[Q] Power Up - Nexus 7 (2013) Q&A

How long do you generally have to press the power button when powering on the N7 (not rooted, running 4.4.2) ? Sometimes it will power up if I press it a few seconds, release, and then wait for the Google logo to appear, but i often find that nothing happens (don't get a the Google logo to come on after waiting ) unless I keep pressing the power button in for almost 30 seconds until the logo appears and then release it. Once it powers up it seems to run just fine.
Is this a problem? Is there a fix? I've cleared the cache but that doesn't seem to make much difference. Also, no problems if I just hold the power button until it shuts itself off (not using the power off prompt) and keep holding it a few seconds after it powers down to automatically reboot (I read this tip here and assume it is OK to do?). This problem just seems to appear when I power up after shutting it down for a day or two.
Also, I've read suggestions in other threads, not about this issue, that talk about starting up in Safe Mode. How is this done and why would i do it?

You said N7 did you mean N5? N5 vibrates after a couple seconds for me that's when I let go.
Sent from my Nexus 5 using Tapatalk

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[Q] Kindle fire screen cannot shut down

After I installed the ICS custom ROMs, I found that my Kindle Fire cannot shutdown properly. When I press the power button and click shut down, all the icons are disappeared like a computer shut down situation, but I can see that the screen backlight is still on. Even I pressed the power button again it is still has backlight (this should prove that it cannot shut down and still working)
I'm using TWRP and have tried most ICS roms released recently with kernel 3.0. I have wipe factory reset, cache and dalvik cache before install new rom.
Anyone has encounter this problem and can solve it? Is my TWRP has problem?Thanks for help.
If you'd bothered to read even a little bit you'd realize this is a known problem with 3.0. If you want to shut it down hold the button for 10 seconds or until the screen turns off.
nathris said:
If you'd bothered to read even a little bit you'd realize this is a known problem with 3.0. If you want to shut it down hold the button for 10 seconds or until the screen turns off.
Click to expand...
Click to collapse
Its hard to believe that people somehow manage to miss the huge font size... 60? red letters stating these things in hash's threads.
even still, i've seen alot of threads saying 10 seconds isnt always enough, and to be 100% sure hold for 20 seconds.
I've noticed it myself, every now and then if i only hold for 10 seconds, and dont pay attention, i end up later having to hold it for 20 more seconds to shut all the way off and reboot hopefully they sort it out soon.

Tmobile SG S2 Software problem or power button

MY galaxy s2 has problems with powering off every now and then. it was really bad at one point where all it was doing is turning on and rebooting right after. i had a custom rom for months and never had problems until yesterday. i couldnt go on recovery mode because it would always restart every five seconds. Now it seems to less frequent because i realized that it always reboots when i touch the power button once. Sometimes when i push the power button to take it off sleep mode, the power options pops up (recovery, restart, power off etc) so thats when i thought the power button might be the problem
Any guesses on what could be the problem?? If its software problems or power button issue.
P.S. reset my phone, re rooted it, and put a new rom darkside. It literally stays on until i push the power button. then it restarts five seconds later.
the power buttons seems to stick....I have the same problem, the phone is acting as if the power button is being pressed without being let go. When the power button is held indefinitely it just keeps rebooting over and over again. It occurs sporadically, but once it sticks..it sticks. I seem to be able to unstick it by slapping it against my hand but eventually it turns off. Its definitely a hardware issue and I will open up the phone right now to investigate. Ill write if I find anything useful.
albert-557 said:
MY galaxy s2 has problems with powering off every now and then. it was really bad at one point where all it was doing is turning on and rebooting right after. i had a custom rom for months and never had problems until yesterday. i couldnt go on recovery mode because it would always restart every five seconds. Now it seems to less frequent because i realized that it always reboots when i touch the power button once. Sometimes when i push the power button to take it off sleep mode, the power options pops up (recovery, restart, power off etc) so thats when i thought the power button might be the problem
Any guesses on what could be the problem?? If its software problems or power button issue.
P.S. reset my phone, re rooted it, and put a new rom darkside. It literally stays on until i push the power button. then it restarts five seconds later.
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Click to collapse

