Database Users

Broken Power Button

My power button has been acting funky lately, i thought it was just a software issue until i switched my battery today and realized it was hardware. now i cant turn on the phone.
Is there anyway to power on the phone via fastboot or some usb command? i need to get some files off the device before the device swap but i dont know how to turn it on without the power button =[
any ideas?

http://lmgtfy.com/?q=nexus+one+power+button+malfunction+xda
First page is my post about sending in my nexus one with the power button issue.

iamwhoamnot said:
My power button has been acting funky lately, i thought it was just a software issue until i switched my battery today and realized it was hardware. now i cant turn on the phone.
Is there anyway to power on the phone via fastboot or some usb command? i need to get some files off the device before the device swap but i dont know how to turn it on without the power button =[
any ideas?
Click to expand...
Click to collapse
One of the bloggers on Droiddog.com had the EXACT same question. Yes it's possible... read her method here:
http://www.droiddog.com/android-blog/2010/06/nexus-one-power-button-failure/
Basically:
Plug the phone in– USB or AC works fine.
Wait until the charging light comes on.
Remove the battery, while leaving the phone plugged in.
Replace the battery.
After about 3-4 times, the phone should boot.

i need to know if i can turn it on via usb command, ive already called in for the device swap.

uansari1 said:
One of the bloggers on Droiddog.com had the EXACT same question. Yes it's possible... read her method here:
http://www.droiddog.com/android-blog/2010/06/nexus-one-power-button-failure/
Basically:
Plug the phone in– USB or AC works fine.
Wait until the charging light comes on.
Remove the battery, while leaving the phone plugged in.
Replace the battery.
After about 3-4 times, the phone should boot.
Click to expand...
Click to collapse
it worked!!!!!!! fourth time it started right up. thank you so much you saved my life
if you take it out and wait till right after the charging light goes off then put it back in it seems to start up a couple seconds later!

Glad you got it up and running. Sorry I misunderstood the question.
Sent from my Nexus One using Tapatalk

Get Download Mode with only two buttons

There is another way to access the download by pressing only two buttons. The method is as follows: With the phone off the USB cable is connected only to the mobile. Then tightened simultaneously volume - (minus) and the home key with one hand (which each managed as best they can) and the other is connected to the PC and the phone goes into download mode.
This way has been possible solved a semi-brick.
As my english is not very good here you have a link in spanish wher you can read the problem and the solution.
http://www.htcmania.com/showthread.php?t=195180
Cheers.

It isn't really a 3 button download mode anyway, the power is just used to get it powered to notice the volume- and menu are held. By plugging into the pc, you are triggering the power up event instead of using the power key (only if it is a true usb port..my laptop dock has a usb "charge" port that won't trigger the phone power on, it triggers the on screen battery like the ac adapter and only adb works to the phone on that port, not usb mounting or odin).
I actually go to recovery or download by holding menu and vol, and only briefly pressing the power, makes it easier to focus on making sure you hold the vol and menu keys without accidentally releasing too soon (about 5 secs is enough to hold them down as it powers up).
Sent from my GT-I9000 using XDA App

Ok, but in a phone semi-brick without possibilty to access to download mode with the combo of the three buttoms this worked. It's only a new way, only that. Was discovered by accident and i share with you if it can be useful.

Interesting if this can work where vol- + menu and then power doesn't! Good tip then if this is the case.
Sent from my GT-I9000 using XDA App

juanicoenfer said:
There is another way to access the download by pressing only two buttons. The method is as follows: With the phone off the USB cable is connected only to the mobile. Then tightened simultaneously volume - (minus) and the home key with one hand (which each managed as best they can) and the other is connected to the PC and the phone goes into download mode.
This way has been possible solved a semi-brick.
As my english is not very good here you have a link in spanish wher you can read the problem and the solution.
http://www.htcmania.com/showthread.php?t=195180
Cheers.
Click to expand...
Click to collapse
Has anyone able to do this successfully?

I think the guy who was able to get this done was using a USB jig with pin 4 & 5 shorted with 300+ transistors.
MY GOD THIS WORKS.
I am giving this thread 5 stars & recommending a sticky.
PS : I held Vol Dn + Menu leaving the USB cable plugged into the computer, Then inserted the other end into my phone.

Tested and it works !!!
Hold Volume down + Home button than plug usb in and your in download mode!!
Great

i tried that before it doesn't work for like 60%+ percent of people
because it's heavily dependent on the kind of USB port in use.
most computer don't have the correct USB port to work
and coincidentally, this will only work on people that already have working 3 buttons only
if their phones came shipped without the 3 buttons combo, it doesn't work.
However this is the standard method for all Galaxy S family that is not part of the I9000 line
so that means Nexus S, USA Vibrant, Verizon, and AT&T captivate... all the ones missing the hard button basically.
so the absolute most effective way is the Homemade USB JIG method

Works!
Great!

