S7 won't boot, blue LED always on. - Samsung Galaxy S7 Questions and Answers

Just some minutes ago my S7 froze because of Focus Gallery App. I don't exactly know what it did but the phone did not respond any more.
So pressing the power button did not bring back the phone either. After searching for a bit I found a way to simulate a bettery disconnect by pressing Volume Down + Power Button.
The Phone came back up and displayed the initial boot logo. Also the blue LED is on. But nothing happens from here on. I do not come to the "Samsung" boot animation and the phone simply
does nothing. Retriying Volume Down + Power Button doesn't seem to help too. I tryed all button combinations but nothing brings the phone back.
I also cannot enter the recovery menu. So no chance to reset to default settings.
I am running a stock Android on the phone. Nothing was done by me. No custom ROM, no root, just plain Samsung Android.
Is there sill something I can do?
Edit: I just got into whats seems to be ODIN Mode??? Can I do something from here?

Oddly this happened to me last night although I may have inadvertently done it. But the only way I was able to get my phone functioning again was reflashing the OS to the phone.

How did you manage to get the phone into Odin mode? I'm having the same issue with the phone being totally unresponsive but the blue LED on.

if you can reboot your phone with the VOL Down/Power, when the screen goes black, quickly press and hold VOL Up, Home and Power. it should enter recovery. or hold Vol down, Home and Power to enter the download screen.

I have the S7 Edge (rooted, custom ROM) and it's running fine. My girlfriend's regular S7 is having the same issue though.
When she plugged it in to charge last night, she checked it a few minutes later at which point the phone had (started to) reboot. The blue notification LED was on and the screen had frozen at the 'SA' from the 'SAMSUNG' startup logo. Forced a reboot with down+power, resulting in just the blue LED (no logo this time). Phone was unresponsive (couldn't force a reboot again) so left the battery to drain overnight. The phone is completely dead today even after charging - no LED, no boot, no anything.
I'm not sure if she had the phone scheduled to perform an update overnight and it froze halfway through, but that would be my first guess. So far, no fix.

Related

[Q] Phone continues to reboot, need help

Alright so here's the issue. I was about to flash the latest CM using ClockworkMod, before it restarted it asked for superuser permissions which I had already granted before which seemed odd to me. I set down my phone after this to let it do its thing after this and when I picked it back up it was off and wouldn't come back to life. It's bricked.
When I try to power it on, it shows the Samsung logo and then goes black and then nothing. If I hold down the vol+, power and home to get to recovery it will show the Samsung Galaxy S3 logo then goes black, then shows the samsung logo again, then goes black and stays there. If I do vol-, power and home, it asks to press vol+ or vol-, so I press vol+ to get to Odin. It shows the Odin screen for about 5 seconds and then it goes black and stays black.
So basically, I can't boot, get to recovery, or get to odin long enough to actually use it. Any help is appreciated, thanks.
Sounds like it is time for a replacement. I had a Thunderbolt that did the same thing and couldn't fix it because the phone will not stay on long enough to do anything.

[Q] Can't get my tablet to boot into Recovery/Download mode

Hello,
Hopefully I'm in the right place for posting something that seems to be this simple. The start of my problem is that the tablet will not stay off. When I try to shut it down, it shuts down normally, but then it starts to display the battery icons like it is plugged in and charging, but it is not connected to power. I can leave it in sleep mode and the charging thing will not happen, but turning it off displays the power charging screen and it further drains the battery. I figured something is screwy with the system so I would try to reset it to factory defaults. Now I have the other problem...
So I am trying to restore to factory defaults and I know to do this I have to start from off and hold down the up volume and the power button for a few seconds and as soon as the tablet starts to turn on release the power button but not the volume up button, and it should get me into the recovery/download screen. Unfortunately that is not working. I hold down the Volume up button and briefly hold the power button (3 or 4 sec or so) and I see the Samsung Galaxy Tab 2 7.0 startup screen and let go of the power button (still holding the Volume up button). Next I see the spinning blue circle around the Samsung logo and the tablet reboots. I can release the volume up button at any time after that and the results are the same, it just reboots. It's like it isn't seeing the volume button.
I have tried using the volume Down button instead of the volume up button but that too is just like I am not pushing any volume button at all. Once the tablet is on, the volume buttons function normally, so the switches are good.
Since I got this tablet used could someone have loaded something onto it preventing it from being rebooted into recovery/download mode? Maybe some custom firmware or something. I'm at a loss as to where to go next. Since I can't boot into recovery/download mode I can't get into Odin.
Any help is appreciated.
Rick
Hi. The tablet isn't rooted, is it? Can you try to boot it into download or recovery with the "quick boot" app from google play?
I don't think it is rooted, but I can't tell for sure since I can't connect to the Google play store. I tried downloading using the web browser, but my battery dies before if finished. I'll try swapping batteries and see what I can figure out. Thanks for the idea.
Rick
No, the device is not rooted. it also is not charging and I had a heck of a time getting it to connect to the play store. I think I need to try and reload the OS, but without being able to get into ODIN, or reboot into recovery, I'm not sure how to proceed. any suggestions?
When the battery thing appears do the power- volume up thing and hold it until the gtab logo appears.
I've tried that, and it just boots up as if I wasn't holding the volume button at all. Once the tab is booted, the volume buttons work as normal. I've even tried putting a different power/Volume/IR unit in (from a working tab with a broken screen) and that didn't make a difference.
I left the tablet all weekend and it just keeps showing that it is charging when not plugged in. By Monday the battery was 100% dead. It won't even charge. If I replace the battery with a battery from a working unit I'b back in the same place where I can't get it to boot to Recovery/download.

