USB otg trouble - ONE Q&A, Help & Troubleshooting

Hi, I have problem with USB, I buied USB 3.0 adata 64gb, and USB otg kabel everything worked fine, I was able to see USB in settings - storage, but then I use USB with Windows and then I tried USB in android again and I can't see it in settings storage, I can see it in some different name in file explorer and speed is much slower than before.. and it keeps saying that USB is disconnected, I tried format in Windows but didn't work.. I can only format to ntfs and exfat, I can't format to fat32.please help what should I do to get same effect as before-speed and that I can see it in settings , thanx

Bought*

Yes and before I can use USB in car radio now it doesn't work..

Again awesome feedback on troubleshooting thread

I fixed problem, mounted by stickmount and formated with program to fat32, thanx for help ?

Related

Gtab does not see USB Drive

Hi!
I can't seem the usb drive to work with vegan beta4. Is this suppost to work or is it something i must install for it to recognize my usb thumb ?
DaMan said:
Hi!
I can't seem the usb drive to work with vegan beta4. Is this suppost to work or is it something i must install for it to recognize my usb thumb ?
Click to expand...
Click to collapse
Not 100 percent sure but i beleive someone said that you need to boot the device with the usb plugged in for it to recognize some drives?
dragonfly1113 said:
Not 100 percent sure but i beleive someone said that you need to boot the device with the usb plugged in for it to recognize some drives?
Click to expand...
Click to collapse
I tried that but no result.
thx
It should be listed as usbdrive using your favorite file manager. Usually under
...
...
sdcard
sdcard2
usbdrive
Its not like windows. It doesn't pop up with a window when you plug it in. Flash drive must be formatted fat32. Android doesn't like ntfs
thebadfrog said:
It should be listed as usbdrive using your favorite file manager. Usually under
...
...
sdcard
sdcard2
usbdrive
Its not like windows. It doesn't pop up with a window when you plug it in. Flash drive must be formatted fat32. Android doesn't like ntfs
Click to expand...
Click to collapse
I do see the USB drive bit it's always empty. USB drive is fat32 formatted.
Using a USB mouse works great. I don't get a popup which notifies me about a connected usb drive like my archos 101 did.
Did a little discovery:
When connecting the tab to pc with a usb cable only then a "mount usb" message pops up.
Then a usb drive will work.
Now how do i get the gtab to mount the usb drive ?
I don't think any of these roms are gonna give you a popup when you load a usb drive. I just plugged one in on tnt 3.1 and it reads it thru file manager. I was on vegan beta4 and did the same thing yesterday
Edit: usb disk not usb drive
When you connect a cable from your pc to the tablet the pop up is to allow the tab to unmount the internal sdcard so your pc can read it.
thebadfrog said:
I don't think any of these roms are gonna give you a popup when you load a usb drive. I just plugged one in on tnt 3.1 and it reads it thru file manager. I was on vegan beta4 and did the same thing yesterday
Edit: usb disk not usb drive
Click to expand...
Click to collapse
I do not understand...what is location of the usb files then ?
Open iFileManager and hit the icon that looks like a house. Scroll down and you will find a folder named usbdisk. That is your usb drive. Open the folder. I'm assuming the usb drive is plugged in
thebadfrog said:
Open iFileManager and hit the icon that looks like an icon. Scroll down and you will find a folder named usbdisk. That is your usb drive. Open the folder. I'm assuming the usb drive is plugged in
Click to expand...
Click to collapse
/usbdrive is empty.
It becomes populates when i insert a mini usb cable and connect it to the pc.
This give me the mount option and only then i see files under /usbdrive.
idk then, I never had a problem reading the usb drive on vegan beta4. Sorry I can't help
OK, found it.
I have to unmount the sdcard first. Then the usb drive shows with files.
Thanks.
Cool....You may wanna drop a note in the vegan thread on what you did. Maybe others have had the same issue.
DaMan said:
OK, found it.
I have to unmount the sdcard first. Then the usb drive shows with files.
Thanks.
Click to expand...
Click to collapse
Hey. I just got a USB Flash Drive and tried connecting it to my GTab but no dice. I am running Vegan 5.1 and using ES File Explore. I navigate to the root directory and see sdcard, sdcard2, and usbdisk. Sdcard and sdcard2 has my internal storage and my micro usb storage files respectively. But nothing pops us in usbdisk. I tried removing the microsd, rebooting with the USB inserted, and unmounting the microSD but no dice.
Any hints?
Thanks,
Scott
Update: So I tried going to settings and unmounting the sdcard and now I can see the USBdisk. Odd. If I want to transfer data from one drive to another, I cant accomplish that because the SDcard is unmounted. Also all my appdata and stuff are not present. Any way to have both of these drives mounted at the same time?
Thanks