[Q] NC not booting unless plugged into computer?

Rooted and using CM7. Not a big annoyance since I always have access to my usb cable to plug it in but is there some way of fixing this?

Can you be a little more detailed, do you have any other problems like a faulty power button or does everything else work fine. If that's the case you should probably do another cm7 install by re downloading it.

Don't know how to be more detailed then the title.
Until I plug the NC into an outlet or via usb to my computer it will not turn on. When on however I can put it to sleep and hit any button to wake it.
Not really that big of a problem but just wanted to see if it was a fixable bug or something.

nksharp said:
Don't know how to be more detailed then the title.
Until I plug the NC into an outlet or via usb to my computer it will not turn on. When on however I can put it to sleep and hit any button to wake it.
Not really that big of a problem but just wanted to see if it was a fixable bug or something.
Click to expand...
Click to collapse
It's easy to be more detailed THAN the title!
What happens when you hold the power button for 5 or more seconds?
Cheers,
kev

[Q] Sprint Galaxy S5 Not Powering On

Can someone please give me some advice on what to do. My phone is less than 3 months old and will not power on. It doesn't do anything, not even the vibration it usually does. I've tried plugging it into the charger but it doesn't even have the charging light on. It was working fine and just stopped. I pulled the battery out and put it back in but nothing it working. If If anyone has any suggestions, I would be very grateful! Thanks!!!

what were you doing at the time
What were you doing at the time the phone stopped working? Did you try charging the battery on an external charger?

As the poster above suggested, what were you doing recently? We are looking for clues as to what happened? Did you yank on the power cord, drop the phone, et cetera?
Make sure that your battery isn't in backwards in the phone and try using a different cable to charge the phone. If it still doesn't charge, then borrow a friends external charger.. or even the (charged) battery out of their S5 for a few seconds to see if your phone will turn on. We're trying to differentiate between a dead battery and all other problems.
If you still have no luck, then remove the battery for ten seconds, then replace (the presumably charged) battery in your phone. Then press and hold the volume down key. Then also press and hold the home key, then the power key. After about five seconds, you should see the phone start to the "download screen". If so, post here for further guidance.
If you phone is non responsive to a borrowed battery and the download mode described above, then you should seek warranty service with your carrier. A three month old phone should still be under warranty.
.

goddie392 said:
What were you doing at the time the phone stopped working? Did you try charging the battery on an external charger?
Click to expand...
Click to collapse
I was talking on it and hung up. Then, I tried to use it about 5 mins later and it wouldnt turn back on. What do you mean by "external charger"?? Sry, I'm not very tech savy lol! The only charger I have is the one that came with my phone. Thank you for replying! ☺

fffft said:
As the poster above suggested, what were you doing recently? We are looking for clues as to what happened? Did you yank on the power cord, drop the phone, et cetera?
Make sure that your battery isn't in backwards in the phone and try using a different cable to charge the phone. If it still doesn't charge, then borrow a friends external charger.. or even the (charged) battery out of their S5 for a few seconds to see if your phone will turn on. We're trying to differentiate between a dead battery and all other problems.
If you still have no luck, then remove the battery for ten seconds, then replace (the presumably charged) battery in your phone. Then press and hold the volume down key. Then also press and hold the home key, then the power key. After about five seconds, you should see the phone start to the "download screen". If so, post here for further guidance.
If you phone is non responsive to a borrowed battery and the download mode described above, then you should seek warranty service with your carrier. A three month old phone should still be under warranty.
.
Click to expand...
Click to collapse
My battery was charged in the 70% and I also used my husbands battery (we have the same phone) but that didnt work either. I'm going to try your other suggestion. Thanks!

melissadf79 said:
My battery was charged in the 70% and I also used my husbands battery (we have the same phone) but that didnt work either. I'm going to try your other suggestion. Thanks!
Click to expand...
Click to collapse
Can you get into recovery ( volume up + menu +power button) or download mode (volume down + menu + power button)?
You may read this article http://www.technobezz.com/samsung-galaxy-s5-not-charging/, hope it helps.

