Hi all,
My new Nexus 7 (2013 model) arrived today, and it seems that it can only boot up through the bootloader menu, i.e. the power button does not work properly. When plugged in, the battery charging icon does appear for a few seconds before disappearing.
The problem is that holding down the power button does not turn the device on. Holding down volume down+power button works correctly and shows the bootloader menu, and from there selecting "Start" is the only way to actually boot the device. When plugged in to a power source (outlet or computer), holding down the power button causes the battery charging icon to appear, disappear, and reappear constantly. Holding down the power button when unplugged shows no response on the screen, even after holding down for a full minute. Once the device is booted, the power button works perfectly for locking, unlocking, and showing the power off menu.
I already tried doing a factory reset, which did not help at all. Is there anything I can do to fix this problem?
Your best bet is to ask in your device's forum section as this section is for the 2012 version.
#stayparanoid
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Hello all,
My mother got an a500 about seven months ago and the other day she put it to charge and the next day it wouldn't turn on at all, just a black screen. When the charger is plugged in, the power button glows white. Take it off charge and the light goes out and that's all it will do.
I have tried searching through multiple forums and I have tried all the solutions I have found. I tried pressing the reset button near the usb plug, I tried a hard reset by holding the power and volume + buttons multiple ways, i.e. I held them both for thirty seconds, held the vol button and pressed power for three seconds and about every other iteration I could find. Nothing happened not even a vibration like from what I've read it is supposed to do. I downloaded the update.acer.zip file and put it on an sd card and tried flashing it by holding the power and vol - buttons, still nothing.
The tab has not been moded in any way, however, God only knows what apps my mother way have downloaded to it...
I am at my wits end and I don't know if I'm doing something wrong or what. Any help would be greatly appreciated. I am a noob so it wouldn't surprise me if I am not doing the flashing right or if I have the wrong files, all the links I found on the forums were non functional and I had to download it from filecorp.com.
Thanks in advance!
Core645 said:
Hello all,
My mother got an a500 about seven months ago and the other day she put it to charge and the next day it wouldn't turn on at all, just a black screen. When the charger is plugged in, the power button glows white. Take it off charge and the light goes out and that's all it will do.
I have tried searching through multiple forums and I have tried all the solutions I have found. I tried pressing the reset button near the usb plug, I tried a hard reset by holding the power and volume + buttons multiple ways, i.e. I held them both for thirty seconds, held the vol button and pressed power for three seconds and about every other iteration I could find. Nothing happened not even a vibration like from what I've read it is supposed to do. I downloaded the update.acer.zip file and put it on an sd card and tried flashing it by holding the power and vol - buttons, still nothing.
The tab has not been moded in any way, however, God only knows what apps my mother way have downloaded to it...
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The white light when plugged to the charger just indicates it's fully charged.
Test 1. Press and hold the PWR button for 7 seconds, release, wait a couple seconds to see if it responds, then press and hold for another 7 seconds. See if it responds.This is to check if the tab is in Sleep of Death (SOD)
Test 2. Using a paper clip, press and hold the pinhole reset (near USB) and then press and hold PWR. After 4 seconds release PWR, 1 second later release pinhole. See if is vibrates and goes into APX mode, (tab should vibrate once with a black screen and white PWR button) if it does, press and hold PWR only for a few seconds. Wait a couple seconds, then PWR on tab by holding PWR about 6 or 7 seconds.
Test 2 is just to see if the tab responds to anything,
If you can't get any response from the above, then it's best to turn it in for repair.
MD
@Moscow Desire: he pressed the reset button already so it is probably not SoD. Unless SoD makes reset button unresponsive too.
My tab does not vibrate when entering APX mode at all. Only the white power button LED turns on and the screen stays off.
@Core645: try this at first
- disconnect charger so the LED turns off
- hold power button for about 5 seconds
If the power button LED turns white and nothing else is happening then your tab is stuck in APX mode. You can confirm this by connecting micro USB cable from your PC. If you have windows it'll ask for drivers for Nvidia Download Mode or something like that.
Then check what Moscow Desire suggests with the reset button. I only ask you do my check at first because by holding reset you would achieve the same result and you wouldn't know if it is stuck in APX or you just forced it to APX by holding reset button.
I did a search and nothing was answered other than to try the whole "power off device via bootloader and BAM problem solved"...which doesn't work for me. I also have some issues not discussed. It seemed easier to just start a new thread.
So my wife let my N7 completely die. So she goes to charge it and it won't charge. She tries another cable and those don't work either. So here is what happens, and what I've tried so far. Also, I am rooted running CM10.1 I believe.
1- push the power button:
Up in the top left corner i get the text "show low low battery icon!" device turns off after about 3 seconds.
