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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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
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] Blank screen when turning on phone?

Hi, I'll explain what happened.
My phone recently turned off (the screen kind of fizzled away to black) So I assumed this was the battery running out. When I got home I put it on charge and as I usually do waited a few minutes, then tried to turn on, to charge whilst on, the screen lit up the phone vibrated and the start up tune played, but only a lit up blank screen appeared?
I thought it might need more charging so I removed the batter to turn it off and put on charge again, whilst it was "charging" there was a flashing amber light for about 4 seconds at a time, this never turns steady or green, when just leaving on charge.
After numerous batter removals and replace the phone still does the same thing when turned on, but now with no sound, and still appears if the screen is on but blank and the four soft keys are lit, then if I press the power button or if I leave it, the screen goes off itself until I press the power key again (this same thing that would happen if going to lock screen). All of this happening with a now flashing green light?
I tried to access phone by USB cable and although laptop picks up fact something is plugged into USB, it doesn't appear on HTC sync or memory card doesn't appear.
When trying to hold in volume down and power on it's as if it's going to the right screen but still blank.
Stock rom on phone, S-OFF
Anyone have any ideas, without replacing phone?
Thanks

its seems like your phone has bricked.
1. First try this
2. if step 1 doesnt work, follow this
read step by step. good luck!

Have you tried a new battery? My phone went completely black while charging and it showed no signs of life, no charging light nothing. It was a new battery with about 60Percent charge when I put it on the charger. I noticed like you did, I tired to charge more but not even a light would come on. I happened to have another fully charged battery I kept as a spare. When I put the spare battery in, the phone sprang back to life! I threw the other battery away and have had zero problems since. So I suggest you try a new fully charged battery before you do any thing else. Strange thing was the battery I was using was fine the day before and even had the 60 percent charge when I put it on charger. I'm not sure how it happens but somehow the battery just died on charger. So give a new battery a try and see if it will also help you. If it doesn't, then likely it's failure of your device. But please do try because the exact same thing happened to me and the new fully charged battery fixed the problem! I'm hoping it will also fix it for you! Best of luck! You can get a good battery online for under 20 dollars. I recommend Anker extended battery. I really hope this works for you! Let us know.

badboy47 said:
its seems like your phone has bricked.
1. First try this
2. if step 1 doesnt work, follow this
read step by step. good luck!
Click to expand...
Click to collapse
Thanks for the reply, I'll try these two and let you know what happens,
realsis said:
So give a new battery a try and see if it will also help you. If it doesn't, then likely it's failure of your device. But please do try because the exact same thing happened to me and the new fully charged battery fixed the problem! I'm hoping it will also fix it for you! Best of luck! You can get a good battery online for under 20 dollars. I recommend Anker extended battery. I really hope this works for you! Let us know.
Click to expand...
Click to collapse
I'll try this as a last resort and if not I'll get a new phone, cheers and I'll let you know what if anything works

So I get to the point where I have to ./brickdetect.sh and the phone isn't picked up or recognised, any idea how I can get the laptop to pick up the connection properly?

Moto g3 2015 hidden LED switched on

Hi
suddenly from today i have a led light turned on inside my front speaker
i googled and found this
http://www.techdroider.com/2015/08/moto-g-3rd-generation-also-have-hidden-led.html
I have purchased the phone on 26th Oct 2015 from Flipkart​.
No matter what I do the light wont go off. Even if i power off the phone the led stays.
Please let me know what to do.

justrajdeep said:
Hi
suddenly from today i have a led light turned on inside my front speaker
i googled and found this
http://www.techdroider.com/2015/08/moto-g-3rd-generation-also-have-hidden-led.html
I have purchased the phone on 26th Oct 2015 from Flipkart​.
No matter what I do the light wont go off. Even if i power off the phone the led stays.
Please let me know what to do.
Click to expand...
Click to collapse
Disconnect your USB cable, is it still lit? The LED is a charging indicator in some ROMs but the fact that it is on when powered off is odd. If the LED is lit and no USB cable is connected and the power is off, this sounds like an electrical issue inside the device but to be sure I would do a full factory image flash and test it.
We all know it has an LED, have for some time... but it is hard wired to the charging circuit so when activated it only shows charging status and nothing else. If yours is one all the time, it could indicate a problem with the hardware.

