Screen flicker when charging - Nexus 6 Q&A, Help & Troubleshooting

When I put my nexus to charge, screen flickers like it needs more power. But when I increase the brightness it goes away or I can't see it. Tried a different power outlet as well. And I'm using the turbo charger.
Anyone experiencing this?

Truckerice said:
When I put my nexus to charge, screen flickers like it needs more power. But when I increase the brightness it goes away or I can't see it. Tried a different power outlet as well. And I'm using the turbo charger.
Anyone experiencing this?
Click to expand...
Click to collapse
Yes I am also experiencing this issue. I contacted the (UK) Google Play support and they suggested:
Reboot to Safe Mode (Test Charging)
Factory Reset Device (Test Charging)
In both instances Google Play were trying to eliminate any applications that may be causing the issue. Needless to say I tried both suggestions and the issue still prevails. I have requested a replacement device but you are quite right...this only occurs when you use the Turbo charger - I tested a HTC M8 charger and the issue disappeared. It is also not consistently replicated - sometimes it happens, sometimes it doesn't. It seems to occur between 30%-80% of charge and then stops (I could be imagining that!).
I am hoping its nothing serious and either a faulty charger, a feature/symptom of "turbo" charging or at best just a one off faulty device. I may even ring Motorola themselves and see if they can explain whether it is a fault or a non intentional side effect. The latter would be very disappointing.
Have you made any progress?

Mine does the same thing. I'll try with a different charger and stuff later, but just thought I'd let you inow that the two of you arent alone.
It doesnt bug me. Normally when my phones charging I'm not using it.

Same here. Was gonna post but wanted to wait and see if someone else would first. Kinda annoying but not a big deal. It doesn't do it with my car charger and maps open and that's usually the only time I charge while using the screen.

I contacted Motorola and they suggested to wipe the cache too. I haven't successfully been able to do that yet. I think also the representative may have mistaken my explanation as definitely being caused by an application. I doubt it will rectify it but nevertheless here is the response below, it may help. Either way both Google Play (UK) and Motorola seem unaware/surprised regarding this issue, yet still very interested in helping fix it.
Thank you for contacting Motorola.
I am sorry to hear that there is a problem with you phone.
Please try the steps below to see if they can solve the problem.
If the first step does not solve the problem please continue with the next.
1. Safe mode
To Enable Safe Mode, please try the following:
1. Press the Power key
2. Touch and hold Power off
3. Touch OK when Reboot to safe mode appears
4. Phone will reboot and Safe Mode will appear in bottom left corner
5. Check if the problem is solved. If this is the case continue with the next steps. If not continue with the Clear Cache option
6. While in Safe Mode, launch apps one at a time to identify the app causing the problem
7. Remove the app that causes the problem from the device
To remove an application:
1. From the home scree, tap the circle with 6 dots (Menu)
2. Tap and hold the application that you want to remove
3. Drag tp Uninstall at the top of the screen
4. Confirm by touching OK
After you have identified and removed the application simply power cycle the device to disable safe mode.
2. Clear Cache
CLEAR CACHE PARTITION
1. With the phone powered off, press the VOL DOWN KEY for 2-3 seconds then POWER key then release.
2. The device will display different BOOT OPTIONS
3. Use the VOL DOWN Key to SCROLL to Recovery and VOL UP Key to select
Tip: If the device reboots, you may have waited to long to make a selection, you will need to begin the process again.
4. The device will display the Motorola logo and then the Android in distress ( logo with Exclamation mark)
5. Press and hold the VOL UP key for 10-15 seconds. While still holding the VOL UP key tap and release the POWER key
Tip: You can try this step, holding the phone in landscape. If you are stuck on step 6, try a force reboot by pressing the Power key and Vol Down key, and start the process again.
6. The device will display additional menu options (Text will appear in BLUE)
7. Use the VOL DOWN Key to scroll to wipe cache partition and the POWER Key to select this option
8. The device will then perform the partition wipe
9. The device will reboot and start the normal power up sequence
If the problem is still not solved please backup the information on the device and continue with a factory data reset.
Once you have backed up your information, please try the following to perform the factory data reset:
1. From the home screen, tap Menu icon (a circle with 6 dots on it, located at the bottom).
2. Tap Settings.
3. Under the Personal section, tap Backup & reset.
4. Tap Factory data reset.
5. Tap Reset phone.
6. Tap Erase everything.
Please allow several minutes for the factory data reset and reboot processes to complete.
To setup the device after the reset has completed, refer to Initial Activation and Setup.
This should solve the issues you have encountered.
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Click to collapse

Happens to me too. Don't see it as an issue unless the flicker occurs when the phone is disconnected from the turbo charger

Happens to me as well. Also, when I wake up in the morning, I can "hear" my phone charging. Something makes a constant noise, and it goes away as soon as I take the charger off.
Only hear it when the phone is fully charged and still on charger.

Thank you for the reply guys. Since I'm on my holidays I didn't have that much time to deal with this issue. I was going to send back the phone when I get back but now i'm thinking to buy a wireless charger or use another charger since phone get extra hot too when you are using the turbo charger.

vikramjatt11 said:
Happens to me as well. Also, when I wake up in the morning, I can "hear" my phone charging. Something makes a constant noise, and it goes away as soon as I take the charger off.
Only hear it when the phone is fully charged and still on charger.
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Click to collapse
you shouldn't use the turbo charger over night. get a normal one or get a Qi charger.

beast18 said:
you shouldn't use the turbo charger over night. get a normal one or get a Qi charger.
Click to expand...
Click to collapse
Says who?

