Develop Bugs

[Q] I Can't access MicroSD through the PC

Hi. I'm new to the forums and android. Sorry if this is not the correct place to post this.
When I connect my phone to the PC via USB I only see a few folders and none of the media files in the phone. I've tried accessing through Media Link and Windows Explorer and nothing.
Weird thing is that I see some folders and photos, like the photos taken with the RetroCamera Application.
I have been able to access my files before, it just suddenly stopped working.
Any ideas?

Try using different USB [if already did]
Go to your Hardware devices, change the MTP devices drivers to USB drivers manually [update them choose them manually from list]
Hopefully you'll get it working again

First,you should make sure that your MicroSD's file system is OK.

hpzf89 said:
First,you should make sure that your MicroSD's file system is OK.
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Click to collapse
How do you do that?

VanDerFlaxen said:
How do you do that?
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Can you access the files with your phone's file browser?if you can do that,the sd card might be OK,then you can check the OS.But if you can't,you may have to format the sd card.

this is normal if USB mode is set to windows media sync, its some kind of security feature I think.
you have 2 options:
1. attempt to access via the moto web phone portal as above, you need to set the USB mode to 'motorola phone portal'. but this I find is a bit hit and miss, you can manually connect using this address:
http://192.168.16.2:8080/webfolder
this can be entered into start -> run, in windows explorer, or mapped directly as a network drive
2. go into USB options and change the mode to 'USB mass storage' this will mount the SD card as a proper removable drive and show all the files properly. This option may not be available depending on what firmware is loaded onto the phone though!
to change USB mode swipe the status/menu bar at the top of the phone down, and tap 'USB connection'

hpzf89 said:
Can you access the files with your phone's file browser?if you can do that,the sd card might be OK,then you can check the OS.But if you can't,you may have to format the sd card.
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Yes, I can access the files through the phone browser.
rubjonny said:
this is normal if USB mode is set to windows media sync, its some kind of security feature I think.
you have 2 options:
1. attempt to access via the moto web phone portal as above, you need to set the USB mode to 'motorola phone portal'. but this I find is a bit hit and miss, you can manually connect using this address:
this can be entered into start -> run, in windows explorer, or mapped directly as a network drive
2. go into USB options and change the mode to 'USB mass storage' this will mount the SD card as a proper removable drive and show all the files properly. This option may not be available depending on what firmware is loaded onto the phone though!
to change USB mode swipe the status/menu bar at the top of the phone down, and tap 'USB connection'
Click to expand...
Click to collapse
I've used the moto web portal and I was able to access my files, however, it draggs when moving files. Also, the phone was in USB Mass Storage mode the whole time.
Today I connected my phone to my laptop at the office and even though the Motorola Media Link did not pick up my media files, I was able to access them through Windows Explorer. So I'm leaning towards a driver issue with my home PC.

ah ok, maybe the drivers haven't fully installed, check in the device manager to see of you can spot anything. you could also try changing the usb mode to a different setting then back again, see if that kicks the pc into installing the correct drivers

I re-installed the drivers, but still no go.
What surprises me the most is that I can't access or even see some of the folders in my SD Card. The Motorola Media Link recognizes that there is something in the card, but can't tell what it is.
Googling for days, I found this, but I don't know how to do it or even it is related to my problem:
"Finally i solve the problem. And everything in my ext sd card is back. Problem is emmc folder (means external sd card in cyanogenmod 7) not permitted for write and read.
I use QtADB Terminal for editing the directorys permition.
Step 1: type "su"
Step 2: go to root directory. If you type "ls" and can you see "emmc" you are right position.
Step 3: "chmod 777 emmc" or "$chmod 777 emmc" (for write and read permitted.)
Step 4: Reboot the phone and everythings are back in External Sd Card in EMMC
And Windows detect 2 Storage Drive now. One of 6GB Internal Sd Card, One of 8GB External Sd Card. And i can use my Music player Power AMP.
Everythings perfect for me now. Cyanogen is great ROM but this permision problem should bu fixed. Because i spend three day for solve this problem."

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...
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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] can't see titanium folder on PC via USB MTP

I've got a rooted stock (Jassy v5 kernel) N7 2013 and have done a titanium backup.
I'm trying to copy it to my PC and when I connect in MTP mode (developer options unchecked) the Titanium folder doesn't appear, it comes up as a 0b size file.
Titanium itself works and I can see the folder on the nexus itself (via es explorer etc.)
Is this some kind of new permissions issue? Never had this before have always been able to see my titanium folder via USB....

