Automation screen on off help - Galaxy Tab General

So i placed my galaxy tab 7 in the dash of 370z.. its amazing i love it and i would never ever switch away from it. the only issue that im currently having is that when i turn the car on the tab gets power for a quick second then loses power while the car is turning over then has power again. Since the car gets that power for that quick second the screen turns on then quickly turns back off (i use screen off util) and doesnt come back when car is on. i need to find a way to make sure the screen is on when the car is on and the tab has power

Can't you wake the tab up manually
Sent from my GT-I9100 using xda premium

Is there some sort of ROM or app that allows front soft keys for wake functions
Sent from my rooted Nexus1

Not that I know of
Sent from my GT-I9100 using xda premium

Im Sure there is.
BOCA or unofficial beta cm7 port should have these options
Ill also look, as my car radio was stolen last week, and I might need the tab in there now

im trying to avoid manually having to wake because well frankly that would be annoying... i can see it come on but when i crank i need it to not shut off.. i was hoping if i could find a delay on the screen shut off maybe

If it's not already, if you wired the outlet your charger is plugged into so it is hot at all times it might not do what it's doing, but it still might because when you crank the car the battery voltage may drop below the point that the charger cuts out. In that case a large capacitor like many use on big stereo systems may solve your problem; just ask your local stereo shop about them.

