speed.
Your internal memory is optimized for both type of read/write (that's why they're expensive like hell), while normally, SD cards are optimized for sequential read/write. Read again about the scripts you use, you will find that scripts that seem suitable for you have: app & dalvik on SD, data on internal. With data on internal, you will have a limit, because some apps use a lot of space for data.
Those scripts that make your internal memory become 1GB simply mount the SD-ext partition as internal memory, so everything is on SD cards, and the slow random write speed cripples your system.
Your best bet now is to try some configurable script like m2sd (I personally highly recommend it), have some patient setting it up, with app and dalvik on SD, leave data on internal, and you're good to go.
Use this link http://forum.xda-developers.com/showthread.php?t=1342387 to learn about m2sd if you're interested.
You should consider buying a fast card like Sandisk Ultra, they're not expensive. Remember to go with Sandisk (class 6 and up) when you're with Android. Some people also report that Samsung cards have great random write speed, and they're on sale more often than Sandisk (just avoid the Plus series). When you buy cards, always look for some benchmark about it's random 4k write speed.
And even with a fast card, I think you should still leave data on internal, data on SD put a heavy burden on your card, which can decrease it's lifespan soon.
I hope you read to this line, the post cost me more than 30 minutes . I just want to help :highfive:.
I attached the m2sd zip that I am using. And if you trust me, try MiniCM9 http://forum.xda-developers.com/showthread.php?t=1958152, it's great. Use it with Nova launcher, and you will be amazed at the smoothness that our weak phone can deliver :highfive:.

I think you should use Nextgen rom because it had mount2sd script preconfigered and you wont have any problem
Sent from my HTC Explorer powered by Nextgen v1.5

Awesome Reply!!
redguardsoldier said:
Well, the answer to your question is kinda hard to understand, please read it carefully, as I spent time typing it here .
1/ Yes, card speed really matter, but it's not the class that matter. Class rating is for sequential write speed. For Android, what matters is random small-burst write speed. Read the first post of this thread http://forum.xda-developers.com/showthread.php?t=1005633. To successfully utilize your card, you must understand what you want to put on it.
An Android app normally have 3 parts: app (main apk), dalvik-cache, and data (your app's data like account, save game). app and dalvik will make use of sequential write/read speed, but data will benefit from random small-burst read/write speed.
Your internal memory is optimized for both type of read/write (that's why they're expensive like hell), while normally, SD cards are optimized for sequential read/write. Read again about the scripts you use, you will find that scripts that seem suitable for you have: app & dalvik on SD, data on internal. With data on internal, you will have a limit, because some apps use a lot of space for data.
Those scripts that make your internal memory become 1GB simply mount the SD-ext partition as internal memory, so everything is on SD cards, and the slow random write speed cripples your system.
Your best bet now is to try some configurable script like m2sd (I personally highly recommend it), have some patient setting it up, with app and dalvik on SD, leave data on internal, and you're good to go.
Use this link http://forum.xda-developers.com/showthread.php?t=1342387 to learn about m2sd if you're interested.
You should consider buying a fast card like Sandisk Ultra, they're not expensive. Remember to go with Sandisk (class 6 and up) when you're with Android. Some people also report that Samsung cards have great random write speed, and they're on sale more often than Sandisk (just avoid the Plus series). When you buy cards, always look for some benchmark about it's random 4k write speed.
And even with a fast card, I think you should still leave data on internal, data on SD put a heavy burden on your card, which can decrease it's lifespan soon.
I hope you read to this line, the post cost me more than 30 minutes . I just want to help :highfive:.
I attached the m2sd zip that I am using. And if you trust me, try MiniCM9 http://forum.xda-developers.com/showthread.php?t=1958152, it's great. Use it with Nova launcher, and you will be amazed at the smoothness that our weak phone can deliver :highfive:.
Click to expand...
Click to collapse
That is a great and dedicated reply ..... thanks redguardsoldier . Moreover I didn't understand the part where u say 4k write speed!! Don't these microSD cards write at speeds of 2 to 10 MB/s??? Or you are talking about random short read/write bursts!!!!
And as per your guidelines this what I have to do:
1. Buy a fast cast like Sandisk Ultra class 6 or up (I hope its microSD and not microSDHC kinda thing!!) or Samsung (except Plus series)
2. Use the m2sd script.
3. Use the following settings:
a. "data" on INTERNAL
b. "app" & "dalvik" on SD (and by SD you mean SD-EXT!!!)
4. And use miniCM9 though
I again appreciate your concern and grateful for taking out some of your precious time. Hope to listen from you again :good:
Regards

