s7 edge turn on only while charging - Samsung Galaxy S7 Edge Questions and Answers

Hi all,
in last 2 days, after over a year of normal use, my s7 edge suddently turn off and won't turn on by power button.
I connected to the charger ad battery level was over 50%. Pressing power button it turn on and i can use it or a while then it turno off again.
Someone else had this problem? How can i solve?
Thanks

i am also facing the same issue. My S7E randomly shuts down, and pressing down power button doesn't turn the phone on (I have tried Power+volume down). After several hours, when I put it to charge it turns on, and the battery is always at 0%, even though the phone 80%+ charge before crashing. Some times it makes sound, demonic like when its about to crash, sometimes it doesn't. Some times the capacitive touch keys have lights on, sometimes it doesn't. It is totally random so i can't really pinpoint the issue.
It has the Dec security patch and is on android 8.0

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Can't switch on. happened twice already

Hi
Today, I suddenly can't swtich on my Nexus 7. I am sure it still has at least 20% battery. And when I charge it, the screen doesn't display anything.
I was listening to the music with the screen off. And I unpluged the earphone due to a phone call. Then I came back after 20 minutes. I can't switch it on.
This has happened to me once. In the previous time, it had 30% battery. But I wasn't sure if I listened to music and did anything. It was OK after about one hour......
Anyone has the same issue?
Still can't switch it on. Is it bricked ????????????????????????????????????
finally, got it back to work again. By trying to do a recovery boot (vol up + vol down + power button). And first time, it didn't boot. Then press the power button again. it boots up my CyangoMod again. hahahahahaha
hope this would help other ppl

U8800 sometimes won't turn on

Hi , i have problem with my u8800. Sometimes it won't turn on after power off.
It turns on after some time, but sometimes it dont responds when im trying to turn it on.
Sometimes helps plugging to charger without battery but not always. And it's rebooting sometimes.
Hollow548 said:
Hi , i have problem with my u8800. Sometimes it won't turn on after power off.
It turns on after some time, but sometimes it dont responds when im trying to turn it on.
Sometimes helps plugging to charger without battery but not always. And it's rebooting sometimes.
Click to expand...
Click to collapse
How long u press power button ? Just make it a litte bit longer like 6 sec
About 10 sec, but sometines it's not responding. It's little better since i flashed aurora.
Your button is like mine which is getting old. I need to press 3 times sometimes more to turn on phone or turn screen. My advice use volume waker mod.

phone wont turn on but keeps vibrating

hey guys
my phone (Samsung A40) has a problem. sometimes when my is turned off and i plug it in it shows no reaction. when i press volume down to start (because the power button is broken) it begins to vibrate in intervals. only when the battery is empty the vibrations stop. there are also some times, when i plug my phone it, the display indicates that it's charging and it is possible to boot up the phone.
maybe i should also mention that i opened up the phone the replace the battery and the volume flex cable because the whole unit didnt work. now when phone works, everything works normally except for the power button.
why does it sometimes start to vibrate and sometimes just works fine? how can i fix this problem?

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

OP 6T does not turn on, what can I do?

I installed the KEK AOSP extended LineageOS and later clicked Power Off. As it still showed the battery status when clicking the power button I pressed the power button for a longer time to really power the phone off.
When I subsequently tried to power the phone on using the power button, nothing happened (no vibration, no screen, really nothing). The battery was at ca. 85% when this happened.
Never had that problem before, is there any way to bring the phone back to life?

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