Problems with Galaxy Tab OTG - Galaxy Tab 7.7 General

I got myself a Galaxy Tab OTG connector so as to read SD cards or usb flash drive.
However when i tried to connect the usb flash drive for the first time, it was working fine ! but i was kinda excited and i forgotten to unmount the drive the right way...
Since then ... my galaxy tab 7.7 cannot read any other usb flash drive at all ...
anyone know what is causing this to happen ?

jolvin said:
I got myself a Galaxy Tab OTG connector so as to read SD cards or usb flash drive.
However when i tried to connect the usb flash drive for the first time, it was working fine ! but i was kinda excited and i forgotten to unmount the drive the right way...
Since then ... my galaxy tab 7.7 cannot read any other usb flash drive at all ...
anyone know what is causing this to happen ?
Click to expand...
Click to collapse
Did you restart you Tab and try again?

jolvin said:
I got myself a Galaxy Tab OTG connector so as to read SD cards or usb flash drive.
However when i tried to connect the usb flash drive for the first time, it was working fine ! but i was kinda excited and i forgotten to unmount the drive the right way...
Since then ... my galaxy tab 7.7 cannot read any other usb flash drive at all ...
anyone know what is causing this to happen ?
Click to expand...
Click to collapse
See the separate thread titled 'USB flash drive connector problem' in the General sub forum. If re-booting or re-formatting the card doesn't work then another poster has provided a link to a lower level formatter that worked for another poster with similar problem. Let us know how you go. Cheers

Related

my iconia cant detect all external HDD i tried (about 10)

hi...
as the title...
who all are succeded in connecting usb external hdd to iconia ?
cause i tried with two, and booth are not recognized
one is pendrive sense 320gb, second is wd 250gb
all you who can connect, whats your hdd??
fyi, i can connect card reader and usb thumb drive
UPDATE
OKEY..
so i tried connecting my hdd through a powered usb hub, and still no luck,
i tried connect it with a Y cable, one to iconia and onte to powered hub, also no luck ...
is there any other way to try ? tried every thing from usb mount all, ntfs mount, charging while plugging , usb powered, new HDD, fat32 formatted , ntfs HDD and all in vain...
if not then, i am sure my device is defective of something....
How were they formatted? At those sizes, I'm going to guess they were formatted to NTFS which Android cannot read natively. There is, however, a thread in the Development section which includes a driver to enable NTFS support on the A500.
FloatingFatMan said:
How were they formatted? At those sizes, I'm going to guess they were formatted to NTFS which Android cannot read natively. There is, however, a thread in the Development section which includes a driver to enable NTFS support on the A500.
Click to expand...
Click to collapse
the first one have fat32 and nts partition, but the second one have 250gb full of fat32
i have installed ntfs mount and usb mount all, they just are not detected at all..
I just got my tab today, rooted and installed ntfs mount. No problems getting into my 500gig external hdd, formatted in ntfs.
Sent from my A500 using Tapatalk
I tried both 320gb Seagate and 750gb passport worked fine...They both formatted in fat32.
HM.. IT SEEMS , ONLY I CANT Get my hdd TO WORK IN ICONIA...
wonder why
is anyone here in asia or may be in indonesia??
may be this is rom related ?
l live in china ,very far from you .....
i still wait for the 3.1 update.
i am not sure can i receive ota update if i root it.
so i dont root ,and still wait.
well ,if i get the update of 3.1 ,i will come back and reply .
i have a 2T hdd, buffalo.
Okey... So now i have tried at least 6 different hdd and all failed...
I start to think ut is my hardware or rom problem?
Any solution ?
