Nexus 7 2012 wi fi big problem - Nexus 7 Q&A, Help & Troubleshooting

I have problem with this device its shutdown on 70% battery and show 0% when i put in wall charger show 70% and charge. Help some one please .soory for bad english
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leos0000 said:
I have problem with this device its shutdown on 70% battery and show 0% when i put in wall charger show 70% and charge. Help some one please .soory for bad english
Sent from my Nexus 7 using XDA Free mobile app
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First thing to check is to pop the back off and make sure your battery is fully plugged-in and seated firmly.

PrizmaticSmoke said:
First thing to check is to pop the back off and make sure your battery is fully plugged-in and seated firmly.
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What do u mean
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leos0000 said:
What do u mean
Sent from my Nexus 7 using XDA Free mobile app
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Remove the cover from the back of the device, and make sure the battery is plugged in firmly. A loose connection can cause these symptoms (this happened to me in the past).
This guide will show you how to remove the back cover, and has nice pics of the battery plug. https://www.ifixit.com/Guide/Nexus+7+Battery+Replacement/9895
You don't actually need a specific tool, you can just use your fingernails (if they are long enough) or any small, thin object to help pry it open. It's easy, just take your time and don't force it, don't want to break anything

PrizmaticSmoke said:
Remove the cover from the back of the device, and make sure the battery is plugged in firmly. A loose connection can cause these symptoms (this happened to me in the past).
This guide will show you how to remove the back cover, and has nice pics of the battery plug. https://www.ifixit.com/Guide/Nexus+7+Battery+Replacement/9895
You don't actually need a specific tool, you can just use your fingernails (if they are long enough) or any small, thin object to help pry it open. It's easy, just take your time and don't force it, don't want to break anything
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Dont help this is what i can do?
Sent from my Nexus 7 using XDA Free mobile app

Did you make any changes to the device before this happened (new ROM, kernel, etc.)?
If not it's likely a hardware issue.

PrizmaticSmoke said:
Did you make any changes to the device before this happened (new ROM, kernel, etc.)?
If not it's likely a hardware issue.
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I dont know i got from ebay
Sent from my Nexus 7 using XDA Free mobile app

Well, that might be why it was sold on ebay in the first place, or it may have been damaged in shipping. You should check out swappa.com for used tablets next time, I've had great experiences with sellers there.
You can always try a factory reset, or using a battery calibration app, or installing a custom ROM/kernel, and see if there's any changes.
It also may just need a new battery, though that involves spending more money just to test the theory. It may be worth a shot though.
That's all I've got, if none of the above resolves the issue, it's likely just a defect with the device.
Good luck.

PrizmaticSmoke said:
Well, that might be why it was sold on ebay in the first place, or it may have been damaged in shipping. You should check out swappa.com for used tablets next time, I've had great experiences with sellers there.
You can always try a factory reset, or using a battery calibration app, or installing a custom ROM/kernel, and see if there's any changes.
It also may just need a new battery, though that involves spending more money just to test the theory. It may be worth a shot though.
That's all I've got, if none of the above resolves the issue, it's likely just a defect with the device.
Good luck.
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Thanks alot bro)) and yes i flashing to much roms from here nothing hepen.but can u give me link for nice fust good rom like 4.3 or 4.4. Not for 4.4.4
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Related

Phone power shuts off when tapped or bumped.

