Started last night. Phone would just shut down all by itself. Thought the battery was dead so I tried to charge it. No LED showing charging. Took the battery in and out several times till I finally got it to boot. Battery showed about 70% or so. Used it for a while, then BAM, shut off again. Placed on the charge got an LED this time, red. Wake up this morning and try to boot the phone. LED is green and looking good.
Worked most of the morning, then it was dead when I took it out of my pocket. So I go and get a new battery for it. Does the same damn thing. I am running CM 5.0 or so on it. Tried charging both USB cable way and direct to the wall.
Now I have used recovery screen, right when I go to wipe it dies out.
Will only boot if I take the battery in and out several times and finally will get G1 screen. Sometimes it will reboot itself, other times the screen just fades away.
And Ideas?
BTW, nothing happened to it recently. But it did get wet about 8-9 months ago. I stuck in a ceiling fan to dry it out for 2 days. Has worked perfect since that day until last night.
Update:
I was able to flash Zdonut 2.5, get to the sign in screen, goes black and reboot
New battery fully charged.
I even tried an old back up with same symptoms.
svtcontour said:
Started last night. Phone would just shut down all by itself. Thought the battery was dead so I tried to charge it. No LED showing charging. Took the battery in and out several times till I finally got it to boot. Battery showed about 70% or so. Used it for a while, then BAM, shut off again. Placed on the charge got an LED this time, red. Wake up this morning and try to boot the phone. LED is green and looking good.
Worked most of the morning, then it was dead when I took it out of my pocket. So I go and get a new battery for it. Does the same damn thing. I am running CM 5.0 or so on it. Tried charging both USB cable way and direct to the wall.
Now I have used recovery screen, right when I go to wipe it dies out.
Will only boot if I take the battery in and out several times and finally will get G1 screen. Sometimes it will reboot itself, other times the screen just fades away.
And Ideas?
BTW, nothing happened to it recently. But it did get wet about 8-9 months ago. I stuck in a ceiling fan to dry it out for 2 days. Has worked perfect since that day until last night.
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I have got the same symptoms, my screen fades out and the only thing I can do to power it up again is to remove the power plug and the battery.
Nothing brutal has happened to it, it started after I installed CM5-test1 on it but I have no idea if it's related or not.
Now it's living less and less time, I'm able to boot to recovery but usually not to boot into my OS (tried to reflash superD).
I think I need to get it to warranty, but for that I would like to restore my Orange Rom, but I'm afraid to do so as I have the newest radio, the haykuro SPL and a phone that may power off at any moment...
HELP,
yesterday, I was using my nexus 7 for normal use, wasn't playing game, just browsing with chrome. the battery was 8 percent when I last saw it. I then proceed to charge it, but the thing suddenly just shut down itself. I thought I misread the battery percentage, so I charge it anyway. about an hour later, i checked on my nexus 7, turn it on, got to the boot screen, got to the home screen, use it for about 15 minutes, and suddenly, the screen black out, it was flickering like crazy, and making some white noise ish sound. I panicked so I hold down the power button and turn it off. I turn it on again, and after about 30 seconds, the same thing happened again. I was using motley's kernel with 520 GPU, and I thought, maybe my nexus 7 cant handle the GPU OC. So I went to recovery, tried playing with recovery for about a minute or so, but the screen didn't flicker at all on the recovery. So I flashed the 484 GPU version of motley's kernel. When I reboot to system, the same thing happened again. So I thought, maybe if I restore to my old backup, it would not be like this any more. so I wipe the data, dalvik, and cache, and I restore my old backup. But the same thing happened again, only this time, after I turn it off, it make a high pitched sound.
I waited for about 6 hours, and now when I turn my nexus 7 on again, it works normally.
So, what has happened to my nexus 7?
bump
I'd say it is the overclock. Graphic cards do some weird stuff when overclocked. You can burn up your GPU doing that and cause it to forever freak out. I always shied away from GPU overclocks.
Sent from my Nexus 7 using xda premium
would that cause any permanent damage?
keni.mardira said:
would that cause any permanent damage?
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It should be ok if you reflash back to stock rom to make all the hardware back to reset mode. A warning always given when we try to flash rom with oc created.
i also experienced this one, also received a battery warning and then suddenly screen went blank. then same weird thing happened as the one above. I'm on paranoid android rom and i'm quite sure it's not overclocked or something. Was only able to get back to normal by holding the power button for around 15-20 seconds...
Happens to me
This will happen to me a lot when my nexus 7s battery dies, I plug the tablet in and then immediately try to start it up. It will work for around 30 seconds then look like an old TV without a signal. I am on stock everything, no rooting or custom Roms (yet). I always thought it had something to do with battery calibration being off and the tablet not having enough power to run, because it always works fine when I charge it before attempting to boot.