vikingmax said:
That is a great and dedicated reply ..... thanks redguardsoldier . Moreover I didn't understand the part where u say 4k write speed!! Don't these microSD cards write at speeds of 2 to 10 MB/s??? Or you are talking about random short read/write bursts!!!!
And as per your guidelines this what I have to do:
1. Buy a fast cast like Sandisk Ultra class 6 or up (I hope its microSD and not microSDHC kinda thing!!) or Samsung (except Plus series)
2. Use the m2sd script.
3. Use the following settings:
a. "data" on INTERNAL
b. "app" & "dalvik" on SD (and by SD you mean SD-EXT!!!)
4. And use miniCM9 though
I again appreciate your concern and grateful for taking out some of your precious time. Hope to listen from you again :good:
Regards
Click to expand...
Click to collapse
4k random write speed mean the speed that the card is capable of writing small blocks of 4kB each at random location . I talked about "random short read/write bursts" :good:.
About the microSD/SDHC/SDXC, that's just the type of size . It makes me confused at first :highfive:. Well, a long time ago, when cards are just 256MB, or 1GB each, they are microSD. microSD have the maximum size of 2GB. When the 4GB cards come out, they are called SDHC . And now, those hugh 32GB and 64GB cards are called SDXC.

redguardsoldier said:
4k random write speed mean the speed that the card is capable of writing small blocks of 4kB each at random location . I talked about "random short read/write bursts" :good:.
About the microSD/SDHC/SDXC, that's just the type of size . It makes me confused at first :highfive:. Well, a long time ago, when cards are just 256MB, or 1GB each, they are microSD. microSD have the maximum size of 2GB. When the 4GB cards come out, they are called SDHC . And now, those hugh 32GB and 64GB cards are called SDXC.
Click to expand...
Click to collapse
Thanks for your reply.. Helped me a lot too. What are your views on int2ext + or ungaze scripts?
Sent from my HTC Explorer A310e using xda premium

Possible fix for random reboots! (Poll: What's your Micro SD file system?)

Resume: Use FAT32 when formatting External Micro SD Card and, preferentially, format using the device storage options.
==========
Hi there, guys! After trying hard to discover why and solve some random reboots I found out, after reading about SD Cards causing issues on other devices, something that may help anyone facing this.
When I bought for my Note 3 I also bought a Kingston 32 GB Micro SD Card and formatted it using Windows 7 to exFAT System File, since it was the default option. After facing some hangs, force closes and random reboots for some days, yesterday I decided to make a complete backup and format it using Note 3 itself.
After this what I noticed, when restoring files on Windows, is that the device formatted it to FAT32 System File. And, since then, everything is working nice, without force closes, random reboots or hangs. I know maybe it's early to confirm anything, but I'm confident that running my SD Card on exFAT was giving me trouble!
By the way, I decided to create a poll asking which System File we, Galaxy Note 3 owners, use. We may create a balance and find out if any format is creating any trouble in general.
Cheers!

When you're recording 4K video, maybe you will need NTFS format for files over 4gb..
Sent from my iPad using Tapatalk

MILJANN said:
When you're recording 4K video, maybe you will need NTFS format for files over 4gb..
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
But there is a limit of 5 minutes, if I'm not wrong. Maybe it is because of the file size limitation, for people using FAT32, since it's the default File System the device chooses when formatting Micro SD.
By the way, I didn't record anything in 4K yet, so I don't know which is the maximum file size we can get. Will test here...

MILJANN said:
When you're recording 4K video, maybe you will need NTFS format for files over 4gb..
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
exFAT supports up to 16EB files in size. That's Exabyte.
You could record a whole month non-stop in 4K and not exceed the filesize limit.
Not all android devices support NTFS by default.
I use Fat32 on my MicroSD, which is rather annoying as I want to have blurays on it, but I can't bebothered to reformat all 64GB and copy it all back. So I just keep all 4GB+ files internally, seems to work fine. (Everything possible is on my MicroSD so I have 22GB free internally.)