I tried for awhile to get it to show up on my PC but I couldn't get Windows 7 to see that directory. I ended up enabling Google Drive backup in Titanium. Then I created a backup from Google Drive on my PC.

cheers might try your workaround
would much rather have local USB though (speed, data caps etc.)

Sometimes mtp on windows gets confused and doesn't display everything
Try reboot PC and tablet and try again

I had the same exact issue. I was able to see most directories, but TitaniumBackup was missing. I ended up using AirDroid to perform a wireless transfer of the backup files to my PC. Also using Win7/MTP. Hope this helps.

iirc you have to look for a folder named /sdcard/sdcard or /sdcard/0/
There's a titanium backup folder in there, the one in /sdcard/TiB doesnt seem to hold anything. Either way its a 4.3/TiB issue.
Sent from my Nexus 4 using Tapatalk 4

wintermute000 said:
cheers might try your workaround
would much rather have local USB though (speed, data caps etc.)
Click to expand...
Click to collapse
You can still transfer the backup files to your PC over USB cable with
Code:
adb pull /sdcard/titaniumbackup c:/TitaniumBackup

Transfer Files from PC

I've been trying to transfer the files I took from my Galaxy S4 and saved them to my computer, to my G3. When I connect the G3 to my computer, I only see 2 files in the "Internal Storage". It won't recognize my SD Card either. Is there a setting I may be missing, that will allow me to see other folders? I can't copy and paste anything to my Internal Storage. Thanks for your help.

AnaMayShun said:
I've been trying to transfer the files I took from my Galaxy S4 and saved them to my computer, to my G3. When I connect the G3 to my computer, I only see 2 files in the "Internal Storage". It won't recognize my SD Card either. Is there a setting I may be missing, that will allow me to see other folders? I can't copy and paste anything to my Internal Storage. Thanks for your help.
Click to expand...
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Try airdroid from play store

jaythenut said:
Try airdroid from play store
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Hmmm...I tried to upload the pics from my desktop and I get this message. "Failed to upload. No write permission on sd card."

I have to turn on the camera mode for it to transfer. It won't recognize anything in MTP mode. :/

I wish I could do all this without using AirDroid. It won't show the phone in MTP, but in PTP it will, but only 2 folders on the whole phone, no sdcard. And I can't directly put anything on the phone.

I had a problem with my D855 MTP mode as well. Folders are all there, but some files are either missing, or reduced in size. I cannot copy them out to PC. In these folders, I also cannot copy files into them. What I did to resolve the problem, is to reboot the phone with USB cable attached to the PC. Then, before the phone can complete its boot up sequence, I will have some time to copy the files in and out. It is really quite troublesome.

MTP troubles?
This is what's worked for me (D850/at&t):
Install LG United Mobile driver for ADB support
Enable USB debugging in developer options on phone
Verify MTP mode is selected
Connect USB and accept RSA signature on phone
I know that ADB isn't particularly necessary for MTP, but in my experience with roms on the old Nexus (for which I used Google's ADB driver), it was a sure bet every time. gl

crasher said:
I had a problem with my D855 MTP mode as well. Folders are all there, but some files are either missing, or reduced in size. I cannot copy them out to PC. In these folders, I also cannot copy files into them. What I did to resolve the problem, is to reboot the phone with USB cable attached to the PC. Then, before the phone can complete its boot up sequence, I will have some time to copy the files in and out. It is really quite troublesome.
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Click to collapse
ae10u said:
This is what's worked for me (D850/at&t):
Install LG United Mobile driver for ADB support
Enable USB debugging in developer options on phone
Verify MTP mode is selected
Connect USB and accept RSA signature on phone
I know that ADB isn't particularly necessary for MTP, but in my experience with roms on the old Nexus (for which I used Google's ADB driver), it was a sure bet every time. gl
Click to expand...
Click to collapse
Thanks for the suggestions guys. But it seems like my phone refuses to be recognized in MTP mode. And only partially recognized in PTP. I think I may have to do a hard reset this weekend. :/

I went back to Best Buy yesterday and returned my phone and got another one. And now my file transfers work. I guess I had a defective phone. I'm glad everything got back to normal.

I also had the problem that I didn't see my SDcard, but when I disabled debugging mode I suddenly could

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.
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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.
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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 !!