I just noticed a moment ago that when I tap my phone hard enough it turns off. For example sliding the kb open or setting it down on a table hard enough. I have to be real gentle with it now. And I have never been very rough with it its in great condition. I dropped it once on carpet a few months ago. But that's it. I have 2 batteries and I switch them out every other day. Could that have something to do with it? I really do not want to goto the sprint store and have the look at it because ill have to flash back to stock and deal with their lines and annoying staff. Anyone know what I can do to fix this issue?
Sent from my SPH-D700 using XDA App
Is it possible that you thumped it hard enough to knock it unconscious? Just kidding, sounds like you have a short somewhere.
Sent from my SPH-D700 using XDA Premium App
screw that. flash it back to stock and take it in. i wouldnt be able to deal with that.
^^ I agree
However, take a look at your battery contacts. One of my 3 is noticeably bent "differently" but not necessarily broken than the other 2 (although it's NEVER lost contact even in a fall). Maybe it's not maintaining the tension it needs to keep the connection.
kycrop44 said:
I just noticed a moment ago that when I tap my phone hard enough it turns off. For example sliding the kb open or setting it down on a table hard enough. I have to be real gentle with it now. And I have never been very rough with it its in great condition. I dropped it once on carpet a few months ago. But that's it. I have 2 batteries and I switch them out every other day. Could that have something to do with it? I really do not want to goto the sprint store and have the look at it because ill have to flash back to stock and deal with their lines and annoying staff. Anyone know what I can do to fix this issue?
Sent from my SPH-D700 using XDA App
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Happens to me when I close the keyboard too hard so I put a piece of thin cardboard between the cover and battery to secure it even more and no more problem.
kennyglass123 said:
Happens to me when I close the keyboard too hard so I put a piece of thin cardboard between the cover and battery to secure it even more and no more problem.
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doesnt paper heat up the battery more? and i think the OP should place a claim on the phone (you should too). you people paid a lot for your phone and it should work (without putting cardboard)
alexnaoumi said:
doesnt paper heat up the battery more? and i think the OP should place a claim on the phone (you should too). you people paid a lot for your phone and it should work (without putting cardboard)
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your right I did pay alot for this phone and it should work properly without ghetto rigging it. It actually stopped for now idk what did it, I tried a number of things including pressing the battery in harder and that may of solved it, but I bet it does it again one day. plus I wouldnt mind having a brand new one if thats what they would do to fix it lol
That happened to me a couple times, but it was the extended batteries and thus generic cover that doesn't fit well to begin with.
alexnaoumi said:
doesnt paper heat up the battery more? and i think the OP should place a claim on the phone (you should too). you people paid a lot for your phone and it should work (without putting cardboard)
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Then don't cover the whole battery. Use a small strip runnin diagionaly and fasten it to back cover is it don't move around when u drop your phone again.
Try a little peice of paper in between the batt and the wall of batt hole.
Epoxy your battery in place.
Or u can stop abusing your phone.
Tell your phone your sorry..
Sent from my SPH-D700 using XDA App
alexnaoumi said:
doesnt paper heat up the battery more? and i think the OP should place a claim on the phone (you should too). you people paid a lot for your phone and it should work (without putting cardboard)
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Not anymore than sitting on my hip. Paper is an insulator so actually would help in Florida sun. But my issue is a $21 extended battery and extended back, not stock. So a small piece of cardboard helps to keep it really tight. Also probably because I have dropped my phone a few times.
keith5039756827 said:
Then don't cover the whole battery. Use a small strip runnin diagionaly and fasten it to back cover is it don't move around when u drop your phone again.
Try a little peice of paper in between the batt and the wall of batt hole.
Epoxy your battery in place.
Or u can stop abusing your phone.
Tell your phone your sorry..
Sent from my SPH-D700 using XDA App
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LMAO!!!! Nice...think I will download a flowers jpg for my phone now.
My first epic did this. It's a manufacturing problem. I took it back and sprint replaced it. (I returned it the day after I bought it, though).
I have had this happen to me and all I did was flash a different rom. It seemed to be a had flash or the rom I was using. That is assuming you are rooted and running a custom rom. Give it a try. Flash something else and see if the problem goes away. Mine did.
I was on my way into the sprint store as I was restoring a different rom and after restoring i could not reproduce the power down when bumping or sliding keyboard. That's how I figured out it had to be the rom. I have not had it happen since, that was 5 months ago.
desire s turns off
Ive had my desire s for less than 2 months and ive had to leave it back for this reason. The slightest of taps to the bottom right corner and off it goes.
Estimated return time from the car phone warehouse is 1 month. whahahahah....
Mine does the same thing, bougt mine off ebay, esy fix I just took a very small piece of electrical tape, made it so its sticky on both sides and stuc it behind the battery
Sent from my SPH-D700 using XDA App
I had this problem also. Mine was one of the three contacta on the phone broke. The brass contacts that touch the battery.
Sent from my SPH-D700 using XDA App
kennyglass123 said:
But my issue is a $21 extended battery and extended back, not stock
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Same here! With the stock battery it works fine, but with the extended to hard of a jolt will reset it.

G2 randomly turning off?

