Help Samsung Galaxy S5 turned off and won't turn on again. - Galaxy S 5 Q&A, Help & Troubleshooting

Guys come here to ask for help because I am a layman when it comes to phones from Samsung , the situation is as follows my galaxy S5 of a sudden stopped working , at least not start / on , I tried various methods but I'm limited because , the device does not go into recovery mode or in download mode , since removed the battery and waited a few seconds, reinsiro the battery on the device, hold the volume button down / up + Home + Power button, the phone responds with a very low vibration and turns on the LED light , but nothing happens , the screen is turned off, the same with charger in making vibrates and lights up the LED light , when connecting to the PC the same thing it vibrates and then lights the LED light but does not recognize the unit if anyone is having the same problem or have experienced the same problem any help is welcome , thanks!
obs : Stock ROM without root and installed recovery .

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[Q] when lcd light off r sleep mod my fone off need help plz

friends i face a strange problem in my s4 i9500 problem is
all fone work ok but when lcd lights off not on again with power button
auto lights off r going to sleep mode withe power button .fone work ok but lcd light not on again with power button
try entering in safe mode.
-turn of phone
-turn it on again and keep tapping the menu button while it is booting
-it should vibrate and start in safe mode
then try if the problem still persists.
if not, its propably one of your apps causing the problem.

S4 keeps turning off after a few seconds

hey!
I own a Samsung Galaxy S4. Since today I cant boot the phone up anymore!!!
while watching youtube videos it sudddenly was dead, I didn`t even drop it. turning on again with the power button doesnt work, advanced boot with power button + other button doesnt work as well. only if I reinsert the battery the phone vibrates and it turns on for about 2-3 seconds, the samsun bootloader logo appears and its dead again. I have already replaced the battery with a working one, doesnt work. I removed the sd and simcard but that did not help.
Sounds a lot like a power button problem.
The exact problem is that the button is stuck or shorted, which causes the circuit to be constantly closed. In other words, it's always "pressed".

Blackscreen and frozen LED light.

I wasn't doing anything out of the ordinary - just watching some YouTube videos and attempted to turn on my Bluetooth to connect my bluetooth speaker, all of a sudden the phone froze and then it went to a blackscreen and the blue LED was stuck on, now the LED has changed to white yet the condition is the same - blackscreen and doesn't respond to any button presses. Is there any way to force restart this phone via computer? It's my only phone right now and it's detrimental that I get it working as soon as possible.
Note: I have no custom firmware or ROMs, I use the default of what's with the phone.
Thanks in advance,
Tyrone.
Try every button press combination for 1-2 minutes (Only the power button, Vol-Down and power button or all at the same time). To see if you can get it to hard reset or go into fastboot.
Apart from that, there shouldn't be much else to do, apart from waiting until the battery drains out or something.
Sent from my LeEco LEX722 using XDA Labs

Phone wont turn on red light stays on all the time

I looked at the forums and all over google today for more than 6 hours trying to fix the phone to no avail. Basicly what happened, my phone froze after was droped and after restarting throu power button it got stuck on boot loop. So i dowloaded Huawei P9 Lite VNS-L31 model firmware and tried to instal throu SD card with volume up/down and power button option. It didnt work i got error message saying that it cant update becouse software doesnt comply with this version. And after that my phone went down. It is now completely unresponsive. Screen is black and a red light is on all the time ( not flashing ). Put it in charger no images appear. Try to press power button for 10 seconds. Red lamp dissappears for a second and comes back and no response from the phone, screen still black and no vibrations or sounds. Can access any of volume down or up power button menus. Its like the phone is dead but only the red lamp is on. Any idead whats wrong with the phone? Now i cant even try to wipe the phone or install new software couse it just doesnt despond only the red light turns off for a second when holding the power button for some time and comes on and no response from the phone.
Hey, I have the same problem. Did you manage to find the solution to it?

ASUS_X00TDB While using suddenly screen goes blank and just blinks nonstop

Please help I was using my phone when the screen suddenly goes off but the phone is on, the screen is blinking (lights up and off) continuously but it stays blank. I can open and close the screen by clicking the power button as you would normally do if you're checking the time on your phone. I tried pressing the power button for more than 15 seconds; tried the volume down + power button for more than 15 seconds, and tried the volume up + power button combinations. I tried it while it was connected to the charger and I also tried it without connecting to the charger. All it does is restart/boot my phone I know because it vibrates, but no logo, no display of the battery charging, but the notification light turns red when connected meaning it is charging. I can connect it to the computer also and it displays my device's model. But all in all the screen just stays blank and just keeps blinking (like lighting up and down). The phone wasn't dropped and it did not get wet by any liquid substance, when it happened the battery is up to 87% and I left the screen off for 4 hours before using it then it happened. I am out of solutions as I can't also reset it as there is no display even the logo and battery charging display are gone. But I know it is alive because I can turn it on and off and connect to the charger and pc. If anyone knows or can diagnose the root of the problem it can lessen my worries and maybe just resort to bringing this to a cellphone repair shop. Thank you. TT____TT

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