2- plug in charger:
When I do this, the little battery charging this comes on and the battery fills 3 times then the screen goes off (about 10 seconds)
3- hold power button for 30 seconds
if the charger is plugged in-> it brings up the battery w/lighting bolt, then says Google, then shows Cyanogen mod boot animation, then loads up my home screen, then instantly powers off because of no battery (0%). then starts all over and will repeat indefinitely (given that i continue to hold the power button down.)
charger not plugged in-> shows battery icon, says Google, then CM10 boot animation, then loads home-screen, then powers off, repeat indefinitely
4-if i take out charger after putting charger in:
it will still show the battery charging sequence for the ~10 seconds even though no charger is in
5- with charger in, pressing power and volume down:
takes me to boot-loader with the android laying on its back with its torso open. it says information in bottom left corner. it says start up in the top right by the power button, then has an up/down arrow by corresponding volume keys. Pressing volume keys does nothing. pressing power does nothing. I can hold the power button and it will restart, says Google, play CM boot animation, load home screen then power off.
6-without charger, pressing power and volume down:
see object 5
7- press power while charger connected.
Tablet loads with the whole Google->boot animation-> home-screen. while on the home screen, device starts powering off (0%) battery. while this is happening I can press the power button again to bring up the power menu. I can power off or restart:
a) power off: turns off device. nothing changes
b) restart-> boot-loader: restarts into boot-loader. see item 5
c) restart->recovery: tablet restarts, but then just goes to a black screen and then turns off. (sometimes it will also do a "normal" restart and load back to home-screen and what not)
d) restart->restart: restarts tablet normally back to where it will turn off immediately.
It does all of these things consistently. I am not sure what exactly I should do to try and fix this. any help would be greatly appreciated.
Thanks.
My phone's battery died so i plugged it in and when i did, the bootlogo appeared for around 5 seconds then disappeared. This repeated for hours. I tried pressing Power+down for 10 seconds and this resulted in the screen turning off and the led flashing red. I tried again and this resulted in the bootlogo issue. After several hours of charging, results are no different. Phone is completely unresponsive when not plugged in. Please help.
UPDATE: Managed to boot into recovery and reflashed my rom (SOKP D801), but no change. Is this rom broken and will a different rom fix the issue? Also, i can't seem to enter recovery again. (Note: rom is discontinued by developer and website is gone.)
UPDATE 2: Phone randomly started working again for no apparent reason. To avoid the original issue, should I switch roms?
did you tried hard reset?...
If your phone is on, turn it off.
Press and hold the Volume Down and Volume Up buttons, and then press and hold the Power button at the same time until the phone turns on. You'll see the word "Start" with an arrow around it.
Press the Volume Down button twice to highlight "Recovery mode."
Press the Power button to start Recovery mode. You'll see an image of an Android robot with a red exclamation mark and the words "No command."
While holding the Power button, tap the Volume Up button once.
Use the volume buttons to scroll to "wipe data/factory reset" and press the Power button to select it.
Scroll down to "Yes - erase all user data" and press the Power button to select it.
Note: If your phone becomes unresponsive at any point during these steps, you can restart it by holding down the Power button for several seconds.
The button combination resulted in a hardware control menu, not recovery
My A3 doesn't "wake up" from stand-by.
If I reset it keeping pressed power up button, it correctly reboots, I can see all boot process and it correctly reachs the starting home page.
If I keep touching screen, open apps, navigate from various menu all works fine. But when I leave it without pressing any button/screen for 10/15 sec (display power off delay) the screen correctly goes black, but there's no way to wake up it again although it seems working. The A3 "under" works because plugging to AC Adapter beeps the sound of charging in progress, PC (Kies or SmartSwitch) detect it correctly; only the screen remains black.
I already tried to wipe and even reflashed last firware with Odin but with no luck.
Is there anything else that I can try (except send it to repair center...)?
Thanks in adv
JYD
P.S. When I call It from another phone, it rings but the LCD remains black and doesn't respond clicking vol +, vol - and home buttons
P.S. 2 Thinks become "funny": Home button, vol + & vol - don't work at all. Power button powers off display, but long pressing it, doesn't pop up power off/reboot menu. Softkeys don't work.
Sounds like SoD. Try installing the app "Wake Lock" and choose the PARTIAL_WAKE_LOCK option.
Hi guys,
I've got some problems when trying to boot my OP2.
First of all, my phone won't power on when holding the power button. There is no reaction from my phone. When connecting to a USB port of my computer, the phone will power on showing the battery charging indicator. I tried several things:
- Power cycle: holding the power button for 20 seconds 5 times
- Holding the power button when connecting my phone to my computer: the OnePlus and Powered by Android logo, after a few seconds, battery charging indicator comes up
- Holding the volume down button when connecting to my computer: the phone is stuck at the OnePlus logo and Powered by Android logo. I have to disconnect the battery to turn off the phone. (Yes, I opened my OP2)
- Holding the volume up button for 20 seconds when connecting to my computer: no reaction, phone stays off.
Yesterday when holding some buttons, I ended up on the fastboot screen, but I don't know the combination of keys and duration to end up in this screen. When in fastboot mode, is it possible to reset this phone, because I can't open recovery mode (volume down button)? And how to I enable fastboot mode?
Might this issue be caused by a broken battery or another hardware issue?
Thanks in advance XDA-hero's!