Computer freezes for a split second randomly when phone is charging through USB - Epic 4G General

On my work computer I notice that when my phone is plugged into usb and charging, the computer will tend to freeze up for a split second, sometimes several times a minute. Anything I do during the freeze is lost, such as a keystroke wont be registered.
It also happens more frequently when my phone is doing more cpu/memory intensive things like playing music.
Its a small low power PC. Could this be maybe a power issue with the phone eating too much power through USB?

redspeed said:
On my work computer I notice that when my phone is plugged into usb and charging, the computer will tend to freeze up for a split second, sometimes several times a minute. Anything I do during the freeze is lost, such as a keystroke wont be registered.
It also happens more frequently when my phone is doing more cpu/memory intensive things like playing music.
Its a small low power PC. Could this be maybe a power issue with the phone eating too much power through USB?
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Click to collapse
Sounds like a low amount of available RAM. When it "freezes" for a second, look at the case/tower. Is the hard drive activity light rapidly blinking? Your PC may be "swapping" or "paging" http://en.wikipedia.org/wiki/Paging
If it's a Windows Vista or Windows 7 machine, try plugging in a USB flash drive and using the ReadyBoost feature. See if that helps out.

Its got 4gb of ram so that shouldnt be the issue I would think. The odd thing is its always worked fine before. When I updated to EL30 it seems like thats the exact moment it started occurring.
I guess Ill find an extra wall charger to bring in instead.

redspeed said:
Its got 4gb of ram so that shouldnt be the issue I would think. The odd thing is its always worked fine before. When I updated to EL30 it seems like thats the exact moment it started occurring.
I guess Ill find an extra wall charger to bring in instead.
Click to expand...
Click to collapse
Despite the amount of physical RAM installed, there's always the possibility of a ton of apps/processes running in the background, hogging up resources. Just because a machine has 4GB RAM doesn't mean all 4GB are always available. With Windows, that's seldom the case. I'd double-check the "Processes" tab in the Task Manager to get an idea of available RAM vs in-use RAM. Even if it doesn't apply to this situation, it's still a good thing to know in case you want to squeeze out more performance from your system.

Related

Backlight coming on for no reason whilst on charge

I've got my backlight set to turn off after 5 minutes when on external power, 3 minutes when on battery. I have recently got a new battery but that's not relevant since this happened with the old one too.
When the device is charging via USB it frequently turns the backlight on by itself. I do have activesync running but I don't actually sync anything. It happens at least once every 20 minutes, so it gets annoying overnight.
Can anyone think why this is? I don't have the computer interacting with it, nor do I touch it at all...
It could be ActiveSync being the annoying little M$ thing it is... it will run itself automatically (why M$ feel this is appropriate is anyone's guess) thus making your device think that it's in use.
That's my 2 cents, seems logical. I always close the lid when on charge as the same happens and I'm worried it'll burn out the screen.
Really sorry for the double post... I pay for a 10mb connection and most of the time I'll be lucky to get 60k and their best solution is for me to downgrade!!!! This country sucks a$$!!!! Moving to BT

Jasjar shuts down, doesnt power up without external power

I have an Imate Jasjar (1.12.38 WWE)
It is giving a rather weird problem. When the power is less than about 40%, the device shuts down (slowly fading screen) if any intensive program is run or multiple apps are opened. After this when I try to boot the device, it shows me the blue Imate spalsh screen and slowly fades off and shuts down.
However the moment I plug it into the usb port of my computer or the external charger, it boots up and works perfectly fine even if I remove the power, till it shuts down again that is.
Another way to simplify my statement could be that the device is showing the power status higher than it actually is. Which explains the booting up with external power.
Any suggestions as to how I can rectify this. This is really troublesome as the phone often shuts down while Im out and I cant really do anything except keep the device charged to the brim at all times to keep it functioning.
Another issue I have is that the device when connected to Windows XP via activesync gives an error "USB device not recognized"
I have tried using different computers and USB cables, but the problem is persistent. But if I keep it connected for long, it sometimes gets connected and syncs. The device has no problem getting charged due to the faulty USB connection though.
Any suggestions on this front?
Thanks in advance.
Sounds like you need to buy a NEW BATTERY.
OK, Thanks.
Any idea about the USB error?
I have very similar behaviour from my Uni (technically an SPV M5000 from Orange Switzerland), but somehow, I doubt it's the battery which is at fault.
I also see the powering down, with fading screen, and then refusing to come back up again (display fades out again on splash screen), but I've observed it with various levels of charged battery. It has happened at 85%( according to both the standard battery meter, and ilauncher meter) as well as at 30% and various levels in between.
If I plug in it, I can boot the device, and after that, the battery runs down normally. I doubt this would work if the problem really were the battery.
I've noticed that the problem arises most often when I'm accessing the internet, either by 3G or wlan. So far, it has never happened when I wasn't actively using the device (meaning I've never taken it out of my pocket and found it in this annoying state).
Any ideas?
Btw, I'm currently using Laurentius WM6 V7 ROM, but I observed the same behaviour with Ivans WM5 (I forget which version) before.
For the USB problem you could try connecting it and opening the device manager (right click My Computer, Properties, Hardware, Device Manager) and deleting the "Unknown Device" that pops up when this happens. Remove the cable, reboot.
This fixed it for me, but I had to do it again a few weeks later.
Oh, and a new battery is the other problem. I got one last week for about £5 from Ebay.
By the way, my Exec seem not to realize when will my batt full. I see 100%, and I wait for more than 1 hour later, but the LED doenst change green, it remains amber. What the heck with my fone?? My batt or my fone fault??

