Database Users

Sandisk 4Gb read-only on PC

I recently purchased a Sandisk 4Gb microsd card for use with the Tytn II. The card works correctly on the Tytn. I wanted to transfer a large file to the card by means of the card reader sddr-113 that came with the card. I plugged the microsd card into the sd adapter, put the latter into the card reader, and plugged the card reader into the usb port of the PC.
On trying to write the file to the card an error message popped up saying the card was read-only. I double-checked that the read-only tab on the sd adapter was in the correct position to enable writing but the error persisted. I formatted the card on the Tytn but to no avail. Sandisk support does not list any known issues.
Knowing that several users have purchased a similar card for the Tytn II, has anyone encountered such problems, and is there any fix/workaround? Thanks.
EDIT: Note that there is no problem reading files from the card on the PC. Transfer speed in this case seems quite good. MY PC is WinXP.

You might check the microSD adapter. The adapters that are a std sized SD card have the small "read only" switch on the side of the card, you may have bumped it. Mine isn't even labeled, it should be switched forward, towards the gold contacts.
Good luck.

RemE said:
You might check the microSD adapter. The adapters that are a std sized SD card have the small "read only" switch on the side of the card, you may have bumped it. Mine isn't even labeled, it should be switched forward, towards the gold contacts.
Good luck.
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As I said, I checked that the read-only switch was in the right position. That said the adapter may be defective, and I'll try to put the microSd into another adapter. However any news from others with possible the same problem will serve to see if mine is an isolated case or not.

Oops, sorry, yup I'd try a different adapter, they're pretty cheap/fragile. I have only seen this once, on a friends card. The tip is that the native microSd card is writeable in another device so it really points to the adapter.

I am also experiencing this issue with the exact same card & adapter.
GRRR it really take age to copy data across active sync...

Sandisk 2 & 4 GB card
fun_key said:
I am also experiencing this issue with the exact same card & adapter.
GRRR it really take age to copy data across active sync...
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Click to collapse
I had this problem as well. I later found that my PC wanted me to format the card when reading it with the adapter. Luckily my card didn't have anything important on it at the time. When I pulled the card to use it in my Tilt, the new device couldn't read it either.
I was able to use the card & adapter with a program found in a post on this forum to repair my corrupted card.

Can the Advantage use a card reader?

I'm interested in using the Advantage to have as a mini laptop/phone access/gps and camera card backup device.
As such it would be spot on, small enough to fit in my rucksack but usable in the field.
But can you use a USB or other card reader to backup CF cards to the 8/16gb internal memory?
Edit: Just going to change me request, to who has tried a card reader? As i know it "should" work with one but who has?

Works fine on mine, using a cheap sd card reader.

Its CF cards i'm interested in. So i can back up my SLR images to the 8gb internal drive. Do you know if those work?

Well, I said cheap SD reader, but it's actually one of those multi card readers, and it has a CF slot as well. I don't use CF cards so can't test that, but the Athena reads SD, MMC and Sony Pro Duo cards through it fine, so I have no reason to believe that CF cards won't work.

Hokum said:
Its CF cards i'm interested in. So i can back up my SLR images to the 8gb internal drive. Do you know if those work?
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Just read your post so whipped out the 4 in 1 cable and cheapie 25 in 1 card
reader and yes it sees the SD card NO it will not read the 2 gb CF
card from my Axim51v.

bigtsr said:
Just read your post so whipped out the 4 in 1 cable and cheapie 25 in 1 card
reader and yes it sees the SD card NO it will not read the 2 gb CF
card from my Axim51v.
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Click to collapse
I wonder if it could be that the CF cards sucks more power, then if we use a card reader with an external power source, do you think that would work?
...

Ouch, hmm that could be a killer for me. Thanks for looking though its most appreciated.

Well I used the same reader and CF on my host pc and it works fine.
It's either a power issue or because the 7501 doesn't have a driver
relating to the reading of CFs.

The 7501 should read CF cards just fine - it's more likely a power issue or a FAT issue. I've just tested a few of my cards and found something interesting (I'm using the Dopod U1000) - the Athena will only read one external volume at a time. This was tested with a 4GB Sandisk M2 card with Memory Stick adapter, 2GB Transcend SD (SDIO1.0) card, and 1GB Transcend CF card, through two different multi-card readers, and with both the 4-in-1 cable and dock. All of the cards could be read, but only one at a time. A soft reset was also occasionally required.
This was surprising to me, because I once attached three FAT32 external HDDs to a Pocket Loox 720, and damn me if it didn't mount and read all three. Me being the curious type, I put both card readers through a powered hub and attached that to the Athena - same thing, only one card from one card reader could be read at any one time. I tried the same experiment on my Loox, and it also mounted only one card per card reader, but both card readers could be used at the same time. Just for fun, I added a usb flash drive and an independently powered 40GB FAT32 desktop drive in an external case, both mounted and could be read as well - I had Hard Disk 1 through 4 in File Explorer. At a guess, I'd say the one external volume limit is a problem with the Athena's mass storage driver, or something in the registry.
I also tried an 8GB Seagate ST1.2 CF Microdrive which couldn't be read in any configuration, with or without independent power to the card readers - as this card requires much more power than flash based CF, I'm not too surprised. I have an 8GB CF at home I'll try out later.