I tried the volume down + home + power and it didn't work. I'm not sure what to do. I don't want to make a trip to the store but it's looking like I'm going to have to.

melissadf79 said:
I tried the volume down + home + power and it didn't work. I'm not sure what to do. I don't want to make a trip to the store but it's looking like I'm going to have to.
Click to expand...
Click to collapse
It may well be an electrical hardware issue, it doesn`t look like a software problem to me. Good luck and i hope its fixed soon

melissadf79 said:
I tried the volume down + home + power and it didn't work. I'm not sure what to do. I don't want to make a trip to the store but it's looking like I'm going to have to.
Click to expand...
Click to collapse
It is looking like a hardware issue. If you are positive that the battery is charged.. i.e. if the battery turns your husband's phone on, then we ask what is different about your phone? Most software issues would be bypassed by starting a phone in download mode, which is why I asked you to try that.
Have a quick look at the battery "fingers" or pins on your phone. Those are the gold or silver coloured pins that line up with the gold or silver tabs on the end of your battery. Do they all appear to be the same? There isn't one that is bent out of alignment or shorter than the others where it might not be making contact with the battery?
And why not try one more test? See if the phone will start up in "recovery mode" this time.
Pull the battery out of the phone for ten seconds. Then replace it. Now in order.. press and hold the volume up button, then press and hold the home button as well. And last, press and hold the power button. Continue holding all three for ten seconds or until you see the phone screen turn on.
If that still doesn't work, my best guess is that you may have accidentally banged and damaged the power button. If it was me.. I'd try pressing really hard and wiggling the power button for a few seconds to see if you can cajole the phone to power on at least once and confirm the problem.
But that is about all that we can do. If you can't get the phone to power up with a known good battery.. then th store needs to check it with test equipment to narrow down what the hardware fault is.
.

How do you put SATV into fastboot/recovery using the power button?

Anyone have a link to a video showing how to use the power button to put this thing into fastboot/recovery?
I have a unresponsive unit that I want to flash. Seems like I can't get it into recovery but I'm not sure if I'm doing it correctly.
Here are my steps:
- Unplug everything from shield and unplug power from wall
- Plug in USB OTG cable from computer to shield tv (no lights from shield at this point)
- Plug in power cable to shield tv (power still unplugged from wall, no change to shield)
- Hold power button on shield tv for 3 seconds (nothing happens on shield, no lights or indication)
- Let go of power button and plug in power adapter to wall (light on shield turns on at this point)
- Nothing happens, no HDMI output and no indication from PC that a device is connected.
Any help?
FYI from nVidia website:
Code:
HW method:
- Disconnect power cable
- Insert USB OTG cable and make sure to connect other end to a host PC
- Connect power cable to SHIELD
- Quickly start pressing power button for ~3 seconds
- Do not hold the button and connect power supply afterwards
- HDMI TV should be always connected to SHIELD

I've booted mine over 100 times and only got in to work once, and can't reproduce the results. I have posted a similar thread, and couldn't find anything, but I'm terrified of something causing an unbootable device again because of this reason. If I find anything else to help out, I'll let you know, but my best advice is just keep trying, a lot. Don't quote me here, bit I think when I got it to boot sucessfully, I wasn't holding the button, I was tapping it for 3 seconds. Fairly quickly, but not super fast tapping. Some users report holding it works, but that didn't seem to for me.

Its a ***** to do with the hardware buttons but I have done it when I had a bootloop. If you can get it to boot normally its far easier to do it via adb "adb reboot bootloader". And if your rooted you can just use a sideloaded reboot manager app.

Yes doing it with a rebooting app or by connecting to a computer is the way to go.

baileyjr said:
Its a ***** to do with the hardware buttons but I have done it when I had a bootloop. If you can get it to boot normally its far easier to do it via adb "adb reboot bootloader". And if your rooted you can just use a sideloaded reboot manager app.
Click to expand...
Click to collapse
tailslol said:
Yes doing it with a rebooting app or by connecting to a computer is the way to go.
Click to expand...
Click to collapse
It's not responding, so they basically need to recover a soft brick, which is why I'm going to assume that they posted here. Someone needs to figure out a better trick, or they need a better method for any successor to this. Especially since it supports fastboot oem unlock.

kdb424 said:
It's not responding, so they basically need to recover a soft brick, which is why I'm going to assume that they posted here. Someone needs to figure out a better trick, or they need a better method for any successor to this. Especially since it supports fastboot oem unlock.
Click to expand...
Click to collapse
i hope nvidia put a timer trick or something to boot it in recovery mode ,maybie hold the button some secs.
maybie you will find some info in the shield documentation?
edit:found something i guess :
HW method:
- Disconnect power cable
- Insert USB OTG cable and make sure to connect other end to a host PC
- Connect power cable to SHIELD
- Quickly start pressing power button for ~3 seconds
- Do not hold the button and connect power supply afterwards
- HDMI TV should be always connected to SHIELD
Alternative method:
- Perform software shutdown on SHIELD by holding Power button for 10 seconds
- Connect USB OTG cable to SHIELD
- Start pressing power button for 3 seconds
- HDMI TV should be always connected to SHIELD
then you can use nvidia full recovery images to flash the shield to factory firmware.