[Q] USBOTG doesn't work

Hi to all!
Here's the problem that I have.
After upgrading my Xoom (US 3G) to Tiamat 2.1 Hammerhead USBOTG stopped to work. When I try to connect flashdrive via this cable it blinks only once and that's all. The folder USBOtg is empty -> nothing is shown (but I know that there are files). I tried to format flashdrive to various filesystems (NTFS, FAT32) -> no result.
Another strange thing after upgrade is with MicroSD folder. It shows me only old data. All new one that I copied to it via PC it doesn't show at all. AND!!! PC doesn't see the content of folder with name "external" on Xoom but when I copy there files from PC then Xoom can see them.
May anyone advice any steps to return usbotg and microsd in normal working state?
I tried to re-flash Xoom with previous various versions of firmwares (mods) -> the same situation.
BR, akadimka
akadimka said:
Hi to all!
Here's the problem that I have.
After upgrading my Xoom (US 3G) to Tiamat 2.1 Hammerhead USBOTG stopped to work. When I try to connect flashdrive via this cable it blinks only once and that's all. The folder USBOtg is empty -> nothing is shown (but I know that there are files). I tried to format flashdrive to various filesystems (NTFS, FAT32) -> no result.
Another strange thing after upgrade is with MicroSD folder. It shows me only old data. All new one that I copied to it via PC it doesn't show at all. AND!!! PC doesn't see the content of folder with name "external" on Xoom but when I copy there files from PC then Xoom can see them.
May anyone advice any steps to return usbotg and microsd in normal working state?
I tried to re-flash Xoom with previous various versions of firmwares (mods) -> the same situation.
BR, akadimka
Click to expand...
Click to collapse
Two different issues--if you read the release notes with the Hammerhead Rom, Team Tiamat removed the USB Mass Storage enabling that had been in earlier Rom, due to various difficulties. So that means you can no longer use your PC to copy files into the micro sd card in the Xoom, but you can cop files directly to the sdcard using an adapter or card reader. Your Xoom should still have access to the files on your micro sd card at mnt/external1.
The usbOTG works fine for me but it needs the help of an app like USB Mass Storage Watcher OTG or Drive Mount. Both will work. It also helps to reboot with the drive plugged in the first time if you are having a hard time getting the Xoom to recognize it.
Thanx! Drive Mount helped me with recognizing and mounting flash drive (but only after Xoom reboot with drive plugged in). USB Storage Watcher OTG crashes everytime when I start it with drive connected -> with disconnected it starts normally but won't see any after-connected drives. Ssems that I'll use Drive Mount program
As for MicroSD -> even connected directly to PC and copied some files to it Xoom still sees only old data. Any ideas?
BR, Dmitry
Sent from my Xoom using XDA Premium App
akadimka said:
Thanx! Drive Mount helped me with recognizing and mounting flash drive (but only after Xoom reboot with drive plugged in). USB Storage Watcher OTG crashes everytime when I start it with drive connected -> with disconnected it starts normally but won't see any after-connected drives. Ssems that I'll use Drive Mount program
As for MicroSD -> even connected directly to PC and copied some files to it Xoom still sees only old data. Any ideas?
BR, Dmitry
Sent from my Xoom using XDA Premium App
Click to expand...
Click to collapse
Actually, try checking the folder mnt/external1 (1) as this is HC3.2's official mount point. The Microsd mount point is an artifact of an older Rom.
i am using hammerhead rom with tachi kernel.
yup the usb otg not working.
tried both usb watcher and drive mount.
rohit3192 said:
i am using hammerhead rom with tachi kernel.
yup the usb otg not working.
tried both usb watcher and drive mount.
Click to expand...
Click to collapse
Make sure that you are using a REAL usbOTG cable.
A real USB otg cable? What needs to be special about the cable in order for it to work?
Sent from my Nexus One using xda premium
msavic6 said:
A real USB otg cable? What needs to be special about the cable in order for it to work?
Sent from my Nexus One using xda premium
Click to expand...
Click to collapse
This is where I will suggest that you do some research. Start with this forum and then search elsewhere. Just today I have answered this question 3 times. Search on my name and you will see my posts with your answer.
i am using micro usb male to normal usb female.
cable is gold plated and branded.
but others have also mentioned that usbotg not working after they updated to 3.2
though i never tested on 3.1
rohit3192 said:
i am using micro usb male to normal usb female.
cable is gold plated and branded.
but others have also mentioned that usbotg not working after they updated to 3.2
though i never tested on 3.1
Click to expand...
Click to collapse
Your cable will never work because it is not OTG. OTG has a different pin configuration to allow the Xoom to function in usb host mode. If you are handy with a soldering iron you could make one, but why not buy one, they are availble. Here is my Google search for USBOTG Xoom to get you started: http://www.google.com/search?hl=en&source=hp&q=usb+otg+xoom&aq=2s&aqi=g1g-s9&aql=&oq=usbOTG