Hitting the power button on my phone makes it go crazy

Has anyone else experienced this? If I hit the power button on my phone, the screen goes crazy and it eventually goes off. It starts to turn back on but then during the boot animation it just cuts off again. If i boot into recovery, it cuts out there too. I was trying to wipe my phone but it wont stay on long enough. I'm running the new cm 10 stable.
Saw this in another thread and they came up with a faulty power button. Either it's getting stuck or the actual connection is effed. Does it stick a little when pressed as in is it not fully popping back up? Because if it's happening in recovery too than that seems to be the case I would think. Have you had your device for a while now or is it newer?
Yep, sounds like a sticking button. The phone is hard wired to reboot when the power button is held for a number of seconds, no matter what is going on (it's equal to a battery pull), so if the button is stuck, you're in a loop.
Sent from my beastly Galaxy S 2.

Brick maybe?

Hello there, I was installing Recovery using this, http://forum.xda-developers.com/showthread.php?t=1746682, I only went up to the first part of unrooting the phone where it asks me to connect my and install te recovery, my phone after the root did not want to turn on. I tried using the Volume +/- along with the home key, nothing, it just vibrates and nothing. I tried pulling out the battery and the same thing happened, no matter what I did, it vibrates and won't turn on. Also when I hook it up to the charger and try turning on it vibrates and it keeps vibrating in loops, around 2-3 sec apart. What is wrong with my phone? Please don't tell me it's a brick, I just got it yesterday ;p
infernel250 said:
Hello there, I was installing Recovery using this, http://forum.xda-developers.com/showthread.php?t=1746682, I only went up to the first part of unrooting the phone where it asks me to connect my and install te recovery, my phone after the root did not want to turn on. I tried using the Volume +/- along with the home key, nothing, it just vibrates and nothing. I tried pulling out the battery and the same thing happened, no matter what I did, it vibrates and won't turn on. Also when I hook it up to the charger and try turning on it vibrates and it keeps vibrating in loops, around 2-3 sec apart. What is wrong with my phone? Please don't tell me it's a brick, I just got it yesterday ;p
Click to expand...
Click to collapse
I think this kit is honestly the easiest way to brick your phone. There are simply too many options, most of them have no real use for this phone, and the free version never gets updated. Honestly think it's a bad move for people who are new to the game.
To get in download mode:
Start with the phone off.
Press and hold the home button and volume down button.
Press the power button until the phone vibrates.
Release the power button.
To get in recovery mode.
Start with the phone off.
Press and hold the home button and volume up button.
Press the power button until the phone vibrates.
Release the power button.
Release the volume up and home button when the blue text appears in the top left corner of the screen.
If these won't work, you are bricked. Time for JTAG.
I agree 100%. That kit seemed pretty helpful for some when this was still pretty new, but recently it seems there are more reports of failures (or worse) than successes. When you get this fixed I suggest reading all the stickies and then take it from there.
Good luck
Sent from my SGH-T999L using XDA Premium 4 mobile app

Nexus 7 (2013) Power button and booting problem

Long story short, 1 month ago my Nexus 7 (2013) got water damaged, I immediately covered it in rice and left it for a couple of days, and after turning it back on, have a weird issue.
The power button will not work what so ever, I've tried holding it in for over 60 seconds, aswell as holding in the volume buttons along with the power button.
The only way to turn it on is to plug the nexus into the mains. I then get the white LED flashing 5 times, which I assume means it's charging up from a completely dead battery.
After about 20 minutes of charging, the google logo will pop up, stay on for 3-5 seconds, then the unit will reset itself (screen goes off, then back on to the google logo, and repeats like that).
However....If i hold in the volume down button, it'll boot up like normal, everything works fine, but take your finger off the volume button and it'll reset and only boot to the google logo. Holding volume up will take it too the boot loader.
The issue is that at no point, (in the bootloader or once its booted in to the OS) will the power button work whatsoever.
I first assumed that the button was broken, and stuck to the ON position, so ordered a new button cable (which includes the power button, volume up and down, aswell as the microphone) but this hasn't done anything.
Wondering if anyone had any thoughts?

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