[Q] Can't write to my USB memory stick. - Samsung Galaxy Nexus

I recently bought OTG USB cable so that I could use my usb stick or external hdd for additional storage (since we dont have an external mini sd card slot). When I connect my usb stick (FAT32), it appears in settings-->storage properly. The ES File Explorer app also shows a new folder storage/usbdisk... So everything looks fine. But I can only read to it, not write... the app gives me the error "failed to copy file". Also happens if I try to move something with the usb stick.
Now, I've tried quite a few things. I tried root explorer, and just like es file explorer, it also cannot change the permission to rw (now it's stuck on ro). I tried different apps (stickmount and USB OTG Helper), and both didn't make it work. They did however, make my hdd (NTFS) work, as added some other folders that had the proper permissions, because without those apps, my hdd would show up empty in the usbstick folder with es file explorer.
USB diagnoses app gives me a positive response too...
What in the world could be the problem???
P.S.
My system:
Kernel: AK Kubo (stable 4.2.20)
ROM: AOKP Jellybean mr1 milestone 2
GSM Samsung Galaxy Nexus

Djalaal said:
I recently bought OTG USB cable so that I could use my usb stick or external hdd for additional storage (since we dont have an external mini sd card slot). When I connect my usb stick (FAT32), it appears in settings-->storage properly. The ES File Explorer app also shows a new folder storage/usbdisk... So everything looks fine. But I can only read to it, not write... the app gives me the error "failed to copy file". Also happens if I try to move something with the usb stick.
Now, I've tried quite a few things. I tried root explorer, and just like es file explorer, it also cannot change the permission to rw (now it's stuck on ro). I tried different apps (stickmount and USB OTG Helper), and both didn't make it work. They did however, make my hdd (NTFS) work, as added some other folders that had the proper permissions, because without those apps, my hdd would show up empty in the usbstick folder with es file explorer.
USB diagnoses app gives me a positive response too...
What in the world could be the problem???
P.S.
My system:
Kernel: AK Kubo (stable 4.2.20)
ROM: AOKP Jellybean mr1 milestone 2
GSM Samsung Galaxy Nexus
Click to expand...
Click to collapse
OK, after spending quite alot more time trying things, I found something that solved the problem. Quite silly of me I didn't think of it earlier, (I was convinced the kernel supported it properly) but yeah... I upgraded my kernel to the experimental version (Diamond). It's newer. Apparently, USB support was not so strong in the "stable" version. This newer kernel can even read NTFS without third party apps, but not write to them. Hope this helps anyone.

Related

please help me make usb OTG work with usb stick

so i installed JB(jellin MS2), and installed faux kernel, and installed sticmount.
the device seems to mount, and i use es file explorer to navigate to /sdcard/usbstorage/sda (i believe)
so i can USUALLY see my files in there, and sometimes i cannot. it seems to depend on what usb stick i shove in there.
but as of the moment, i have failed on every attempt to copy large amounts of data to the stick.
i am trying to copy nandroid to the stick, and last time i tried it copied them to the sda folder on the phone and they never went to the stick.
just wondering if there is a better and more reliable way to do all of this. and if anyone else is having problems like i am

Mac File Transfer ?

I'm currently using aokp build 3. I have tried everything from MTP to PTP, use debugging to non usb debugging, Kies, Android File Transfer. Nothing seem to work. The only thing seem to be working is Airdroid which is really slow for any large file. So how do you guys transfer file on a custom rom with mac?
hyperx136 said:
I'm currently using aokp build 3. I have tried everything from MTP to PTP, use debugging to non usb debugging, Kies, Android File Transfer. Nothing seem to work. The only thing seem to be working is Airdroid which is really slow for any large file. So how do you guys transfer file on a custom rom with mac?
Click to expand...
Click to collapse
i am experiencing the same issues and have been for a very long time. when i first got the phone i could connect with Android File Transfer but no longer . I am running stock rooted. When I have experienced with ROM FILES, I have just put my SD card into an adapter and put it directly into my computer. This is also the safest way to transfer the file without risking corruption.
DOES ANYONE KNOW HOW TO GET MTP/PTP or UMS to work?? UMS would be preferable for me.
Here's a quick fix for doing a half-assed job of what you need. I am a fellow Mac user.
Download "SGS3 Easy UMS" (google it) APK to your phone. Install.
Connect your device to your computer. If you have Kies, it'll start saying "Connecting..." but it'll never connect.
Pop open SGS3EUMS, and click "Mount UMS" or whatever it's called.
Make sure you're rooted (shoulda said this before).
Boom. Pop open your finder. Send files to your external SD.
---
Can't do Internal SD, or get KiesMac or even Andriod File Transfer working after flashing CM10, or any custom ROM. Stock worked beautifully.