I have also noticed that every once in a while the screen will have a vertical line of pixels flicker.
Same thing happened to me yesterday...
I got the "low battery" warning and after some time the screen started flickering in many colors and there was a weird static noise.
I pushed the on/off button, but it wouldn't turn on again. After a few minutes of charging, I could turn it on again.
This isn't normal behaviour, is it? Shouldn't the N7 perform a regular shut-down when the battery has no juice left?
I'm on the rooted stock rom btw.
androidswagz said:
This will happen to me a lot when my nexus 7s battery dies, I plug the tablet in and then immediately try to start it up. It will work for around 30 seconds then look like an old TV without a signal. I am on stock everything, no rooting or custom Roms (yet). I always thought it had something to do with battery calibration being off and the tablet not having enough power to run, because it always works fine when I charge it before attempting to boot.
I have also noticed that every once in a while the screen will have a vertical line of pixels flicker.
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+1 bro. I am having the same problem. what do we need to do ? it is same with all nexus 7's . should we claim the warranty or just neglect it ? wat say ?
Aditya88 said:
+1 bro. I am having the same problem. what do we need to do ? it is same with all nexus 7's . should we claim the warranty or just neglect it ? wat say ?
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I faced the same problem. I dont know when the battery might have drained out, but on starting the tab on low battery, it suddenly started showing black screen with little grains and suddenly stopped with a noise. I charged, started the tab again while charging, and the battery reading stuck at 21% even after charging for 20 mins. Within 5 mins, it happened again. Now after 35 mins of charging, I start it again, it boots normal, and now its reading the battery percentage in an incremental value (started with 22%) and now its again stuck at 23%
Is this a HW related issue? Or do you think it is more of SW related issue? If it is more towards the HW side, we better have it replaced. Mine is C70 model.
bump
just happened to me... it may have run out of juice... didn't turn on when I tried, so I guess it did... then I put it on the charger, tried booting it, went away for a sec and when I came back I also got this black screen with some flicker and a static noise...
will now try to charge it over night before trying again...
Nexus 7/Google problems
I received my Nexus 7 on Aug 21 after hearing the rave reviews. It didn't come with app for a camera, so I downloaded one.
The camera didn't work. I re-booted it & it worked this time. Downloaded Skype - whole reason for getting the tablet - to stay in touch with family that is far away. Tried to Skype - camera wouldn't work. Rebooted - worked this time again (getting tired of having to reboot for something I want to use to work). On Sept 2, sent message to Google inquiring about camera & app I downloaded. Only response - "thank you for contacting...blah, blah, blah - check out Q&A." All along, the tablet would shut itself down & reboot randomly (battery fully charged sometimes). On Sept 13, I shut it down & charged it. After a full charge, I tried to power it back on. Tried again several times that night & then the next morning. Called Google (who I bought it from). Told them I didn't want a piece of junk that wouldn't work. He told me it was past my remorse period. (The only remorse I have is buying their piece of crap instead of a reputable one.) I finally did get it to come back on, but camera hasn’t work since even after a complete factory reset. Any way – in order to get this one fixed, I have to “buy” a new one, then send back the old one & be reimbursed. Is this a legitimate business practice?
hi,
since today i have the same issue. did nothing special, just swichting from g currents to chrome. stock rom, no modifications, not rooted, everything original
n7 suddenly had a black screen(battery was at 28%). nothing worked, no powerswitch(10-30 secs). when connected to original power supply and cable, it boots up.. google logo .. glowing X.. lockscreen. then, approx. 30 sec later it turns off again(screen black). usb cable still connected. after some time it comes up again.. and repeats the procedure. after some cycles it stops, and when i reconnect the usb calbe it starts over again. sometimes, before it turns black, it shows a flickering screen and sometimes fizzling sound.
any suggestions?
I had this same issue right after the 4.2 ota update, after leaving it on charge overnight it seems fine now after a couple of discharge / charge cycles
Its like after the update it was over estimating the battery level
Sent from my Nexus 7 using xda premium
Same thing!
I have a completely stock Nexus 7, and the EXACT same problems are happening to me too! The first couple of times it happened my tablet would reboot normaly. But now, my tablet won't boot up at all. Any suggestions on what I should do? Also, remember, I have no mods installed.
Happening to me too.My N7 shut itself down because of low battery a couple hours ago and I haven't been able to get it to boot since. When I plug it into the charger it shows a flickering screen like a tv with no signal but with less white flickers. I've tried multiple chargers and cables but I could only get it to boot up a couple times and both times it did not show that it was charging even though it was plugged in and the battery was at 0% so as soon as it boots up it shuts itself down again because of low battery.
