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[Q] Brand new Nexus One can't be powered on

I have a brand new Nexus One bought on last year April. For some reason it wasn't to be used. Yesterday, I got it out of the package and charged it for ready to be powered on. Unfortunately, it reacted nothing as I pressed the power button! I took out the battery and put it into other Nexus One, it showed the battery was 100% charged.
I took back the battery and repacked it to this new Nexus One. I tried to press the power button more and more with data cable connected pc. Nothing happened. Just one time, the sceen lighted on and the "X" in four colors appeared! I didn't know why it was powered on. Maybe I pressed the trackball or volume up/down buttons, God know it.
The X sceen lasted almost for ten minutes and then sceen was off! Yes. It shutdown! I can't power it on anymore!
It seemed the hardware was OK. It may be the locked by the outdate android system. The android prestored in this phone is version 2.1.
Any advice is welcome. Thanks.

Can u you go in fastboot? Press power button+trackball..if so then you can recover your phone by unlocking bootloader and falshing custom recovery.

Sadly, It can't be power on and go in fastboot by pressing trackball+power button.

Any more advice?

Check the battery terminals just to make sure they're not dirty.. Sadly, you MUST be able to at least be able to boot something (hboot/fastboot) in order to troubleshoot anything software related. Sounds like you've got a hardware issue that could be one of (literally) a million things.
Sell it on EBay for parts. You can probably get $50-$60

you could try pressing pwr/vol-/trackball all at same time, hold down for around 30 seconds to make sure
commonly known as 3 finger salute
try power on without sdcard by manual methods and plugging in and plugging in with no battery

I have seen a video on YouTube on how to fix the power button which is known for messing up and how to turn it on. Search YouTube
Sent from my Nexus One using XDA App

is it that the power button is not working? that would be weird for a new phone though.
have you tried to turn it on using the "jump start" method?
connect the cable. led the charging led come on. remove the battery, wait for the led to go off (while cable is still connected) then pop the battery back in.
see if you can get it to start that way

When you plug charger cable in your Nexus, does the orange or green LED go on?
If one of them does and stays (green for full battery, orange otherwise) - then your problem is most likely the power button. It may not be the only problem, but at least the one that's stopping you from turning on your phone. You can try "jumpstarting" it by inserting battery while charger is connected.
If you don't see LEDs when plugged in - your phone is done.
If you see blinking LEDs - battery terminals might need cleaning/fixing, it usually happens when the battery is out of the phone.

[Q] Broken Xperia Z

Hi everyone!
4 days ago i washed my phone for about 10 seconds, phone worked normally. After 1 hour i saw water went into both front and back camera. I got out all flaps and after some hours cameras were functional again. After even more hours buttons started to act weird. Sometimes power button wasn't working, sometimes volume up was acting like power button and so on. I tried to restart the phone, sometimes it went into safe mode(probably volume button was pressed by itself). Finally I couldn't start the phone at all(perhaps the power button stopped working at all).
After that i calmed down and put my phone into rice(hoping that would absorb water if any). After 24 hours i had no luck. When i had connected my phone to computer, the led was red, phone vibrated 3 times and then again and again.
Next step was to open the phone( removing the back with a hairdryer), took out the battery and trying to dry the phone with hairdryer. Still no succes. When connecting to PC and start flashtool, my phone wasn't recognised. I installed Sony Update Service (SUS) and then when i connected my phone i heard that sound you often hear when connecting a new device to an USB port. Now my phone is seen by flashtool, but it's always in fastbootmode. I even flashed CWM and it worked.
The problem is that it seems volume up is pressed always so i can't enter in flashmode to flash 4.4.2, it always goes into fastboot.
When on battery the phone is dead at all. Still when i try to charge the phone, it starts, displays Sony logo then shows that it's charging (at first that battery was empty but after 2 hours it got full charged). If i press power button it shutdown.
To resume, when on battery nothing happens( the battery could be dead). When plugged to wall charger the phone starts charging( so battery could work). Power button does nothing at all when on battery, but works when phone is charging or when connected to PC in fastboot.
If anyone had any idea what I could do I would be very appreciative. If you have any questions don't hesitate to ask me.Thank you very much for your support!