My sisters g2 is randomly shutting off whenever it wants to its unrooted and I believe has the gb update should I try a new battery? Any suggestions are appreciated
Sent from my Nexus S 4G using XDA App
Just switching off completely ? Could be a loose battery, try a slip of paper at the other end of the battery from the contacts, to see if that helps.
Is the battery an OEM (HTC) one ?
Sent from my Desire Z running CM7.
steviewevie said:
Just switching off completely ? Could be a loose battery, try a slip of paper at the other end of the battery from the contacts, to see if that helps.
Is the battery an OEM (HTC) one ?
Sent from my Desire Z running CM7.
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I'll try that and yes its the original OEM battery thanks
Sent from my Nexus S 4G using XDA App
If you figure it out, let us know. My g2 does it once in a while, with 2 different batteries. I'd like to know too.
Mine (DZ) does too, now and again. I'm kind of resigned to it since the phone 18mths old now, and even if I sent it for warranty repair (2yrs cover in the EU) they'd wipe it and probably load some unrootable sh*tbag of a ROM on it.
I intend on replacing it when something better (with a qwerty) materialises, but that day hasn't come yet. In the meantime it would be nice to know what's causing my shutdowns - it's not software because it happens with any ROM I put on it. Is there any way to log and interpret hardware events like shutdowns?
I have the same problems!
I had the same problem, I've searched for ever and finally find why.
Mine was cause by a electric shortcut between the metal battery cover AND the ebay battery. Yes, under the brand sticker on the battery, there's some aluminum or something that can make a shortcut.
I just warped it in a cellophane plastic (leaving the 4 connections free, duh)
Any way, I dont want to be pessimist, but pretty sure thats not your problem...
Mine did that too back then. How I fixed it was, I had to calibrate the battery. But I did mine the rooted way, by using an app called batter calibrator by nema, it's on the market somewhere. But I think there's a way to calibrate the battery without root.

[Q] Nexus 7 Won't turn on!

Hello, today I dropped my nexus seven from very low and when I picked it up it wouldn't turn on so what I did is went and charged it and the backlight turned on but no charging image or anything whatsoever was appearing so then I tried holding the power button and it just made it go all crackily like a TV the Nexus has no cracks on the screen but just won't turn on, please help if you know how I could fix this please let me know
Try taking off the back cover, more then likely its your battery cable is loose. Happened to me once before
Sent from my Nexus 7 using xda app-developers app
Thanks mate that fixed it all I had to do was pry open back and then push down the connector and then babam it was fixed
Turns out it didn't work
So I opened back and pushed it in (It was already in very tight) and then I put case back on and nothing if I go to charge it it just puts on the backlight or flashes :/
Never had it persist like that. Try taking the ribbon off the connector a few minuets, while doing so check the male and female connections and see if nothing is bent/broken, if all looks fine plug it back in.
Off all fails, it might be the display ribbon loose, but I can't really tell you where it is or even if its a good idea to try to mess with it. Look up some videos on YouTube and see if the job would be easy for you. If not, you might have to send it out to get fixed. Idk what they do with rooted ones, maybe someone can shed some light on that topic.
Sent from my Nexus 7 using xda app-developers app
creep138 said:
Never had it persist like that. Try taking the ribbon off the connector a few minuets, while doing so check the male and female connections and see if nothing is bent/broken, if all looks fine plug it back in.
Off all fails, it might be the display ribbon loose, but I can't really tell you where it is or even if its a good idea to try to mess with it. Look up some videos on YouTube and see if the job would be easy for you. If not, you might have to send it out to get fixed. Idk what they do with rooted ones, maybe someone can shed some light on that topic.
Sent from my Nexus 7 using xda app-developers app
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Just so others with this problem can be aware from the start that this is a known issue, with a known fix, we have a sticky in this forum right here, or just look at the listings on the top of the forum. Hope this helps.
Thanks for the help guys but the problem is still here I will probably be sending back to Google this week, how long do you think it will take + I have warranty will I have to pay?
billykxda said:
Just so others with this problem can be aware from the start that this is a known issue, with a known fix, we have a sticky in this forum right here, or just look at the listings on the top of the forum. Hope this helps.
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Haha, ill keep the link copied at all times or direct a Google search next time.
Polo2673 said:
Thanks for the help guys but the problem is still here I will probably be sending back to Google this week, how long do you think it will take + I have warranty will I have to pay?
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Can take 2-3 weeks.
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[Q] Phone issues galore