TF starts when pluging in powercord

I have an TF 32GB + docking.
I have shutdown my transformer completey and removed it from the docking.
When I now plugin the powercord to charge it, the tab always starts up. I dont want that. Is that normal behaviour?
Mine does that as well. I may be wrong ,but i think it charges faster when its turned off, so i often turn it off then plug it in. I need to get into the habit of plugging it in , and then turning it off, I guess.
nexxexium said:
I have an TF 32GB + docking.
I have shutdown my transformer completey and removed it from the docking.
When I now plugin the powercord to charge it, the tab always starts up. I dont want that. Is that normal behaviour?
Click to expand...
Click to collapse
It appears to be normal behavior.I know about 5 people with TFs and mine. All turn on when you plug the charger...
Skickat från min ASUS Eee Pad TF101
nexxexium said:
I have an TF 32GB + docking.
I have shutdown my transformer completey and removed it from the docking.
When I now plugin the powercord to charge it, the tab always starts up. I dont want that. Is that normal behaviour?
Click to expand...
Click to collapse
You can't see if AT is fully charged without see the screen so... that's completely normal, dock has a led that tablet hasn't...
-you choose to shut your tablet down
-you plug power in
-now the tablet acts on its own and powers on
then they should also put a small light on the tablet. my god i'm starting to regret my purchase.
if this is by design then they are completely retarded at asus
Annoying... yes... big deal... no.
Skickat från min ASUS Eee Pad TF101
How is this annoying in any way? It's not like it'll charge a significant amount slower with the screen off, and with the screen off there isn't a single way to see it's on if you're 12 and won't want your parents to find out it's turned on after bed time.
You people will ***** about ANYTHING.
My iPhone and the iPad did the same thing,
Plug the power cord in and then shut down, this way it will remain off..
nexxexium said:
-you choose to shut your tablet down
-you plug power in
-now the tablet acts on its own and powers on
Click to expand...
Click to collapse
So do this instead (still 3 steps):
-you plug power in
-now the tablet acts on its own and powers on
-you shut your tablet down
Better?
i ***** if i feel like it
Its one extra annoying thing. (Like you cant connect to hidden wifi)
These things are designed by a retard.
I don't know whether there is a technical reason for the power on so I will abstain from judging it to be a mental impairment...
nexxexium said:
Like you cant connect to hidden wifi
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Click to collapse
Woah, really?
Sent from my GT-P1000 using Tapatalk
nexxexium said:
i ***** if i feel like it
Its one extra annoying thing. (Like you cant connect to hidden wifi)
These things are designed by a retard.
Click to expand...
Click to collapse
I have 2 waps and both are hidden. I can connect to both.
nexxexium said:
Like you cant connect to hidden wifi
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Click to collapse
Not true. My work wifi SSID isn't broadcasted and I was able to add it to my list and connect easily.
As for the original question...every Android and iDevice I've seen exhibit this behavior.
Maybe you could direct your anger and energy towards the failing economy and make some progress there?
so to reverse only one step (plug then switch off) is for genius
Tigrev said:
So do this instead (still 3 steps):
-you plug power in
-now the tablet acts on its own and powers on
-you shut your tablet down
Better?
Click to expand...
Click to collapse
No, it's one step too many. If I run the battery down on my tablet (which I do fairly frequently), then want it to charge as quickly as possible, I shouldn't have to power it back down every time to achieve that.
I'd like to see this behavior changed, and I'm glad to find I'm not the only one irritated by it.
Don't get me wrong -- love the tab, and own two. That doesn't mean there's no room for improvement, though. There's no logical reason to have the tab turn on instantly on charging. (Seeing the charge level doesn't count as a logical reason, because if you're worried about the charge level, you likely don't want to reduce the charging speed to find out the answer -- you likely want it charging as fast as possible until you're ready to leave the charging point.)
I would guess the behavior likely hails from phones, where it actually makes sense. With a phone, you want it active to receive calls all the time, and so starting when you plug it in is logical. With a tablet, it's simply not. Just something Google forgot to correct in Honeycomb, is my guess.
nexxexium said:
These things are designed by a retard.
Click to expand...
Click to collapse
And, apparently, operated by the retarded.
Settings -> Wireless and Networks -> Add WiFi Network.
knoxploration said:
No, it's one step too many. If I run the battery down on my tablet (which I do fairly frequently), then want it to charge as quickly as possible, I shouldn't have to power it back down every time to achieve that.
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Click to collapse
Well OK, then skip the last step. The display will go right back off by itself within the screen timeout. No big deal. My timeout is set to 2 minutes, so I'd estimate that might add a minute or so to the net charging time, worst case.
Can we consider this a thoroughly dead horse?
Tigrev said:
Well OK, then skip the last step. The display will go right back off by itself within the screen timeout. No big deal. My timeout is set to 2 minutes, so I'd estimate that might add a minute or so to the net charging time, worst case.
Can we consider this a thoroughly dead horse?
Click to expand...
Click to collapse
No, we can't. The display powering off doesn't power off the tablet. It still runs, and hence still charges slower than it should be. With the tablet running (even with the display off), it charges significantly more slowly, as evidenced by the battery graph which gives a clear indication of charge rate.
And from my experience, it occasionally doesn't charge at *all* when running, even when using the factory charger and factory charging cable. (Not sure why, but it's happened a couple of times, and powering off starts it charging.) That glitch makes it even more important that it doesn't start up when plugged in to charge.
knoxploration said:
No, we can't. The display powering off doesn't power off the tablet. It still runs, and hence still charges slower than it should be. With the tablet running (even with the display off), it charges significantly more slowly, as evidenced by the battery graph which gives a clear indication of charge rate.
And from my experience, it occasionally doesn't charge at *all* when running, even when using the factory charger and factory charging cable. (Not sure why, but it's happened a couple of times, and powering off starts it charging.) That glitch makes it even more important that it doesn't start up when plugged in to charge.
Click to expand...
Click to collapse
All you did was ***** before you got your TF, now you have it and all you do is still *****. You are everything that's bad about the world.
Because people seem to have their panties in a bunch over this one I checked charging rate powered off vs turned on, and it's only 2% less per hour. That's an insignificantly small difference.
I said it before and I'll say it again, you guys will ***** about ANYTHING.
EDIT: The 2% was measured including the extra battery drain I get from starting up the tablet to check battery level every hour.

