USB drive used as adopted storage frequently disconnected - Nexus Player Q&A, Help & Troubleshooting

I've connected a 128GB SanDisk Glide USB drive to my Nexus Player and formatted it as internal storage. This worked fine, and I was able to install several apps to it and run them with no problems.
However, when the player is left for a while, it invariably gives an error message saying the drive has been disconnected, and the apps are no longer available. Removing and reinserting the drive brings them back, until a little while later when the same thing happens again. This problem doesn't seem to occur when apps on the drive are being used.
Has anyone else experienced this? I'm wondering if it might be an issue with a power-saving feature. Moving to an externally-powered USB hub hasn't helped.

I had similar problem, i spent days troubleshooting it with no luck till i got a premium $$ usb drive...problem fixed. Can't tell if that's the root cause though.
Sent from my Nexus 5 using Tapatalk

Definitely seems to vary by device - a MicroSD in a genric card reader failed in the same way, but an 8GB Verbatim Pinstripe drive seems to be working fine. I'm going to pick up a larger-capacity Verbatim drive and see how that copes - will post an update here, as it may be useful for others to know which drives behave and which don't.

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Mass Storage problems, mounting/umounting

Most all my searches returned something about rooting, how to mount via console, etc, so I started a new thread. If someone knows of one off hand, please LINK to the thread in your post. I'll ask a mod to lock or delete this one IF and WHEN a good answer is found... thanks
I'm using froyo, and up until yesterday mounting the sdcard via my mac's usb connection was painless. Gallery works fine while not connected, and copying files between the mac and the nexus is flawless also.
the problem comes when it's time to use the sdcard again on the mac. 'disable mass storage' dialogue just hangs, and after 30 seconds or so i just pull the battery. i've tried:
umounting fomr the mac first, then quitting usb mass storage on the nexus
and
quitting mass storage on the nexus THEN umounting on the mac
doesn't seem to matter, it just makes the nexus hang, and a battery pull is required to make it usable again.
any tips ?
also, if this is a common problem, or a bug, please let me know and i'll ask for a thread close/lock/whatever.
use a new kernel, from either wildmonks, intersectraven, or pershoot (in the persianown thread)
I just looked at the three kernels mentioned above and they are all UV/OC kernels. (Maybe I missed something) Is there one that is on .34 that not but has the USB mount/unmount problem fixed?
I've had this exact same problem before, unmounting would always freeze. But I also would experience a hang when copying over a very large file from my computer to the phone via USB. Turns out in my situation the SD card had gone bad (it produced some other weird behaviors when not used with the phone), and using a different card immediately solved my problems.
Not sure if this is the same in your case, but it wouldn't hurt to try a different card and see if you experience the same issue.
bullyfrog said:
I just looked at the three kernels mentioned above and they are all UV/OC kernels. (Maybe I missed something) Is there one that is on .34 that not but has the USB mount/unmount problem fixed?
Click to expand...
Click to collapse
Hit up wildmonks, and see if he can make you one. Even with OC, it won't OC unless you set it too. Otherwise it's at 998mhz.

[Q] My Nexus 4 doesn't like being plugged into my PC

Hi all
Finally got my lovely Nexus 4
Rooted it to jellybean 4.2.1 and then started installing a few bits.
I've run into some problems with the usb connection though. It will frequently appear as if there's no internal memory, or it'll let me in the memory and won't let me do anything. For example, I was putting some files over onto it and the box in Windows popped up as usual with 'copying xyz to internal memory' but just hung, didn't make any progress. Similarly deleting files is troublesome and rarely works, I have to resort to rebooting my machine, reinstalling the Nexus 4 drivers and constantly unplugging and replugging the device.
I had the last straw this morning when I tried to move some photos from the device to my PC which aren't opening, giving me the error 'Windows Photo Viewer can't open this picture because the file appears to be damaged, corrupted or too large'. They are normal photos at ~2.5mb in size and work perfectly on the phone.
Any help would be appreciated as it's very annoying now!
Cheers
Anyone?
Are you transferring a large amount of files? The new mtp protocol seems to have trouble with that, at least on windows. I haven't seen the "no internal memory" error you mention but I have had constant corrupted files and crashes while trying to transfer +1000 photos for instance (I'm using stock, unrooted), to the point of making it impossible to finish. See also this bug report here. What you describe may or may not be this issue, but if it is I have no idea what the fix is; I've personally given up.

