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[Q] Completely unresponsive Xoom

I've got a 4G Xoom, that I bought new about 13 months ago. It's been great to me so far. I had it rooted and was running CM 9 on it and had been doing so for about a month without any issues.
Yesterday, it was plugged into the charger and I happen to glance at it and it was doing some strange things with the screen, flashing on/off, black lines on part of the screen. I powered it off and left it alone for an hour or so.
Since then, it's been completely unresponsive. I've tried Vol Up+Power button countless times without it working. The charge light (white) came on briefly while plugged in, but then went off, never to return. The only reaction I can get is that after holding Vol up+Power causes an orange light next to the front camera to blink twice. That's it.
Any suggestions? Is it completly dead?

danman7 said:
I've got a 4G Xoom, that I bought new about 13 months ago. It's been great to me so far. I had it rooted and was running CM 9 on it and had been doing so for about a month without any issues.
Yesterday, it was plugged into the charger and I happen to glance at it and it was doing some strange things with the screen, flashing on/off, black lines on part of the screen. I powered it off and left it alone for an hour or so.
Since then, it's been completely unresponsive. I've tried Vol Up+Power button countless times without it working. The charge light (white) came on briefly while plugged in, but then went off, never to return. The only reaction I can get is that after holding Vol up+Power causes an orange light next to the front camera to blink twice. That's it.
Any suggestions? Is it completly dead?
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Open up the back take the battery out, put it back in.

Mjamocha said:
Open up the back take the battery out, put it back in.
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Given that it's sealed, how is this done? I hadn't even considered cracking the case.

danman7 said:
Given that it's sealed, how is this done? I hadn't even considered cracking the case.
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Click to collapse
You may not need to remove the battery as several people have reported success with just slipping some paper between the contacts for 30+ seconds. You will need to open it up though and here's a post with info and pictures to guide you through that: http://forum.xda-developers.com/showthread.php?t=1578365
On edit: here's another thread with good info for you http://forum.xda-developers.com/showthread.php?t=1528706&page=3
Good luck.

Well, I did the paper under the battery terminals for 15 minutes and still no joy.
One item of note is that when I plug the charger in, I'm not getting a white (or green) light. At least not much of the time. Occasionally, I can wiggle the plug a bit and it will light up, but I'm not getting to green at all.
I can put a multimeter on the battery leads, does anyone know how many volts/amps I should be reading?

Are we sure that its not just a crap connection with the charging plug. It is a wimpy little pin and my Xoom needs me to do a rain dance to get it to charge. I have to plug it in, wait a few seconds and then the white light comes on , but only if the wire is flipped back over the top of the screen. Another thought is I use Tiamat ics and there is an option to have the light on or off during charge and I think it is set to off as default, maybe you didn't set that up. I would bet its something stupid and you just need to keep playing with the wire and see if you can get it on. Good luck.
Sent from my Xoom using XDA

[Q] Can't boot

So I've had my transformer laying around living its own life for a bit, it's been a faily temperatured room, and it has had some power left on it. So today I picked it up and tried to boot it, it was fairly cold compared to my body heat, but it wasn't that cold again. Nothing happened, so I put it to charge for a bit and I saw the yellow/orange light, indicating it was charging. But it still wouldn't boot after that. So I am thinking if this is due to the low/normal temp it has been in, or the button is simply broken by itself? Like are there anyways other than the normal power button to turn it on? I know adb isn't running when the phone is fully turned off. But sending it in wouldn't be too good neither as it isn't running the stock ROM. Any help would be appreciated
__________
Edit:
So just tried booting it on again while it was charging, and saw the yellow/orange indicator blinking two times as I was holding it, which seems like the power button isn't hurt. And last time I booted it as said, it worked perfectly fine...

VZW Galaxy S6 won't turn on

Got a perculiar problem with the S6. The screen suddenly went black with just the blue LED blinking in the upper left hand corner of the sreen. I am assuming the phone went off completely as I cannot access it via the PC also. I have tried all possible button combinations for reset but no luck so far.
Anyone else experience this? Did you find a fix?
Sent from my SM-G920V using XDA Free mobile app

Well the phone is not off if the blue led light is blinking, I've never had it happen to me where the phone didn't come back though. I was using an app one day (YouTube I think) and the app crashed and bugged the phone out to where the screen went black but the led was blinking. I left the phone alone after several attempts of hitting home and power to get the screen to come back on and finally I think I plugged it into the charger and it kind of just fixed it self and has not happened again. This is the scary parts of not having a removable battery.
Sent From My Rooted Galaxy S6