acejavelin said:
Disconnect your USB cable, is it still lit? The LED is a charging indicator in some ROMs but the fact that it is on when powered off is odd. If the LED is lit and no USB cable is connected and the power is off, this sounds like an electrical issue inside the device but to be sure I would do a full factory image flash and test it.
We all know it has an LED, have for some time... but it is hard wired to the charging circuit so when activated it only shows charging status and nothing else. If yours is one all the time, it could indicate a problem with the hardware.
Click to expand...
Click to collapse
Hi
It glows without any cable attached. I will go ahead and file for a replacement.

that is scary can you take a snap of it ?? i want to see how it looks

nandakis4 said:
that is scary can you take a snap of it ?? i want to see how it looks
Click to expand...
Click to collapse
It looks white. Even mine just flashed up one day for 0.5 seconds. You can do it to. Just discharge your phone completely until it turn off automatically then goto a very dark room cause the light is to dim and then plug your phone. You will see it flashed up for one second

Does that mean a USB cable isn't required to make it glow
Since you can't touch the battery, I suggest you discharge it it completely . Keep it mines it can be dangerous though.

Hi
It glows even if i switch off the phone. I have asked Flipkart to replace my handset. But they were trying to say that i should take it up with the company. I was stern and asked them to replace it since it is just 15 days since i brought the phone. They have told me that they will send the engg. tomorrow. Will keep you guys posted.
http://imgur.com/Z168hK4

Awesome.. I want thay

Did you get this issue fixed ?

Same issue !!!
Even I have the same issue since yesterday .. LED is always ON even after powering off the device. Any Idea how to resolve this issue ??

Did you get any solutions for this ?? I am also facing the same issue , I did a factory reset. But the problem still exists.
justrajdeep said:
Hi
suddenly from today i have a led light turned on inside my front speaker
i googled and found this
I have purchased the phone on 26th Oct 2015 from Flipkart​.
No matter what I do the light wont go off. Even if i power off the phone the led stays.
Please let me know what to do.
Click to expand...
Click to collapse

See here on XDA:
http://forum.xda-developers.com/mot...m-controls-t2951869/post57014759#post57014759
It's applicable also to Moto G 3rd gen.
If with
echo none >/sys/class/leds/charging/trigger
LED stays on, it must be an hardware failure.

I have the same problem! Since two days ago the front LED is always switched on!

Weird, it popped up just an hr ago in my moto g, gen 3 as well bought in India, via Flipkart and won't go away. It has a flickering (seemingly pseudo random) characteristic in periodicity as well as luminosity potentially indicating a short-circuit of led power-circuit behind front speaker(s) or worse, some fourier optical-transmission pattern. It flickers even when powered off and that says something about this LED behind front-speakers. A factory reset also did nothing to it.

Hey guys! I aslo facing the same problem.i tried every thing except Root. I have tried power off, battery 100% drain,factory reset but nothing can stop led. please suggest if any one have its solution

i have tried these apps, and one of the kernel for our device can turn it on without any app, but what i want is enable without any mod or app.

gunjan.kumar said:
Hey guys! I aslo facing the same problem.i tried every thing except Root. I have tried power off, battery 100% drain,factory reset but nothing can stop led. please suggest if any one have its solution
Click to expand...
Click to collapse
Hey man did you managed to solve this issue? My led started glowing a few hours ago, I have 3 months with the phone.

Hi all,
is the issue still solved? today my phone has started to show the same thing,even after it's powered off the led still glows mildly. it's been 5 months i'm using it. I've wiped data,cache,system parititions then flashed a stock LP rom but the issue still exists. From custom Kernel if the 'Battery Light' option is turned ON when the phone is being charged it glows brightly. It's really uncomfortable to see it's lit all the time. I wish I could have removed that LED light from there lol
Anyone please have a look

Hi!
I have the same problem with the white led. I contacted Motorola Support (in Canada) and I got to send my phone to a service center. I just got my phone back and they say it's not repairable because of a liquid damage to the main board. The thing, my phone never got wet!
I don't know if others who contacted Motorola got the same result...