Hi
Just a quick update.
I received my replacement device and I haven't seen the flickering yet - hopefully that is the end of it for me.
As somebody else has said, if it doesn't bother you then save the hassle. If it does, Google Play seem happy to replace under warranty.
Thanks for the comments.
Sent from my Nexus 6 using XDA Free mobile app

I experienced similar things with the screen flickering but this was off the charger as in not using the charger. I notice it most when you have the screen brightness low up to about 25% with the adaptive lighting turned on. The moment I turn off the adaptive lighting and raise the brightness above 40% the flickering seems to go away. So my screen flickering issue has been when I'm not using the charger. Has anyone else experienced this or might this be a defective screen?

My screen flickers at low brightness only. Its not that bad and I figure it night have to do with how dim the screen gets in the dark but I'm not sure. I may eventually RMA it, however it doesn't bother me currently so in fine with it happening.

beast18 said:
you shouldn't use the turbo charger over night. get a normal one or get a Qi charger.
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Click to collapse
Thank you. I've been using a regular charger at night for 2 days now, no noise in the morning anymore. I just use the turbo charger for a quick charge if I need one during the day.

beast18 said:
you shouldn't use the turbo charger over night. get a normal one or get a Qi charger.
Click to expand...
Click to collapse
Why? The quick charger only draws what the power control chip determines it needs. It won't overdraw current. I've used my quick charger over night many times with 0 issues. I've also used my quick charger 2.0 car charger on a road trip the whole way and again no issues. My battery life is still the same 6-6.5 hours SOT that it was when i bought it. I now use my qi charger. Where is the evidence that says its bad? If there isn't any then its not good to spread rumors about it being bad. (I'm not saying your losing, I just want to see where/how your concluded that)

Pilz said:
Why? The quick charger only draws what the power control chip determines it needs. It won't overdraw current. I've used my quick charger over night many times with 0 issues. I've also used my quick charger 2.0 car charger on a road trip the whole way and again no issues. My battery life is still the same 6-6.5 hours SOT that it was when i bought it. I now use my qi charger. Where is the evidence that says its bad? If there isn't any then its not good to spread rumors about it being bad. (I'm not saying your losing, I just want to see where/how your concluded that)
Click to expand...
Click to collapse
When you leave your phone on the turbo charger overnight, do you hear a noise in the morning coming from the N6? I could hear a noise coming from the charging port in the morning on the turbo charger, its fine now with a regular charger.

vikramjatt11 said:
When you leave your phone on the turbo charger overnight, do you hear a noise in the morning coming from the N6? I could hear a noise coming from the charging port in the morning on the turbo charger, its fine now with a regular charger.
Click to expand...
Click to collapse
Nope, mine doesn't buzz at all when I leave it. Ill test it again later, but I haven't had this issue. I have 2 of the quick chargers for my home and one for my car and my wife uses it for her S5 without any issues too. Maybe your charger is the issue?

Quick charge only charges quick for about 20 Mins then turns to the normal 5v 1a setting that most chargers use. I read the specs somewhere and it is completely determined by the phone. So it's not gonna hurt using it all the time. However if yours is buzzing it may be the charger like the others said.

You could download battery monitor widget and watch the voltage and amps that its drawing. At peak it draws 2.5amps at 9v if I recall correctly. I'll check it when my battery gets low again. The quick charger doesn't have any adverse effect that you would notice over a standard 2 year usage for a phone any more than a standard charger. Unless your battery is really hot all of the time it won't degrade any faster.

I am getting this flickering when charging with turbo charger too.. Hmm I wonder if this will kill the screen

Related

[Q] Bought a Touchpad off ebay - is it bricked?

