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[Q] USB won't mount after TWRP wipe of Internal Storage + Android Secure

USB Storage and USB Debugging will not mount to Windows 7 PC or Mac
*I'm posting this thread because I have exhausted every option discussed on the internet*
One day I decided to wipe more than usual using TWRP. I wiped Internal Storage and Android Secure. Ever since then, I have not been able to mount USB to my PC. No PC computer on planet earth will recognize my skyrocket. "Unkown Device" is all I get. Every USB cable, every USB port, every PC, every Mac I have tried. I've tried every driver set, I've tried formatting my PC and reinstalling fresh samsung drivers, I've tried Kies, I've tried formatting my SD storage, I've fixed permissions and wiped everything known to Android. Odin will not detect the phone without working windows drivers and neither will SuperOneClick. I'm out of cards. Game over. Every other function of the device works just fine, and I've gotten by using my 64GB external SD card as a means to transfer files between PC and phone. Come to think, this all started when I put that 64gb SD card in my phone and tried to format it and everything else in TWRP. External SD card works, but nothing will mount.
Before I explore the final possibility that the USB plug on my phone is physically damaged, I'd like to know if anyone out there has had any problems with USB mounting as a result of TWRP wiping and/or External SD Card installation/formatting causing things to go awry.
Any help would be greatly appreciated. I will donate to anyone helps me solve the issue, as I need to be able to sell this phone with a clear conscience.
Thanks!

What version of twrp are you using. I saw another post where it wouldn't mount internal with 2.4.0.0. Seems it might be an issue with that version.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

It was using 2.2.3 at the time. I feel strongly that this is an issue with formatting the internal SD card via twrp while adding an external SD card to the phone. I believe the system partition responsible for mounting the phone is corrupted. Maybe a re-partition is the solution? If I could somehow restore the system partition files. I am an avid flasher but partitioning is beyond my scope. Maybe someone can point me to a guide about partitioning.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

digitalryan said:
It was using 2.2.3 at the time. I feel strongly that this is an issue with formatting the internal SD card via twrp while adding an external SD card to the phone. I believe the system partition responsible for mounting the phone is corrupted. Maybe a re-partition is the solution? If I could somehow restore the system partition files. I am an avid flasher but partitioning is beyond my scope. Maybe someone can point me to a guide about partitioning.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Hey man did you ever resolve this issue? I just erased a bunch of folders on my internal SD and it won't mount anymore. I'm using a Droid4 and, of course, the problem is consistent on both ROM and stock.
I guess for now I'll have to download from my dropbox account.
Cheers

I'm on the Note 2 (N7100) and have the same issue. I formatted internal storage in TWRP. Now USB is not detected on any pc. Any updates?

Lodd said:
I'm on the Note 2 (N7100) and have the same issue. I formatted internal storage in TWRP. Now USB is not detected on any pc. Any updates?
Click to expand...
Click to collapse
Nvm
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

SD Card Format

ROM: CM 11-20140204-NIGHTLY-skyrocket
I've done some searches and was not able to find anyone with the same issue as me. So, erased my SD card through the ROM (Settings > Storage > Erase SD card
I rebooted the phone,and it told me there was a blank SD card in there and I needed to format it. Well, every time I try to format it, my phone reboots. I tried doing it through recovery, and it told me error mounting SD card.
Any ideas on how to fix this or is my SD card shot? It was working perfectly fine before I erased it. I would plug it into a computer, but i don't have an adapter.
Thanks in advance!

Format it in your computer. Use FAT32 file system and do a quick format.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Commodore 64 said:
Format it in your computer. Use FAT32 file system and do a quick format.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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Click to collapse
Yea...that's what I figured I was going to have to do. Guess I need to find an adapter lol.

zervic said:
Yea...that's what I figured I was going to have to do. Guess I need to find an adapter lol.
Click to expand...
Click to collapse
its not really an adapter, its the usb cable that came with the phone or any samsung cable, blackberry cable and many others might even work

Vin his problem isn't the cable bro it formatted incorrectly the phone doesn't recognize it and can't mount it via recovery to format it. He just needs to toss it on a computer and do it from there.
Sent from my SAMSUNG-SGH-I727 using Tapatalk

TheCybertronian said:
Vin his problem isn't the cable bro it formatted incorrectly the phone doesn't recognize it and can't mount it via recovery to format it. He just needs to toss it on a computer and do it from there.
Sent from my SAMSUNG-SGH-I727 using Tapatalk
Click to expand...
Click to collapse
yea....tried it via USB and couldn't get it to work. Guess I need to find an adapter so I can get it connected directly to my computer. Thanks for the help everyone.

zervic said:
yea....tried it via USB and couldn't get it to work. Guess I need to find an adapter so I can get it connected directly to my computer. Thanks for the help everyone.
Click to expand...
Click to collapse
so even w/a pc you couldnt format it, what was the error when doing that.
adapters are really cheap anyways

vincom said:
so even w/a pc you couldnt format it, what was the error when doing that.
adapters are really cheap anyways
Click to expand...
Click to collapse
No error... Just the internal card showed up. I tried mounting it and then plugging in the phone, same thing. Really strange. Yea, adapter isn't a huge deal, just caught me off card that it reboots my phone when I try to format it through the ROM.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Eject USB otg?

Plugged in a USB stick today in Stock CM11. Couldn't find a way to eject the USB afterwards. Does anyone know of the option? Usually it would be located under storage.
Sent from my One using Tapatalk 2

naruto.ninjakid said:
Plugged in a USB stick today in Stock CM11. Couldn't find a way to eject the USB afterwards. Does anyone know of the option? Usually it would be located under storage.
Sent from my One using Tapatalk 2
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Click to collapse
It should be in the storage settings, where it says "Unmount USB storage" or something along those lines.

naruto.ninjakid said:
Plugged in a USB stick today in Stock CM11. Couldn't find a way to eject the USB afterwards. Does anyone know of the option? Usually it would be located under storage.
Sent from my One using Tapatalk 2
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Click to collapse
yes, It's in storage menu. Mount usb storage and unmount. I tried and it works!

Xust said:
It should be in the storage settings, where it says "Unmount USB storage" or something along those lines.
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Click to collapse
it shows me to unmount internal storage?
derekk75j said:
yes, It's in storage menu. Mount usb storage and unmount. I tried and it works!
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Click to collapse
Sent from my One using Tapatalk 2

Yes

Yeah that worked I thought unmounting the internal storage would unmount the internal and not the USB
Sent from my One using Tapatalk 2

[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?

OTG Support

Is OTG supported for the honor 6 H60-L04. If so, which format should I use, NTFS, exFAT or something else ?
PS: My plan is to make a nandroid backup with twrp on my usb.
Sent from my H60-L04 using XDA-Developers Legacy app

Why not on SD card?

hassanjavaid8181 said:
Why not on SD card?
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Click to collapse
If you have 2 backups, it is always better. I know people who had a bootloop and tried to recover from sdcard and failed.
P.S: I have got an otg cabel and it works. The USB has to be in exFAT Format to work. For me NTFS doesnt work(you can only read but not write).

Lukalion said:
If you have 2 backups, it is always better. I know people who had a bootloop and tried to recover from sdcard and failed.
P.S: I have got an otg cabel and it works. The USB has to be in exFAT Format to work. For me NTFS doesnt work(you can only read but not write).
Click to expand...
Click to collapse
Yeah NTFS support needs some kernel tweaking.