[Q] Odd Galaxy S3 Power Issues

I honesty don't know how to describe my problem so I guess I will just tell you whats happening and what I know about my phone.
My phone:
Unlocked Verizon Galaxy S3 running CM for recovery, and CyanogenMod 10 for the ROM (Updated with Odin from Jelly Bean).
The issue:
1) Whenever I press the power button the phone completely shuts off. It doesn't just go to the lock screen, it turns off.
2) The phone will not always turn back on.
3) 85% of the time when it doesn't turn on, it boots into the first splash screen and turns off.
4) When I try to put the phone into download or recovery mode the first screen will pop up for about two seconds and then the phone will turn off again. The phone will either shut down on the cancel/download screen for download mode or the first splash screen with the blue text at the top for recovery mode.
5) The other 15% of the time it will reach the CyanogenMod screen, freeze, then shut off.
6) When I put it on the charger, the stock charging icon pops up but then the phone stops charging and shuts off. (It will charge correctly some times)
These things don't just happen if I press the power button. I used a custom app to turn the phone off without the power button and the problems still occurred.
Things I've tried:
1) Replacing the battery.
2) Switching chargers.
3) Leaving the phone on the charger for a while.
4) Taking the battery out for extended amounts of time.
5) Just leaving the phone alone for a while.
No, the power button isn't stuck... I don't think it is
I am aware that the motherboard might need replaced. However, most of the cases I read about involved the phone not turning on/charging at all. If I could get the phone into recovery mode I would clear the cache and see if that worked, if not I would just factory reset the phone. If I could get into download mode, I would flash a stock firmware and be done with it.
This is my second android phone and I've never had this problem before. I did my experimenting with my old Motorola Droid so I could make sure I knew what was safe with my S3 but apparently there is something wrong.
I greatly appreciate any and all help and please do help me
[EDIT #1]
I began hitting the power button against a hard surface and 1 out of 7 times it works. Perhaps the button is stuck.
[EDIT #2]
I am now able to press the power button without the phone turning off. I will still make a back up and sync all of my important media and prepare to have to factory reset and flash a new ROM.

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

Soft Bricked S7? Recovery Mode Keeps Getting Interrupted

A few weeks after switching from my old S7 Edge to my old S8 (which I did about a month ago), I tried turning on my S7 Edge only for it to enter recovery mode. Since the power button is broken, I figured I would have to reboot it out of recovery mode using ADB on my PC. When I switched my S7 on again the next day to enter recovery mode and connect it to my PC, I got to the "installing updates" screen that precedes recovery mode. This screen showed up for about three seconds before my screen went black. After 10 seconds my phone rebooted and went back to the "installing updates" screen, went black, rebooted, and so on.
I think my phone might be out of battery so when it charges a little bit, it automatically tries to enter recovery mode, which uses up all the power in the battery and causes it to die, restarting the cycle. Is there any way I can stop my phone from automatically turning on when it is plugged in so that it can charge enough to actually make it to recovery mode?
Thanks!
For some reason, the bootloader on this device remembers if you were last booted into recovery, and will return to it on the next poweron, so - without a working power button - there aren't very many options.
The power button could be an easy fix - depending on if it's stuck or damaged. The outer parts of the volume and power buttons on this device are interchangable, so that could make all boot modes possible again. Opening your device may sound scary, but - with good research and some patience - you will find it is certainly doable using basic tools. And if you don't want to do it yourself, a local repair shop would probably do it for cheap as well.
As far is I know, there isn't any usable software fix without a working power button.

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