bavarezul13 said:
Hi everyone!
4 days ago i washed my phone for about 10 seconds, phone worked normally. After 1 hour i saw water went into both front and back camera. I got out all flaps and after some hours cameras were functional again. After even more hours buttons started to act weird. Sometimes power button wasn't working, sometimes volume up was acting like power button and so on. I tried to restart the phone, sometimes it went into safe mode(probably volume button was pressed by itself). Finally I couldn't start the phone at all(perhaps the power button stopped working at all).
After that i calmed down and put my phone into rice(hoping that would absorb water if any). After 24 hours i had no luck. When i had connected my phone to computer, the led was red, phone vibrated 3 times and then again and again.
Next step was to open the phone( removing the back with a hairdryer), took out the battery and trying to dry the phone with hairdryer. Still no succes. When connecting to PC and start flashtool, my phone wasn't recognised. I installed Sony Update Service (SUS) and then when i connected my phone i heard that sound you often hear when connecting a new device to an USB port. Now my phone is seen by flashtool, but it's always in fastbootmode. I even flashed CWM and it worked.
The problem is that it seems volume up is pressed always so i can't enter in flashmode to flash 4.4.2, it always goes into fastboot.
When on battery the phone is dead at all. Still when i try to charge the phone, it starts, displays Sony logo then shows that it's charging (at first that battery was empty but after 2 hours it got full charged). If i press power button it shutdown.
To resume, when on battery nothing happens( the battery could be dead). When plugged to wall charger the phone starts charging( so battery could work). Power button does nothing at all when on battery, but works when phone is charging or when connected to PC in fastboot.
If anyone had any idea what I could do I would be very appreciative. If you have any questions don't hesitate to ask me.Thank you very much for your support!
Click to expand...
Click to collapse
Did you connect phone holding volume down key or are you connecting usb after that pressing volume down key

androidtweaker1 said:
Did you connect phone holding volume down key or are you connecting usb after that pressing volume down key
Click to expand...
Click to collapse
Even if i down't press anything, just connect the phone to usb, led is blue, that means it's in fastboot mode...so i think volume up is stuck, pressed.

bavarezul13 said:
Even if i down't press anything, just connect the phone to usb, led is blue, that means it's in fastboot mode...so i think volume up is stuck, pressed.
Click to expand...
Click to collapse
or the volume pcb might have shorted

Please remember this for the rest of your life:
When you notice that water has went into your device.... TURN IT THE F OFF AND LET TIT DRY...
Using it while it's wet from the inside is really bad.

Update Guys
Today I've replaced that yellow connector that contains power, vol up and vol down buttons. I managed to enter flashmode and flashed the newest official rom .233. Power button and vol up work like charm, vol down is dead.
The problem is that my phone is stuck on safe mode(probably because vol down is stuck). I want to know if there's any solution to get rid of this safe mode. I read somewhere that changes can be made to the kernel so that vol down will be disabled for ever. If you know any ROM, any mod, whatever that disables the vol down button i'll appreciate your help.

XT890 doesn't start at all.

Hello. This morning I've turned off the alarm, turned on WIFI and went back to sleep. I can't tell for sure, but I think the battery was low. During the next 2 hours I checked the time several times. I don't remember accepting any OTA. Eventually I got up, tried to check the time and the phone was off. I tried to turn it on, no effect. No matter how many times and for how long I pressed and held the power button, the green LED only flashed for a split second and that's all. I plugged in the charger, and the LED stayed lit -but- there was this barely noticeable flickering. Charged it for about 30, 60, 120 minutes, didn't start plugged or unplugged. I went to work, 8 hours later (phone was unplugged) I tried to turn it on again, this time the LED doesn't even flash, but when charging there is no flickering. No combination of buttons works. Windows doesn't find the device, neither does RSD.
I've never done anything 'custom' to the phone. The last change I made was setting the alarm to turn off by shaking (yesterday, never used this option before).
Is it dead?