[Q] Duplicate folders when phone plugged into computer

hey guys,
My issue is that when I plug my s3 into the computer. When I access the SD card from the file explorer on the computer, it comes up with duplicate folders. Just wanted to see if anyone else is having this issue. However if i browse the files through astro on my phone it looks just fine. I'm running AOKP Build 4.
So I saw this & hoped there was some extra infoon tthis topic cause I had the exact same issue. It was agrivating because I didn't know which folder to save to. Some of the folders had different data in them
My solution? I put the sd card in a multi reader & poof - no duplicate files.
BAD NEWS
Now my phone doesn't know where to find the sd card. Oh, it reads & writes just fine. I can see it in SUFBS & Astro file manager, copy files to/from with ease. But go to the gallery & I only see the phone memory. Ring tones are only found in phone memory. Downloading from any Web browser & it only goes to internal storage & I can't point to ext sd, but sms backup & restore saves to it just fine. My friend thinks the drive letter got changed but I have no idea how to find or change that in the phone. I's sad.
Sgs T-999
Cm10 nightly 10062012
Ive never seen this myself. But i only connect to my computer via usb when using Odin. For file transfers i use SwiFTP wireless transfer.
Search for sgs3 easy ums here on xda. Itll let you mount external sd as UMS rather than MTP which is probably whats causing it (maybe because you are non stock?).
Also you may have to reformat the card at this point. Not really sure about that though.
Sorry i dont have more for you, but in the future try those two apps i mentioned. Find Swiftp bt searching the themes and apps section.
Sent from my SGH-T999 using xda app-developers app

CM13 + USB Drive?

First I backed up all my apps onto a USB drive using Titanium Backup, than I updated my Nexus 7 to CM13. I can't get the USB drive to mount to the system properly so I can restore all my apps. I've done all the things that TB needs such as enabled root access, etc... The system recognizes the drive, and I can browse the files using the CM13 popup. But it doesn't seem to be mounted to the file system in a way that TB can find it (using detect -> whole device). I also can't find by using a 3rd party file manager to browse the system. I tried using stickmount. It complains about the SU that CM uses, and it never has the toast message whenever a driver is inserted, even though I set it to open stickmount by default whenever a USB drive is inserted. Installing all the apps I need will take up most of the file space, so I can't just copy over all of the TB backedup files.
chris.arney said:
First I backed up all my apps onto a USB drive using Titanium Backup, than I updated my Nexus 7 to CM13. I can't get the USB drive to mount to the system properly so I can restore all my apps. I've done all the things that TB needs such as enabled root access, etc... The system recognizes the drive, and I can browse the files using the CM13 popup. But it doesn't seem to be mounted to the file system in a way that TB can find it (using detect -> whole device). I also can't find by using a 3rd party file manager to browse the system. I tried using stickmount. It complains about the SU that CM uses, and it never has the toast message whenever a driver is inserted, even though I set it to open stickmount by default whenever a USB drive is inserted. Installing all the apps I need will take up most of the file space, so I can't just copy over all of the TB backedup files.
Click to expand...
Click to collapse
Have you tried this:
http://forum.xda-developers.com/xposed/modules/mod-usb-marshmallow-1-0-t3272072 ?
That's for the phone showing up as a drive on a computer. I can get that to work. I was trying to get a USB drive connected directly to the phone over OTG and mounted in the filesystem. I finally gave up.
chris.arney said:
That's for the phone showing up as a drive on a computer. I can get that to work. I was trying to get a USB drive connected directly to the phone over OTG and mounted in the filesystem. I finally gave up.
Click to expand...
Click to collapse
It also solved OTG mounting issues on my N7, that's why I suggested the module. Well, don't give up
How?
I'm on cm13 and I'm having the same problem with opening files and I installed what you recommended but I don't see any options when hooking up a USB drive over otg cable. I have been able to see the device in the included file manager enabling root but I seem to lose it and it's not helpful. What do I do? Thanks
Edit: it's definitely installed properly as it does remember my PC connection preference.

usb charging will not turn off ??