Related

Nexus 7 keeps turning off at random intervals

This has been going on for about a week or so.
At first I kept finding it off in the morning after charging, and then it became more common. Mostly happens when the screen is off but not always, I've had it turn off twice whilst I'm using it for example. A couple of times it has needed a long press to restart it before it will turn back on. Right now it has turned itself off and will not turn back on.
Battery has never fallen below about 50% throughout so it cant be that. It doesn't get heavy use so I'm not convinced its overheating. I had a look through the app list and none of them seem to be obvious candidates for the problem, and if i cant get the thing to turn back on I cant even test that.
I think this one is going back to HMV asap but I was wondering if anyone has any ideas for me to avoid the problem with its replacement, or if anyone is having the same problem. Its a shame as I've been really enjoying my Nexus.
Clem
clem2k3 said:
This has been going on for about a week or so.
At first I kept finding it off in the morning after charging, and then it became more common. Mostly happens when the screen is off but not always, I've had it turn off twice whilst I'm using it for example. A couple of times it has needed a long press to restart it before it will turn back on. Right now it has turned itself off and will not turn back on.
Battery has never fallen below about 50% throughout so it cant be that. It doesn't get heavy use so I'm not convinced its overheating. I had a look through the app list and none of them seem to be obvious candidates for the problem, and if i cant get the thing to turn back on I cant even test that.
I think this one is going back to HMV asap but I was wondering if anyone has any ideas for me to avoid the problem with its replacement, or if anyone is having the same problem. Its a shame as I've been really enjoying my Nexus.
Clem
Click to expand...
Click to collapse
Hi, I had the exact same problem and ordered a replacement from the play store. I never found a way to fix it, I would recommend you just get a new one from HMV. I hope this helps
This actually just started happening to me yesterday on my 3 day old 16GB Nexus 7. I kept mine plugged into the AC all weekend, and yesterday watched it shut down itself once. Thought it was a fluke and just turned it back on...left it running overnight...pick it up this morning and it's turned itself off yet again. I guess I'll have to return this one before it completely doesn't turn on anymore!
Bah. Thought that might be the case.
2 days off charge (and some time on charge) and mine still wont turn on.
Definitely going back for replacement.
Elsydeon, it sounds like you should do the same. Took about 4 or 5 days to go from irregular to brick.
I seem to be getting the same thing... Once every day or two I pick up my Nexus and the screen won't turn on, I hold the power button and it starts booting up. I haven't had this while charging (maybe because the screen is on while charging??)
For those of you who traded in for a replacement, did this solve the issue for you?
I was getting this, but was using one of those magnetic cover/cases. If I wrap the cover round the back of the N7 whilst using it, the magnet in the case/cover is sometimes strong enough to turn the device off from the back!
Mine has powered off twice now
clem2k3 said:
This has been going on for about a week or so.
At first I kept finding it off in the morning after charging, and then it became more common. Mostly happens when the screen is off but not always, I've had it turn off twice whilst I'm using it for example. A couple of times it has needed a long press to restart it before it will turn back on. Right now it has turned itself off and will not turn back on.
Battery has never fallen below about 50% throughout so it cant be that. It doesn't get heavy use so I'm not convinced its overheating. I had a look through the app list and none of them seem to be obvious candidates for the problem, and if i cant get the thing to turn back on I cant even test that.
I think this one is going back to HMV asap but I was wondering if anyone has any ideas for me to avoid the problem with its replacement, or if anyone is having the same problem. Its a shame as I've been really enjoying my Nexus.
Clem
Click to expand...
Click to collapse
Just wondering as well like the last guy if swapping for a new one helped this issue.
I actually have looked at the battery data and think somewhere the nexus has gotten a power spike that turns it off but not sure if that definitely is the issue.
If it is, perhaps it's where we are plugging in or a failure with the AC plug?
Ideas? I've attached a photo. I hope it uploaded.
Thanks.
nyhunter77 said:
Just wondering as well like the last guy if swapping for a new one helped this issue.
I actually have looked at the battery data and think somewhere the nexus has gotten a power spike that turns it off but not sure if that definitely is the issue.
If it is, perhaps it's where we are plugging in or a failure with the AC plug?
Ideas? I've attached a photo. I hope it uploaded.
Thanks.
Click to expand...
Click to collapse
I have exactly the same issue, taking it back to pcworld.
Ian Morrison
HTC OneX, G-Tablet www.smokecig.co.uk
Me too
unless i hear different from anyone here, going to exchange it for a new one today ... only been 2 weeks from Staples.
Actually going through the data, it's happend the last 3 days now.
I wake up to the white battery symbol.
By the way, for future ref, is bootloading warranty killing? I am in the process or restoring now just in case.
Thinking of getting their replacement plan now too because of this episode.
Thank goodness for titanium backup
Nexus 7 32GB Display Keep Turning Off
My Nexus 7 32GB tablet's display continues to turn off at random times also. It happens while I'm watching a video in landscape. But then I stop the video, go to the home screen, and it still turns off. I already replaced one last week and now its happening to my new one. Anyone got answers? I'm going to call google device support today. Maybe if enough people call, they'll do something about it. Their # is 888-836-3987.
Still happens
Otoniel76 said:
My Nexus 7 32GB tablet's display continues to turn off at random times also. It happens while I'm watching a video in landscape. But then I stop the video, go to the home screen, and it still turns off. I already replaced one last week and now its happening to my new one. Anyone got answers? I'm going to call google device support today. Maybe if enough people call, they'll do something about it. Their # is 888-836-3987.
Click to expand...
Click to collapse
My NEW 32 tab worked out fine for a night and woke up today to the full battery indicator and tablet off again.
I have a new insight though, somehow the battery temp is rocketing to 100 and I'm guessing that is when it shuts off.
It may be because I am using SetCPU to limit my CPU speed to 300mhz when the screen is off. Maybe the tablet is trying to update all my apps while I am sleeping? It shouldn't use so much power though.
I'm going to try to create a new command to let it use it's whole CPU as long as it's on AC and screen off and see what happens tonight.
Happened overnight again. No insights? Does anyone think my nexus will finally brick sometime?
I don't know anyway of testing what is up with this thing? Thanks.
Nexus 7 Screen Keeps shutting off - Fixed
To those experiencing issues with their Nexus 7 screen randomly shutting off.
I just received one for Christmas, and thought this dang thing sucks. The screen would stay off and only show for half a second when I click the lock button to turn it back on.
The issue what the case. The the case, when folding back, contains a small piece of metal on the click. This little connection, thought not direct, causes the screen to shut off. I've tested it out multiple times just to make sure.
Again the FIX is, keep metal away from the back of the nexus, it doesn't like anything that can cause a magnetic field. Even if the metal is enclosed by something.
nexus 7 screen turns off
For those of you who are experiencing intermittent screen display going to sleep mode or turning off you can fix it by removing your tablet cover. Some third party tablets come with different strength magnets stitched inside the cover. The magnet is used to activate the nexus tablet smart cover functionality. If you flip the cover to the back of the tablet the magnetic field may cause the tablet to think it should turn off while in use. Get rid of your cover reboot your tablet and notice that the screen will stop turning off. Hope this helps.
Hi, I also had similar problems with my Nexus 7. After removing the back of the unit, I saw that the battery was nearly unplugged. I simply popped the connector in and voila! no more SOD, turning off, nothing.
So, the Nexus was probably turning itself off because there was randomly no more power comming from the battery.
Here's a link on how to remove the back shell : http://www.ifixit.com/Teardown/Nexus+7+Teardown/9623/1
Look at Step 4.
That Fixed It!
StefGou said:
Hi, I also had similar problems with my Nexus 7. After removing the back of the unit, I saw that the battery was nearly unplugged. I simply popped the connector in and voila! no more SOD, turning off, nothing.
So, the Nexus was probably turning itself off because there was randomly no more power comming from the battery.
Click to expand...
Click to collapse
I was researching before going to get my Nexus 7 replaced today as it also started having this issue. After reading your post, I took your advice and removed the back to find that my battery connection was also barely intact! Thus it would lose power any time it was bumped slightly to that side. Now that the connection is securely in place, I've had no more problems!! Thanks to you StefGou!!!
Hey guys. A few hours ago I encountered the same said problem. I woke up to find the battery was depleted so I charged it. It turned on by itself and stated that I have 6% battery left. As I wait, suddenly the screen was like distorted and give me static sound then shut off. Numerous trials later end up the same. So I just put on the charger thinking to let the battery full. To my surprise, there was no indicator that my N7 is charging. I just leave it charging and left. About an hour I got back it still nit charging. I boot the N7 and it still on 6% battery. So I followed you guys handsomely instructions to remove the 3rd party cover and now my N7 is back. Thanks guys. But I wonder why it is happening now? I've been using the cover since forever.

