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My 4GB Micro SDHC memory card isn't detected by the computer

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I need some help. The problem is this: i have a desktop pc with Windows Vista which has a memory card reader (with SD). Then, I want to copy some documents and other files to a 4GB Micro SDHC memory card which I use with my HTC P3300 but, at some time ago, it passed almost 5minutes so the computer would read the memory card (what I think it's to much because I have a Nokia 2 GB card which takes less than 10seconds to read).
The last week it started not to read the memory card, this is, when I put the 4GB memory card in the memory card reader of my desktop it won't read the memory card!!! Now I can't transfer things to it (because ActiveSync doesn't go on on my PC)!
Is there anyone who can help me? I would appreciate...
Thanks.

How old is your reader?
for instance, my old reader doesn't read HC...

most older sdcard readers dont support sdhc
a few have firmware upgrades for the readers but most dont

some readers can't even be upgraded...
you should check your reader.. go to the manufacturer's website and check if it has a firmware upgrade.

I just don't know who is the manufacturer of my memory card reader... I just know it has a SD reader, MS/MS-Pro reader, CF/MD reader and a SM reader... It came with the computer when I bought it and that's the reason why I don't know its manufacter. Can someone help me?

dude.. there are new card readers which read SDHC.. they cost like 10-15$
go for it
unless you know manufacturer this is beyond help.
(last thing i can think of is that you go to to control panel/system/device manager and look it up to see if the company's name is stated)

Or you can use somthing like WM5Storage as far as I know, you don't need AS running on your PC
with a little luck, you can just plug in your ppc to usb an can access your Storagecard via "My Computer/Explorer"
both work fine for me (and my TyTN with 4GB SDHC

Oh, thanks! I'm just gonna try it... Then I'll reply...

It really works! Thank you very much!

But WM5torage is slower than writing to the card directly (correct me if I'm wrong).
I had (have) the same problem.
My notebooks internal card reader doesn't recognize my 4GB card as well when I run Windows XP.
If I boot Linux it works like a charm...
Looks like a driver issue (at least in my case) but I haven't found a working one yet.

I've allready noticed it... but it doesn't matter... I just have to wait some more time...

I've allready noticed it but it doesn't matter, I just have to wait some more time...

that could depend on the usb connection my Hermes/TyTN just have USB 1.1 and my Cardreader USB 2.0 .. so the cardreader is much fuster

Future memory?

I hope we get some form of internal memory other than a microsd, this would be really sweet
Think your mobile device couldn't eat another byte, that it's stuffed full of storage? Surely it has room for a tiny little thin SSD? This is Sandisk's solution for storage in portable devices, the creation of a new class of storage: integrated SSD, or iSSD. Designed to be soldered right onto a motherboard, this drive is the size of a postage stamp, weighs the same as a paperclip, and will be available in sizes ranging from 4 to 64GB. Read and writes clock in at 160MB/sec and 100MB/sec, respectively, plenty fast enough to run a full OS, with an SATA interface ensuring broad compatibility.
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Source:http://www.engadget.com/2010/08/18/sandisks-64gb-integrated-ssd-is-no-bigger-than-a-wafer-thin-min/

I read about this but dont we have 16 gigs of internal storage?

shep211 said:
I read about this but dont we have 16 gigs of internal storage?
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We do have 16gb of "internal storage" about 3gb for the os, and 13gb to be used freely.
The internal storage, is "internal" in the sense that it functions as the "hard drive" for the device, but it's not a "true" internal, but just a MicroSD card.
There are the possibilities for MicroSD card to be fast (like class 6), but most of the time, dedicated ssd memory types are faster.

The Samsung Galaxy S also has 1gb of ROM. Which is not just an internal SD.

Our internal storage is NOT MicroSD - samsung calls it that to differentiate it from the OS ROM and the External SD. Until someone evaluates the Chip layout we won't know what we have other then "16 GB of internal storage".
Is it one chip partitioned? Is it 2 chips - one for OS that is fast, and one slower chip for data?
MicroSD is form factor - and we know we don't have that as there is no slot with a card in it (other then the external one).
We may have one big 16GB NAND Chip that Samsung did some goofy partitioning with - no one knows yet.
The story from the OP - deals with PCs and Laptops - the chip has a SATA interface so the Bios and OS see it as an HDD - not really relevant with a phone that is more of an embedded system.

issues with 32 & 64gb micro sd card

Hi! all. I intend to buy a Sandisk 32gb class 10 UHS1 rated microsd card. read on other tech forums that such UHS1 rated cards are having issues writing to the tablet regardless of formatting it to FAT32 or NTFS. only way of copying files is using a card reader instead of writing directly to the card via the tab or via the cable. is this true? Is there any thing i should look out for when i buy microsd card? some say that class 10 is not supported or not required. class 4 or class 6 is sufficient. Currently i'm using a 16gb microsd card & its working fine.

yes don't buy a class 10 card it will not work.
class 6 is fine.
Theres a big topic on these forums about it.

Zenin said:
yes don't buy a class 10 card it will not work.
class 6 is fine.
Theres a big topic on these forums about it.
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Nonsense, I am using a 32Gb class 10 high speed memory card without ay problems. Even when copying 4Gb & larger blu ray movies onto the card it reads & plays without any problem...
Use a memory card reader when copying large files as it's far quicker than using a usb cable.

kanej2006 - have you had success with a class 10 64 gb card?
I was told the P6800 and the class 10 - 64 gb card did not work well. that is good news if it does work.

