Random reboots while on battery and screen off - Nexus 6P Q&A, Help & Troubleshooting

My phone will randomly reboot every 5 or 6 minutes while on battery and the screen is off. This does not happen when the screen is on and on battery, or the phone is plugged in and the screen is either on or off. I recently got this phone used and don't recall if it ever worked correctly while on battery. The seller sold it as working. I also swapped out the motherboard with one I bought as a used part. The reason being, is that the original motherboard is 32GB, while the new one is 64GB. I bought the motherboard as is, not tested. I replaced the battery with a new OEM battery. Accubattery indicates the battery's health is 104%.
I've tried Nitrogen 8.0 and SuperXE 8.1 and the problem persists with either ROM. I've also flashed factory 7.1.2 and 8.0 and it still reboots while on battery and screen off. I'm not sure what to try next? I'll probably take it apart and try it with the original 32GB motherboard. I don't know if this is a hardware issue or software issue?
Update: I replaced the 64GB motherboard with the original 32GB motherboard and it works now.

The motherboards on recent Google phones including the Pixel have a tendency to burn out. You're probably lucky that the 32G motherboard is good.

Related

[Q] Is this an issue of a dead battery?

While charging my Nexus 7 I noticed that the battery was actually draining rather than charging. This is happened in the past as well where I would plug it in overnight and find it at 42%. My Nexus also dropped from 100% to 77% in less than an hour with no use at all.
Recently while charging I went into the bootloader to shut down the Nexus. Now I plug it in and the screen is blank. I have tied a rubber band around the power button so it is constantly being pressed.
Is this a battery issue that can be solved by simply ordering a battery on eBay and changing it? The past behavior of the tablet makes me think it's either a software or battery issue.
i have the exact same thing... n7 is dead as a brick... have tried everything... i also measured the battery and it's on 0.93 v so there is still juice inside...
can't figure why it doesn't work... if u find something plz let me know too
mine done the same thing . But it done so after leaving it for a few weeks not charging. I charged for like 30 minutes . turned it on . It started updating apps. then all at once screen went off. and that was it..
I had square trade warranty as my tab was bought back when 32 gb 2012 version came out. So i sent it in and they fixed it . I have no idea what they done but it has the same serial numbers mac address and so on. So i suspect it was just revived somehow.
I sent email asking exactly what was done to fix it with no reply back.
Don't have a warranty... it the 1st Gen n7 so I called Google and it doesn't have warranty
Sent from my SAMSUNG-SGH-I727 using Tapatalk
I'm way past warranty. I've had it a couple of years now.
I bought a battery off of eBay. I'm going to remove the back cover and replace the battery and hopefully that will fix the issue.
Will update with the results or lack of results.

[Q] Motherboard replacement

Yesterday I picked up a used Nexus 7 with a bootloop issue.. spent $10 so I figured worst case I bought an expensive charger for my phone. Either way, it looks like the bootloader is locked and I can't unlock it. Everything I've read seems to point to a bad emmc chip. Would replacing the motherboard solve this issue (assuming the new motherboard doesn't have the same defect). Also could I replace this one (an 8gb) with a 16 or 32 gb board?
I changed my motherboard from 16 to 32gb. All went without a hitch. I got this one...
http://www.ebay.com/itm/261636621214?_trksid=p2059210.m2749.l2649&ssPageName=STRK:MEBIDX:IT
Good luck! ?
Sent from my Nexus 7 using Tapatalk
eLCruz said:
I changed my motherboard from 16 to 32gb. All went without a hitch. I got this one...
Good luck!
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
Did you just want to upgrade or was there an issue with the original 16GB? If it's good (and you still have it) would you want to sell it?
I assume my motherboard is zapped. I can charge my Grouper while it's unplugged but no device will recognize it. I made the mistake of upgrading my partition with this issue, now I have a fancy paperweight. Thoughts?
I just ordered an 8GB replacement motherboard from eBay, cost $16.99. I'm figuring I'll be into this thing for a bit under $30 if all works out so worth the gamble I guess. I'll update once it comes in.
My new 32 gb motherboard arrived, and I installed it right away- I felt like it was Christmas morning. Fast forward to closing the case, and I get no power. Not even a weak attempt. I went through everything, it's all properly attached. Still nothing. It's currently charging with no LED light on. I am not optimistic. Anyone have any suggestions?
slyest12 said:
My new 32 gb motherboard arrived, and I installed it right away- I felt like it was Christmas morning. Fast forward to closing the case, and I get no power. Not even a weak attempt. I went through everything, it's all properly attached. Still nothing. It's currently charging with no LED light on. I am not optimistic. Anyone have any suggestions?
Click to expand...
Click to collapse
I replaced my boards also.... Bought a used unit that came from a Nexus that someone had broken the screen on.... So, I received the frame with camera/speaker and boards attached.... only thing missing was the usb/headphone piece which I just took from my old frame....
Put everything together.... sealed it up..... plugged it in..... Nothing...... mild heart attack..... But then, I let it charge for 10 minutes... returned to the unit and pressed and held the power button.... and it fired up....
So, as I don't have a suggestion on if there is something internally wrong.... But sure, that the battery is plugged in securely and give that power button another shot after charging for a little while...
Motherboard came in yesterday, couldn't have been easier to install just have to watch the plastic clips on the ribbon cable connectors, I broke one on the old motherboard, if they are anything like the PS3 if they break you're SOL. The new MB was on 4.2 so I went through the upgrade procedure to 5.0.2 and wow it runs lollipop nicely. Also I ended up getting a 16gb MB so that worked out well.
Try and use a regular tablet charger, which I think is 1.3 or 2.3 amps and not one of the generic chargers which are lower - you will notice a huge difference in charging time. I'm using the tablet charger on my S4 and it goes from 10% to 100% in around an hour.

