Just want to know if the Desire HD has problems accessing the microSd card (especially if it's a class 6) when connected to a PC in 'Hard Drive' mode
Let me explain...
Firstly - I have a rooted phone with Android Revolution HD (v5.2.3)
I had the original 8Gb Class 2 card that came with the phone, which I swapped with a Kingston 8Gb class 4... had no problems with it.
I could connect up the phone to my PC (Windows XP + SP3) as 'Disk Drive' & copy files back & forth between them with no problems - no matter how large they are or what type
The 8Gb got a 'little full' recently (I filled it with APK Backups,Music ,ebooks & 'comics' etc), so brought a Samsung 16Gb Class 6 from Amazon
I connected up to phone as 'Disk Drive' & copied over the contents of the phone DIRECTLY to the 16Gb (which was in a Card reader) with no problems.. then put the 16Gb into the phone (after unmounting etc safely) & all apps etc work fine.
NOW - If I connect the phone up as 'Disk Drive' to the PC, although I can copy OFF the 16Gb to the PC with no problems,
If I try copying file ONTO the 16Gb (regardless of size/type)... I MAY be lucky enough getting 2-5 files across before XP 'loses' the drive & asks 'Please insert a disk into drive...'
Now I'm pretty sure it's not XP the problem - I can put the 16Gb into a card reader & files copy over with no problems (I've plugged the card reader into motherboard USB, front panel USB and even through a USB Hub)... it only seems to happen if I access the card through the Phone.
Is this because -
it's a Class 6 card...
A problem with the Phone design...
Due to ARHD Rom (if so would updating to the latest version fix this ??),
or is there a way to prevent XP from losing connection ??​Many thanks in advance
I think its a bug in that rom. It does not have anything to do with sd card, if you can, update it or just try any other rom and i am sure it will work.
kaleavi said:
I think its a bug in that rom. It does not have anything to do with sd card, if you can, update it or just try any other rom and i am sure it will work.
Click to expand...
Click to collapse
I may just try that in the future - just don't want to install a new ROM (It'll have to be latest ARHD anyway, as I have a full HTC Navigation licence) & then have to reinstall everything (yet again)
However I can currently get around this little 'problem' by using 'File expert' app & using FTP over my WiFi, as that seems to work OK,... a lot easier than having to remove the SD card each time
But thanks for the suggestion anyway
I can no longer access my SD card from my windows pc when connected by USB. This occurred on the same day that i unlocked my bootloader, installed the java sdk and android sdk.
I have the phone set MSC (mass storage mode) and connect it by USB as I always did in the past.
Windows recognises that something is connected and a new removable drive is created.
In the past my phone would give me the option to connect the memory card, however this no longer happens.
Clicking on the new drive in Windows causes a message box to pop up saying "Please insert a disk in drive..."
No amount of fiddling with usb settings (debugging, MTP, etc) plugging / unplugging or rebooting has made any difference. I've tried reinstalling USB drivers and removing & reinstalling Sony PC companion. I've also tried accessing the sd card from ubuntu in a virtual machine, but that also doesn't work.
I can view the SD cards contents from my phone and through an adb link.
Does anyone have a solution? From extensive googling, the only things i can see that i haven't tried is:
- trying a different cable (which has been suggested but sounds pretty daft to me)
- reformatting the sd card
Any other suggestions? If i do have to format the sd card, are there any good guides or is there anything i need to avoid doing???
Can you read the card from a card reader.
if you can it is then either drivers or the cable
Sent from my LT15i using xda premium
unfortunately i don't have a card reader. I'll give it a try tonight in my girlfriend's phone and with a usb cable and see how that works out.
it will definitely work with a card reader...this problem occurs when usb storage suddenly stops working as soon as usb is connected..i guess best way is to reinstall ROM if the problem persist.
Flashing firmware (global v62) got it working again )
Hi,
I just got my S 10.5 tablet and loving it so far.
One thing though, I cannot seem to write to my Micro SD card (Samsung 32 GB).
I see it on the table and can format it, browse it.
When I connect to my PC, I see the tablet, as a media device that opens to two drives which are browsable but anytime I just try to create a directory, it hangs...
The behavior is same if I switch to Camera mode.
I tried retrieving and installing USB drivers from Samsung site but changed nothing...
I'm getting desperate... My only option is to remove the SD card, mount it on my phone, transfer my files then back on the tab.... ouch...
Thanks
I have purchased a week ago a Galaxy Tab S 8.4 (T705M) and I am using a 64 Gb MicroSD in it.
I upgraded to 5.02 (OTA) since June/26.
I have problems with external MicroSD when the tablet is connected via USB to my PC (Windows 7, Home, 64 bits).
Whe trying to copy files from the PC to the tablet external MicroSD, the operation is very, very slow and some files (existing previously in the external MicroSD) disappear. Very annoying.
I had same problem with another Tab S I purchased by January and I returned it to the vendor. In that case, the tablet was on Kit Kat (as it is sold).
Yesterday, after the Tablet erases several directories from the SD, I turned off the tablet and extracted the SD. I tried to fix the SD directly connected to the PC but the SD appears as "read only".
After trying for a while I gave up and I formatted the SD (extFAT) and copy the info from a backup I did before putting the SD in the teeth (fangs?) of the tablet (yeah, I guessed the tablet would be as a wild beast when managing SD's). The "re"formatted microSD behaved as a charm, all info copied without any problem (but it took almost 3 hours copying 50 Gb at about 7 Mb/second).
On the other hand, I used this same SD card in my old Note 8 (Jellybean) for more than a year without problems.
Now, I guess the only way I have is extracting the SD card and edit its content only connecting it directly to a PC.
What can I do to calm down the beast and edit external MicroSD connecting the tablet via USB without losing information and with a reasonable speed ?