[q] tablet froze. Won't turn on.

Hello. I've had nexus for a few weeks now. Tonight i was surfing the Web and the screen started blinking on and off rapidly. It finally shut off. Now it will not boot. I tryed getting into the bootloader by holding volume up and down and power. I get nothing. If I plug it into the charger... The battery icon comes on the screen but that's it. If my nexus fried? Is there anything else I can do?
Sent from my SPH-L710 using xda app-developers app
mattdott said:
Hello. I've had nexus for a few weeks now. Tonight i was surfing the Web and the screen started blinking on and off rapidly. It finally shut off. Now it will not boot. I tryed getting into the bootloader by holding volume up and down and power. I get nothing. If I plug it into the charger... The battery icon comes on the screen but that's it. If my nexus fried? Is there anything else I can do?
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
Screen blinking rapidly on and off? I'd call Google. I'm sure they would send out a replacement.
Sent from my Nexus 10 using Tapatalk 2
Yeah I called them. I they are sending a replacement. I have to pretty much pay for a new one untill they get the old one back.
This really sucks. What could this be?
Sent from my SPH-L710 using xda app-developers app
I've had my nexus freeze while using chrome a few times. All I do is hold the power button until it reboots. Has worked for every time.
The flickering screen does not seem normal. Glad google is giving you a replacement.
cowabunga said:
I've had my nexus freeze while using chrome a few times. All I do is hold the power button until it reboots. Has worked for every time.
The flickering screen does not seem normal. Glad google is giving you a replacement.
Click to expand...
Click to collapse
Yeah, holding the power button till it turns on works for me all the time.
mattdott said:
Yeah I called them. I they are sending a replacement. I have to pretty much pay for a new one untill they get the old one back.
This really sucks. What could this be?
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
You have to pay for another first? Just got mine, & wondering about this?
Sent from my Nexus 7 using Tapatalk 2
I've had the exact same problem as OP. I was browsing in Chrome when the backlight started flickering. Wearing headphones but with no sound, I was able to hear faint static that correlated with the darkness of the screen (when the screen was dim mid-flicker, noise was produced). I had it set to a specific brightness setting, so I switched to automatic using the drop-down settings menu. The problem persisted. I did not exit Chrome. I tapped the power button which gave a normal enough looking fade out. After about 5 seconds I tapped the power button again to power the device on. The Chrome screen I had been looking at when I powered the screen off flashed briefly on my screen accompanied by a bit of static and a slight pop, and the device went black. I have not gotten a response from the device since except for, like OP, when the device is plugged into the wall. Then I only get a battery icon with a lightning bolt for 1 second every time I push the power button.
After calling the warranty information number, Google is sending me a replacement device. They do not make you pay $400 (in my case, as I had the 16Gb) but authorize a payment of that amount so that if you do not return the device within 21 days they are not left high and dry. Seems reasonable to me.
Anyway, just adding my experience with this issue to the forum. OP is not the only one to get this symptom!
I just got this same issue. Was reading my news feeds on Google Reader, it seemingly froze up for a few seconds, then the screen started flickering when touched, and finally went black. Device is non-responsive except when plugged in, where it'll display the battery icon for a few seconds.
I do not know if this is related, but I was also having the charging glitch where it would power down with "0% battery" when plugged in or unplugged seemingly at random, and the long wake-up issue.
Now I am trying to get the device awake enough to be recognized by my pc so i can adb backup my data, but so far I am getting nowhere T.T