[N910F] Note 4 new battery keeps on restarting, does not turn on

Hello all,
As my trusty Note 4 which I've had for over a year gave signs of low battery life (lasting only 3-5 hours on a full charge), I decided to pick up a new replacement battery.
I purchased it from a renowned retailer, it is an original battery with the plastic packing and everything. Made in Korea, Assembled in Vietnam.
The problem is, I inserted the battery and the phone won't turn on. I put the charger in as I though it was discharged. While on charge it turns on perfectly and I can use it. As soon as I remove the charging cable it shuts down after 1 sec. After that when I try to turn it on it keeps restarting, won't get past the Note 4 logo.
My phone is rooted, with TRWP recovery and Emotroid 6.0.1 ROM on it.
Could this be a software issue? I can power it up just fine in download mode, but recovery does the same as normal boot up.
Thank you
sounds like a bad battery, even trusted sellers send out bad batteries sometimes.
I second the vote for bad battery. I had the same situation with a replacement battery. If the phone is turned off and connected to the charger, the charging image pops up briefly, closes down and then pops up again repeatedly. All my other batteries charge normally in the phone. There are too many bogus parts on the internet. Other than buying directly from the manufacturer I don't know of any way to be sure what I am buying is genuine.
Yep....deffo a battery issue. I got a new battery for my wife's N4 direct from Anker. The same as I have done for every phone I've ever needed a new battery for. NEVER had any problems with Anker batteries....
https://www.anker.com/products/A6035021
This link takes you to the Anker website, but to buy the battery, the website will redirect you to the Anker store on Amazon.
Stay WELL away from eBay, even if the seller states 'genuine' you can pretty much guarantee that the offered battery has never seen the inside of a Samsung battery factory.

Battery Drain Issue

Ok, a little background, I have a Moto G4 Plus, about 3 weeks ago the phone was thrown and the screen shattered. I bought a new screen and made the replacement. In the process of taking the battery out i did not realize that the battery on this phone was soft, so it did bend when taking it out, but it was flattened when reinstalled. The first week or so I had no battery issues with the phone and I was using ressurection remix, but I did have network signal issues, so I had to do a fastboot reset to the most recent stock image. I had no issues but I messed up trying to root, so I had to reflash stock and that is when the issues started. Currently I also have unlocked bootloader, rooted, and installed twrp.
The issue has happenned even after doing 2 or 3 different factory resets, but basically what will happen, is the battery % will stay at a high number, then fall down to 50ish%, then I'll get a low battery warning saying it is at 15%, then turns off. I turn the phone back on and shows a higher % available, usually in the 40s, then soon after it will do the same thing.
Could this be because I damaged the battery when swapping it out and it took a few cycles to get messed up? I did order a new battery and I'm waiting for it to arrive. Or could this be an issue with the most recent stock image that my phone does not like.
It's more likely the battery that is causing the problem caused by bending it. Maybe a short. And now a risk for you too. I would replace the battery asap before you have a burning galaxy :laugh:
A Lithium battery isn't like a piece of metal that you can bend. The layers are very thin and the inbuilt batteries had no hardshell.
strongst said:
It's more likely the battery that is causing the problem caused by bending it. Maybe a short. And now a risk for you too. I would replace the battery asap before you have a burning galaxy :laugh:
A Lithium battery isn't like a piece of metal that you can bend. The layers are very thin and the inbuilt batteries had no hardshell.
Click to expand...
Click to collapse
I'm used the batteries with a hard shell, this is my first phone ever with a permanent in built battery, so when I went to pull it out it did bent and it freaked me out cause it hasn't happenned before. Thankfully the new battery I ordered is in the same city I live in so should have it in a day or 2 .