[Q] USB OTG won't mount or unmount, but still able to read

Hey guys, just got a Unitek Micro SD Card Reader (SN:131000001778) with a 32gb micro sd card. I hooked it up using Stickmount, I can access the memory card, but when I go to unmount it, nothing happens and when I pull the reader, I get "USB storage unexpectedly removed". I uninstalled Stickmount and loaded USB OTG Helper, when I hook up the reader and hit mount I get-
"Mount started at: /storage/UsbOtgDrives"
"No drives mounted! (code 9)"
When pressing unmount, I get-
"No drives found to unmount!' Of course.
Is there any way to get it to mount or unmount, and am I possibly looking at data corruption if I'm unable to get the drive to mount or unmount when inserting or unplugging it?
Solved: Kinda
Guess I have to use Settings/Storage to mount and unmount usb storage. Still doesn't explain why Stickmount and USB OTG Helper do not work. Is it an Android 4.x limitation?
Stickmount works just fine with my Meenova... not sure why it wouldn't work unless that OTG is not compatible...
ldubs said:
Stickmount works just fine with my Meenova... not sure why it wouldn't work unless that OTG is not compatible...
Click to expand...
Click to collapse
Not sure why, I just got done using it and unmount through settings works perfectly. I just uninstalled USB Otg Helper and it still unmounts fine. I'm not gonna worry about it unless my data starts getting corrupted which it shouldn't now or I use a rom or kernel that doesn't have USB Otg built in which would be a rarity now a days.

[Q] Need some help with OTG

Hello,
I just bought a SD-Card USB reader, an active USB hub and an OTG cable. I want to copy my holiday photos from SD Card to an external USB HDD via Nexus 5 with current CM11. The HDD has 160GB. When I plug in the SD-Card USB reader directly or through the USB hub I can read, write copy files from or to it. My 160GB HDD doesn't work. I tried to format it with FAT32, exFAT or NTFS in different sizes. I used ES File Explorer. There I can see both USB devices but when I try to access the USB HDD ES File Explorer loads and loads an loads but nothing happens more...
How do I ahve to format the USB HDD to get this working? Are there any limits on size, format or even hardware?
I think cm11 on nexus 5 cannot handle two otg storage device at once. Try stickmount app from playstore.
bitdomo said:
I think cm11 on nexus 5 cannot handle two otg storage device at once. Try stickmount app from playstore.
Click to expand...
Click to collapse
OK, thanks a lot, I'll give it a try!

