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.
Click to expand...
Click to collapse
How do you do that?

VanDerFlaxen said:
How do you do that?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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."

[Q] cant copy files to the phone from pc

i have, on sprint, the galaxy s3, NOT the i900 or whatever that means. mine says model number SPH-L710
i have it rooted with the phantom rom installed, with superuser permissions. however, not sure what happened
but for some reason, i can no longer transfer files, any files, from my pc to the phone. this includes pictures,
music, documents--anything. the files are my personal files and music i ripped, and never had a problem
copying before, and all this just started. unless im hooking it up wrong, which i doubt--using the usb cable from
pc port to the phone directly. it does show the charge icon, and in the usb settings, usb debugging is checked
and also checked on media device (mtp). another option which isn't checked is camera (ptp), unchecked.
what happens when i try is, on the pc i get a box that pops up and says--do you
want to copy (file name), your device might not be able to play or view the file. i do have 2 options, to skip or copy
anyway. well when i click copy, it goes through the motions, but its not on the phone. no matter what file i try, a
pic, small wav file, etc....just will not copy and no
where one the phone is the file. another issue that seems to be going on is, the best way i can
explain it is--when the phone is hooked up to the pc, is it possible for whatever it is thats running to make the
phone able to receive copied files, go to sleep? because another error message i get when trying to copy is
it sits there for awhile, then eventually says "device not responding, disconnected" and on the phone itself its
on the main home screen like i wasn't doing nothing.
ive rebooted the phone several times, same results--nothing wil copy to the phone....
sooo, what am i missing?
update--- since that post, something else now happened. the phone flashed on, saying "sd card not mounted"
when it is. it is in the right way and all that, but when i go into settings/storage...at the very bottom it says
sd card, insert sd card
lol...so what the heck is that all about? the card is definatelly in there, and astro file manager shows some
files on the card but........

Well, it could be a couple of things.
First of all, make sure you have the Samsung USB drivers installed. It could be a corrupt driver, but probably not. It won't hurt to reinstall it, anyway, just to be sure. Here's link:
http://downloadcenter.samsung.com/c...nt_L710_GSIII_Samsung_USB_Driver_v1_4_6_0.exe
Make sure your phone is not locked when you're trying to transfer files. If you have a PIN or a PATTERN lock enabled and it locks, it will disable the MTP application from trasferring files.
Try reflashing the ROM as well. Maybe the MPT application got corrupted somehow?
As a last resort, you can restore your phone to stock unrooted status and see if that resolves the issue.

I had the same thing happen to me. I fixed the problem by going into device manager and clicking on to mtp and updating it..
Sent from my SPH-L710 using xda app-developers app

I had the same thing happen to my SdCard and now it is kinda dead... before yours gets damaged, remove it and insert in a PC with a sdcard reader. Run command prompt (Start>Run>cmd and enter) and do a scan disk or check disk by entering "chkdsk /x /f driverletter:" use the drive letter assigned to the sdcard then enter, let it do it's thing.
This will fix the file system and you shouldn't more problems with the sdcard not being read. As for the MTP, do as the other member said and try updating the MTP device in in device manager or uninstall the drivers and install directly from Samsung.

[Q] Can't connect to PC as a disk drive, only as Portable Device - is this normal?

I've had my HTC One X for 2 days and I want to ask if this is a normal behavior or something is wrong. When I connect the phone to PC via USB I can access the files only using Windows Explorer. It appears there under "Portable Devices" as "HTC One X". When I double-click there is folder called "Internal Storage" with my files in it. But, is it possible to mount the phone as a regular disk drive (with disk letter assigned, for example E:\), so I can browse the files using Total Commander? I've tried different USB ports but without success. I believe my drivers are working fine.
I've been looking over similar topics here but everyone was talking about looking into "Connect to PC" option in Settings. But I don't have such an option in my Settings! Is it normal? My old Desire had it and I could choose Charge Only/Disk Drive/USB Tethering etc.
When I plug my One X to the computer, the "USB Connected" notification pops up. But when I click on the notification, there are only Hotspot, USB network and Bluetooth options. Nothing related to connection type. See troll.sk/random/scr_usb.png
I've tried turning on/off the USB debugging, but it's still the same.
Is this normal behavior of Jelly Bean 4.1.1?
Edit: when I access Clockwork mod there is an option to mount the USB Drive. When I select this option the internal storage of the phone magically appears in my computer as a regular disk drive just as I wanted. But it's possible only in recovery mod, never happens in normal interface.

Yes... It has been changed after jb update.

Jakkub00 said:
I've had my HTC One X for 2 days and I want to ask if this is a normal behavior or something is wrong. When I connect the phone to PC via USB I can access the files only using Windows Explorer. It appears there under "Portable Devices" as "HTC One X". When I double-click there is folder called "Internal Storage" with my files in it. But, is it possible to mount the phone as a regular disk drive (with disk letter assigned, for example E:\), so I can browse the files using Total Commander? I've tried different USB ports but without success. I believe my drivers are working fine.
I've been looking over similar topics here but everyone was talking about looking into "Connect to PC" option in Settings. But I don't have such an option in my Settings! Is it normal? My old Desire had it and I could choose Charge Only/Disk Drive/USB Tethering etc.
When I plug my One X to the computer, the "USB Connected" notification pops up. But when I click on the notification, there are only Hotspot, USB network and Bluetooth options. Nothing related to connection type. See troll.sk/random/scr_usb.png
I've tried turning on/off the USB debugging, but it's still the same.
Is this normal behavior of Jelly Bean 4.1.1?
Edit: when I access Clockwork mod there is an option to mount the USB Drive. When I select this option the internal storage of the phone magically appears in my computer as a regular disk drive just as I wanted. But it's possible only in recovery mod, never happens in normal interface.
Click to expand...
Click to collapse
Yep this is normal. Google is changing the way that device storage is handled, and as a result this new way has been rolled out by HTC in their JB update. The device will be mounted as a MTP/FTP device instead of the traditional USB storage method.
There is no way that you can mount your device as an USB storage (as E:\ drive, etc.)
BUT, there are a few other ways that you can do this:
1] If you have rooted your phone, you can mount your phone as a USB storage via clockworkmod recovery.
2] If you have NOT rooted your phone, you can download an application called AIRDROID from the market. This will wirelessly allow you to mount your phones USB storage.(But works ONLY on wifi)

anks257 said:
Yep this is normal. Google is changing the way that device storage is handled, and as a result this new way has been rolled out by HTC in their JB update. The device will be mounted as a MTP/FTP device instead of the traditional USB storage method.
There is no way that you can mount your device as an USB storage (as E:\ drive, etc.)
BUT, there are a few other ways that you can do this:
1] If you have rooted your phone, you can mount your phone as a USB storage via clockworkmod recovery.
2] If you have NOT rooted your phone, you can download an application called AIRDROID from the market. This will wirelessly allow you to mount your phones USB storage.(But works ONLY on wifi)
Click to expand...
Click to collapse
4] or just using Bluetooth

[Q] Any way to access as a drive in CM 7.2 with USB & Computer?

Stock always popped up a message when I connected it to the USB on my computer, and I'd like to be able to move files onto/off of it with CM 7.2..
Is there a configuration setting somewhere I am missing?

Settings -> storage and select mass storage iirc on gingerbread. But cm should show a notification prompting you to enable mass storage.

Ok, notification prompt.. I never paid much attention to those little things you get to by dragging down the top, found it, thanks..

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 !!