I just had one start doing it too... if warranty won't replace it then I think I will damage the LED to try and disable it to hopefully rid of any extra battery drain.
EDIT: Well i'm not sure about this because i was thinking about drilling with a super small bit down to the LED to disable it, however i don't know how the earpiece speaker functions and whether it would damage it's function as well.

K1 tablet screen turns on randomly

I posted this in the geforce forums as well with no response so I'm trying here. Original post: https://forums.geforce.com/default/topic/903373/k1-tablet-screen-turns-on-randomly
I haven't had this tablet for longer than a week now. When it's charging the screen turns on randomly. There will be no notifications or anything on the screen. It keeps happening when it's charging and i have no idea why. I don' t have a case yet so it has woken me up a few times over the night from lighting up my room whenever the screen turns on.
This doesn't seem like normal behavior to me.. has anyone had this happen to them? Should I be concerned and try to get a new one?

Has anyone fixed the problem?
Thanks

Do you have locked bootloader and a custom ROM installed?

Sjamaan said:
Do you have locked bootloader and a custom ROM installed?
Click to expand...
Click to collapse
Nope, everything is stock..

Then I don't know man...
The same happens to me with every custom ROM in my locked bootloader tablet. With stock it behaves normal, so I concluded that somehow it has to be something related to bootloader or something.
But re-reading you again, it isnt the same thing. In my case, The whole tablet turns on after being off when charging. Not The screen only. If I were you, I would do a factory reset and would see if it does The same thing with no other apps installed.

kllngtme said:
I posted this in the geforce forums as well with no response so I'm trying here. Original post: https://forums.geforce.com/default/topic/903373/k1-tablet-screen-turns-on-randomly
I haven't had this tablet for longer than a week now. When it's charging the screen turns on randomly. There will be no notifications or anything on the screen. It keeps happening when it's charging and i have no idea why. I don' t have a case yet so it has woken me up a few times over the night from lighting up my room whenever the screen turns on.
This doesn't seem like normal behavior to me.. has anyone had this happen to them? Should I be concerned and try to get a new one?
Click to expand...
Click to collapse
I have this happen using both the stock kernel and the BitO kx 060 kernel, but only when charging from my laptop usb. Using ampere to monitor battery charging I notice that my laptop's output fluctuates up and down, sometimes down to zero. For me I'm assuming it turns on when it either stops getting a charge, or resumes charging. I do not have this problem using a wall charger, but i am using a 5v 2a charger. Hope this is of some help pointing you in the right direction.
Sent from my SHIELD Tablet K1 using Tapatalk

Exile1975 said:
For me I'm assuming it turns on when it either stops getting a charge, or resumes charging. I do not have this problem using a wall charger, but i am using a 5v 2a charger. Hope this is of some help pointing you in the right direction.
Click to expand...
Click to collapse
ooohhh.. that's a good idea. Thanks! I'll have to try another power source when I get home. I'll try that and will update the thread with my findings.

Hey, just thought I'd ask if you ever found a solution to this? It's happening to me, too: brand new, entirely unmodified K1, straight from the shop. While charging, the screen keeps turning on and off, which is not only mildly annoying but probably makes the charging take a lot longer than it needs to.

That's actually normal for Android devices. If the screen is off and you plug the charger in, the screen goes on. Same when you unplug. So that you see/know it's indeed charging. However, you can change the screen Sleep time and Daydream under Display.

if i leave my moga controller connected my screen keeps turning on

Happens to me as well, wild guess for me is there isnt a charging animation for the tablet when it is powered off, if i power mine off the second i plug it in to charge it will light up with a black screen 1st then proceed to normal boot, or sometimes there's a battery charging pic then it boots normally

Red Blink Errors - No Screen

So I have no idea what's going on with my phone:
It consists of 3-4 sucessive red LED flashes, can see a charge icon on the screen for like 0.25 ms (literally haha), and then it shuts off and this process just repeats.. any idea what is going on?
I've attached the video here: https://youtu.be/rnW2euEdKaE
If it matters: The screen was cracked, and subsequently replaced, but that was some time ago..

Hi,
Did you try another charger ?

