Helppp phone shut down and not responding to any thing - Sony Xperia XZ Questions & Answers

My phone suddenly shut down and not charging and not starting not even responding when i press power and vol.up buttons together the battery was fill when it shut down
When I plug it to pc it says not recognized
Bootloader unlocked and running existenz romantic very 8.0.0
Please help

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[Q] Phone can't turn on

My phone's LED is blinking red and green when i connect it to wall charger.
I'm using the stock charger but my phone just cant be charged. It's completely dead by now. Btw, it is not overheat.
Any method to solve it?
Please shut down, then press the volume down button while you press the power button to boot.
To confirm that you can enter bootloader.
If you can enter, re-brush into a custom ROM.

Please help me! my nexus 5 is dead!!!

Please I need help, I was using whatapp when my nexus 5 froze. Then I hold the power button and the phone restarted normaly, but when it was showing the google logo it froze again turn off and now It does't respond to anything. I alreadu tried with hoding the power button or holding Volume up+Volume down+power and it didn't respond. Please help me!!I forgot to say that the phone was almost fully charged and wen I connect the phone to my notebook, windows doesn't recognizes the device.
Hold down power button for more than 30 seconds and see whether it boots up?? If not, hold down volume down button+power button together for 15+ seconds and see whether the phones goes to bootloader?
If above things fail, connect it to a wall charger and leave it for an hour or so and try to boot it up. If you still cant, it's probably a hardware failure and it needs repair.
vin4yak said:
Hold down power button for more than 30 seconds and see whether it boots up?? If not, hold down volume down button+power button together for 15+ seconds and see whether the phones goes to bootloader?
If above things fail, connect it to a wall charger and leave it for an hour or so and try to boot it up. If you still cant, it's probably a hardware failure and it needs repair.
Click to expand...
Click to collapse
It seems that is a hardware fail then, because I follow those instruction several times, and nothing happens. The phone remains dead.
When you connect it to a wall charger, the front LED become red ?

R7F cant even boot (enough battery, was trying to boot into recovery mode)

Hi I need help urgently. I wanted to boot my phone into recovery mode so i after i switched the phone off, i pressed the power button + volume up. My phone was connected to pc all along. problem is, i removed both my fingers off the power and volume up the moment i saw the "OPPO" boot logo, and realizing that the screen is blank, i removed the power cable connecting my phone to the pc. Now, my r7f refuses to boot.
Weird thing is when i connect my phone to the pc, sometimes the pc recognizes an unknown device thats "malfunctioned". This is called 'bricked'? How do i solve this?
I cant even switch on my phone or remove the battery due to its built-in battery. had 70+% battery at the point of occurence.
My R7f goes into the fastboot mode when i hold the power and volume+ . I usually enter to the recovery mode by holding the power and volume -
You have to hold the buttons for more than 2-3 seconds even the boot logo is shown keep holding them.

Samsung Galaxy S7 Will not power up, It showed a samsung logo and hung

My phone stopped working all of a sudden since last night, it was just sitting on the side idle and all of sudden it started showing a black samsung screen and hung and did not respond to any touch or anything else, At this point pressing powering button alone did not turn off the device, so I remembering pressing all of the button simultaneously and that turned off the phone but since then it wont turn on at all. I cant recall if the phone was on charge or not before it hung. But I am 100% battery was charged at least 70%.
After all that, I have tried all the possible combination of hard resetting this phone and still no luck to get it to power up.
Left the phone to charge overnight and in the morning tried restarting again with all the possible combination and still no luck to power up. I am clueless now.
Please let me know what could be the issue?
Any help would be appreciated
Update on the situation:
So Today I tried turning on the phone again and I pressed power+Volume Down+Home button and the phone started and it took me to the download mode. However when I pressed the up button it did not restart and stayed off, I pressed and held the same combition of buttons which are Power+Volume down+Home button then it took me to download mode again but I could not do much other than uploading a new firm to the phone which I did not want to do that. So I decided to restart it again by pressing the up button and it powered off and this time I went and pressed and held Power+Volume up+Home button and it did not do anything I tried this couple of times and still did not do anything. So I tried Power+Volume Down+ Home button and this time the device did not power up again.
At least now I know its not the hardware and some software glitch or a stuck loop.
Can someone please help me with this.
Thanks a lot Guys.
Update again:
Right after putting in the charging cable then the phone started up again and now the phone is showing an android blue screen "No Command" Pressing and holding Power+Up buttons do not bring it into the recovery mode? Please let me know thanks

Phone died

Was charging my phone and I saw it had a fb notification. As I clicked on it, the phone froze and then shut itself down after 10 seconds. Now the charging LED doesn't come on when plugged in and the phone won't boot up anymore. No combination of volume keys or power button does anything. When I plug it into my computer, it is recognized as "QHUSB_BULK" and won't let me access it in any way.
Any ideas or is it time to just bury this phone and upgrade?

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