Device temperature too low, can't charge oneplus 5

I own an OnePlus 5 that I have used for a couple of months with stock OOS and locked bootloader and unrooted. I have always used an original dash charger and cable. However, few days ago the phone became unresponsive to the charger and after the battery died. When I reconnect the charger now, it gives a message that device temperature too low, can not charge and when I turn it on the battery shows 50% charge when I remove the charger it turns off after a short while. The phone didn't suffer any drop or water damage or any other kind of accident. The phone is not under warranty so, I need to find a way to charge the phone. I have searched for the problem on many forums and some point out to a faulty temperature sensor on the battery and others point to the daughter charging board while some say there's an issue with the motherboard. Is there anyone who could troubleshoot the problem precisely.
Or, Is there a way, to flash a custom kernel which could turn off the temperature sensor on the battery, if it's there.
Also, needed to know that will the problem go away after a battery replacement?
I have wiped cache and data, downgraded the phone from Pie to Oreo and nothing seemed to work. Some people suggested putting it to rest for 24 hours, I also did that, but to no avail.
seems like the thermistor in the battery died ,i suggest to swap the battery with a new one
steve-fox said:
seems like the thermistor in the battery died ,i suggest to swap the battery with a new one
Click to expand...
Click to collapse
Are you sure that the temperature sensor is located on the battery or inside the battery? Because, if I buy a new battery that would mean I can not get it replaced if the issue is not with the battery.
I have to order it online as the battery is not available in the local market.
Abuzar991 said:
Are you sure that the temperature sensor is located on the battery or inside the battery? Because, if I buy a new battery that would mean I can not get it replaced if the issue is not with the battery.
I have to order it online as the battery is not available in the local market.
Click to expand...
Click to collapse
yes sir ,that why batteries have more than 2 pins ?..swap it and you will be good to go
steve-fox said:
yes sir ,that why batteries have more than 2 pins ..swap it and you will be good to go
Click to expand...
Click to collapse
Sorry for being overly cautious about the issue. I have searched some forums where people couldn't get the issue resolved even after changing the battery.
Still, I am thankful regarding your input and replies.
But is there, a custom kernel available where the battery sensor could be bypassed for the cell to charge?
Before buying anything or opening the phone yourself contact OnePlus. If the phone is under warranty probably they will take care of it. (even if, many times, the battery doesn't have the same warranty as the rest of the phone)
Abuzar991 said:
Sorry for being overly cautious about the issue. I have searched some forums where people couldn't get the issue resolved even after changing the battery.
Still, I am thankful regarding your input and replies.
But is there, a custom kernel available where the battery sensor could be bypassed for the cell to charge?
Click to expand...
Click to collapse
i haven't faced this issue on the op5 ,but in the past i have faced it in other phones (not charging with battery is too cold message)either way a replacement is pretty cheap i would go for it ..(i don't think it's a good idea trying to dissable it ,the same sensor is responsible for the current that the battery is receiving so i don't think you can dissable it at all because the phone will not know at what amps to charge the battery,i bet it won't charge or extremely it will become galaxy note 7 bomb :silly: )
steve-fox said:
yes sir ,that why batteries have more than 2 pins ..swap it and you will be good to go
Click to expand...
Click to collapse
steve-fox said:
i haven't faced this issue on the op5 ,but in the past i have faced it in other phones (not charging with battery is too cold message)either way a replacement is pretty cheap i would go for it ..(i don't think it's a good idea trying to dissable it ,the same sensor is responsible for the current that the battery is receiving so i don't think you can dissable it at all because the phone will not know at what amps to charge the battery,i bet it won't charge or extremely it will become galaxy note 7 bomb :silly: )
Click to expand...
Click to collapse
Thanks dear for the suggestion. Building up the courage to order a replacement. ??
daniel_loft said:
Before buying anything or opening the phone yourself contact OnePlus. If the phone is under warranty probably they will take care of it. (even if, many times, the battery doesn't have the same warranty as the rest of the phone)
Click to expand...
Click to collapse