Hey helpful XDA'rs,
After somehow avoiding to have a tablet for this many years, I decided to get a 2ndhand Touchpad after seeing all the reviews, ROM support, price to relative specs, etc... so I bought a second hand 32GB tablet off of ebay. In fact, this one right here... http://www.ebay.com/itm/271192613408?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Anyways, I got it earlier today, and plugged it into the wall charger it came with (the circular OEM HP one, with the long cable with a silver circle on each end). When I plugged it in, the little white alternating light under the home button switched on, so I figured it was working. Had it plugged in for about a half hour before I decided I couldn't contain my excitement and wanted to power it up. Of course nothing happened. Just a black screen and that little white alternating light mocking me.
I immediately hit up the google machine and XDA and realized that the screen was supposed to be on with an actual charging icon/animation or something like that. Up to this point, I still have not seen any sort of anything appear on screen. Just that little white light. Now yes, I've read through the posts.
First I checked to see if the HP charger/cable would charge my GS2. It did, and quickly (not some sissy trickle charge) and the circular HP thing felt warm to the touch. I also unscrewed the cylinder HP charger and blew in there with my breath pretty hard to clear out any possible dust, then screwed it back on tightly. I have used different cables with the HP charger, and used the HP cable with my GS2 charger. Same results, just that mocking little light, and the HP cylinder did not feel warm to the touch.
I have done pretty much all the button combinations I could find for at least a minute, with no results. Power + home, power + rapid firing the home button, power + volume up + home, power + both volume + home, etc. This is with the charger plugged into the wall.
I did notice two changes though.
#1 When I hold power + home, after maybe 12 seconds, the light stops alternating and is off - for about 2 seconds. Then the alternating starts back up. When the alternating light stops when I do this, it is always for the same amount of time, about 2 seconds, then it starts up again, regardless of if I continue holding the power + home, or if I immediately let go of the buttons, or immediately let go and then try pushing other buttons; it is always the same, the flashing stops after about 12 seconds, pauses with no lights at all for about 2 seconds, and then starts back up again.
#2 When I hold power + home + volume up, after about 12 seconds, the white alternating stops completely and never comes back if I don't do anything else. There are only 3 ways that I have found so far that will get the alternating white light back. First, just simply unplug and replug in, the light immediately comes back. 2nd and 3rd ways are to do the previous two button combos again, (power/home or power/volup/home for about 12 seconds).
MOVING FORWARD, here's where some interesting things happened, which hopefully is enough to have someone knowledgeable know what might be going on.
I decided to try #1 and #2 again, but this time, instead of the wall charger, I plugged the USB cable into one of my computer USB ports. My computer didn't make a device connect sound, nor show any kind of drive being connected in my computer. Just the same alternating white light.
Trying method #1 above, did the same thing. Power/home, alternating light would turn off for 2 seconds then start back up. Still no sounds from computer.
Trying method #2, finally something! When I held power/home/volup, after about 12 seconds the alternating light would turn off for good as expected, but then my computer made a noise! Not the device connected sound (low note to high note sound), not even the device disconnected sound (high note to low note), but that 3rd "device failed to connect" sound, the (three low tone sound). If you go to your windows sounds you'll know which sound I'm talking about. Anyways, I was glad to hear that the computer realized something was there. Although it was just a sound. Nothing in my computer, but for a second I did see a pop-up bubble in my lower right hand notifications say "device did not install correctly" or something like that. Now, with the touchpad still plugged into USB, and the alternating light off, if I either remove the cable (or hold power/home or power/home/volup for 12 seconds so the alternating light goes back on) then my computer makes that "device disconnected" sound. The hell is going on? I can duplicate those two sounds (the device failed to connect sound, and the device disconnected sound) over and over by holding power/home/volup for 12 seconds, and then unplugging and replugging the USB.
Having said all this, anyone have any ideas? Again, up until this point, I have yet to see anything appear on screen. Just that damn white alternating light.
I also know that this might also be a case of the really dead battery. It may just need to charge for like 48 hours via HP wall charger, or it may need to trickle charge for like 48 hours via USB to computer. If that's what it takes, but jesus I'm impatient and don't want to wait a week or longer, especially if I have a small window of opportunity to return this via ebay. So for tonight, I'm going to trickle charge via USB, but with the alternating light OFF via method #2, because at least with #2 and the light off, my computer makes a sound confirming something is plugged in. My rationale is that if it thinks something is plugged in, it will charge it.
Thoughts guys? A million thanks to anyone who actually read this entire essay and is still willing to help out!
Edit: the USB trickle charge I am attempting overnight tonight is via my GS2 cable, NOT the HP cable, since I've read all over the place that the HP cable is of poor quality.
Sometimes, when the battery has been completely depleted, it takes a real long while (24+ hours).
Your cable and charger seem to be Ok, so just plug it into the wall and check on it it tomorrow.
Post again if you keep having problems and we should be able to help you.
Good luck.
Not sure it will help but but holding power,home and volume down button is reboot ,I've had to hold it for 15 to 17 seconds before....
Check here also : http://forums.webosnation.com/hp-touchpad/292681-help-new-touchpad-wont-turn.html
Sent from my skz_tenderloin using xda premium
When i got my touchpad it was deeply discharged. I had to let it charge for several hours before it did anything at all. However i used the weak Samsung charger, so there was at least that message "please use the original charger" on the screen. So maybe you just need to wait...
Good luck though
Cheers
Chris
To my joy, I woke up today with the screen on displaying a low battery charging icon. It's in the red though, but that's definitely progress. Is there a charging animation, or is it just a still icon? Mine has no animation and wanted to make sure mine didn't freeze.
I wanna say there is no animation just the icon (its been a long time since I've seen it ) but it only needs around 10% to boot... Now that you see the icon try holding the power and home button for 15sec and see if it boots.
Sent from my skz_tenderloin using xda premium
I went and grabbed some food and upon returning I saw that my TP had completely turned itself on and was on some sort of setup screen, asking for me to select a language. I'm running through the setup now - two things. First, is it necessary to create a webOS account? Kinda like creating a google account for android? I intend on installing cyanogen10 on this, but wasn't sure if a weOS account was necessary. Or perhaps it's helpful. Second, the touch response is HORRIBLE right now doing the setup, takes multiple attempts to push an area, and with much more pressure than I would think is necessary. I'm assuming this is to low battery,. and it will improve as the battery returns to normal levels?
Not sure about the touch response issue but the low battery could be a possibility , as for the webos account i believe you only need to do that in order to use webos , i would do it anyways though .
Check here if you don't feel like making a webos acct: http://forums.webosnation.com/android-webos/318426-how-install-android-without-setting-up-webos.html
Sent from my skz_tenderloin using xda premium
Yeah it was low battery. After a little more charging the touch response works fine now. Thanks! I was really stressing that I received a dead TP.
There are several programs available in the play store that will turn your tablet off when the battery % reaches a certain level. I use Automatelt (thanks to sstar for the tip) set at 20 %.
ManImCool said:
Yeah it was low battery. After a little more charging the touch response works fine now. Thanks! I was really stressing that I received a dead TP.
Click to expand...
Click to collapse
Good to hear ! Happy installing /flashing.
Sent from my skz_tenderloin using xda premium
chicle_11 said:
There are several programs available in the play store that will turn your tablet off when the battery % reaches a certain level. I use Automatelt (thanks to sstar for the tip) set at 20 %.
Click to expand...
Click to collapse
Is 20% the general consensus around XDA where it shouldn't go any lower than? Are some people setting it higher? Lower?
I have mine at 9% . some prefer more battery left to feel safer i suppose , basically you don't want to let your tp battery drain completely because it might possibly brick
Sent from my skz_tenderloin using xda premium

