Can't boot or get in recovery mode - General Questions and Answers

Hello.
I have a LG 65 (D280n), and one morning I found it with blank screen (on).
I've tried all kinds of key combinations to reboot it or get it in recovery mode, without success: power on + volume up, power on + volume down, power on + home, power on + volume up + home, power on + volume down + home...
Nothing is working
Also, PC is not recognizing the device when plugged through USB (makes a connection sound, but that's all)
Any ideas as to how to reboot it/recover it?
Edit: I get the LG logo screen for a few seconds, then it flashes to black, appears briefly again, and goes blank for good (although the screen is black, it's on)

Related

[q] [help] hard bricked (?)

Here's my nexus condition:
It won't turn on, i've tried every possible method; hold power button (10s), hold volume down + power,
volume up + power, volume down + up + power, It still won't turn on.
I connected it to charger and it entered google logo but then off and on for several times. I sometime managed to get
into bootloader mode, but then again it off again.
the interesting part is when i hit my nexus to my palm, it sometimes turn on and enters google logo but then bang,
it's back off again.
Could someone please help me get out of this misery?
yukarundeng said:
Here's my nexus condition:
It won't turn on, i've tried every possible method; hold power button (10s), hold volume down + power,
volume up + power, volume down + up + power, It still won't turn on.
I connected it to charger and it entered google logo but then off and on for several times. I sometime managed to get
into bootloader mode, but then again it off again.
the interesting part is when i hit my nexus to my palm, it sometimes turn on and enters google logo but then bang,
it's back off again.
Could someone please help me get out of this misery?
Click to expand...
Click to collapse
Sounds like a problem with the power button.
It should be a problem of power button cause if its has gone inside.. it will always keep shutting your phone

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.

benq f52 boot loop

Hi,
I tried to root my phone by using the kingo root application, after 90% it just rebooted and now hangs in a boot loop.
I try to enter the factory reset mode, but when I press power + volume up it only vibrates. There is no home button on this phone. I also tried pressing all 3 buttons power, vol up and down, which just turned the phone off now finally, but I can't get into the factory reset mode. Also power plus volume down just reboot the phone.
//EDit: In case someone has the same issue: Power off the phone by pressing all 3 buttons, after that wait for 10 minutes then power on the phone by pressing power plus volume down until the android logo appears, stop pressing the power button and keep pressing volume down.
post can be closed.

Universal Recovery Boot Guide

UNIVERSAL RECOVERY BOOT GUIDE​By Zillinium​
Switch Off the Device.
If you have Quick Boot switched ON, you'll need to remove the battery now.
While the Device is OFF & Battery is back in.
Press & Hold Volume Down
If you have a Home Key, Press & Hold the Home Key as well.
While holding Volume Down, And Home if supported, Press & Hold Power as well.
Now you should be holding Volume Down + Home Key + Power Key simultaneously, hold them all for approximately 5 seconds.
DONE !
PROBLEMS
Boot's into Download Mode = Use Volume Up instead of Volume Down.
BOOT LOOPS AND THEN BOOTS NORMALLY : Your holding the button for too long, it's causing a forced restart, try releasing the key combination immediately when the screen lights up, then hold it again.
​

OP7P not charging (Qualcomm Crashdump)

Hi all.
I was charging my OP7Pro (Android 10 with TWRP) when the screen went white. I tried to reboot it (volume down + power) but it did not and eventually it turned into this (pls see image).
Whether I press power + volume up or power+ volume up + volume down, the screen becomes blank for a second then goes back to this. Power button and power+volume down does nothing.
Most instructions I see here ask for the phone to be turned off but I can’t turn it off. It went off when the battery was empty but I can't charge it anymore and connecting to a PC does not do anything.
Any help regarding this?
Thanks in advance!

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