[Q] Problems with SD storage since update to Lollipop

Model: SCH-I545
64gig SD Card
Verizon
All stock/no root
Verizon pretty much forced me recently like many others to update to Lollipop. Once updated, I immediately backed up and did a factory reset on the device. Once it was back up and running, all seemed to be well with the world. It did seem to be a little hotter than normal but it seems overheating is a typical problem these days.
I noticed the issue the following day when I went to load videos and pictures back on to my SD card. They were uploaded via USB just fine but they showed as corrupted in Gallery.
I started trying to take pictures and maybe 1 out of 5 would actually show up. I thought it might be Gallery so I switched to Photos. Same thing. Tried using other cameras with the same results. I ended up factory resetting a second time and formatting the SD Card again as well but no fix. Then the other night I noticed that two of my apps have that "we're broken" icon on them and that they were installed on the SD Card so the issue seem to be connected with that, yet the SD Card works fine. I can plug it in the computer and use it without any issue but when it comes to the camera storing photos or video on it or apps using it, it refuses to work.
Tried contacting Samsung about it but they are useless when it comes to support it would seem so a friend told me to try posting here and maybe someone would have an idea of what is going on.
Thanks, guys.
Try formatting your sd card. Sometimes that helps.
Lennyz1988 said:
Try formatting your sd card. Sometimes that helps.
Click to expand...
Click to collapse
I formatted it twice.

USB Transfer Causing Shield to Crash?

I just received my Shield TV today. 16GB model should that make a difference.
Things I've done: Updated firmware, formatted MicroSD as internal storage, installed kodi and got it fully running, installed a few other apps, sideloaded amazon video. Overall, a pretty good day. Until I decided to move over a few isos for PPSSPP via thumb drive.
Using ES File Explorer I attempted a simple copying to the internal drive. Multiple times at random points I get a message saying that the copy has failed, and a retry button. Did that a handful of times thinking eventually it'd pan out and that maybe something like daydream kicking in was causing the file transfer to stop momentarily and throw the fail code.
Then the Shield TV crashed and rebooted. That resulted in some interesting problems. Some of the apps I have installed were still there, some vanished as if they were never there. The Shield could no longer read my usb drive, yet everything showed up fine when I plugged it into my laptop. Daydream was crashing anytime it was called on.
So, I rebooted it again. All the apps showed back up and after a few minutes of settling it showed the MicroSD as being part of internal storage as opposed to its own entity.
Question is, what could have caused this? And, more importantly, how can I prevent it from happening again?

Kodi + External Storage

Hey can anyone help me with a fix? I have struggled with limited space on my Nvidia Shield 16gb. So i have usb 3.0 drive to expand storage and to use as internal storage. However Kodi has performance issues and lag if i am using my usb external for storage expansion. Sorry if this has been answered already. Can someone point me in the right direction....is this a simple fix? haven't been on XDA in a few yrs.
Thanks in advance.
Tsoflyyup said:
Hey can anyone help me with a fix? I have struggled with limited space on my Nvidia Shield 16gb. So i have usb 3.0 drive to expand storage and to use as internal storage. However Kodi has performance issues and lag if i am using my usb external for storage expansion. Sorry if this has been answered already. Can someone point me in the right direction....is this a simple fix? haven't been on XDA in a few yrs.
Thanks in advance.
Click to expand...
Click to collapse
If you are talking about a usb flash drive yes it will be slow a better option is using a usb attached hard disk drive
I think it will also depend on which drive you have. Here are some recommended USB flash drives.
https://nvidia.custhelp.com/app/answers/detail/a_id/4334
Yeah i used one of the recommended usb flash drive..the lexar one. I noticed that the overall performance is sluggish. Not only does Kodi lag... navigation around the menus stalls periodically. More freezes (wait/force close) messages.
For now i just move all my data back to internal until i can find a solution
Tsoflyyup said:
Yeah i used one of the recommended usb flash drive..the lexar one. I noticed that the overall performance is sluggish. Not only does Kodi lag... navigation around the menus stalls periodically. More freezes (wait/force close) messages.
For now i just move all my data back to internal until i can find a solution
Click to expand...
Click to collapse
Did you ever find a solution? I just bought a Shield and am experiencing the same thing.
I had the same problem with nvidia and kodi until I bought one
SANDISK EXTREME PRO USB 3.1 SOLID STATE FLASH DRIVE 256gb so far all good I do not see performance delay in kodi nor in the system I have already 3 months using as storage compatibility and everything is still okay so far greetings
I have always had similar lag issues using external mechanical hdd. Usually I just use old laptop hard drives in an enclosure. An odd thing that has also happened is that Kodi has over time (takes about a year) killed my hdd to the point that a PC won't even low level reformat it. I am on my second drive now and after about a year, it is starting to fail as well.
One thing that is very noticeable, and possibly the culprit, is the amount of drive activity going on when Kodi is just sitting idle on the home menu. This is also the main reason I haven't tried an ssd, because if these are write cycles and not just read cycles, I'm pretty sure it will trash an ssd.
I have read in other threads that people using much nicer drives than I am are having the same issue of an eventually dead hdd/ssd. I have a feeling this will also apply to flash sticks as well, so I'd warn to not toss too nice of a drive on there!

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