[Q] [Help Thread] Nook HD not booting at all

I recently went on a 3 month trip. Before I left, my nook was working perfectly fine, when i got back, it didn't work at all. It's not dead because i left it plugged in overnight but it still didn't turn on. when i plug it in the LED goes from orange to green and then off (or green to orange, i can't remember). The screen doesn't turn on at all. I can't get to recovery either.
This is a Nook HD, I believe it had CM11.
:crying:
Can this be fixed
or should i plan it's funeral
Same here
The same has happened to me. Screen doesn't turn on, but there is power, I can play it into my laptop and something is there, just not enough.
Good excuse for a new tablet!
It can be fixed. I've done it before. It has to do with the fstrim not being compatible with certain hardware versions of our device. If I can remember how I fixed it, I'll post it here. Trying to fix mine (again).
tambourineman86 said:
It can be fixed. I've done it before. It has to do with the fstrim not being compatible with certain hardware versions of our device. If I can remember how I fixed it, I'll post it here. Trying to fix mine (again).
Click to expand...
Click to collapse
If would be fab if you could fix. Seems to be a common issue
I was able to fix it. YMMV.
1) Make sure the Nook is completely off and unplugged
2) Take out your sdcard
3) Hold down power button until the "battery depleted" icon shows, then promptly plug in the power before the icon disappears.
4) Let it set. The screen will go black, then it will attempt to boot and get stuck on the faint black screen, but this time, the charging light should stay amber.
If you want to be safe, wait until the device reboots itself. That could take hours though. If you're plugged into the wall wait at least 30 - 45 minutes before holding the power button down til it shuts down and then rebooting it (with the sdcard inserted).
Good luck, I hope it works for you.
EDIT: Also, I've read this may also have to do with wifi sending the device into some sort of strange bootloop when the screen is off. I personally believe it has more to do with the fstrim of JB but perhaps changing the wifi sleep policy may prevent this issue from happening again. I'm skeptical, but figured I'd pass that info along if anyone wants to try it as well.
tambourineman86 said:
I was able to fix it. YMMV.
1) Make sure the Nook is completely off and unplugged
2) Take out your sdcard
3) Hold down power button until the "battery depleted" icon shows, then promptly plug in the power before the icon disappears.
4) Let it set. The screen will go black, then it will attempt to boot and get stuck on the faint black screen, but this time, the charging light should stay amber.
If you want to be safe, wait until the device reboots itself. That could take hours though. If you're plugged into the wall wait at least 30 - 45 minutes before holding the power button down til it shuts down and then rebooting it (with the sdcard inserted).
Good luck, I hope it works for you.
EDIT: Also, I've read this may also have to do with wifi sending the device into some sort of strange bootloop when the screen is off. I personally believe it has more to do with the fstrim of JB but perhaps changing the wifi sleep policy may prevent this issue from happening again. I'm skeptical, but figured I'd pass that info along if anyone wants to try it as well.
Click to expand...
Click to collapse
Not sure we have the same problem. My screen doesn't come on at all, I don't get a battery depleted icon, no matter how long I hold in the power button. The only sign of life I get is when it's plugged in, when it goes from orange to green after about 10 seconds.
Thanks for the help, but I think it's a lost cause.
YMMV. But mine was the same issue. You should be able to get the icon by holding the power button down for 5 or 6 seconds. I'd say just eff with it until that icon appears. Try different button combinations. I used power and home trying to get the icon to show.
developerbuzz said:
when it goes from orange to green after about 10 seconds.
Thanks for the help, but I think it's a lost cause.
Click to expand...
Click to collapse
Anyway... since people are continually running into this kind of issue...
Give or take 21 seconds after turning orange it turns green during actual boot cycle into rom
Give or take 10 seconds after turning orange is cwm internal recovery.
After about 10 seconds the charging screen image disappears.
The charging screen image once finally no longer may not show up again until full power off/on (holding power button > 10 seconds or full battery discharge). Unplugging and plugging back in does nothing except making the device look bricked if there's too much light shining on it.
Device may not automatically leave the above state under a specific situation(s). May still need manual full power off/on.
Guessing 10 seconds could also be something else during the early/late boot process or other. The light changing color though should indicate that something is indeed happening.
Light should stay green during the boot process if its completely and fully no questions asked 100%. If you go based on that than yours doesn't appear to be completely fully charged which should either mean its turning on and using battery or not charging correctly.
The light turning off is curious. The device could be shutting off. If light comes back on a moment later then the device has rebooted. if the light stays off = n/a.