[Q] Problem with weeks old Samsung S4 Mini Dual Sim GT-19192

Hi guys
been a while since i got around to xda, knew i ll back sooner or later so here i am
bought a S4 mini dual sim GT19192 two months ago, great phone but since two days there's a crazy issue am facing
When i turn the phone off
As soon as it goes off starts vibrating with a second or two gap (feel like somehow its not totally off) and keeps doing so until battery is taken out, if i wanna turn it back on and put in the battery it starts the vibrating drama again, simply cant get it to stop vibrating/ cant turn it back on, the ONLY way to turn it back on is connect to laptop or charging unit via usb cable (the battery icon comes up, vibration stops, and can be turned on)
i did some research where this happened to a S3 phone, in most cases it was the power broken or stuck out of its place on the inside, so i opened up the back, took off the side that contains volume buttons power button, put the battery against the pins and bam same problem
this means each time i turn it off i need to connect to laptop or charging unit to turn it back on
can anyone please help?
just in case this set is in brand new condition never opened (till i did) and not rooted, hard reset dint help either
am really
anyone?
very disappointed to see no responses
I think it is a faulty battery problem.check your battery in another phone.
Sent from my GT-I9500 using Tapatalk

[Q] Help! Nexus7 won't turn on!

Totally new here. got my nexus 7(2012) since nov 2012. This morning, I was chatting with friends and my device suddenly froze for 10 mins. i couldnt wait long so i restarted it by holding the power button. now it won't open even if i did the power + volume keys, nothing appears. even when i plug it in the wall charger or on my pc and laptop. still no charging logo or any indication it was on and my laptop says installing new device but always ends up failing so i cant back up my files from my device. I'm not a techy person so i made absolute no effort to root my device. just chatting and some occasional gaming. Please help can't afford to buy a new device for a long while
*btw its a 32gb nexus 7(2012). not sure if this additional info is helpful or not.
Do you get any sort of screen when you try to turn it on ? I.E. do you see the Google logo for a few seconds? Or do you see nothing?
My guess is with a hardware failure or your battery has come loose. When my battery becomes unplugged, I will see the Google logo and then a bunch of funky colors and it will reboot constantly when plugged in. It dies if unplugged, and It also turns on the second it is plugged in.
So if you suspect the battery, there are videos on YouTube to walk you through popping the back off along with pushing the battery back in. I used black electrical tape to hold my battery in place better once I confirmed that was what my problem was.
Merrell
Sent from my Nexus 7 using Tapatalk 4
I would check to see if the battery connection came loose. Its an easy fix to try and was your tablet overly hot or any bulging?
Sent from my Nexus 7 using Tapatalk
Dark Jedi said:
I would check to see if the battery connection came loose. Its an easy fix to try and was your tablet overly hot or any bulging?
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
i am so sorry for not replying. i know its too late now because i was asking this info on another thread. i i already tried removing and reinserting the battery on my device.
the nature of my device is that its all black screen. even when you charge it, theres no charging animation that shows or any backlight. its like its really off without anything plugged.
when i plugged it in the pc under device manager, it says apx mode. kinda depressed cuz i think the device is already dead cuz i cant even do the power button + vol down thingie :crying:.
Try pressing and holding in the power button for a long time, up to a minute.
Sent from my Nexus 4 using XDA Free mobile app

[Q] Boot phone on plug in?

Looking to turn my old S4 into a car HUD (mostly just for GPS and Pandora). Plan is to hardwire the charging cable in behind the stereo so it's tied to the ignition (won't drain battery when the car is off). The only major roadblock is forcing the phone to boot up when it receives power. Is there a ROM with this functionality built in or a setting I can change? I've seen a number of people looking to fix glitches that were causing this, but nothing that does this intentionally.
Thanks!
Doesn't the s4 boot up when you put the battery back in after it's taken out? That may be a clue.
Sent from my Nexus 9 using XDA Free mobile app

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