power button isn't working - Xperia Z3 Q&A, Help & Troubleshooting

I have had to use the power button + volume key to force power off my device but then, the power button didn't work and when I used fastboot (flashtool) to open the device, I found out that the slide window also stopped working
Please help

Related

Volume UP is not working properly

Hello!
The button of Volume UP of my B68M phine works up to 50%, i.e. :
If I press it once brings to Homescreen and if instead I do a long press the button works fine (the volume goes to max.).
There is no doubt that the button itself is not faulty (it would not go home).
Then I did a remap keys, exchanging the Camera button with Volume UP button.
For the remapping I modified the files .kl in \system\usr\keylayout
In this way the Volume works 100% BUT.....if I press the volume button, the camera is not activated and the phone brings to HomeScreen again.
It seems that the Volume UP button is connected permanently to HomeScreen.
Problem of electrical ground or ROM ?
Can someone help me ?
Thanks in advance
Gil

[Q] Fix download/recovey buttons combo!!

Hello all!
I have a galaxy GT-I9003 that is on 2.3.6 gingerbread.
I want to flash another stock rom for it as i am having issues with it where it keeps rebooting by itself.
Now i cannot access both recovery & download mode to do teh flash
when i press the combo (any of them) i get the logo of samsung, then it fades away & a total black screen appears!! once i remove my finger from teh power button the phone starts! is there anyone who can help me how to fix the button combo issue pleeeeeeeeeeeeeeeease
PS. my phone is NOT rooted!
Many thanks
what you are experiencing is because of overdoing in pressing the power button (specially for accessing recovery mode). simultaneously press the 3-combo - volume up/down + home button + power.
ibaz said:
what you are experiencing is because of overdoing in pressing the power button (specially for accessing recovery mode). simultaneously press the 3-combo - volume up/down + home button + power.
Click to expand...
Click to collapse
Correct. While going in recovery mode press three button combination. When ur phone gets ON means when u will see samsung logo then quickly release all buttons. This is necessary step

[Q] power button issue even after remapping

hi friends:
i have an old infuse 4g which has the known power button issue so i remapped the volume_up button as power and power button as volume.
the remapping is working fine and i can see that the volume up button works like power and power button works like volume_up.
but sometimes it still power-off my phone when i touch or press power-button. during this time, i dont see an option to poweroff or reboot but the screen becomes black and i see samsung logo, basically its like somebody pulled the plug.
can somebody explain why is this?
many thanks in advance

[help]unable to enter download mode

have rooted my galxy core i wnt to enter download mode bt m nt able to do tht..
Turn off the phone. Awards along with the power button, button and volume down key. As soon as you turn the screen leaves the home and power button and press volume up

[Resolved] [Q] How does a power button work

It's a simple general question how does the power button work I can't imagine it
I only can imagine power switches
but how does any device respond to the power button that turns on your phone while the same long press can open the power menu and not shut it down
Or lock your phone
John98Zakaria said:
It's a simple general question how does the power button work I can't imagine it
I only can imagine power switches
but how does any device respond to the power button that turns on your phone while the same long press can open the power menu and not shut it down
Or lock your phone
Click to expand...
Click to collapse
Physically, pressing the power button closes a circuit. While the button is pressed, electricity flows. When not pressed, there is no circuit. The software/firmware interprets between a short press (screen on/off) and a long press (device power on, power menu, etc) and performs the appropriate action. Same with the volume and other physical buttons for stuff like hard reboots, screenshots, etc.
Planterz said:
Physically, pressing the power button closes a circuit. While the button is pressed, electricity flows. When not pressed, there is no circuit. The software/firmware interprets between a short press (screen on/off) and a long press (device power on, power menu, etc) and performs the appropriate action. Same with the volume and other physical buttons for stuff like hard reboots, screenshots, etc.
Click to expand...
Click to collapse
Thank you

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