If its booting into recovery then the device would be available via adb. At that point it could be further evaluated.
On the off chance the screen was damaged it should boot and usb should be available via computer as well as adb.
If not then its probably toast unless its simply not getting a good enough current causing mislead battery stats and/or not enough energy to get to charging screen (bad wall power adapter in use, damaged power cable - though could be bad battery, defect, damage or whatever). OR there's some major error on behalf of the user happening (think should have tried that in the morning not while 1/2 asleep or came home from long trip and forget how that works).
Maybe the only other things are the emmc brick bug, was left sitting in the sun or heat or ocean air or other physical damage/defect even to the power port as well.
Or maybe it was mad that you left it. Shouldn't have hurt its feelings you know. At least its not crying battery acid on you.
That should just about cover everything except for the things not mentioned. Since its your device, you decide what happened.
Its complicated so anyone see any improvements, clarifications, or mistakes? Please put it in a post.
Jsorren said:
when i plug it in the LED goes from orange to green and then off (or green to orange, i can't remember). The screen doesn't turn on at all.
Click to expand...
Click to collapse
Bumping this thread to make it aware that there is a real answer. I have been able to duplicate this problem and rather easily too.
The problem is indeed from bad power. The device isn't receiving the correct amount of power needed to charge and start from a fully discharged battery.
To safely* duplicate this you can use a usb extension that isn't fully connected to the nook power cable. You may need to fully connect it first then slowly disconnect/connect till the light turns green when it should actually be charging. It won't actually charge in this state, or if it is, its very little and the battery percentage will continue to drop.
Leave the cable as is and unplugged. After the tablet is fully discharged, connect the usb cable. The light will change through the modes and turn off. The device will not turn on.
There are probably other ways to cause the problem like for instance a portable usb battery that doesn't put out enough juice (not the orange kind). Etc.
* It didn't hurt mine, but not my fault if it breaks your device.
sandsofmyst said:
Bumping this thread to make it aware that there is a real answer. I have been able to duplicate this problem and rather easily too.
The problem is indeed from bad power. The device isn't receiving the correct amount of power needed to charge and start from a fully discharged battery.
To safely* duplicate this you can use a usb extension that isn't fully connected to the nook power cable. You may need to fully connect it first then slowly disconnect/connect till the light turns green when it should actually be charging. It won't actually charge in this state, or if it is, its very little and the battery percentage will continue to drop.
Leave the cable as is and unplugged. After the tablet is fully discharged, connect the usb cable. The light will change through the modes and turn off. The device will not turn on.
There are probably other ways to cause the problem like for instance a portable usb battery that doesn't put out enough juice (not the orange kind). Etc.
* It didn't hurt mine, but not my fault if it breaks your device.
Click to expand...
Click to collapse
I actually ended up fixing it yesterday!! I haven't touched it in about 3 months, and I was planning on just throwing it out getting rid of it some how. For the heck of it, I decided to plug it in, assuming that it was gonna go through the same process. But this time it went from green to amber, but it never went off. So I pressed the power button and the battery icon appeared. This was a really good sign. So I left plugged in for about 5 to 10 minutes then tried to power on.:fingers-crossed: As soon as I saw that '' Nook" boot up screen, my heart stopped. It booted up perfectly and I almost blew up from excitement :victory:. So I then flashed the stock firmware back onto it, so this would never happen again.
I guess the battery had to be completely depleted or just had to cool down. Idk but either way this was one heck of a miracle
So I recommend for anyone having this problem to just leave it off and don't mess with it. I wouldn't say for 3 months like I did but maybe test it each week or wait a month if you have good patience
Wow. Man, that's awesome! Glad you posted that update on it. Thought if you had posted an update it would be the opposite as in trashed it
Actually, I guess only you could answer if you had also moved/unplugged the power cable from the wall adapter or put it into a different wall adapter, etc. Thinking there could have been a difference there.
These modern day devices are so finicky, guess anything is possible. Like you say, maybe sitting without power is another answer.
From some experimentation I have etermined that your power adapter (that plugs into the outlet) is the issue. It does not like to be leaft plugged in indefinately. It will continually use power even when the nook is not plugged in.
Also, if you use a differnt adapter you will have the same problem unless it is also of the exact same voltage and amps.

TF701T suddenly turned off and won't turn on.

