[Q] USB OTG mount problem - ONE Q&A, Help & Troubleshooting

HI guys, I am very satisfied with this phone when I got it a week ago. However, I was facing sometimes my phone unable to mount USB OTG storage, I mean the USB drive won't lit at all / detect by phone, I have to reboot the phone then it only gets detected. Any other way round to solve this without rebooting?

I haven't had trouble using my OTG usb stick so far. Have you tried using Nexus Media Importer? It lets you mount/unmount on demand.

Does it show the USB drive as unmounted in the Storage menu?
Also, did you try a different thumb drive with a different filesystem on it? I cannot reproduce your issue at all.

Ok after my investigation, the USB OTG still works but just the USB port of my phone unable to supply power, if I use a power bank + USB hub then connect to my phone, my phone detects the USB drive. Similar to somewhat my phone requires external power to mount. But if I reboot my phone then the USB OTG work properly again though. Until I remove and remount it next time, then the problem occur again.
Currently my phone setup as my signature. No custom kernel but just recovery.

d4fseeker said:
Does it show the USB drive as unmounted in the Storage menu?
Also, did you try a different thumb drive with a different filesystem on it? I cannot reproduce your issue at all.
Click to expand...
Click to collapse
Ok I know whats the problem now. You can try during deep sleep insert in your USB OTG. It can't detect at all even if you remove and reinsert. Have to reboot the phone. So my guess is right I think. The phone have to screen on to insert USB OTG or else it cannot detect.

Did any one try a 1tb portable hard drive?

vamshi88 said:
Did any one try a 1tb portable hard drive?
Click to expand...
Click to collapse
I don't have 1TB but I have 500GB and it works without external power.

soralz said:
I don't have 1TB but I have 500GB and it works without external power.
Click to expand...
Click to collapse
few older phones supported 500gig portable hard drive too but did not support 1tb, my phone will be delivered tomorrow I'll update here then.
Fingers crossed.

I just tried a 16GB USB drive through an OTG cable, and it didn't detect it. My screen was on, and I was running stickmount as well.
I had to restart the phone to get it to detect.
I have the same issue with my N8010. Have to restart to get it to recognise the USB.
Hopefully, there will be a simple solution to this.
Sent from my One using XDA Premium 4 mobile app

Awesome, so my 1TB is working with the one no problems whatsoever.:thumbup:
Sent from my One using XDA Free mobile app

Well it seems in my case it's rather random, sometimes USB drives (or HDD's) will mount, other times nothing happens at all, while some drives refuse to mount at all.
Maybe it's faulty cable don't know?

I have problem
I was able to mount USB 3.0 64 gb without any formating, and it shows in settings too, but now I can't see it in settings and in El file explorer it is very slow.. What should I do, I can't format to fat32

Same Problem
I can not get any drive to stay mounted, cable works fine on nexus 5 so do the drives but no luck with opo has anyone any info on this since oct 2014 post

I can not get any drive to work too. I tried variuos, from 1gb to 500gb, also tried with FAT and NTFS, none of them working. Please help. I am using CM12S, newest firmware, it doesnot work, on 11S it did not worked, i tried on Oxygen OS, doesnot work too.

admuerte said:
I can not get any drive to work too. I tried variuos, from 1gb to 500gb, also tried with FAT and NTFS, none of them working. Please help. I am using CM12S, newest firmware, it doesnot work, on 11S it did not worked, i tried on Oxygen OS, doesnot work too.
Click to expand...
Click to collapse
Try app named stick Mount

molonad said:
Try app named stick Mount
Click to expand...
Click to collapse
Thanks, I have already tried it, but it did not helped.

I'm using desire 816 with cm13, my device supports otg buy my phone is not detecting it.

Related

[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] OTG doesn't recognise my USB memory card

Hi, when I plug in my usb memory nothing happens, I installed USB OTG Helper and I get code 5, I already tried another memory card and it doesn't work either, however, I tried a mouse and it works perfectly, what can I do?
Maybe only FAT32 file system is accepted.
The usb disk is formatted in NTFS or FAT32?
Sent from my iPhone using Tapatalk
Checked
mjjferreira said:
Maybe only FAT32 file system is accepted.
The usb disk is formatted in NTFS or FAT32?
[/URL]
Click to expand...
Click to collapse
I just checked and it is FAT32, I have never used OTG so I don't know what to do...
EDIT: I just checked OTG Troubleshooter and it even says the model of my usb memory stic so I'm guessing the issue is I can't/don't know exactly how to acces the data on it
Descendent182 said:
I just checked and it is FAT32, I have never used OTG so I don't know what to do...
EDIT: I just checked OTG Troubleshooter and it even says the model of my usb memory stic so I'm guessing the issue is I can't/don't know exactly how to acces the data on it
Click to expand...
Click to collapse
/storage/usbdisk_1.1.1/
Sent from my phone
Descendent182 said:
I just checked and it is FAT32, I have never used OTG so I don't know what to do...
EDIT: I just checked OTG Troubleshooter and it even says the model of my usb memory stic so I'm guessing the issue is I can't/don't know exactly how to acces the data on it
Click to expand...
Click to collapse
It might be worth the $4 for Nexus Media Importer available on the Play Store. I tested it on the Moto G and it's working flawlessly. Keep in mind there's always the off chance your OTG cable is incompatible.
I have the same problem after updating to kit kat (only works wireless keyboard), in 4.3 all worked perfectly. All usb has mounted with FAT32 system.
Sorry for my english.
javiko_bcn said:
I have the same problem after updating to kit kat (only works wireless keyboard), in 4.3 all worked perfectly. All usb has mounted with FAT32 system.
Sorry for my english.
Click to expand...
Click to collapse
Are you sure that you used a third party tool to mount the USB? KitKat doesnt support OTG anymore/at the moment.
mokkami said:
Are you sure that you used a third party tool to mount the USB? KitKat doesnt support OTG anymore/at the moment.
Click to expand...
Click to collapse
Yeah that seemed to be the issue I installed stickmount and that seemed to do the trick however the app that I used previously gave code 5 and didn't work,thanks!

