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[Q] Samsung GalaxyS2 won't power on

Hi everyone, I appologize in advance if this has been posted and resolved, but I couldn't seem to find anything after numerous searches.
I have a Samsung Galaxy S2 that I have had for JUST over a year (i think June 30th) Everything has been fine, no problems and today I was on it, working fine and then all of a sudden it shut off and then started to reboot. Only when it powered back on, it showed the black SAMSUNG GALAXY SII powered by Tmobile start up screen, then went black, then the startup screen appeared again, then went black...repeat.
I did a battery pull for 2 minutes, same thing. Did a battery pull for 1 hour, same, I left it on the chargert for 4 hours and while on charger kept blinking on and off but now only the grey battery (even now off the charger)
It has never been rooted, or updated or anything like that. There is no water damage at all.
I have a wall charger for the battery only and an extra battery and have tried charging both batteries with that and still no luck.
I have also tried plugging it into my computer to see if it would boot up that way and nope. Still just the on and off dead battery, not even the startup screen.
HELP PLEASE!?

power shortage?
Has there been any kind of problems with your electric house system? that happened to me once, and it was due to a power problem at my house, it basically blew off my battery. Forget about battery pulls. Go to a store and ask them to lend you a battery for a second. If it powers on fine, it's the battery. If it doesn't i think you should get yourself a new phone, or try to get it fixed at the customer service. Sorry for the bad news man...

Nope, no problems with electricity, and neither of the 2 batteries will work!

[Q] Is my phone bricked?

I have a samsung galaxy S from T-mobile, It became unresponsive and it started for no reason.
It is a locked , never rooted no firmware or software updated ever. Just had some Apps from marketplace though no new apps recently.
this is what happened. I left it for charging and the battery was dry. i gotta a call, so disconnected a/c charging and I could not swipe answer button and the phone kinda went to freeze, then screen went black. I took the phone connected for charging and after some time tried to hit power button , it starts the flash logo and t-mobile logo screen and then to the home screen which was black except for some icons in the top toolbar.
so i started again and went on like 4 times and i gotta screen like ( i think downloading screen ) . thats it . THe phone never charged or started again, I tried 3 button combos and all the basic recovery steps for this and not worked. I have been hunting for answer last couple of days before deciding to write my own thread. I am now convinced my phone is fully bricked , what should i do now?

So you think your bricked... Well good thing is your not bricked.
The information you gave us is not very clear.
I would take a guess and I would say its the battery. Replace the battery with a new one.

[CRITICAL] [Q] Help with Hardbrick!

Ok, so my Samsung Galaxy Trend Plus has stopped completely operating. When you turn it on, it shows the Samsung Trend Plus logo, but before the boot animation, it gets stuck to a black screen (The screen color is black, the screen does not close). Whenever I press any of the phone's buttons, It will vibrates. It does that every 4-5 times and then theres a long vibration. The phone is rooted, but it runs for about 5 months with root. Im using an alcatel less powerfull charger to charge, due to the reason the official samsung one was broken. Yesterday, I mengled around with GravityBox (But I have GravityBox and Xposed framework since root) on the Navbar settings, and after the phone rebooted, It constantly said [SystemUI has stopped]. This had happened to me like a month ago again, but then I just reflashed the Official Rom via Odin. This time, I chose to just delete SystemUi's apk from /system/apps and then copy it back to the phone from my pc. The phone worked perfectly for a day after that, but when I went to take it out of my pocket at the evening, it was closed, even though 1 hour ago it had like 37% battery. So, I charged, and when It finished, I went to open and the Black Screen problem came out. I can't neither boot in recovery nor Download Mode

zarkotom said:
Ok, so my Samsung Galaxy Trend Plus has stopped completely operating. When you turn it on, it shows the Samsung Trend Plus logo, but before the boot animation, it gets stuck to a black screen (The screen color is black, the screen does not close). Whenever I press any of the phone's buttons, It will vibrates. It does that every 4-5 times and then theres a long vibration. The phone is rooted, but it runs for about 5 months with root. Im using an alcatel less powerfull charger to charge, due to the reason the official samsung one was broken. Yesterday, I mengled around with GravityBox (But I have GravityBox and Xposed framework since root) on the Navbar settings, and after the phone rebooted, It constantly said [SystemUI has stopped]. This had happened to me like a month ago again, but then I just reflashed the Official Rom via Odin. This time, I chose to just delete SystemUi's apk from /system/apps and then copy it back to the phone from my pc. The phone worked perfectly for a day after that, but when I went to take it out of my pocket at the evening, it was closed, even though 1 hour ago it had like 37% battery. So, I charged, and when It finished, I went to open and the Black Screen problem came out. I can't neither boot in recovery nor Download Mode
Click to expand...
Click to collapse
So, it seems your battery is dead, this is nothing to do with software (unless the stock rom killed it), so, buy a new one, or see if it is covered by the warranty

Reply
Yes, but when I put it in the charger, it shows the charging animation....... And then if the battery is dead, how can it power the vibrations and the screen?

KkdGab said:
So, it seems your battery is dead, this is nothing to do with software (unless the stock rom killed it), so, buy a new one, or see if it is covered by the warranty
Click to expand...
Click to collapse
I just tried a different battery, because I have a second Trend Plus, which works perfectly. It still has the same problem.

zarkotom said:
Yes, but when I put it in the charger, it shows the charging animation....... And then if the battery is dead, how can it power the vibrations and the screen?
Click to expand...
Click to collapse
Oh sorry,didnt read properly, I will give you some advice tomorrow. Need some sleep.
Sent from my HUAWEI Y210-0100

[SOLVED] Reply
Sorry for answering a few months later, but I have to say that I had found a solution, which was the fact my Home Button wouldn't be presed in order to get in DOwnload Mode.
I appreaciate all your help.