Hello,
I was using my tablet Transformer TF701T for the first time in a couple of months today. It had 5% battery or so, so the keyboard dock was also plugged into the wall charger and everything was fine.
Suddenly, during use, the tablet just went totally blank; not even the power LED is on (as it normally would be if the charger was plugged in).
The orange light is still on the keyboard dock, so that is charging. (In fact, after a few hours of being plugged in, the keyboard dock is now green)
I have tried holding down the power and volume down buttons for periods of time, but this has done nothing. I have tried plugging the charger into the base of the tablet where it docks. This did not make it light up either. (The charger has been plugged into the base of the charger all night but to no avail)
Any advice would be greatly appreciated.
Many thanks,
Tom.
Solution
I have the same problem here. I don't know yet if it is a physical problem or a software one.
Here is my explanation and test.
I think at a certain point, there is a ''bug'' and the screen goes black and doesn't turn back on. That said, the tablet is still on. If you manage to press power, unlock by sliding, and lower/raise the volume, you should hear the DING DING sound. If it works for you, it confirms my theory.
The only way I found to fix that problem is to let the battery reach 0%. It might takes 1 week maybe. After that, connect a charger and press power quickly, you will see the red battery indicating the charging of the tablet. From that point,,, I leave it charge 30-80% then power on again. It works fine until the next ''ceasure''.
I don't know if it is related to usage. Pressing power multiple time, or reaching a certain temperature or usage level.
I've also read solutions with putting 2 cables on the battery to short it. There are also applications that can be remote triggered to ''burn'' the battery and empty it faster. I regret I didn't bring that back. I'm also wondering if cianogen could fix that. No more updates or support coming soon, although if I saw a conference in singapore showing compatibility with the new kitkat os.
anyway good luck, I'll keep my researchs.
NofxMaster said:
If you manage to press power, unlock by sliding, and lower/raise the volume, you should hear the DING DING sound. If it works for you, it confirms my theory.
Click to expand...
Click to collapse
I'm afraid that did nothing. Hearing no response whatsoever!
I'll keep experimenting. I can't send it back to ASUS as I don't have the serial number.

Droid Turbo turns off automatically

Hi guys,
My phone turns off automatically. It actually has happened 4 -5 times in 3 days. Let me explain; Once my phone was just on my table and I picked up but it was off and nothing was happening. I just plugged in my wall charger (Turbo Power), it turned on and the charging showed 53℅ so it came back to life. Today, my phone was on charge and it was almost 70℅ andI had to remove the charger but as soon as I removed it, screen turned off and then I had to put the wall charger again to make it alive.
What could be the issue? I am confused.
Thanks!
Attached is an image of my battery stats for reference. Thanks!
82% wifi battery drain? Do you still have this problem if you keep wifi off? I would perform a factory reset if I were you.
TheSt33v said:
82% wifi battery drain? Do you still have this problem if you keep wifi off? I would perform a factory reset if I were you.
Click to expand...
Click to collapse
Yes, the issue is still there when I keep my WiFi off. Also, i noticed that my phone used to get charge from 5℅ to around 40℅ within 15 or 20 minutes. I did put my phone on charge few hours ago but in one hour it was only 53℅.
I use Turbo Power wall charger and I purchased this phone 2 weeks ago. I'm not sure if doing factory reset would work or not but first I want to make sure there is nothing else wrong with this.
Any thoughts?
sh_obaid said:
Yes, the issue is still there when I keep my WiFi off. Also, i noticed that my phone used to get charge from 5℅ to around 40℅ within 15 or 20 minutes. I did put my phone on charge few hours ago but in one hour it was only 53℅.
I use Turbo Power wall charger and I purchased this phone 2 weeks ago. I'm not sure if doing factory reset would work or not but first I want to make sure there is nothing else wrong with this.
Any thoughts?
Click to expand...
Click to collapse
If a factory reset doesn't fix it, my only other guess is that there is something wrong with the battery. If you purchased it new, it's very easy to get a warranty replacement through Motorola if you live in the USA, but I'm not sure how it would work outside of it.
I just posted in the "Weird Battery" thread. But you need to do a Battery Re-calibration by holding the power button to turn the phone and KEEP holding button until the phone re-boots itself. Ignore the "Power Off" dialog. Then plug in the stock turbo charger overnight. I had this problem a lot while using a wireless charger.
radon222 said:
I just posted in the "Weird Battery" thread. But you need to do a Battery Re-calibration by holding the power button to turn the phone and KEEP holding button until the phone re-boots itself. Ignore the "Power Off" dialog. Then plug in the stock turbo charger overnight. I had this problem a lot while using a wireless charger.
Click to expand...
Click to collapse
Thanks for the response and I will definitely try this. However, there is something I noticed: Today I plugged in my Turbo Charger and the phone started charging from 4%. After 45 minutes, it was 22%. I think that means it wasn't turbo charging and as soon as I plugged out the cable from my phone, it turned off and again I had to plug the cable in and it turned on and started charging. I then turned on my phone and the battery was at 22% (charging). After next 30 minutes it was at around 70% and then I tried to pull out the charging cable to see if it turns off again but it didn't.