OTG? And external storage...

20141017_215927
I currently have this setup.. The problem that I'm running into is connection.
When I connect it to the phone it will recognize the USB Storage device and then disconnect almost immediately.
Could it be that the stock rom does not support it?
I think that's the cable.
Happened to me too at my Note 8.0. I must hold the OTG cable if gonna use that
If the kernel in the rom not support it, it won't read the external storage at all
ar216893 said:
I think that's the cable.
Happened to me too at my Note 8.0. I must hold the OTG cable if gonna use that
If the kernel in the rom not support it, it won't read the external storage at all
Click to expand...
Click to collapse
But the cable is 100% snug fit.
hmm that's weird..
have you try with others cable ?
or try those setting in other device that support the OTG
ar216893 said:
hmm that's weird..
have you try with others cable ?
or try those setting in other device that support the OTG
Click to expand...
Click to collapse
Haven't tried another cable... Maybe time to buy another one? Could it be the usb stick? doubt the usb stick has problem since it's so new
I have the same setup since the Note 2 and tried it on the Note 4 and it works just fine. I would try another cable or try another drive. I just tried with my external hdd and it works fine too.
nmw407 said:
I have the same setup since the Note 2 and tried it on the Note 4 and it works just fine. I would try another cable or try another drive. I just tried with my external hdd and it works fine too.
Click to expand...
Click to collapse
Which cable are you using? Where did you buy? Seems like there are a lot of OTG cables that look the same.
twe90kid said:
Which cable are you using? Where did you buy? Seems like there are a lot of OTG cables that look the same.
Click to expand...
Click to collapse
Bought mine from Dealextreme long ago.
Try formatting the USB either NTFS or FAT32 and check! I remember that stock Rom/Kernel supports one specific format. Post back if you tried the above said
SAVVAS. said:
Try formatting the USB either NTFS or FAT32 and check! I remember that stock Rom/Kernel supports one specific format. Post back if you tried the above said
Click to expand...
Click to collapse
I think it's the FAT32, I can't use my external HDD which has NTFS format. But thats in my galaxy note 8, haven't got my note 4 yet as I'm waiting for the bronze gold one.
twe90kid said:
Haven't tried another cable... Maybe time to buy another one? Could it be the usb stick? doubt the usb stick has problem since it's so new
Click to expand...
Click to collapse
Maybe you should try it with other device man, if it doesn't work, then it's time the change the cable. I'm about to reply it earlier, but posting something on xda trough samsung web browser take me to vBulletin page, I don't know why.
It is FAT32 that is needed. I originally had my 126GB PNY drive (just like yours) formatted NTFS and it did not work.
Interestingly, it appears to also work with exFAT.
For larger files than 4 gb you need to format you media in exfat format. Just plug into your pc and format in exfat. Ntfs is possible with root and programs like paragon or nexus .
---------- Post added at 01:15 PM ---------- Previous post was at 01:13 PM ----------
twe90kid said:
20141017_215927
I currently have this setup.. The problem that I'm running into is connection.
When I connect it to the phone it will recognize the USB Storage device and then disconnect almost immediately.
Could it be that the stock rom does not support it?
Click to expand...
Click to collapse
Format in pc EXFAT. Will work with note 4 and larger than 4 gb files.

[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?

Can't use USB flash drive with my phone

When I insert them in other phones, they work. But it doesn't work with Oneplus 8T anymore. It detects a USB device but doesn't show the storage content. I tried formatting between NTFS/exFAT/MBR/GUID but nothing worked
Probably a defective USB port or, simply, a bad driver issue. Try to force the Google USB driver with Device Manager on Windows
zSyntex said:
Probably a defective USB port or, simply, a bad driver issue. Try to force the Google USB driver with Device Manager on Windows
Click to expand...
Click to collapse
Not a windows issue.
I am talking about inserting thumb drive in my phone and accessing them
ThatCor said:
Not a windows issue.
I am talking about inserting thumb drive in my phone and accessing them
Click to expand...
Click to collapse
So do you mean USB OTG directly to the OnePlus 8T?
zSyntex said:
So do you mean USB OTG directly to the OnePlus 8T?
Click to expand...
Click to collapse
Yes
Ever since I upgraded to OOS13 I haven't gotten any USB drives to work while plugged into the phone as well. They have been formatted differently - exFat and Fat32. These same drives work with my Samsung tablet which tells me it's more of a OnePlus problem

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