I'm trying to transfer some photos from my note 7 to a usb stick and it keeps triping back to usb charging??
I have...
in developer options
usb debugging "on"
networking
usb configuration
MTP selected
when I plug the stick in I pull down the notification page when I tap "supplying power via usb"
I try to select "Transferring media files" ( MTP) for 2 seconds in engages then automatically switches back to "Supplying power via usb " ??? I can't transfer anything ???
any ideas on this one ??
skyeking69 said:
I'm trying to transfer some photos from my note 7 to a usb stick and it keeps triping back to usb charging??
I have...
in developer options
usb debugging "on"
networking
usb configuration
MTP selected
when I plug the stick in I pull down the notification page when I tap "supplying power via usb"
I try to select "Transferring media files" ( MTP) for 2 seconds in engages then automatically switches back to "Supplying power via usb " ??? I can't transfer anything ???
any ideas on this one ??
Click to expand...
Click to collapse
Your usb stick is not a computer, it does not need to read your phone with MTP protocol.
The phone should provide power to the USB stick, exactly as it is saying, so that your phone can read the contents of the USB stick.
Get a File Manager like FX to transfer items to and from your USB stick.
I have the same problem. It always says usb charging and I could not transfer pictures to my usb using the usb-c/usb adaptor. I tried using file manager app but I get confused with all these asking permissions and I end up unable to transfer anything. I never had this problem with my S7 edge before. I tried connecting the phone directly to the mac using android file transfer but could not connect. I would really appreciate if someone can give us a more detailed steps on how.
edsol said:
I have the same problem. It always says usb charging and I could not transfer pictures to my usb using the usb-c/usb adaptor. I tried using file manager app but I get confused with all these asking permissions and I end up unable to transfer anything. I never had this problem with my S7 edge before. I tried connecting the phone directly to the mac using android file transfer but could not connect. I would really appreciate if someone can give us a more detailed steps on how.
Click to expand...
Click to collapse
jcadduono said:
Your usb stick is not a computer, it does not need to read your phone with MTP protocol.
The phone should provide power to the USB stick, exactly as it is saying, so that your phone can read the contents of the USB stick.
Get a File Manager like FX to transfer items to and from your USB stick.
Click to expand...
Click to collapse
I tried that I have ES file explorer like "edsol" said it won't mount the stick because it's in charging mode
I tried several time to switch it off of charging mode but always flips back after a few seconds.
if "edsol" has the same problem then I guess it's not just my phone........there must be a fix for this??
I had the same situation, and I had to format the USB stick in "exFAT" to be able to copy files to it. NTFS is supported only for reading, but not for writing.
So check that your USB stick is not NTFS.
FAT32 and exFAT are the same, the difference is that exFAT doesn't have the FAT32 limitations (maximum file size of 4 GB)
Goremael said:
I had the same situation, and I had to format the USB stick in "exFAT" to be able to copy files to it. NTFS is supported only for reading, but not for writing.
So check that your USB stick is not NTFS.
FAT32 and exFAT are the same, the difference is that exFAT doesn't have the FAT32 limitations (maximum file size of 4 GB)
Click to expand...
Click to collapse
Thanks...but it is exFat......I did a reformat just incase.......still a no go ??
you probably need some file manager to do what you want, Android sucks when it comes to manual file management.
Anyway I have ES file explorer loaded on my phone, so plugged in USB c to USB2 adapter, put in 32 GB FAT32 memory stick, ES file exp. open up and I transferred couple files from stick to SD, just to test it if it works. It did, but you would have to pay me a lot of money to do it on regular basis, so awkward. I just plug my phone to PC and use windows click and drag to move files around. Now I run into problem, when I was transferring my pictures, couple days ago, F???? Android lock my sd card for no reason (F????? Google is messing SD cards on phones since at least kitkat). I had to fix sd and take write protect off, but I'm sure it's Google not Samsung. Anyway, it works like a charm, just watch out for Google's broken permissions showing it's ugly head.
What File Explorer are you using? Some of them can't write to external storage because of Marshmallow permissions.
"My Files" of Samsung worked for me while "ES File Explorer" didn't work (before root)
I used ES File Explorer, I'm sorry I said wrong in my previous post, I moved couple files to phones DCIM folder, not SD, it's so awkward and I just wanted to see if it works at all, it did, I confirmed the files were moved, before deleting them. So actually I don't know if it would work on SD card, but I would never ever transfer files like that: I would use my pc laptop for direct transfer between SD and stick. So the concept I described works, but as far as permissions to particular folders go, they're so messed up and don't even want to test it again against SD. In theory it should work at least for transfer to root directory, since card is not protected, may not work for transfer to folders created by other programs due to permissions. At some point I may have to root this phone just to fix those stupid permissions, but I haven't used Marshmallow until now, so not sure how broken those permissions are here.
pete4k said:
I used ES File Explorer, I'm sorry I said wrong in my previous post, I moved couple files to phones DCIM folder, not SD, it's so awkward and I just wanted to see if it works at all, it did, I confirmed the files were moved, before deleting them. So actually I don't know if it would work on SD card, but I would never ever transfer files like that: I would use my pc laptop for direct transfer between SD and stick. So the concept I described works, but as far as permissions to particular folders go, they're so messed up and don't even want to test it again against SD. In theory it should work at least for transfer to root directory, since card is not protected, may not work for transfer to folders created by other programs due to permissions. At some point I may have to root this phone just to fix those stupid permissions, but I haven't used Marshmallow until now, so not sure how broken those permissions are here.
Click to expand...
Click to collapse
I've tried a few file programs including My Files..........but the usb stick isn't recognized because it stays in charging mode
so can't even attempt to transfer anything....this is frustrating !!

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