I am not sure if it's right but I feel like when it doesn't get a turbo charge, it gets turned off when I remove the charging cable from it. But when it actually gets turbo charge, it doesn't turn off and act normally.
This is really confusing, isn't it?
No one?
The most likely problem is that your battery is failing due to age.
Although it appears to maintain a usable voltage, reflected in the battery % displayed, it can no longer provide the current needed to run the phone under high-load conditions. In those cases the voltage drops momentarily below the 0% level, triggering an immediate shutdown.
Try taking the back cover off the phone and seeing if the battery is significantly swollen or bloated. If so, it's time for a replacement. There are good video guides on YouTube detailing the process.
Your device is two years old, and all batteries wear out with enough charge/discharge cycles. If the phone is exposed to high temperatures (such as during turbo charging), the batteries will wear out faster.
Spott07 said:
The most likely problem is that your battery is failing due to age.
Although it appears to maintain a usable voltage, reflected in the battery % displayed, it can no longer provide the current needed to run the phone under high-load conditions. In those cases the voltage drops momentarily below the 0% level, triggering an immediate shutdown.
Try taking the back cover off the phone and seeing if the battery is significantly swollen or bloated. If so, it's time for a replacement. There are good video guides on YouTube detailing the process.
Your device is two years old, and all batteries wear out with enough charge/discharge cycles. If the phone is exposed to high temperatures (such as during turbo charging), the batteries will wear out faster.
Click to expand...
Click to collapse
Are you sure it can be a problem of battery? I purchased this phone in start of February and it's new. Also, if it's a battery problem then why does it happen just sometimes? Why not every time i plug in the charger? Also, my battery after full charge give me a handsome backup of 1 and a half day easily even after 81% use of a WiFi.
sh_obaid said:
Are you sure it can be a problem of battery? I purchased this phone in start of February and it's new. Also, if it's a battery problem then why does it happen just sometimes? Why not every time i plug in the charger? Also, my battery after full charge give me a handsome backup of 1 and a half day easily even after 81% use of a WiFi.
Click to expand...
Click to collapse
A weak battery is one possibility, but if you're getting a day and a half of usage from a full battery, then it's probably a different problem.
My next guess would be a bad charging cable or damaged USB port. Or possibly a poorly written app that's running in the background and causing memory problems somehow.
What Android version or ROM is on your phone, what background apps are running, and do you have any root programs or system modifications?
Spott07 said:
A weak battery is one possibility, but if you're getting a day and a half of usage from a full battery, then it's probably a different problem.
My next guess would be a bad charging cable or damaged USB port. Or possibly a poorly written app that's running in the background and causing memory problems somehow.
What Android version or ROM is on your phone, what background apps are running, and do you have any root programs or system modifications?
Click to expand...
Click to collapse
Thanks for the response. My Android version is 6.0.1 and in background I am not sure where to look at but the usual stuff I use are Facebook, Watsapp, MyCafe game (I have already tried uninstalling it to see if it's causing the problem). My device is not rooted and there are no modification. I am using this phone as I got it new. Thanks!
For few days it was working fine. Now, I was facing the same issue again so I tried to do a factory reset. Now when I tried to boot it up for the first time, I was setting up the Google Account, I didn't remember my password so I first changed it using my PC and then tried to sign in on my phone but now it's always saying "please sign in using one of the owners accounts for this device". I tried to google it but all of it ended up giving me a solution that I have to wait 72 hours because there has been some Google Security or something? I don't understand. Please help!
sounds to me like the battery is dying/dead. i would certainly open up an inquiry to motorola to see if they can get you a new battery. doesn't hurt to ask.
jco23 said:
sounds to me like the battery is dying/dead. i would certainly open up an inquiry to motorola to see if they can get you a new battery. doesn't hurt to ask.
Click to expand...
Click to collapse
I had to encrypt the device and it's back to life now. But still, the issue is still there. The phone still shuts down automatically as soon as I take off the charger. It's weird that when I don't face this problem, I get day and a half battery backup which is totally normal to me. Do you think it still can be a bad battery problem?
No one?
Are you using custom rom or stock one?
mubaidr said:
Are you using custom rom or stock one?
Click to expand...
Click to collapse
I am on Stock ROM.
It's never too late
sh_obaid said:
I am on Stock ROM.
Click to expand...
Click to collapse
Hi Sh-Obaid!
Although this is a pretty old post, but I have just faced the same problem with my droid turbo as you were facing exactly a year ago. I am pretty sure that you must have ditched the droid turbo by now, but still I am curious to know if you finally found out the actual problem or some solution. Please share your experience as it can help me to fix my paperweight (almost dyeing turbo).
It keeps turning off during boot-up or android running mode within a few minutes after the charger is removed. But, it can stay 'on' for several hours in recovery mode (due to which I doubt that battery is dyeing) and also shows Good Battery status in the boot-loader mode. I have done factory reset and even re-installation of the stock rom but neither worked for me.
Any input from you would be highly appreciated - Thanks!