Hey, I know this is by far the most stupid thing I've done in a long time, so please don't point it out to me, but I traded my Galaxy S4 + cash for a G2. I checked out the phone for a bit to make sure it was fine, and so far it only has 2 issues, one of which I can fix.
1. The phone is an in-store demo unit, it keeps playing through Verizon's demo software, which I don't mind, I can fix that.
2. The phone's battery is dying, as in it's max charge yesterday was 37%, today it's 35%.
Now, I hate to ask this because I feel like a total derp, but is there anything I can do about the battery (I know it's internal, but is it able to be repaired)?
It isn't molded plastic so you can definitely change it. Haven't seen any threads on it yet though. As for point 1, try to get into factory reset mode and do that.
Sent from my Nexus 7 using Tapatalk 2
From what I heard and read the back cover is simple to remove. Just put your nails into the small gap between the silver band and the cover and move it along the edges, I'm sure the cover should come off. The battery should be accessible, not sure if you need to unglue it or solder it off, which shouldn't be a difficult task. Then search eBay for a battery replacement which shouldn't be hard to find just search for the Korean model of the LG G2.
Sent from my LG-D801 using xda app-developers app
shook187 said:
From what I heard and read the back cover is simple to remove. Just put your nails into the small gap between the silver band and the cover and move it along the edges, I'm sure the cover should come off. The battery should be accessible, not sure if you need to unglue it or solder it off, which shouldn't be a difficult task. Then search eBay for a battery replacement which shouldn't be hard to find just search for the Korean model of the LG G2.
Sent from my LG-D801 using xda app-developers app
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The Korean model has a 2600mah battery, while the other models have 3000mah. It's not the same battery, it might not even fit.
Do you have insurance on the line? If so just have it replaced.
Sent from my VS980 4G using XDA Premium 4 mobile app
no insurance
I don't have insurance, but if I did, would it even cover my phone that has been swapped?
Edit: Also I contacted the seller and he said that the phone "requires" a special charger, which I know it says it's not the correct charger when I plug it in, but I don't think it "requires" the LG one, but I could be wrong I suppose, I am using a 2.0A charger from my old Note II
Have you tried to just do a factory reset on it to solve the issues??
turnturn1225 said:
Hey, I know this is by far the most stupid thing I've done in a long time, so please don't point it out to me, but I traded my Galaxy S4 + cash for a G2. I checked out the phone for a bit to make sure it was fine, and so far it only has 2 issues, one of which I can fix.
1. The phone is an in-store demo unit, it keeps playing through Verizon's demo software, which I don't mind, I can fix that.
2. The phone's battery is dying, as in it's max charge yesterday was 37%, today it's 35%.
Now, I hate to ask this because I feel like a total derp, but is there anything I can do about the battery (I know it's internal, but is it able to be repaired)?
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Is 'go to the police' an option?
WheresTrent said:
Is 'go to the police' an option?
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Why would a store be selling off a demo phone of the latest model. Sounds very fishy.
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[Q] replaced screen on xt912, wont power on

yeah its a first time question for me and I'm sorry if it has been covered, I did try to find it. So i replacdd a display on the the deivce and it will not power on or give any sign of life. I checked with my meter and its got roughly 3.5 volts which is good enough to power. any one have an experience with this and know the correct method of getting it to power on? tried volume down and power for ten seconds didnt work. I've got it on the oem charger now even though it has a charge.
Wrong forum... But maybe your digitizer isn't plugged in correctly? Our the digitizer was crack in the process of replacing it
Sent from my XT907 using xda app-developers app
Yea, I have replaced several on the xt910/912 may be an issue with the install check the ribbons for tears... ensure that there both seated correctly.. replace the metal cover over the connectors... did you replace the full housing or just the digitizer/ screen? Or Item may be defective... when plugged in you should still see the led flash green if all is well with the battery ( the ones I have done did)...
Sent from my XT907 using xda app-developers app
re: answers
yes, i should have seen some sign of life is what i was thinking as well. i replaced the whole bezel. no flash no green light and no idea. I do apologize for wrong forumn.only thing i can think of is that when taking the motherboard off the back of the display is maybe something above got damaged. i thank you both for your answers. is there a heat rip sensor on this model that would cause it to go into protected mode even though it was totally disassembled? i had used my separater to warm the adhesive to make removal of the baord easier
I'm unsure about the sensor... but I use a heat gun as well and never had issues with the Motorola's... i have 3 here one still on GB and the other two on jb.. if you know of a way to get me a shipping label I could send ya one if you think its the logic board or battery (screens are broken)...
Sent from my XT907 using xda app-developers app
ezknives said:
I'm unsure about the sensor... but I use a heat gun as well and never had issues with the Motorola's... i have 3 here one still on GB and the other two on jb.. if you know of a way to get me a shipping label I could send ya one if you think its the logic board or battery (screens are broken)...
Sent from my XT907 using xda app-developers app
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Very appreciative man, but the riddle has solved itself. I have changed charging voltages every few hours from different usb sources to wall and to computer. it finally flashed n and i got life. I had a very distraught customer.(not to mention the guy who said sure gimme an hour) xda is a common answer to my google queries.I'm glad that i did finally join. :good:
awesome bunch of guys

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