When i first connected a hdd i also thought it didn't work. When i looked at mnt/usb_storage.........no filelist. But when i got a cup of coffee and looked again the filelist was there. Apparantly the Acer needs a time to scan the HDD which can be long when it is large. So l'lle patience.
Sent from my A500 using Tapatalk
urbie47 said:
When i first connected a hdd i also thought it didn't work. When i looked at mnt/usb_storage.........no filelist. But when i got a cup of coffee and looked again the filelist was there. Apparantly the Acer needs a time to scan the HDD which can be long when it is large. So l'lle patience.
Sent from my A500 using Tapatalk
Click to expand...
Click to collapse
how long actually ??
becauuse if this problem persist, i think i will take my device to the service centre,
btw, do they will know that i am rooted ?
last update : i have connected my hdd to iconia for about an hour without any luck,.
come on, do some one here can make a solution for me please ??
i can connect flash drive and card reader but not hdd, tried 6 different of them
even i asked in local acer forum in my country, everyone dont have problem...
so, what you think my problem here?
do i must do factory reset ?
interqd said:
HM.. IT SEEMS , ONLY I CANT Get my hdd TO WORK IN ICONIA...
wonder why
is anyone here in asia or may be in indonesia??
may be this is rom related ?
Click to expand...
Click to collapse
Are you sure you have power (external) going into your HD? I tried a WD portable and it wouldn't be read by the A500 until I connected it to an external power supply. Then I could read it without any problems.
iCurmudgeon said:
Are you sure you have power (external) going into your HD? I tried a WD portable and it wouldn't be read by the A500 until I connected it to an external power supply. Then I could read it without any problems.
Click to expand...
Click to collapse
how to connect it with external power supply ?
my hdd has only 1 usb slot, not 2 ..
Guy's....just download (HP USB Disk Storage Format Tool) to format your HD's to fat32. I did my 250 & 500GB HD and it work just find. Windows just don't format right...that's why I don't use windows to format my HD's. If you have Linux use Gparted.
I have
http://forum.xda-developers.com/showpost.php?p=14129262&postcount=8
I also have a 250gb that I can't get to read but then it needs dual-powered cable to be read on my laptop so I expected that. But my 320gb Buffalo, my 32gb Patriot and my 80gb Maxtor read just fine. All are NTFS. I have a 160gb from work that I will try tomorrow.
Connect it to windows and pull up the disk administrator (where you create partitions) and see if the disk is basic or dynamic? Just a hunch... have you tried different cables? And finally I want to be sure you are plugging it into the full sized USB pert and not the micro USB.
Sent from my A500 using Tapatalk
Euclid's Brother said:
Connect it to windows and pull up the disk administrator (where you create partitions) and see if the disk is basic or dynamic? Just a hunch... have you tried different cables? And finally I want to be sure you are plugging it into the full sized USB pert and not the micro USB.
Sent from my A500 using Tapatalk
Click to expand...
Click to collapse
i am using mac, not windows, my hdd connect fine to mac, how to do this on mac?
not only different cables, yesterday i went to an it mall, there i tried almost 5 different 500gb hdd 2.5 inch, all failed, all have fat32 format, cause i checked them on my mac beforehand
yeah, of course i connect it to the usb 2.0 port..
this is what i dont understand, everyones hdd work fine in the iconia, why my iconia just cant read?
mine don't work either. I have a 1 TB western digital hard drive.
i use ntfs mount,first time install that ntfs mount apk...cant read my hdd but aftter reboot my iconia all partition on hdd can read and walk normal like on my laptop
I'm in Jakarta, so I don't think it can be a rom thing. Are you using NTFS mount, or just trying to plug the HDD into your tab and use the built-in software? Try this and it should fix the problem.