[Q] Mi 4i USB OTG Not Working

Hi,
I am extremely sorry if this is not the right place to ask this.
I got my Mi4i on the first flash. As soon as I got the phone, I did the MIUI 6.5.3.0 (LXIMICD) update. I did not check the USB OTG before the update, so not sure if it worked before the update or not. When I tried USB OTG, the Mount USB storage option is greyed out - always. I tried 2 different USBs and 2 different cables - still no luck. I am starting to suspect if its something wrong with this ROM release, as lots of areas in the setting is greyed out for me (for example, in the Headphones and Audio effects settings, the equalizer settings are always greyed out). So, have any of you tried USB OTG on MIUI 6.5.3.0? Any insights?
Yes I can assure u that USB OTG is working fine on MIUI 6.5.3.0
Check if the USB is a fat32 or ntfs?
Ntfs file system doesn't work with mi4i
Format the pen drive in fat32 and try again
I also tired a sd card reader it works brilliantly
Audio settings will be greyed out until u plugin headphones. Try any earphones or headphones then check if it still is greyed out
sharan.nyn said:
Yes I can assure u that USB OTG is working fine on MIUI 6.5.3.0
Check if the USB is a fat32 or ntfs?
Ntfs file system doesn't work with mi4i
Format the pen drive in fat32 and try again
I also tired a sd card reader it works brilliantly
Audio settings will be greyed out until u plugin headphones. Try any earphones or headphones then check if it still is greyed out
Click to expand...
Click to collapse
Thank you for the reply but I am still facing the issue...
Yes, the file system is Fat32 and the mi4i is still not recognizing the USB. Since the USB OTG is working fine for you, I suspect my OTG cable might be damaged ( weird- I tried 2 different cables).. Maybe I should try a different OTG pen drive?
PS: You were right about the audio settings, those worked when I plugged in the headphone..
same problem here.keyboard and mouse working but no usb drive with same otg cable. Otg card reader also not working.
Godinhell said:
same problem here.keyboard and mouse working but no usb drive with same otg cable. Otg card reader also not working.
Click to expand...
Click to collapse
If you're USB or SD Card is of huge capacity it may take time to load so I would suggest you to wait for a while, Android checks if the storage has an errors. It doesnt show in MIUI though. But wait for a while after plugging in.
NOT ABLE TO CREAT USER IN MI4I MIUI 6.5.3.0(lximicd)
Hi,
I am using Mi4i. In that phone I am not getting option for user or guest creation.
Other lollipop anroid version phones version having that option.
Please help me out for this.
sharan.nyn said:
If you're USB or SD Card is of huge capacity it may take time to load so I would suggest you to wait for a while, Android checks if the storage has an errors. It doesnt show in MIUI though. But wait for a while after plugging in.
Click to expand...
Click to collapse
Iam trying to use a 16 gb pendrive in fat32. And its not showing up for me as well. Help?
Sent from my Mi 4i using XDA Free mobile app
I have sandisk otg 64gb and it works without an issue. Make sure it is formatted with FAT. Other FS like exFAT and NTFS wont work, not sure about Fat32 though.
Hope this helps.
I bought a new 16gb Sandisk 3.0 OTG usb and its working fine for me now.
What's working:
* FAT formatted USB flash drives
* USB Mouse
* USB Keyboard
What's not working:
* NTFS formatted USB flash drives
* Portable USB hard drive
* USB Gamepad
I have an OTG cable lying around. Will soon test Linux file systems (ext2, ext3, etc.). Give me more suggestions, and i'll test it on the Mi 4i.
Sent from my Mi 4i
Hit thanks if I helped!
i just bought sandisk 32gb dual usb 2.0. This is working fine but showing the same drive i.e internal storage of the phone. is it a bug or normal?
Sent from my Mi 4i using XDA Free mobile app
update : it's working fine now.
Sent from my Mi 4i using XDA Free mobile app
stivinnaura said:
What's working:
* FAT formatted USB flash drives
* USB Mouse
* USB Keyboard
What's not working:
* NTFS formatted USB flash drives
* Portable USB hard drive
* USB Gamepad
I have an OTG cable lying around. Will soon test Linux file systems (ext2, ext3, etc.). Give me more suggestions, and i'll test it on the Mi 4i.
Sent from my Mi 4i
Hit thanks if I helped!
Click to expand...
Click to collapse
Aren't there root apps which enable ntfs support by installing a ntfs-3g driver?
The functionality is kernel-baked and not all kernels support the ntfs-3g driver. Also Xiaomi seems reluctant to release its sources anytime soon. There are alternatives like Stickmount however.
- Hit Thanks :thumbup: if you found it useful!
- Sent from my Mi 4i
OTG
i am not able to tranzfer files frm internal storage to usb flash drive via OTG on mi4i.. In Miui file explorer mount usb doesnt open up, if i use es file explorer i am able to view files, mount & Unmount, but cannot copy from internai to USB, BUT the reverse is posssible, I.e, i can copy frm usb flash to internal storage. pls hlp friends
Is the USB FAT32 formated? Because it supports only FAT32 formated flash drives.
Mi4i can not copy from internal to usb otg storage
Actually I got the same problem.
I can not copy some files from internal storage to my usb otg storage. It said "failed EACCESS".
Could someone help me out?
nandaleo72 said:
i am not able to tranzfer files frm internal storage to usb flash drive via OTG on mi4i.. In Miui file explorer mount usb doesnt open up, if i use es file explorer i am able to view files, mount & Unmount, but cannot copy from internai to USB, BUT the reverse is posssible, I.e, i can copy frm usb flash to internal storage. pls hlp friends
Click to expand...
Click to collapse
I tried to mount my memory card by connecting to a card reader and then to OTG cable but it gets disconnected after a short time. Showing message "USB removed unexpectedly ".I tried to connect it using a different OTG cable and a different Card Reader but the problem remains the same.Anyone please help me.
same problem here
Ahtisham Wani
can you explain what problem are you facing exactly?

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