hishamh said:
The 7501 should read CF cards just fine - it's more likely a power issue or a FAT issue. I've just tested a few of my cards and found something interesting (I'm using the Dopod U1000) - the Athena will only read one external volume at a time. This was tested with a 4GB Sandisk M2 card with Memory Stick adapter, 2GB Transcend SD (SDIO1.0) card, and 1GB Transcend CF card, through two different multi-card readers, and with both the 4-in-1 cable and dock. All of the cards could be read, but only one at a time. A soft reset was also occasionally required.
This was surprising to me, because I once attached three FAT32 external HDDs to a Pocket Loox 720, and damn me if it didn't mount and read all three. Me being the curious type, I put both card readers through a powered hub and attached that to the Athena - same thing, only one card from one card reader could be read at any one time. I tried the same experiment on my Loox, and it also mounted only one card per card reader, but both card readers could be used at the same time. Just for fun, I added a usb flash drive and an independently powered 40GB FAT32 desktop drive in an external case, both mounted and could be read as well - I had Hard Disk 1 through 4 in File Explorer. At a guess, I'd say the one external volume limit is a problem with the Athena's mass storage driver, or something in the registry.
I also tried an 8GB Seagate ST1.2 CF Microdrive which couldn't be read in any configuration, with or without independent power to the card readers - as this card requires much more power than flash based CF, I'm not too surprised. I have an 8GB CF at home I'll try out later.
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Great discovery. Thanks!

hishamh said:
I have an 8GB CF at home I'll try out later.
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I've tried this card with both my card readers - it works just fine. I don't know what's going on with bigtsr's card, but my (flash-based) CF cards all appear to work.

[Q] XD Card Reader???

Anyone have a specific card reader that has worked with XD cards? Going on vacation and my underwater cameras are all XD and would like to be able to view on the A500.. Thanks!
P.S. all of the cards must be FAT formatted... Problem?

@smoothsl.....You might want to look at the "Targus TGR-MSR" I purchased mine in Walmart it was about $13 but I think you can get it cheaper on line. Mine clearly states that it is USB 2.0 and will read/write the following.....XD...Compact Flash...SDHC...SD/MMC...Micro SD...Memory Stick...SDXC. I honestly haven't used it for XD cards, only Micro SD & SDXC but those work perfectly. A note on formatting, if you use the proprietary SD application it may only format it as "Ext" (at least it did for my 64Gb SDXC card) and I found that the A500 wouldn't read or write to it so I had to use Windows to format as Fat32 and this worked fine. On my smaller 16Gb Micro SD there was no such problem.
Hope it helps.

can t you plug onto USB your camera ?
just asking, like with a cable, if yes well you normally will be able to get all picture on the tablet and import them without need of another Card Reader.
Else you need one on USB

Help with Error Code 19 when writing to SD Card.

First of all, I am a newbie. I have searched the boards and can't find the answer.
I am trying to get my Nook Color back to stock so I can return to Barnes & Noble. When I tried to write the TWRP File to my SD Card, I received Error 19, media is write protected. I have formatted my SD card and keep getting the error.
Anyone know a solution?

Is the microSD in an adapter to (for example) full size SD?

SD Card
MISRy said:
Is the microSD in an adapter to (for example) full size SD?
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Yes, I use the Adaptor to put the SD card into my laptop slot.

A) It's always better to use an external reader than a built-in slot
B) There should be a little slidey tab on the side of the SD adapter, slide it to it's other position.

SD Card
MISRy said:
A) It's always better to use an external reader than a built-in slot
B) There should be a little slidey tab on the side of the SD adapter, slide it to it's other position.
Click to expand...
Click to collapse
I tried sliding it to the other position but it didn't make a difference. I bought a new SD card at lunch. I will try it tonight.

Seriously think about one of those $4.99 USB stick adapters as well. You'd be surprised. Just like the magic going to a Sandisk brand uSD card will do, going to an external reader will do the same.

S4 + Micro SD help

hey gang, was wondering about getting some advice on what to do about my sd card...
i bought a sandisk micro sd with its adapter and figured id stock it up for when my s4 shows up... the thing is, it wouldnt mount to my macbook pro, mounted just fine to the macbook air, so i stocked it via file sharing...
but down the road? not really the way i would like to do it, the sd reader works fine on the pro, works with other sd cards...
my question is... in the best opinions, do you all think i should run to best buy, try out a different brand like PNY micro sd and adapter? or another sandisk and see if maybe its just this particular adapter...??
if they dont work, i can atleast return it then just buy the external reader... etc etc
thanks

JL84 said:
hey gang, was wondering about getting some advice on what to do about my sd card...
i bought a sandisk micro sd with its adapter and figured id stock it up for when my s4 shows up... the thing is, it wouldnt mount to my macbook pro, mounted just fine to the macbook air, so i stocked it via file sharing...
but down the road? not really the way i would like to do it, the sd reader works fine on the pro, works with other sd cards...
my question is... in the best opinions, do you all think i should run to best buy, try out a different brand like PNY micro sd and adapter? or another sandisk and see if maybe its just this particular adapter...??
if they dont work, i can atleast return it then just buy the external reader... etc etc
thanks
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Click to collapse
It's probably the adapter, I've never had an issue with mine. another option is to get a usb adapter which is just what i use now

mcmb03 said:
It's probably the adapter, I've never had an issue with mine. another option is to get a usb adapter which is just what i use now
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Reason I speculate adapter is because it works on one but not other.

JL84 said:
Reason I speculate adapter is because it works on one but not other.
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Click to collapse
you're right, it could just as easily be the port on your mac too, so it would still be cheaper to initially try another adapter

Apple store put another sd card, worked just fine... Bought another sandisk and a pny micro. Will test it out later. Hopefully one works.

just plugged in the new Sandisk 32gb micro sd, same exact copy, just a new one... mounted perfectly! that was easy...
mods -- close this thread please!