[Q] Unusual death

Hiya,
So my colleague gave me an USB stick for me to copy some photos on to, and it seemed to of killed my N7.
Here's how it all went down:
I have an Intel MBP and when I plugged the USB drive in, it didn't recognise it (it didn't even show up in the Disk Utilities). And yes, it was directly connected to my laptop, no USB hubs involved.
I tried even the other USB port, and even with a USB hub, no difference.
I've installed a program to write onto NTFS formatted drives, and OS X natively can read just about all the Windows file formats (in my experience any way). And so, just for the giggles, I popped the drive into my updated and rooted N7 via a Motorola USB OTG cable (which has worked for a long time and no flaws) and then my N7 could read it. No worries.
I copy all of files into a separate folder on the drive, and then pop it back into my MBP. It then detects it. Very strange. I copy over some files, and unplug. Later on in the day, I remember that I forgot some files, so I plug it back in, and my laptop starts going into some crazy lag mode as if it just got Parkinson's. Unplug the drive, and then it freezes (i have to do a force shut down) and when it boots back up, it's seriously FUBAR'd.
I felt the drive belonged in the pits of Mordor with what havoc it was causing.
I didn't plug it back into anything else after that. Told my colleague and he did a virus scan on his Windows work comp: nothing.
Battery dies on the N7 (ie, ran out), and when I go to charge it. Nothing. Okay, something happens. The backlight goes on, but no battery symbol. Just see some sort of light leek (which I had before, but nothing dier.)
It's a 32GB CC0K "generation".
Any clues, tips?
Thanks for any and all help!
TL;DR version:
A) Big long story about MacBook Pro and a wonky USB drive.
B) Separately, "Battery dies on the N7 (ie, ran out)", N7 won't start up.
Not clear from story if (A) has anything at all to do with (B).
Try charging battery for a while? Hold Power button down for 20 seconds afterward? If not, unplug battery connector, wait 10 seconds, plug it back in, charge device, try to reboot?
There have been a number of similar sounding stories on here. Some of them seem to self-resolve after charging, some of them are reported to respond to various voodoo operations (e.g. battery disconnect/reconnect), some of them the person making the report never checks in again. I suppose that leaves open the possibility that some devices never turn back on?
It isn't obvious if there is a single syndrome or mutiple problems that exhibit similar symptoms.
good luck.
Thank you for shortening it!
I tend to go a bit overboard with details and what not.
Ok, will try having it in the charger and see what happens.
Thanks!
I also find it strange that a USB drive could be so destructive. However, if you do have a wonky USB drive, what chance of is there for its faultiness doing harm like I just described?
Don't forget to make sure the internal battery lead isn't disconnected!!! It happens..
Ok, plugged it, it sat in for a while, held the power button for a few seconds longer (along with the bottom volume rocker) and it turned on!
So, thanks for the help!
Must be the 100th time I've read about grouper's funny little "death" because of drained battery. Hasn't happened to me but if it ever does I'm prepared and properly informed lol
Sent from my Nexus 7 using XDA Premium HD app
My tablet had 55% power at night WiFi/BT off and on sleep I woke up and it was so dead it wouldn't even turn on. Just glitches here and there with the battry
Sent from my Nexus 4 @1.67 GHz on Stock 4.2.2