ShadowLea said:
exFAT supports up to 16EB files in size. That's Exabyte.
You could record a whole month non-stop in 4K and not exceed the filesize limit.
Not all android devices support NTFS by default.
I use Fat32 on my MicroSD, which is rather annoying as I want to have blurays on it, but I can't bebothered to reformat all 64GB and copy it all back. So I just keep all 4GB+ files internally, seems to work fine. (Everything possible is on my MicroSD so I have 22GB free internally.)
Click to expand...
Click to collapse
By the way, I almost forgot the huge internal space and I previously formatted Micro SD using exFAT imagining the day I would put a bigger than 4 GB video file, like once I needed in the past.
Great tip you gave!
Edit: Further, we need to remember that with Note 3, different from Note II, we can again put apps on external storage!

Tried it in the pool. My sd card and my phone are now broken

nakedtime said:
Tried it in the pool. My sd card and my phone are now broken
Click to expand...
Click to collapse
:laugh:
Send From My Samsung Galaxy Note 3 N9005 Using Tapatalk

When you record 4k its sent to the internal memory which is ext4.
Sent from my SM-N900W8 using XDA Premium 4 mobile app

zanzee said:
When you record 4k its sent to the internal memory which is ext4.
Sent from my SM-N900W8 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Are there problems by formatting the external card to ext4 too? Don't. Have. A. microSD. Card. Yet. To. Try. It. NOW! arghhhhhh!
EDIT: no need to try, it doesn't work on stock roms.. Nice Google! Really nice!

I used the following command to convert a fat32 external drive to ntfs without losing data: Convert H: /FS:NTFS in command prompt, where H: would be your microsd card's drive letter when used in a Vista+ windows environment and a card reader. Can't guarantee data loss ofcourse so a backup would be wise.
Sent from my SM-N9005

I have a Samsung 64 GB micro SD. It came already formatted with ExFat and fortunately so far so good.
A few years ago I had a faulty card reader for pc. My camera could not recognise the SD card and my phone had random reboots with a micro SD after formatting. It is a possibility.
I don't understand much about this topic and I have not formatted with windows in a while, but I remember I could choose among several parameters (something like block size?). My point is that maybe the note 3 requires a different set of Exfat parameters than windows default ones to work well
It is just an idea.
iiSo say we all!! From my Note 3 (N9005)

nakedtime said:
Tried it in the pool. My sd card and my phone are now broken
Click to expand...
Click to collapse
Don't blame me about this. Blame SwiftKey keyboard auto correction! hahahahaha
cyriacus said:
I used the following command to convert a fat32 external drive to ntfs without losing data: Convert H: /FS:NTFS in command prompt, where H: would be your microsd card's drive letter when used in a Vista+ windows environment and a card reader. Can't guarantee data loss ofcourse so a backup would be wise.
Sent from my SM-N9005
Click to expand...
Click to collapse
That's great! Didn't know that this was possible without needing to format the whole card.
inolvidable said:
I have a Samsung 64 GB micro SD. It came already formatted with ExFat and fortunately so far so good.
A few years ago I had a faulty card reader for pc. My camera could not recognise the SD card and my phone had random reboots with a micro SD after formatting. It is a possibility.
I don't understand much about this topic and I have not formatted with windows in a while, but I remember I could choose among several parameters (something like block size?). My point is that maybe the note 3 requires a different set of Exfat parameters than windows default ones to work well
It is just an idea.
iiSo say we all!! From my Note 3 (N9005)
Click to expand...
Click to collapse
Well, the point is that I was experiencing a lot of random reboots here and didn't get no one since I used the device itself to format micro SD again.
I don't remember in which file system my Kingston 32 GB Micro SD came by default, but I used Windows 7 to format it on exFAT.
Probably the device itself formats the card the way more compatible possible, bringing stability.
By the way, since a lot of people already voted for exFAT and didn't tell anything about random reboots or issues, maybe this is not a real issue related to all exFAT, but maybe it is for people who used Windows (like myself) to format micro SD.