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[Q]Kitkat and USB mass storage mode

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By Cavey.co.uk, Senior Member on 4th May 2014, 12:51 PM
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2nd April 2016, 10:26 AM |#71  
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Quote:
Originally Posted by ramsdaro

A little for your information everyone

I installed the cyanogen mod 12 which claimed to have usb mass storage enabled on it.
It does and this works perfectly and I am very pleased with the performance. Just a simple option when you connect the device to change to usb storage.

http://forum.xda-developers.com/gala...od-12-t2943934

Bit of a quote-resurrection I confess, but could you elaborate please?

I'm running CM12.1, and have been trying for weeks to get true UMS (usb mass storage) to work, like it did back on my blade & Galaxy S2....
I've searched out apps and mods to enable it, and so far, no joy.

For me, CM12.1 "seems" to offer UMS - When I plug the phone in to my PC via usb cable and it mounts via MTP, I can then navigate to Storage Settings, and from there access a menu that gives the options for MPT, Camera, and UMS.
However, when I enable the UMS option, I can't actually read or write to the SD card in windows (using Win-7), so it's like the option is there, but disabled...
I see what I would expect (namely, the phone storage disappears from Windows Explorer, and the SD card appears as a flash drive), but when you navigate to the "flash drive", it appears as an empty drive with no data on it.

If you'd be so kind, would you explain in excruciating detail exactly what you did to enable true UMS on the S4 using CM12/12.1?

Many thanks!
 
 
2nd April 2016, 12:57 PM |#72  
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Quote:
Originally Posted by BigJim.T32

Bit of a quote-resurrection I confess, but could you elaborate please?

I'm running CM12.1, and have been trying for weeks to get true UMS (usb mass storage) to work, like it did back on my blade & Galaxy S2....
I've searched out apps and mods to enable it, and so far, no joy.

For me, CM12.1 "seems" to offer UMS - When I plug the phone in to my PC via usb cable and it mounts via MTP, I can then navigate to Storage Settings, and from there access a menu that gives the options for MPT, Camera, and UMS.
However, when I enable the UMS option, I can't actually read or write to the SD card in windows (using Win-7), so it's like the option is there, but disabled...
I see what I would expect (namely, the phone storage disappears from Windows Explorer, and the SD card appears as a flash drive), but when you navigate to the "flash drive", it appears as an empty drive with no data on it.

If you'd be so kind, would you explain in excruciating detail exactly what you did to enable true UMS on the S4 using CM12/12.1?

Check if this app helps:
http://forum.xda-developers.com/andr...-beta-t3240097
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2nd April 2016, 11:15 PM |#73  
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Quote:
Originally Posted by GokulNC

Check if this app helps:
http://forum.xda-developers.com/andr...-beta-t3240097

Brilliant!

Thanks so much Gokul, I've left detailed feedback in your original thread for the app, to try & help you further refine it, but as-is right now I'm really happy I've finally got UMS back!
Thanks again mate, I'm very grateful.
3rd April 2016, 05:21 PM |#74  
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hey sorry I am not longer running CM but if I recall you are doing everything right for it to work.
Only thing I can think of i that I thought I had to format my sd card to a specific format, try searching around for that. hopefully this help.
17th May 2016, 07:13 PM |#75  
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Finally, an app works for our model. Mass storage mode
http://forum.xda-developers.com/show....php?t=3240097
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external sd card, kitkat, root, samsung s4, usb mass storage

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