Any suggestion ?
Root your device and apply the sd card fix. Also 7mb/s seems about normal for a cheap micro sd card.
I have not had any problems with files disappearing, have you confirmed your 64gb microsd is not a fake.
I have a Samsung 64gb microsd, and i got around 9MB/s copying a movie from my notebook to my T800 10.5"
John.
Thanks for the comments.
My card is Verbatim Class 10 and it worked perfectly in my old Note 8. It works really as stated for a class 10 SD (10 MB/s at peaks as stated in https://www.sdcard.org/developers/overview/speed_class/) but, as with any device, speed depends on several factors (file sizes, buffer in the source PC, etc) and the average obtained is really about 7 MB/s or so.
I guess the problem is related with something in Lollipop (but Tinderbox says has no problems) or, more probable, driver in the PC.
Tinderbox, are you using Kies to transfer ? are you transferring from a PC or a Mac ? which class is your SD ? have you enabled "USB debugging" ?
I purchased an 8 GB SD in order to make some tests. This SD is Class 4 and formatted FAT32 but anyway I will test it to learn about this riddle....
In the mean time, any suggestions are welcome and I repeat, thanks for the answers.
UPDATE:
Sandisk SD (8 GB, FAT32) worked perfectly, no erases, good speed (Class 4, speed tablet connected via USB about 4 MB/s).
Next test planned: reformat Verbatim 64 GB using FAT32.
I am on kitkat 4.4.2 and i dont use kies, I just drag and drop my files from my notebook to the tablet, I did not need to enable usb debugging, my 64gb is full of video, I copy them virtually every day and have had not problems.
I think i read about another 8.4" owner having problems with his microsd card i will have a look for it.
I have only ever bought Samsung memory cards for years and i have never had a problem.
Have you tried re-installing the device driver, you can do it from the kies menu.
John.
Tinderbox (UK) said:
I am on kitkat 4.4.2 and i dont use kies, I just drag and drop my files from my notebook to the tablet, I did not need to enable usb debugging, my 64gb is full of video, I copy them virtually every day and have had not problems.
I think i read about another 8.4" owner having problems with his microsd card i will have a look for it.
I have only ever bought Samsung memory cards for years and i have never had a problem.
Have you tried re-installing the device driver, you can do it from the kies menu.
John.
Click to expand...
Click to collapse
Thanks for your complete answer(s).
I have made several (a lot) of tests without any success. In all cases SD can not be written from a PC (when connected via USB) and erasing files using android app sometimes cause corruption.
The card is completely readable (a little laggy to begin to work after it was unmounted and reinserted). The card works without errors when connected directly to the PC.
These are the some tests I have made (reformatting and restoring the files between one test and the next, a real nightmare ):
1. Uninstalling Kies
2. Reinstalling Kies (and refreshing driver)
3. Uninstalling Kies and Samsung driver. Uninstalling USB driver and erasing it completely and let windows select the driver
4. Formatting the card in FAT32 via some software
5. Trying to format the card via command in windows (from the console). It takes about one hour and abort near the end with an error messages explaining that windows can not format FAT32 for this capacity
6. Even trying to partition the SD via DISKPART. I can create one primary partition (32000 MB) but DISKPART shows all disk allocated and do not allow to create another partition (either primary or extended)
Last symptom: I erased one file from the root directory of the SD using "My files" (the app preinstalled in the firmware by Samsung). The file disappear but My files shows a ghost file named with special characters.
When the SD is consulted via Root Explorer (an android file manager) or even connected directly to the PC, the ghost file did not show.
@tinderbox: could you remember who (or where do you read about) the other " 8.4" owner having problems with his microsd card " ?
Some body could suggest solution ?
Thanks for any help or guide.
Hi.
You did format the micosd card using the tablet, you cannot format on an computer and then use it in your tablet, the tablet uses it own file system, so you have to format the microsd using the tablet.
John.
Format the card to exFat in windows. It only takes a few seconds to format my Samsung Evo 64gb.
If it doesn't work then your card likely has issues.
Finally success
Thanks for your suggestions.
I tried almost everything:
1. Formatting FAT32
2. Reformatting in the tablet
3. Reformatting in the PC
4. Even formatting using a software from Verbatim website
The problem persists: SD Card is not editable (delete files, write files, edit files) when inserted in the tablet. SD works perfectly in the PC.
Finally I purchased another SD 64 Gb Toshiba Class 10. The SD package says it can work at 40 Mb/sec. The card write at 10 Mb/sec but it reads faster.
This Toshiba card works perfectly. I can erase or move files using android file manager (My Files app), I can write from the PC using tablet connected via USB to the PC. I can create files directly in the tablet (I used Jota+ to create a text file).
Verbatim card and Toshiba card specs seem identical, except by the speed claimed in the Toshiba package. There is some difference I am missing but definitively these cards are not equal (something in the card data bus ?)
I repeat, thanks to everybody who tried to help.
I only ever buy Samsung memory cards for years, and i test every one for errors and i have never found any, And if an Samsung memory card does not work in an Samsung tablet, well it is not going to happen, but people go for the cheap alternative.
John.
Hi everyone, recently I've had 2 problems with my honor 8 pro. The first one is that suddenly, when I connect my phone to the pc and I select mtp the pc doesn't recognize it. It is a pc problem because on another one it works flawlessly. I can make it recognize it with hisuite but it doesn't serve the purpose of transferring files.
The second problem is that suddenly I can't delete files from my SD card.
Does any of you have any idea about one or the other issue?
Sandisk micro sd card? They have a 'feature' that if your card becomes (about to?) defective, it becomes read only.
Check another card to see if it works well.
Actually it's Samsung. I'm gonna try to format it when I get home