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[Q] Screen On with "USB Device Disconnected"

7 posts
Thanks Meter: 2
By davevi, Junior Member on 19th March 2012, 03:32 AM
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My Galaxy Tab 7.7 turns on every few minutes and displays a message for a moment in the lower right corner. The message is "USB Device Disconnected".

The device is not connected to any USB device.
This has been happening for many weeks now.
I've tried to turn the USB Debug option on but that didn't change anything.
I have not rooted the device.
I have not flashed the device.
I am running only stock applications from the market.

Does anyone else have this issue?
It's maddening because the device constantly turns itself on. At night I either remove it from my bedroom (the display lights up the room when it comes on) or turn the device upside down on the table so I can't see it when it comes on.
19th March 2012, 07:13 PM |#2  
Yarda's Avatar
Senior Member
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yes, i have the same issue

no idea what the reason is
19th March 2012, 07:44 PM |#3  
Thanks Meter: 5
Same issue.
21st March 2012, 06:16 AM |#4  
OP Junior Member
Thanks Meter: 2
One Added Note
One item to add...
It appears that if the unit is charging it does not have this problem. This makes logical sense as the USB is connected, albeit to the wall outlet.

I'm going to wait until ICS - which is due here in Thailand at the end of this month. If that doesn't fix it I will contact Samsung.

Living here in Asia makes taking things back for repair very difficult as the many small but authorized vendors aren't set up for this, the language barrier adds heavily to the issue, and finding an English speaking official Samsung office is quite difficult.

I will monitor the forum to see if a fix arrives before my software update.

Thanks everyone!
24th March 2012, 03:58 PM |#5  
Junior Member
Thanks Meter: 1
Same problem here. When this happen for me the mobile network disconnects, I am thinking that it may be some problem with the mobile network card...
When connected to wifi this is not visible although i might get the usb message.
But on 3g i loose all connection sometimes only for a second but sometimes for up to a couple of minutes...

Sent from my XT910 using Tapatalk
26th March 2012, 03:08 AM |#6  
OP Junior Member
Thanks Meter: 2
I wanted to add some more information...

I happened to remove my carrier's SIM a week ago and the "USB device disconnect" error continues at the same rate.

I guess my next question is how do you contact Samsung support?

Do they have a Tablet support phone number?

I don't care which country the support line is located within, as long as it's English-speaker focused.
26th March 2012, 10:55 PM |#7  
Junior Member
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very annoying to lose mobile network all the time
13th April 2012, 05:24 PM |#8  
Junior Member
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I changed Galaxy Tab 7.7 (3G Version) three times, all three tablets had same problem.... any idea to fix it?
13th April 2012, 09:50 PM |#9  
Junior Member
Thanks Meter: 1
I think the problem gets worse if the tablets not been rebooted for a while.
But after reboot I think mine is a bit more stable.
How is it for the rest of you?

---------- Post added at 10:50 PM ---------- Previous post was at 10:49 PM ----------

I also find it weird that you have the same problem with three tablets, but at the same time it seems that very few of us are affected???
14th April 2012, 06:49 AM |#10  
Junior Member
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I called Samsung and they said they never have complaints on this issue.... anyway, i got three devices from different stores have the same problem.. I think the issue is the rom. That problem hopefully can be solved after ICS upgrade...
14th April 2012, 09:19 AM |#11  
Thanks Meter: 7
Same problem; not so often but it happens once in a while.
I don't know if it is causing the instability that I have noticed with this device but it is kinda weird.
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