usb drive not recognized - help please :(

Hi
I've been using my Galaxy S as usual but today the phone/computer wont recognize it's connected as mass storage or kies.
There is no option on the phone to mount as it did before , all that pops up on windows 7 is usb drive not recognized
I searched on google and tried various things such as :
-USB debugging on and off
-Removing battery
-Trying different cable
-Trying different computer
-Factory data reset
-Formatting internal SD card
-Switching Laptop on + off/restarting
-Uninstalling/reinstalling drivers + Kies
I use the standard launcher and havent changed anything up to the point when it was working.
Does anybody have any suggestions. Im pretty sure its still in warranty however i purchased new on ebay last year so im not sure how all this warranty stuff works.
Do you use an external sd card? If so try this: put it out, turn phone off and on and try once more to connect
Sent from my GT-I9000 using XDA Premium App
hofinho said:
Do you use an external sd card? If so try this: put it out, turn phone off and on and try once more to connect
Sent from my GT-I9000 using XDA Premium App
Click to expand...
Click to collapse
You are a star !!
It works thank you so much BUT when i disconnect and reconnect i have the same problem so it's definetly a workaround but not a fix (
reefy said:
You are a star !!
It works thank you so much BUT when i disconnect and reconnect i have the same problem so it's definetly a workaround but not a fix (
Click to expand...
Click to collapse
Yeah i think your external sd is ether corrupt or broken. i bet if you leave it out completly the phone gets recognized as it should.
Save your external sd data on pc (if you havent already) wipe your external sd and see if it works
If not you unfortunately have to buy a new one, at best from a different brand.
Some sd cards cause problems on sgs
Sent from my GT-I9000 using XDA Premium App
Friend had similar issue with a 32gb ex-sdcard
hofinho said:
Yeah i think your external sd is ether corrupt or broken. i bet if you leave it out completly the phone gets recognized as it should.
Save your external sd data on pc (if you havent already) wipe your external sd and see if it works
If not you unfortunately have to buy a new one, at best from a different brand.
Some sd cards cause problems on sgs
Sent from my GT-I9000 using XDA Premium App
Click to expand...
Click to collapse
appreciate your response thankyou.
I will try another SD card tomorrow and see if that is the cause.
thanks again
n00dles said:
Friend had similar issue with a 32gb ex-sdcard
Click to expand...
Click to collapse
Appreciate your input thanks
Just an update on this:
Tried it without an SD card still the same problem
Tried it with formatting the SD and a another SD card - still the same
and now kies fails to connect sometimes too. Im beginning to think its more the phone.
reefy said:
Just an update on this:
Tried it without an SD card still the same problem
Tried it with formatting the SD and a another SD card - still the same
and now kies fails to connect sometimes too. Im beginning to think its more the phone.
Click to expand...
Click to collapse
did you try another usb port?
you can also try to remove all usb devices from the computer and plug in the sgs only
chebon. said:
did you try another usb port?
you can also try to remove all usb devices from the computer and plug in the sgs only
Click to expand...
Click to collapse
Hi
yes i've tried all 3 usb ports on my laptop and tried it without any other usb devices conencted. It just comes up with the usb device not recognized and sometimes it doesn't come up with anything.
I've tried it also on my vista desktop machine and im getting the same thing.
Not sure what else to try
Hi, try reinstalling the samsung driver on your pc.
reefy said:
Hi
yes i've tried all 3 usb ports on my laptop and tried it without any other usb devices conencted. It just comes up with the usb device not recognized and sometimes it doesn't come up with anything.
I've tried it also on my vista desktop machine and im getting the same thing.
Not sure what else to try
Click to expand...
Click to collapse
can odin detect your phone? Maybe you should flash a new rom
sorry cant help much
Did you update your firmware recently? I updated from 2.2 to 2.3.3 and it has a few issues, including not being able to connect as mass storage yesterday (though I had no such issue for the past few weeks).
sleeco said:
Hi, try reinstalling the samsung driver on your pc.
Click to expand...
Click to collapse
did this a few times still same
chebon. said:
can odin detect your phone? Maybe you should flash a new rom
sorry cant help much
Click to expand...
Click to collapse
Thats cool , appreciate the input
holgalee said:
Did you update your firmware recently? I updated from 2.2 to 2.3.3 and it has a few issues, including not being able to connect as mass storage yesterday (though I had no such issue for the past few weeks).
Click to expand...
Click to collapse
Firmware was updated to 2.3.3 in may but haven't had any such problem with it until now
After trawling google some post said that they switched on their bluetooth connection and then connected to mass storage and hey presto i did this and all seems to be working again. Seems very strange but for those of you who stumble across this thread.
Switch on your bluetooth and then connect the usb cable.
In my case it connected without issue.
Switched off the bluetooth and tried and it connected without issue...so it could possibly something to do with bluetooth who knows?
Appreciate everyones input thankyou
Hi!
I have the same problem. Windows can't recognize my phone, even in download mode.
I have tried the bluetooth on-off trick, without success. I have no micro-sd card in the phone. I tried on 3 pc, and in my Macbook Pro.
Can someone help me?
Thanks,
David
p.s.: Sorry about my english.
Have you tried with other USB cabel ???? I had problem with my USB and recognizing phone on pc, even with instaling drivers :-( (sorry for bad english)
Sent from my Galaxy S using Tapatalk
Also been in this situation. Couple of things I learnt:
1. make sure you have a well charged battery
2. fiddle with the usb connection on the sgs: it gets loose and is not always good, press the cable up and see if the pc gives the usb connnect sound
3. uninstall the existing Samsung drivers and then re-boot, then re-connect the usb and let windows find its own drivers or install the latest Samsung drivers posted here (http://forum.xda-developers.com/showthread.php?t=961956) -- but that guide also says, reboot the computer after installing the drivers prior to trying to connect the usb again. Its a windows thing: you must reboot after either install or uninstall the drivers.
Most probably it should be the USB cable, there is something wrong with your cable/port.
I had the exact same problem. I took my phone back to the dealer where the manager messed with it for half an hour. In the end he got it working by removing the sd card and power cycling the phone 3 times removing the battery each time. Presto, I haven't had the same problem since.
Sent from my GT-I9000M using XDA App
Sometimes a very careful tweak of the pins in the port can help, and it is not unknown for the soldering to be cracked, so both worth checking also a clean with a suitable cleaner can help
Sent from my GT-I9000 using XDA Premium App
Is your cable a original one ??? or ??

[Q] OTG storage damaged after 4.4.2 update. Any fix please?