tailslol said:
i hope nvidia put a timer trick or something to boot it in recovery mode ,maybie hold the button some secs.
maybie you will find some info in the shield documentation?
edit:found something i guess :
HW method:
- Disconnect power cable
- Insert USB OTG cable and make sure to connect other end to a host PC
- Connect power cable to SHIELD
- Quickly start pressing power button for ~3 seconds
- Do not hold the button and connect power supply afterwards
- HDMI TV should be always connected to SHIELD
Alternative method:
- Perform software shutdown on SHIELD by holding Power button for 10 seconds
- Connect USB OTG cable to SHIELD
- Start pressing power button for 3 seconds
- HDMI TV should be always connected to SHIELD
then you can use nvidia full recovery images to flash the shield to factory firmware.
Click to expand...
Click to collapse
Been through it all. Soft bricked my shield, and spent an hour trying that. Only got it to work once and stopped playing with it.

kdb424 said:
Been through it all. Soft bricked my shield, and spent an hour trying that. Only got it to work once and stopped playing with it.
Click to expand...
Click to collapse
I got it to work with the hardware (plugging in the power cable) method as mine was in a bootloop. I found it difficult because it hard to know exactly where the power button was because its not a raised button. Once I figured out the specific location of the power button I could do it reasonably consistently, like 1 in every 3 attempts. Of course your device may just be faulty unfortunately.

baileyjr said:
I got it to work with the hardware (plugging in the power cable) method as mine was in a bootloop. I found it difficult because it hard to know exactly where the power button was because its not a raised button. Once I figured out the specific location of the power button I could do it reasonably consistently, like 1 in every 3 attempts. Of course your device may just be faulty unfortunately.
Click to expand...
Click to collapse
Correct me if I'm wrong, but the power button is the whole thing. If I touch anywhere on the button at all, it'll put my shield to sleep, or wake it. That being said, I could have a faulty device as you have stated. I'd really like someone to put a video on youtube of a sucessfull run just to try to match it as close as possible, because 1/. runs is much better than my 1/100 or so runs.

No,it is just the nvidia logo,it is written in the manual and on the plastic cover when you un box it.

A user from another german forum got the right trick for timing, so it should work nearly every time to enter the bootloader :
HW method:
- Disconnect power cable
Click to expand...
Click to collapse
it's needed to make sure that the device is switched off
- Insert USB OTG cable and make sure to connect other end to a host PC
Click to expand...
Click to collapse
If you want only to test how to enter the bootloader, it's not mandantory atm.
- Connect power cable to SHIELD
- Now WAIT for ~2 seconds
Click to expand...
Click to collapse
Just count: 21...22.. if you don't know how long are ~2 seconds
Now press the power-button for ~6 seconds
Click to expand...
Click to collapse
The power-button is the sensor area with the NVIDIA Logo on the shield TV
- HDMI TV should be always connected to SHIELD
Click to expand...
Click to collapse
yes, otherwise you can't see anything.
Click to expand...
Click to collapse

Is there a visual cue for holding for 6 seconds? I noticed the NVIDIA splash screen appears right around 2.5-3 seconds, is that too late or right when I should begin holding power?

What worked for me was letting the unit sit unplugged WITHOUT the OTG cable for about 10 or 15 minutes. I then prepared myself to plug the ac adapter back in and almost immediately pressing the 'on' button thereafter. Got to the bootloader and was able to recover from there.

According to the Nvidia Shield information page, you plug the computer into the Shield's micro usb. Unplug the Shield's power. Wait like 10 seconds or so. Plug it back in. As soon as you see the light come on, wait for about 2 secs. Then hold down the power button till the bootloader comes up. It should come up within 6 secs, maybe sooner. That's it. Basically like what scorpio16v quoted. What Nvidia doesn't tell you, is that it doesn't have to be plugged into your computer. For example, I was able to get my Shield TV to bootloader using this built in hardware method by plugging it into my OG Shield via otg adapter on the micro usb cable.

Saw this on the Shield User Guide:
Reset Using NVIDIA Button on SHIELD
To access the fastboot menu:
1.
Turn off your SHIELD.
2.
Unplug the power cable from your SHIELD..
3.
Connect your SHIELD to your PC/Mac/Linux machine's micro USB port.
4.
Plug the power cable back into your SHIELD.
5.
Wait 2 seconds, and then hold the NVIDIA button for 5-6 seconds until you see the fastboot menu on the display.
Here's a link to the guide
http://support-shield.nvidia.com/android-tv-user-guide/index.htm#t=About_SHIELD.htm

I don't know about fastboot but to reboot into Recovery, simply attach a USB keyboard and press ALT +PRINT SCREEN + i (same as the Ouya)

dark_saian said:
I don't know about fastboot but to reboot into Recovery, simply attach a USB keyboard and press ALT +PRINT SCREEN + i (same as the Ouya)
Click to expand...
Click to collapse
good to know!
it seems it works on fire tv too!