S7 Black Screen + Blue LED

Hi All,
I wonder if you may be able to help. This morning we discovered one of our S7 phones was a black screen with solid blue light. It seemed completely unresponsive to touch, wouldn't wake. etc. The home, volume and power buttons seemed to do nothing. I plugged the phone into the computer, it didn't pick up a USB device.
Phone is stock from EE in the UK. No custom anything. Model: SM-930F 32GB.
EE and Samsung couldn't suggest anything to help.
We tried Power + Volume Down - This results in one of the following;
A (A battery with the current fill %) this happens when plugged in
B (Samsung Galaxy S7 powered by android) loading screen which then cycles or returns to a black screen with solid blue LED
We also tried Power + Volume Down + Home button. This does load the Warning screen about using a custom OS.
We have next day replacement warranty on the phone, i don't need to fix this phone. We only want to try and recovered some data and photos
Any help appreciated.
Kind Regards.

Shannaramoon said:
Hi All,
I wonder if you may be able to help. This morning we discovered one of our S7 phones was a black screen with solid blue light. It seemed completely unresponsive to touch, wouldn't wake. etc. The home, volume and power buttons seemed to do nothing. I plugged the phone into the computer, it didn't pick up a USB device.
Phone is stock from EE in the UK. No custom anything. Model: SM-930F 32GB.
EE and Samsung couldn't suggest anything to help.
We tried Power + Volume Down - This results in one of the following;
A (A battery with the current fill %) this happens when plugged in
B (Samsung Galaxy S7 powered by android) loading screen which then cycles or returns to a black screen with solid blue LED
We also tried Power + Volume Down + Home button. This does load the Warning screen about using a custom OS.
We have next day replacement warranty on the phone, i don't need to fix this phone. We only want to try and recovered some data and photos
Any help appreciated.
Kind Regards.
Click to expand...
Click to collapse
Hi, try turning off the App Power saving mode!! i had these problems also and it was caused by a app that cant handle the always on setting so when you use that app and then turn the phone in standby it will cause the freeze/black screen

Were you ever able to fix this problem? I just had it happen to me and I'm in the same situation.

This just happened to me. After an hour spent with tier II tech support, no progress.
You need to let the phone die completely. Once it's dead (and the blue light) is no longer dead, plug the phone into an OEM walk charger. In my situation,my s7 edge would vibrate to recognize the charge, than reset - before it could even build up a charge (so I thought). I left it alone for an hour or so, and amazingly, it booted up like normal.
Good luck!

I have this problem. How long will it take the battery to drain from fully charged with just the blue light on.

This just happened to me as well. I hope draining the battery works. This occurred when my battery drained and the phone turned off. When I tried to turn it back on after letting it charge for a few minutes it looked like it started to boot, then went to a black screen with a solid blue light. No button combination has any effect.
EDIT: Waiting until the battery died and then attempting to charge the phone has had no effect. No combination of keys has an any effect, either.
EDIT #2: I've taken my phone into the Verizon store. They tell me it's an issue with software and the phone is dead. They said this is "rare". Considering what I see here, I can't say how rare I find it. I have insurance, so they're replacing it, but now they're not keeping up their end of the deal on when the replacement phone will be delivered.

Flash it!
I had the exact same symptoms. What did the trick for me was draining out the battery and then fully charging it, WITHOUT TURNING ON the phone. If you do turn it on, you need to drain it out again. When the phone was fully charged I booted up the download mode and flashed the stock firmware with Odin. That was it, my Galaxy S7 was fully functioning again.
Hope this helps someone out there.

Just experienced kinda the same problem.
S7 died overnight on the charger. I was lucky to wake up on my own.
Just blue led.
I let it drain out over the day so it turned off (vol- + power no working).
Charged it a bit and try to go to recovery: loaded recovery but completely frozen.
I let it drain again and recharged it after it turned off.
Then I went to DL mode and reflashed latest carrier stock rom. AP. CP. BL. CSC. All.
Flashed fine! After rebooting it said "erasing...", rebooted and is back to the blue led only.
Strongly suggesting a hw issue at this point.
I'll let it drain again, fully recharge it, flash a non branded stock rom. If that wont work i'll probably need to bring it to my carrier on monday. Too bad its friday...
//Phone is r.i.p. even after a re flash of stock fw with full battery it only boots to blue led.
//Phone even deader. No more response in any way.
(some time later)
//Just received the repair report. The mainboard and some minor components were replaced under warranty even though my phone was rooted. Good thing for me it never turned on again.

AT&T S6 Possibly Bricked

my mother has given me her galaxy S6 that may be possibly hard bricked. she already got an upgrade done for an s*, so she isnt in dire need of getting it working, except to get her pictures and files off it.
it started off when it was turned off and charging over night, and had the battery logo showing fully charged in the morning. unplugged the phone, and it just would not turn on at all. plugged it back in, and no lights or anything on screen would show.
She works at a local best buy, and spoken with one of the samsung experts there, and they informed that it could be a bad battery.
she ordered a replacement battery off amazon, fast forward a couple days, it comes in, and i replace the battery.
it still does not power on at all, even with attempting to boot to recovery, download mode, or anything.
the only thing different since replacing the battery is that now the led at the top of the phone just lights up white, and thats it. the only way to turn it off is it open it up and unplug the battery.
is there anything i could do or try to see if i can get any life out of it before declaring it dead?