Definatly for some service

coolest35 said:
So I have no idea what's going on with my phone:
It consists of 3-4 sucessive red LED flashes, can see a charge icon on the screen for like 0.25 ms (literally haha), and then it shuts off and this process just repeats.. any idea what is going on?
I've attached the video here: https://youtu.be/rnW2euEdKaE
If it matters: The screen was cracked, and subsequently replaced, but that was some time ago..
Click to expand...
Click to collapse
I was having the same issue... Try holding the power button for 10-20 seconds too and see if that brings it out of its coma...it helps with my phone

Hey all, thanks for the suggestions.
1. I tried different charger, in fact 3 different ones.. still nothing
2. Service? What kind of service?
3. I held power down, it gets to the huawei splash screen, for again.. 1 sec than restarts
Any other suggestions, thanks!

I don't know if it's exactly the same thing, but perhaps Is this a way to make your phone working again
http://eagerfish.eu/my-huawei-battery-stopped-charging-red-blinking-charge-indicator/

maxou2604 said:
I don't know if it's exactly the same thing, but perhaps Is this a way to make your phone working again
http://eagerfish.eu/my-huawei-battery-stopped-charging-red-blinking-charge-indicator/
Click to expand...
Click to collapse
Tried that, took the battery out, plugged it in.. no more flashing red LED.. i see the huawei screen now, but it boot loops. If I insert the battery in while its plugged in like the above, than it does that led flash, and no screen.. so i'm thinking bad battery??

It's certainly the battery,
Last time your phone was working, did you use all the battery (until 0% and then power off by itself ? )
You can search a new battery on the Internet,
With the Model code at the top of it, you will find easily a new replacement battery)

If your battery goes under a certain level of charge, ie close to 0%, it's possible the onboard security prevent it to charge normally.
You can try the freezer trick, it helped me to recover an ipad with the same condition.
-Put your phone in a ziplock bag to prevent frosting and humidity.
-Let it rest at least 1h in the freezer
-As soon as you get it out of the freezer, plug it in a wall charger and wait at least 15 min before turning it on.

You should claim your warranty, contact your vendor.

maxou2604 said:
It's certainly the battery,
Last time your phone was working, did you use all the battery (until 0% and then power off by itself ? )
You can search a new battery on the Internet,
With the Model code at the top of it, you will find easily a new replacement battery)
Click to expand...
Click to collapse
I don't believe so, Its my backup phone so there is potential the battery would have hit 0% as I don't frequently use/charge it..
Ezekiel3 said:
If your battery goes under a certain level of charge, ie close to 0%, it's possible the onboard security prevent it to charge normally.
You can try the freezer trick, it helped me to recover an ipad with the same condition.
-Put your phone in a ziplock bag to prevent frosting and humidity.
-Let it rest at least 1h in the freezer
-As soon as you get it out of the freezer, plug it in a wall charger and wait at least 15 min before turning it on.
Click to expand...
Click to collapse
Thanks, will give this a try!
netvorCZEK said:
You should claim your warranty, contact your vendor.
Click to expand...
Click to collapse
I had the phone unlocked/screen swapped.. doubt huawei will honor warranty

coolest35 said:
I don't believe so, Its my backup phone so there is potential the battery would have hit 0% as I don't frequently use/charge it..
Thanks, will give this a try!
I had the phone unlocked/screen swapped.. doubt huawei will honor warranty
Click to expand...
Click to collapse
Hi there.
Did you managed to fix that? I have same problem. I just replaced screen with new one.
Firstly I connected new screen to motherboard and it worked perfectly. I put it all together, glued new screen to frame, connected flex'es to mobo and... nothing. Red light blinks, and screen flashes with "HONOR powered by Android" screen if I disconnect battery and just plug to usb.
Battery is not a problem, before repair it had about 70%, and now it's voltage is around 4,05V.
Any ideas?

same thing was happening to my huawie honor 8 for some time now... i brought a new screen n that didn't fix the problem ,,,,, the person that fixed the screen for me said it needed a power boost( or something to that extent) n in like a hr or so after not being able to start just the screen blinking it came on!!!!!!! i was ecstatic tbh... sadly like a week n a half- a month later the **** stopped working again ... the red light comes on when it charges n every thing but the screen doesn't fully respond just stays blank. i definitely think its a battery problem but not too sure