Device went "black" - reset/restart?

Folks,
kids got a T580 tablet which, by this morning, all of a sudden didn't wake up anymore. They've been playing games, apparently the device was at 21% battery. Now I can't enable display anymore. Restarting by holding POWER and one of the Volume buttons pressed doesn't work either. Connecting the device to a Linux laptop via USB however shows me a Samsung MTP device connected. Unfortunately rebooting via adb doesn't work, adb claims the device is unauthorized and (with the display off) I also can't change anything about that. Device is not rooted, running latest OTA update firmware. I'm running out of ideas... any suggestions on how to eventually revive the device? Known behaviour?
Thanks in advance,
Kristian
Known? not to me, but I'm new to the A.
Could it just be dead battery? If wall charger doesn't charge it, try usb port linux box, it's a slow charge that way, very slow, but it does work.
Let us know updates, unusual problem...
AsItLies said:
Could it just be dead battery? If wall charger doesn't charge it, try usb port linux box, it's a slow charge that way, very slow, but it does work.
Click to expand...
Click to collapse
Thanks for your feedback, greatly appreciated. Unfortunately, battery seems out here. More insights: The device has WiFi on and actually also an IP address assigned. Connecting it to the laptop, I see an MTP and a modem device, and the device also shows up in adb devices. Even hard reboot using POWER +VOL-DOWN apparently seems to work, by then (still connected to the laptop) the MTP and modem device will disappear for a few moments to finally reconnect. Just all the time the device stays dark, I can't even do anything with it using adb because I can't get it authorized without a display connected.
Really strange. I have never so far seen something like that. Any more insights welcome. Especially, is there a way to enable something such as screen mirroring (I have a chromecast around) without physical access to the device? It's pretty difficult to do anything right now without being able to interact with that thing...
kr428 said:
Thanks for your feedback, greatly appreciated. Unfortunately, battery seems out here. More insights: The device has WiFi on and actually also an IP address assigned. Connecting it to the laptop, I see an MTP and a modem device, and the device also shows up in adb devices. Even hard reboot using POWER +VOL-DOWN apparently seems to work, by then (still connected to the laptop) the MTP and modem device will disappear for a few moments to finally reconnect. Just all the time the device stays dark, I can't even do anything with it using adb because I can't get it authorized without a display connected.
Really strange. I have never so far seen something like that. Any more insights welcome. Especially, is there a way to enable something such as screen mirroring (I have a chromecast around) without physical access to the device? It's pretty difficult to do anything right now without being able to interact with that thing...
Click to expand...
Click to collapse
Pretty much seems like a screen failure. If it's kids I'd say likely been knocked and probably needs the screen connector/s reseating.
Try to open back cover it's very easy,after that disconnecte all of flix cables (lcd ,battery camera,...etc) and connect them again finally press power button it will work 100% .i did it many times
Sent from my SM-G965F using Tapatalk
Wakeel2014 said:
Try to open back cover it's very easy,after that disconnecte all of flix cables (lcd ,battery camera,...etc) and connect them again finally press power button it will work 100% .i did it many times
Sent from my SM-G965F using Tapatalk
Click to expand...
Click to collapse
I will kind of second this. The devices have a tendency to freeze or what we call deep cycle discharge. And many times a simple battery disconnect solves these issues.
We have this issue on the s8 s8+ and pretty much any device it can but more of a pain on a non removable battery
A ittle late and maybe too simple, but my wife's did this and the brightness had somehow gotten turned completely down, to the point of not seeing anything. I fixed it by randomly swiping left to right until I hit the bar.

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