Recently, I had similar problems with a 64 GB class 6 sd card.

Both 32 & 64gb cards should work. Recently I bought a 32gb memory card and it wouldn't format.
It appeared faulty & I returned it. Once the new card arrived, I inserted it in the phone, formatted it & it's both reading and working just fine...
Unfortunately there are quite a large amount of faulty memory cards, try replacing the card or using an alternative brand...

i am using sandsk 64g sdxc class 10 formatted with ntfs. wanna share my experience
bad experience before: copy a 5g movie file via usb kies - one sdxc dead
current procedure: take out the card. copy big size files via sdxc card reader. so far so good.
i doubt the tf slot of p6800 originally supports sdhc only.

Proof a 32Gb class 10 card works.
Ps. You need an app such as Ntfs SD to mount the card so it will read. The program requires root access.
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[I9001][Q]Sandisk Ultra Class 10 microSDHC 32GB incompatible?

Hallo,
i've bought a Sandisk 32GB microSDHC and it doesn't run properly. It unmounts/vanishes after some seconds or crashes/freezes the whole OS (Android) if accessed. Same happens in CWM5/6. The card does work properly in Windows though (speed/reliable). Another Sandisk 16GB class4 works properly in the phone.
Anything known about incompatibilities regarding this card? Anyone using it without problems?
Sandisk Ultra Class 10 microSDHC 32GB
(SDSDQU-032G-U46A)
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I have the same card and it is perfect on my Galaxy S

Thanks.
Anyone else with explicit confirmation on S Plus (I9001)? Seems to have a different controller.

I think it's your rom (if not using stock) because i had same problem on some rom-s
Sent from my GT-I9000 using xda premium

Possible.. but i had this on CWM5/6 as well. Exactly the same issues. Just vanishes with i/o error. In the end a hotswap insert completely corrupted my system partitions (/system, /data at least). The card has been returned. Looks more like a UHS first generation bug or something to me. Maybe they run it out of specs on purpose to get better benchmarks. I don't know. At least I've found other people with same experiences on Google and Amazon that occur on that Sandisk cards.

Also got same card and works fine without any errors. Maybe the sdcard voltage is set too low in kernel or rom

I have the same card and works also perfect.
Running Stock Rom and no errors.
kind regards dekker

Have you tried formatting it with android under settings>storage?
Sent from my GT-I9000 using xda premium

If somebody have problems with SD Cards on Galaxy S than its Sandisk. I use Samsung SD Cards and have never any problems.

I got the same problems and after 3 months of usage the card died and I RMAed it. So be carefoul not to store any extremely valuable data.

sandisk ultra 32gb error on s4
i have galaxy s4 16gb with sandisk ultra microSD HC 32gb. after used a few hours my microSD card can't play video, can't open music or pictures thus can't delete the files. try to format it from options -> storage. it says blank sd card, but it's readable when i open it with windows7. try formatting from windows7 but the problems occured again after a few hours ( seems the problems occured when i tries to play large HD video clip, about 1920 x 1080 pxl video resolution ). is this error caused by sandisk or my galaxy s4 can't work with 32gb card ?

Problem is that Windows doesn't format SD cards properly, just good enough for its own purposes. Download the SD formatter from the SD consortium, and then do a full wipe. Your card now is really formatted as it should, and try again on your phone

Not necessary, I had similair issues as the OP and according to HD Tune my SD was heavely damaged..

query about memory card size

hi all,
i recently purchased infinix zero turbo 2023 , which has a micro sd card, the phone’s spec says it supports micro sd card upto 256 gb , i want to use 1tb micro sd card would that work, has anyone tried adding memory card higher than what the phone’s spec says , what has been your experience
thank you

Doesn't work: 256 GB is maximum.

I doubt you will find member that has tried, so just try yourself. check /proc/filesystems if exFAT is listed. as long as the phone supports the SDXC standard it may work up to 1 TB, as the address is within range.
0x3FFFFFFFFF = 256 GiB
0xFFFFFFFFFF = 1 TiB
the limitation is maybe just at time of writing the specs there wasn't simply such large SD cards on the market.
so it's tial & error.

pro9964 said:
hi all,
i recently purchased infinix zero turbo 2023 , which has a micro sd card, the phone’s spec says it supports micro sd card upto 256 gb , i want to use 1tb micro sd card would that work, has anyone tried adding memory card higher than what the phone’s spec says , what has been your experience
thank you
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No you cant, you can just use sd cards which is 256gb or less in size also if you want more storage try cloud storage

I'm sure it would work fine! Might need to format it first in Android settings, I used to have a ps3 with a 2tb HDD (supposedly not supported at the time)
Never use cloud BTW store your data locally so its literally in your hands not some stranger.

pro9964 said:
hi all,
i recently purchased infinix zero turbo 2023 , which has a micro sd card, the phone’s spec says it supports micro sd card upto 256 gb , i want to use 1tb micro sd card would that work, has anyone tried adding memory card higher than what the phone’s spec says , what has been your experience
thank you
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Incorrect: Phone supports microSDXC cards
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what basically allows you to format them as exFAT - a filesystem developed by Microsoft - and what can hold data up 2 TB.
Take note that it's up to OEM's discretion if they include exFAT driver in their kernel (and executables in userspace) after having an agreement with Microsoft or their partners. So check whether phone's Android can handle exFAT or not. AFAIK only some Samsung phones can.