So now I've got it on the charger, screen all a'flicker, waiting for it to get a charge but I've got a feeling its not even charging because, like I said, the few times it has booted it showed the battery at 0% and not charging.
I guess I'll try to leave it alone for a while and see if it will start up after being plugged in for a bit.
EDIT: I let it sit there and charge for about an hour or so (with the screen flickering) and I was finally able to get it booted. It said it only had 3% battery but now it seems to be charging as fast as usual.
devhen said:
EDIT: I let it sit there and charge for about an hour or so (with the screen flickering) and I was finally able to get it booted. It said it only had 3% battery but now it seems to be charging as fast as usual.
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Yup... I've let mine sit there turned off and charging over night... helped!
Just had a problem with the Nexus 7 not charging when battery was likely fully depleted. Putting a charge cable in was automatically booting the Nexus 7 up and wouldn't charge shutting down right after. Loops going on and off. What I did was plug a charge cable in and hold power+both volumes and now I believe I am charging at the bootloader screen. It stays on so I will leave it like this and if it doesn't resolve the issue I will try recovery once it is charged.
I've just started having the same issue. Has happened twice when battery gets to 8%, suddenly jumps to 0, shuts down, then after a few seconds restarts itself. Gets to home screen for a few seconds, battery showing 8, then jumps to zero, switches off and has flickering blocks on screen with static noise. This keeps repeating, only way I have found to solve it is to load into bootloader, then select power off. Device charges normally then and once charged works fine. I am unlocked and rooted but running stock 4.2.1, think I'll just have to return it for a warranty claim.
Based on what you experienced, the lesson here is your device can't handle the GPU over clock of more than 446mhz or it will do some crazy stuff.
Sent from my Nexus 7 using xda app-developers app
Hi,
was watching Youtube on my phone (GT-I9505 with GPE ROM by yesterday. Suddenly the screen froze up, while the audio was still playing. Nothing helped so I pulled out the battery and restarted. After that everything was ok. However this morning my phone was dead. So I force restarted again, however it won't start. The Galaxy Logo comes up for a split second and then the screen goes black again. I can't even boot into Recovery Mode. I can only get to Download Mode. Has anyone an idea what to do???
Charge the battery probably a good idea.
When did you install the rom?
Sent from my ZTE Kis 3 using XDA Free mobile app
Oh man, it was indeed the battery. Even though I plugged it in last night it apparently didn't charge. However, since the phone didn't die right away when in Download Mode I didn't make the connection of it being the battery. Feeling like a total noob, lol. Thanks everybody.
Heres the entire story, I woke up my Zte was at 100% so I went to school and it was working fine until I took it out of my pocket and noticed it fully shut down so I booted it up and went on, the same thing happend like 6 times through out the day until I started to uninstall some apps I had that might have been causing issues, which it wasn't fixed by that, so I got Malabytes Anti-Malware and ran a scan and no viruses, which I uninstalled after using. Then at around 2:00PM I was on my Zte it had 40% battery left while I just booted it up for like the 10th time and it loaded and once it started I was looking on the home screen and it randomly froze for the first time and it had like a glitched thin line thru the bottom side of the screen going left to right, I stared at it for a bit looking like what is going on, then it shut off and it was a abnormal shut down, the screen went black and turned off as apposed to a normal shut down it will run some text on screen saying "Shutting Down" the vibrates which that didn't happen. So I was like this was probably what it was doing in my pocket so I tried to boot it back up and it was unresponsive and it turned off with 40% so I know it wasn't out of battery. For the next 10 min I kept trying to turn it on and it didn't work so I was like I will let it rest. So 40 mins later I tried it and it went to the Zte boot screen but never booted up it was stuck there I couldn't even turn it off with the Power off or Volume + Power buttons combo, and yes the power and volume buttons worked prior to this. So I was like well this is weird I will let the battery die then charge it then boot it. So it died then I plugged it in the wall with all original charging stuff, I woke up next morning and I tried it and it vibrated and it has nothing on screen and a Red Led and it has been like that since, the battery is gonna take a lot longer to die hence it has nothing on screen it is just black with a red led. I love this phone to death it has kept me from being bored in school and now i'm back 2 being bored. I particularly want to fix this my self and not have to send it somewhere for repair and I would also like to save the data on it as well if possible but if not I would still rather have a phone.
HELP ME EXPERTS! Thank You! :laugh: :good:
These phones don't age well unfortunately. Don't feel bad it's not your fault. RMA if you somehow still have warranty. If not I'm sorry but your screwed, most likely the emmc chip went mad and there's no repairing that for an axon 7. I know, they're nice while they last.
You run stock firmware?if yes,you always be on stock?