Adam Alldredge [:AdamA][Inactive] Reporter
	Description • 9 years ago

Description:
When USB storage is turned on the computer cannot see the SD card in the device.


Repro Steps:
1) Update a Aries to 20150616020609
2) Make sure there is some media on the SD card
3) Turn on "USB Storage" in settings
4) Plug phone into computer
5) Observe connected devices on computer

Actual:
The phone is not visible on computer

Expected:
It is expected that users are able to access their files through a USB connection

Environmental Variables:
Device: Aries 3.0 (Full Flash)
Build ID: 20150616020609
Gaia: 62ba52866f4e5ca9120dad5bfe62fc5df981dc39
Gecko: ce863f9d8864
Gonk: 2916e2368074b5383c80bf5a0fba3fc83ba310bd
Version: 41.0a1 (3.0)
Firmware Version: D5803_23.1.A.1.28_NCB.ftf
User Agent: Mozilla/5.0 (Mobile; rv:41.0) Gecko/41.0 Firefox/41.0

Repro frequency: 10/10
Link to failed test case:  https://moztrap.mozilla.org/manage/case/6072/
See attached: logcat

	Peter Bylenga [:PBylenga]
	Comment 1 • 9 years ago

[Blocking Requested - why for this release]:
Functional regression that fails smoketests

Requesting a window.

	Brogan Zumwalt [Inactive]
	Comment 2 • 9 years ago

Last Working Build:
Device: Aries 3.0
Build ID: 20150612054732
Gaia: 9f36b711af7597a6a32471c3305cf1e2d6947d39
Gecko: 0093691d3715
Gonk: 75c7e6ca80d0c7a53f346ecfcde2343be95808c9
Version: 41.0a1 (3.0)
Firmware Version: D5803_23.1.A.1.28_NCB.ftf
User Agent: Mozilla/5.0 (Mobile; rv:41.0) Gecko/41.0 Firefox/41.0


First Broken Build:
Device: Aries 3.0
Build ID: 20150614233012
Gaia: 1bf2da102560481748ff3f6202fbed5c4daa5832
Gecko: 3c26bef95d54
Gonk: 75c7e6ca80d0c7a53f346ecfcde2343be95808c9
Version: 41.0a1 (3.0)
Firmware Version: D5803_23.1.A.1.28_NCB.ftf
User Agent: Mozilla/5.0 (Mobile; rv:41.0) Gecko/41.0 Firefox/41.0


Gecko Pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=0093691d3715&tochange=3c26bef95d54

Gaia Pushlog:
https://github.com/mozilla-b2g/gaia/compare/9f36b711af7597a6a32471c3305cf1e2d6947d39...1bf2da102560481748ff3f6202fbed5c4daa5832

Blocked from providing deeper window due to bug 1133074

Bug 1171556 could be a possible cause as UMS by default was working to display SD card on working build. For clarification, both Adam and I are testing on Linux (Ubuntu 12.04)

	KTucker [:KTucker][Inactive 3/4/2016]
	Comment 3 • 9 years ago

Doug, can you take a look at this please? We can't go further on this window due to bug 1133074. Thank you

	Doug Sherk (:drs) (inactive)
	Comment 4 • 9 years ago

This seems to be caused by a Gaia patch that landed in the last day. Bisecting it now.

	Doug Sherk (:drs) (inactive)
	Comment 5 • 9 years ago

Ok, I misunderstood. There's no regression here. We intentionally switched to MTP in bug 1171556. You have to install the Android File Transfer app to use MTP. [1]

We opted to do this because internal storage isn't visible with the UMS option set on the Aries device. You can switch back to UMS and it should work.

[1] https://www.android.com/intl/en_us/filetransfer/

	Naoki Hirata :nhirata (please use needinfo instead of cc)
	Comment 6 • 9 years ago

We are using MTP by default:http://www.wikiwand.com/en/Media_Transfer_Protocol
For mac you would need to use "Android File Transfer" to use MTP

If you are using linux you will need to add MTP support in order to see the device.
For windows, you should have mtp by default for vista on.  
If for some reason you are on XP, you will need Windows Media Player 10.

	Johan Lorenzo [:jlorenzo]
	Comment 7 • 9 years ago

Duplicate of a blocker