Try taking SD card out and holding Vol down and then Power for 20 secs, then let go of Power,

Already done that, nothing. No matter how long I charge it now, after unplugging and pressing power button the LED doesn't even flash. Could it be a battery problem (before its death, it would last for a day)? Is there any way of recovering my data without buying a new one?

Try opening and disconnect battery for a bit.

I'll do that as a last resort, on weekend maybe since I don't have the tools with me. Any other clues?

Nobody knows how to help me?
I'm going to make a factory cable. Will this alone allow me to recover the data? Or if I'll be able to flash the phone, can I recover the data afterwards?
Also, I'm not sure if I understand correctly: does the factory cable recharge the battery or not? Is there a way to recharge it when removed from the phone?

Try to use medfield unbrick script. If You have only green led it seems to be bootloader error so this script should bring Your phone to life or Your phone has broken emmc and You can start looking for a new logic board. Good luck.

I've installed the drivers, but Windows and XFSTK don't recognize my device at all. Factory cable also didn't help. I liked my phone very much. :angel:

Did You enter medfield mode using combination with camera button??

By a combination you mean holding the camera button and connecting the phone to a pc? I tried that.

Disassembe Your phone, pull out battery, push power button for a 10 sec, plug in battery, push camera button and connect USB. If it wont help You I don't see any hope for Your phone.

Well, new option to try is a new hope. I'll try that on the weekend. Could you please be more specific:
1. Pull out the battery.
2. Press the power button and wait 10 seconds.
3. Insert the battery: should I be still holding the power button at this moment?
4. Press the camera button.
5. Plug in the usb cable (factory? regular?) - should I be still holding the power and camera buttons?

Battery trick is only to discharge capacitors. Sometimes even phone is dead it can turn on in some strange mode and then You can't boot it to flash. Thats why You need to pull out battery, push power for a few sec to completely discharge motherboard and just release this button. After that You can just plug in battery and continue normal unbrick process - so hold camera button only and connect regular usb cable.
You can also try reset option instead of pulling battery out. To do that do not disassemble Your phone but just plug in regular USB, when phone starts (green led) hold power and vol- until green led goes off and then quickly start holding only camera button.
I have no more ideas.

Ok, I've tried everything. Nothing brought my phone back to life.
Thanks for all your help.

Restarting Droid 4 when battery is completely dead

I've had my Droid 4 completely lose battery on one or two occasions where I wasn't paying attention to it while doing something else.
It turns out that I have to plug it in and wait until the battery is at 100% to get it to start up again. What is the way around this? Just holding the power button turns the phone on, shows the motorola boot logo, and then shows the battery at whatever percentage it's currently charged to. How do I bypass this and start into the ROM and then just charge from there?
In an emergency when I'm waiting for a call or something, this is something I need to be able to do.

Careless_ said:
It turns out that I have to plug it in and wait until the battery is at 100% to get it to start up again. What is the way around this? Just holding the power button turns the phone on, shows the motorola boot logo, and then shows the battery at whatever percentage it's currently charged to. How do I bypass this and start into the ROM and then just charge from there?
Click to expand...
Click to collapse
The power button on my phone is completely non-functional, so I have to plug it into a charger to "kick-start" it on the rare occasion that it's completely shut off; which, more often than not, is when my now rapidly-aging battery craps out and I don't catch it in time. So I face this every now and then.
The solution:
Let the phone charge enough to safely boot; 10% oughtta do it. It seems that the phone does charge whenever power is being supplied regardless of its state, but the amount of drain while booting means your charger by itself probably won't keep up
Unplug the phone; this should make it shut off
While holding Vol+ and Vol-, plug the phone back in (you may be able to use the power button instead of plugging in, but I wouldn't know). This will bring up the menu of which the name escapes me at the moment
Unplug the phone (may or may not actually be necessary for success, but I always do)
Select Recovery (Vol- navigates, Vol+ selects); this will get you into the 96% useless stock recovery
Press Vol+ and Vol- together until the menu comes up; this might take several tries because either the phone is fidgety or the timing is stupid-precise
Select Reboot (either Enter or Ok on the keyboard to select, I forget)
The phone should reboot properly, skipping the forced charging thing. You can (and should) plug the charger back in anytime after you hit Safestrap/the post-SS kexec buzz if you have the custom SS installed which disables the popup at boot.