Hey,
After I updated to latest kitkat NB2, my OTG storage stops working. It was workinf fine before update. And other functions still work fine like printer, USB headset mouse etc.
But only USB flash drives stop working. I get error message. SD card damaged try to format it. It even doesn't show up anywhere in any file manager how can I format lol. Same sticks work fine on my tab 3 10.
I use stickmount by chainfire. Everything stock and rooted.
Couln't find a fix for Note 3 by searching its forums.
Is this OS related bug or removed by samsung? Any kernels out there that have it back? Very important for me as my win 8.1 hates my Note 3 via cable. I always get pop up windows that I must close for hundred of times if device is connected for a while, manuelly.
Thank you
kenny1991 said:
Hey,
After I updated to latest kitkat NB2, my OTG storage stops working. It was workinf fine before update. And other functions still work fine like printer, USB headset mouse etc.
But only USB flash drives stop working. I get error message. SD card damaged try to format it. It even doesn't show up anywhere in any file manager how can I format lol. Same sticks work fine on my tab 3 10.
I use stickmount by chainfire. Everything stock and rooted.
Couln't find a fix for Note 3 by searching its forums.
Is this OS related bug or removed by samsung? Any kernels out there that have it back? Very important for me as my win 8.1 hates my Note 3 via cable. I always get pop up windows that I must close for hundred of times if device is connected for a while, manuelly.
Thank you
Click to expand...
Click to collapse
It is probably related to the new 4.4 security restrictions on storage, and maybe some of the solutions for that will fix this one too (I believe now there is also an xposed module).
Sd card fix didn't help OTG cable storage problem.
Is the module for SD card?
No one?
Till date i am also facing this issue. Though i can read the OTG from ES Explorer but it is readonly & unable to copy data to the OTG.
It's a shame. I bought my GN3 for OTG feature as a reason. Samsung should have kept this feature.

[Q] Sandisk Dual USB OTG + Stock ROM

Hi Guys,
does anyone know if there are any issues with the OTG on the stock Galaxy S4 (i9506 Telstra)?
I purchased a Sandisk Dual USB OTG drive 64GB and for some reason after it detects it and says "USB Connector Connected", it comes up with "USB Mass Storage Safely Removed" straight away.
I have checked few of the apps on the market that check if OTG works, and they all show it is enabled on the device.
I have also formated the drive exFat and tried FAT32, and neither of them work.
any ideas why the drive unmounts automatically?
@AntaresOne. Throw some light here!
"If someone helps, never forget to hit thanks ? "
@stormleader
Hello,
First, FAT32 is made to be used on disks of max 32GB (you can also use exFAT on this size as I currently do), and starting from 64GB you should always use exFAT.
Are you sure that device's USB connector is not dirty? If may be, clean it with a toothpick.
If this doesn't solve your problem, see if there are software updates for your device (could be a software issue), try also an other OTG device (a simple pendrive+OTG cable is enough)
Inviato dal mio GT-I9505
AntaresOne said:
@stormleader
Hello,
First, FAT32 is made to be used on disks of max 32GB (you can also use exFAT on this size as I currently do), and starting from 64GB you should always use exFAT.
Are you sure that device's USB connector is not dirty? If may be, clean it with a toothpick.
If this doesn't solve your problem, see if there are software updates for your device (could be a software issue), try also an other OTG device (a simple pendrive+OTG cable is enough)
Inviato dal mio GT-I9505
Click to expand...
Click to collapse
cool, thanks. didn't know about the FAT32 limitation. and Yes my USB connector is clean and all. it doesn't seem to be hardware problem. I've got the latest stock 4.3.
I'll try on another S4 when I get the chance. I might need to get OTG cable, will come in handy one day. All I have right now is that Sandisk USB stick (which is very handy to have when it works )
I"ll try few more things and report back. I just wanted to check if anyone has OTG USB drive that works with the S4.
I just figured it out. I had encryption enabled on my phone memory and SD card. Not sure why this interferes with reading the USB.
It worked perfectly as soon as I disabled the decryption on the phone and SD card.

1 TB Selfpowered HD via OTG on Zenphone2 Laser ZOOED

Hello everyone, i hope i'm in the right section of the forum.
I'm trying to load a Toshiba Canvio Basic via otg with my zenfone2 laser, but it won't start. Can you see the white led and ear the hd start but nothing happend on the phone.
Instead an old Samsung S2 plus, works perfecty (a little slowly), any one knows how and why?
Is there some limitation by lollipop?
ps : the Zenfone2 is stock, the only mod that i've do is the root, same thing on the S2 Plus
Lollipop cant read ntfs partition. Also you should use some externally powered USB hub if you are going to use external HDD.
souravipc53 said:
Lollipop cant read ntfs partition. Also you should use some externally powered USB hub if you are going to use external HDD.
Click to expand...
Click to collapse
The hd is fat32 formatted, and readed by an old samsung s2plus without any external powebank or usb hub, only connected to the phone....i'm going crazy

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