Dear the problem is that the phone is not covered under any warranty. I purchased it locally from a shop that doesn't provide warranty for any phone. I live in Pakistan, I tried contacting OnePlus but seems like they don't have any official stores in Pakistan. I guess, there's a service centre with whom they have partnership for services.
I guess, I have to contact them.
Abuzar991 said:
I own an OnePlus 5 that I have used for a couple of months with stock OOS and locked bootloader and unrooted. I have always used an original dash charger and cable. However, few days ago the phone became unresponsive to the charger and after the battery died. When I reconnect the charger now, it gives a message that device temperature too low, can not charge and when I turn it on the battery shows 50% charge when I remove the charger it turns off after a short while. The phone didn't suffer any drop or water damage or any other kind of accident. The phone is not under warranty so, I need to find a way to charge the phone. I have searched for the problem on many forums and some point out to a faulty temperature sensor on the battery and others point to the daughter charging board while some say there's an issue with the motherboard. Is there anyone who could troubleshoot the problem precisely.
Or, Is there a way, to flash a custom kernel which could turn off the temperature sensor on the battery, if it's there.
Also, needed to know that will the problem go away after a battery replacement?
I have wiped cache and data, downgraded the phone from Pie to Oreo and nothing seemed to work. Some people suggested putting it to rest for 24 hours, I also did that, but to no avail.
Click to expand...
Click to collapse
Hi, just curious about the update on this one? I've also encountered the same issue on my OP5 and still waiting for the battery replacement I ordered hoping that it is a faulty battery.
I didn't have the low temperature issue but my charging port did start to fail so I replaced it and the battery last month. The hardest part is getting the back off. The screen snaps in much tighter than most phones I've worked on which were glued shut.
I got my parts from E-Trade supply but I never will again. The charging port I got for an iPhone 6 I'm repairing was defective and they would only credit the part and not the $22 in shipping I paid them. They eventually did, but only because I bought several items over the past few years and I started putting up bad reviews on them. Never again.
The parts for the OnePlus 5 were okay although the brand new battery is only at 91% health. The original 16 month old one was 83% still a gain.
Hey brother, did the battery replacement fix the issue?? I have been having the same problem since today morning.
[Update] Was able to bring my OP5 to a local tech who is trusted to fix OnePlus devices but unfortunately the problem on my phone is with the motherboard. Tech already tried replacing the battery as well as the charging port to no avail, so I may have to stick with my OnePlus 5 permanently connected to a power source while I wait for the upgrade(OnePlus 7) to be released.
The same thing with me, I trying now to fix this, but... I can,t
Mobo issue
After almost a month with the local tech, he was able to order a spare part for the issue with my OP5 motherboard. Fingers crossed hoping that it will be fixed within this week, it already cost me $100 :crying: I'll update on which part needs to be replaced if the issue is with the motherboard itself.
aanishjangra said:
Hey brother, did the battery replacement fix the issue?? I have been having the same problem since today morning.
Click to expand...
Click to collapse
[UPDATE] A Battery replacement by OnePlus solved my problem. It also fixed certain other issues I was having like 3hr SOT, random shutdowns before reaching 0% etc. Cost me ₹1600 (around $22.5)
Jhem OP5 said:
After almost a month with the local tech, he was able to order a spare part for the issue with my OP5 motherboard. Fingers crossed hoping that it will be fixed within this week, it already cost me $100 :crying: I'll update on which part needs to be replaced if the issue is with the motherboard itself.
Click to expand...
Click to collapse
Good luck. I hope your issue gets fixed soon
Man I paid about the same for the battery and replaced it myself. But at least I didn't have to send it away. Unfortunately my only other phone (HTC one M8) doesn't work on my carrier.
[Update] My OP5's alive and kicking again. It cost me $40 for the board to be fixed, $60 for the front glass replacement.
Here's the pic of what was replaced on the motherboard
Sad to hear this is still going on with OnePlus phones. I had this problem with my 3T. Replaced everything, except the motherboard. I'm figuring it's that, but at this point I don't care. A replacement is anywhere from $80 to $150. You could buy a new 3T outright for that price.

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