Help! Battery drained, phone won't turn on, battery charging icon flashes on and off?

My phone had been working perfectly fine, as well as charging perfectly fine. Recently, I accidentally let it drop to 0%, which I don't usually do. I went to plug it into the same wall outlet as always, but instead of the usual charge process, the battery icon with the lightning bolt in the middle simply flashes on the screen and then turns off, which happens over and over again.
It should be noted as well that about 3 weeks ago my phone get fairly wet. After that incident, I turned it off till it dried, powered it up, and everything appeared to be totally ok.
Other facts:
-I can safely get into the recovery menu (power + vol down), which is stable, but any menu selections result in the Motorola splash screen for a quick second and then the phone powering down.
-The computer will recognize the connection to the phone.
Attempts to resolve:
-New cable, new usb hub, new wall outlet
-Trickle charge from the computer (same flashing)
-Phone in rice to remove moisture
-Toothbrush cleaning of Micro-usb port (suggestion from another thread)
I'm pulling my hair out, and I am considering prying off the back and replacing the battery. I have searched other threads, but have seen various solutions none of which worked for me. If anybody has any idea how I can fix this please help!!! Thanks in advance.
DroidGuy321 said:
My phone had been working perfectly fine, as well as charging perfectly fine. Recently, I accidentally let it drop to 0%, which I don't usually do. I went to plug it into the same wall outlet as always, but instead of the usual charge process, the battery icon with the lightning bolt in the middle simply flashes on the screen and then turns off, which happens over and over again.
It should be noted as well that about 3 weeks ago my phone get fairly wet. After that incident, I turned it off till it dried, powered it up, and everything appeared to be totally ok.
Other facts:
-I can safely get into the recovery menu (power + vol down), which is stable, but any menu selections result in the Motorola splash screen for a quick second and then the phone powering down.
-The computer will recognize the connection to the phone.
Attempts to resolve:
-New cable, new usb hub, new wall outlet
-Trickle charge from the computer (same flashing)
-Phone in rice to remove moisture
-Toothbrush cleaning of Micro-usb port (suggestion from another thread)
I'm pulling my hair out, and I am considering prying off the back and replacing the battery. I have searched other threads, but have seen various solutions none of which worked for me. If anybody has any idea how I can fix this please help!!! Thanks in advance.
Click to expand...
Click to collapse
Either there is something wrong with your battery, or there is something wrong with the USB port. If the USB port is the problem, you can use wireless charging instead. I'm a fan of this one, personally: https://www.amazon.com/gp/product/B00S7IBDGW/ref=oh_aui_search_detailpage?ie=UTF8&psc=1.
Also, are you unlocked? If so, what battery percentage does TWRP say?
TheSt33v said:
Either there is something wrong with your battery, or there is something wrong with the USB port. If the USB port is the problem, you can use wireless charging instead. I'm a fan of this one, personally:
Also, are you unlocked? If so, what battery percentage does TWRP say?
Click to expand...
Click to collapse
Thanks for the quick reply. It does seem like a battery problem, however it is just so coincidental that it stopped working after I let the battery drain to 0%, when only hours previously it was in use and charging without any issue at all.
Also, if there was a problem with the micro-usb port, I would think that a computer wouldnt be able to read the phone, but when I plug it in it is recognized as an ADB device.
I have another turbo with a cracked screen, I'm thinking about dissecting both and putting that battery in this phone as a replacement.
And unfortunately I am not unlocked :/.
Update
Well, after some further experimentation, I've gotten it working again. The solution was to charge it for like 5 hours, then let it sit off charge for an hour, and then it would boot... bizarre combination of actions. It has since dies twice and I've had to use this method.
It is working for now if I don't let the battery drop below like 15%. Seems more like a software or hardware issue to me, and i'm still trying to resolve it, so if anybody has any suggestions please let me know.
Also, what is the best way to re-calibrate the battery, maybe that could help?
DroidGuy321 said:
It is working for now if I don't let the battery drop below like 15%. Seems more like a software or hardware issue to me, and i'm still trying to resolve it, so if anybody has any suggestions please let me know.
Also, what is the best way to re-calibrate the battery, maybe that could help?
Click to expand...
Click to collapse
If you can't let the battery go below a certain percentage, it might be an early sign of failure. The voltage might drop suddenly and unexpectedly towards the end of discharge, prompting the phone to emergency-shutdown.
As for calibrating the battery...it depends on who you ask. I would say that running it to shutdown (even if shutdown is "15%") and then charging it to 100% should do it, since that gives the controller a full set of data with which to extrapolate a discharge curve. Clear your cache in recovery, so hopefully the OS will pick up on this to accurately track the battery's actual state.
Get Kernel Adiutor or something similar to check your battery's health, too. If there's something obviously badly wrong, it should report something other than "Good".
If you note when your battery dies abruptly and you immediately reboot the back light is very poor. Almost flickering.
I think this is a battery issue of not being able to feed enough amperage.
...however. My phone was doing this and after a full clean reflash it has stopped. I question if this is because I am running less apps now. Or if perhaps somehow the battery managed to lose its memory. (Li ion is an odd duck..)
mrkhigh said:
If you note when your battery dies abruptly and you immediately reboot the back light is very poor. Almost flickering.
I think this is a battery issue of not being able to feed enough amperage.
...however. My phone was doing this and after a full clean reflash it has stopped. I question if this is because I am running less apps now. Or if perhaps somehow the battery managed to lose its memory. (Li ion is an odd duck..)
Click to expand...
Click to collapse
Septfox said:
If you can't let the battery go below a certain percentage, it might be an early sign of failure. The voltage might drop suddenly and unexpectedly towards the end of discharge, prompting the phone to emergency-shutdown.
As for calibrating the battery...it depends on who you ask. I would say that running it to shutdown (even if shutdown is "15%") and then charging it to 100% should do it, since that gives the controller a full set of data with which to extrapolate a discharge curve. Clear your cache in recovery, so hopefully the OS will pick up on this to accurately track the battery's actual state.
Get Kernel Adiutor or something similar to check your battery's health, too. If there's something obviously badly wrong, it should report something other than "Good".
Click to expand...
Click to collapse
Thanks for the pointers. So strange, first it died at 40%, then 30% then 15%. Now, it is still dying early but I am no longer facing the issue I originally had, it will show normal charging when off, and boots up right away. Sure hope its not some ticking battery time bomb, its still a relatively new refurb.
I attempted the charge calibration so we shall see if it helps. I also did a factory reset for the hell of it, since I am on stock and can't reflash. Perhaps I'm in the clear, that would be awesome. Still no idea what the issue was in the first place though, which will annoy me to no end.

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