Septfox said:
The power button on my phone is completely non-functional, so I have to plug it into a charger to "kick-start" it on the rare occasion that it's completely shut off; which, more often than not, is when my now rapidly-aging battery craps out and I don't catch it in time. So I face this every now and then.
The solution:
Let the phone charge enough to safely boot; 10% oughtta do it. It seems that the phone does charge whenever power is being supplied regardless of its state, but the amount of drain while booting means your charger by itself probably won't keep up
Unplug the phone; this should make it shut off
While holding Vol+ and Vol-, plug the phone back in (you may be able to use the power button instead of plugging in, but I wouldn't know). This will bring up the menu of which the name escapes me at the moment
Unplug the phone (may or may not actually be necessary for success, but I always do)
Select Recovery (Vol- navigates, Vol+ selects); this will get you into the 96% useless stock recovery
Press Vol+ and Vol- together until the menu comes up; this might take several tries because either the phone is fidgety or the timing is stupid-precise
Select Reboot (either Enter or Ok on the keyboard to select, I forget)
The phone should reboot properly, skipping the forced charging thing. You can (and should) plug the charger back in anytime after you hit Safestrap/the post-SS kexec buzz if you have the custom SS installed which disables the popup at boot.
Click to expand...
Click to collapse
Yes... this is the method I remember using once, but I couldn't get passed the useless stock recovery this time around so I thought maybe I was just dreaming. I guess my timing was just bad this go around.
Thanks again, Septfox!

My DROID 4 is like my DROID 3. When the battery completely dies, you cannot press the power button while it's plugged in.
So, Dead phone. Plug it into the charger. Wait a couple minutes, so it gets some charge. Unplug the charger, Hit the POWER button, then plug it back in.
It won't work if it's plugged in, dead, and charging. You gotta unplug it to turn it on, then plug it back in to continue charging.

That is happening not only with this model phone. On other brands is the same.

My Nexus 6 won't turn on

My nexus 6 doesn't turn on. This has never happened, but the green LED suddenly turned on when I plug in my phone. When I press the power button, nothing happens. When I hold the power button, the led goes away and doesn't turn on. Any suggestions?

psun03 said:
My nexus 6 doesn't turn on. This has never happened, but the green LED suddenly turned on when I plug in my phone. When I press the power button, nothing happens. When I hold the power button, the led goes away and doesn't turn on. Any suggestions?
Click to expand...
Click to collapse
Can you get to the bootloader? Volume down+power.

garywojdan81 said:
Can you get to the bootloader? Volume down+power.
Click to expand...
Click to collapse
nope.. when i try to get to bootloader or press the power button.. the light disappears and nothing happens

psun03 said:
nope.. when i try to get to bootloader or press the power button.. the light disappears and nothing happens
Click to expand...
Click to collapse
Did you try the power buttons when the charging cable is connected and device is charging?

psun03 said:
nope.. when i try to get to bootloader or press the power button.. the light disappears and nothing happens
Click to expand...
Click to collapse
3 finger salute? Plug it into your computer?

If the battery is on its last legs, and fully drained, it can exhibit this behavior.
Plug the phone into a low power port like a computer usb port but not the fast charger that came with the phone. Leave it plugged in for 1-2 hours. Unplug the cable then plug it back on again. If the battery charge animation displays, then you are good to plug it into a regular fast charger.
There are times that you need to leave it plugged in for an hour, then disconnect the cable, long press the power button and it might reboot. In that case, charge it fully before attempting to use it.
"Good judgment comes from experience, and a lot of that comes from bad judgment." - Will Rogers