I've got the 128GB and yes I have experienced this as well, twice! I hold down both volume buttons the home button and the power button at the same time, this will put you in maintenance mode. It'll take a couple of seconds holding those buttons but just keep them pressed. Be careful because when it does come on it comes on fast and factory reset is the second selection in that mode. The first time I did it I wiped my phone, the second time it happened I lifted my fingers fast enough not to make a selection. Give that a try and see what happens.

frostysax said:
I've got the 128GB and yes I have experienced this as well, twice! I hold down both volume buttons the home button and the power button at the same time, this will put you in maintenance mode. It'll take a couple of seconds holding those buttons but just keep them pressed. Be careful because when it does come on it comes on fast and factory reset is the second selection in that mode. The first time I did it I wiped my phone, the second time it happened I lifted my fingers fast enough not to make a selection. Give that a try and see what happens.
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Thanks very much.

Hey guys, i really need someones help. Everything in my life runs on my phone. The phone is Samsung Galaxy Note 5. Its screen is black and there is a blue blinking light. I have tried to hold the volume down and power buttons but it didnt do anything. It doesn't respond even after plugging in.

chaudharysafi said:
Hey guys, i really need someones help. Everything in my life runs on my phone. The phone is Samsung Galaxy Note 5. Its screen is black and there is a blue blinking light. I have tried to hold the volume down and power buttons but it didnt do anything. It doesn't respond even after plugging in.
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Sounds like you have the same problem as stated in OP. You could try doing what was recommended earlier in the thread. By the way, this is an inappropriate location to put your problem. Read the forum rules

Never rooted.
I am having the same issue. I have tried everything. Factory reset. Reboot/wiped cache and even trying to install verizon's Fireware again as it come only up to the Samsung S6 logo then goes blank. This is now my 4th replacement with Verizon and getting sick of it. How do I fix this? Odin stops at Get Pit mapping then when I do that says it can not install NAND. Using Odin 3.10.6 and 3.10.7. Tried mutli cables and restarted computer as well. This is driving me insane these phones keep doing this.

same problem except nothing comes on. no led, no reset, no computer recognition...

Same issue. Boots into and displays recovery fine and download mode. I can also bring up the safe mode menu ... just can't boot into the OS. Blue light on. I get a response in ADB when powered on, just can't enter any commands due to not being able to authorize access via phone screen.
Update:
Well as strange as it sounds, as soon as I plopped it down on the wireless charger for my S7 the screen came to life. It was at 95% battery prior to. Whatever gremlins got into the gizmos within the wireless charging apparatus seems to have caused this strange occurrence.

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.
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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.

Dead Galaxy s6's led turns on when charged.

Let me explain.
About 2-3 months ago i woke up and my galaxy s6 was completely dead,
i tried booting in safe mode, dowload mode, i tired everything in my power but it just wouldn't turn on.
I went to a chinese shop to get it checked out (it's not under warranty) and they said that the motherboard was kaput,
so i just brought it home and put it in a drawer and forgot about it, and used some old galaxy fame i had laying around.
Today i was looking for something else and came across the galaxy s6 again, so i thought to myself that i might aswell stick the charger in it, just for gigs, the phone is already trashed so why not try, and to my surprise i the LED turns on, but it's not red, like if it's charging, it's a white-purpleish color and its just stays there, no blinking or anything, i tried unplugging it and the led stays, wich leads me to believe that the battery and expecially motherboard actually aren't completely busted. I tried plugging it into my laptop but no responses, i even tried having ODIN open while plugging it in, but 0 response.
So i tried the usual troubleshooting:
power button, power button + volume down + home button, power button + volume up + home button
but nothing worked, i have googled a bit and haven't really found anything about this, so i suppose the purple led is some sort of "red ring of death" telling me the phone is just done for? (it is 2 years old and it has been used to s*** so i wouldn't be surprised.)
update: i've fiddled around with the phone a bit more after writing this and i noticed it was getting a tiny bit warm, wich indicates either one of 2 things:
-the battery is just fine and it's charging;
-there is a short inside of the phone, wich is the cause of its death.
Update2: i saw with the corner of my eye that the led changed color, so i turned around and saw that the led turned to a magenta color (again not the red charging led) and then just turned off completely, i guess it's beacause i charged it for 2 minutes and uplugged it right after.
Update3: And i'ts gone, led's dead and it won't turn on anymore, RIP!