Hello,
I've browsed the xda forums and few others extensively for solution of my issue, though to no help at all.
For the starters some numbers and general info:
Phone: R800i Xperia Play, 2.6.32.9-DooMKernel, Xperia NXT v.1.3.
Only default stuff running in the background.
For testing and possible solution, apps I've installed:
Advanced Task Manager,
No-Frills CPU (min. 134 MHz, max 1.114 GHz, smartass, sio),
Battery Defender (Temp 32C, voltage: 3.0V, changed from 4.0V).
I always keep Data, WiFi, Bluetooth, GPS off, unless I need them. Brightness is about 30% most of the time, no auto-brightness control.
For solution purpose I've got manual network selection for 2G, usually it is 2G/3G auto search - never got issues with this.
I've got two batteries, stock one and a Tell Me one, both 1500 MAh, both never had any issues.
Today morning (7AM), as usual, I've disconnected fully charged phone from the charger. I haven't noticed a thing that could be off about the phone.
I've went to the work, and around 11 AM I've messaged a little, and then I've noticed a weird thing - phone was very hot and the battery info said that it is on around 30%. Of course, first I've tried was to reboot the device, and lower the maximum frequency of the CPU.
Unfortunately it wasn't a bug or a mistake - phone really had around 30% charge left. I've got a usb cable from a co-worker to keep the phone from dying.
In the meantime, I've tried resetting the phone to factory defaults, tried flight mode, setting everything to off - nothing helped. Also, what's more weird - phone was charging incredibly slow (that might be because of charging from PC USB) when turned off and it still was hot.
I've realized that phone is getting really hot only in one area - near top right corner (place where light sensor is), on the backside, after you extend the phone (there is a little screw there, under 'sticker').
After getting back to home, I've tried charging the first battery to 100% - it completed, using stock charger, but it took quite longer than expected. Discharging is quite fast - 1% per 4-5 minutes. In ~50 minutes I've got 90%. This gives roughly 7 hours of work on battery. In flight mode, with everything turned off, with CPU on 134 MHz.
On a second battery, which I have in right now, I am steadily progressing from 93% to the 0% at the speed of 1% per 3 minutes.
Phone is +2 years old, not on warranty.
Any advice could be really appreciated.
Is it a stock battery or an aftermarket? I had an aftermarket battery once. It had a similar response in my phone. Bought another battery. OEM and solved it.
Sent from my R800at using xda premium
Maybe it's battery fault.
One of my battery did the same thing (it even got even bigger due gasses inside it). Replaced it and it's working fine.
If it happends on both batteries, maybe it's hatdware issue. In worste case, something inside phone is shortcutted and drainibg current, causing heating. Maybe opening phone and cleaning parts inside could help.
Sent from my R800i using xda app-developers app
Wouldn't hurt to open it up and using an eraser clean the battery contacts inside phone and on battery itself. Then use a can of compressed air to blast that bad boy.
Sent from my R800at using xda premium
I've got two different batteries, stock one that came with phone, and a second aftermarket one, which was rarely used - only on long trips when I wanted to play. Both of them couldn't be damaged like that.
Phone never fell on the floor, is always in protective rubber-like 'case' and of course it never even touched water.
Right now heat is strong enough to be a bit painful if you slide the phone out and touch the light sensor area on the backside. I will try to get some torx screwdrivers and open up this part, but I doubt I will find anything. I was wondering if switching back to stock rom could help.
I'm really at loss here since I don't wanna buy new one, though they're cheap right now (about 150$ in my area with 24 month warranty, without any contract), since I've got some holiday plans and wanted to have some more funds. I can go by with the 4-5 hour discharge time if I have a cable on me since I'm working at the office with computers. I can always charge the phone, but knowing that usually I never even fell under 80% after 8 hours at work is kind of bothering.
Have you reformatted the phone via flashing a ftf file... see if that fixes the issue.
Maybe try to use it without battery. Connect charger, remove battery while still powered on, and wait 15minutes (as i recall, it will not turn off). If phone is still hot, then it's not battery related problem.
Sent from my R800i using xda app-developers app
Bakisha said:
Maybe try to use it without battery. Connect charger, remove battery while still powered on, and wait 15minutes (as i recall, it will not turn off). If phone is still hot, then it's not battery related problem.
Sent from my R800i using xda app-developers app
Click to expand...
Click to collapse
Actually I've tried this and I've got some results. Phone turns off when it stays this way in OS for a while, so I did that in Boot manager, which I thought won't be affected by OS itself, and I was right - phone stays on, with screen on. Unfortunately, it is very hot in the 'usual' place. So we can root out the possibility that this is a battery issue.I am not quite sure, but also this is certainly not antenna, since it is off in the boot manager, as well as WiFi, BT and GPS.
So could it be that the kernel itself, which must have some module responsible for power management, went crazy? That is just my wild (hopeful) guess, and I wish that flashing will help. Any ROMs that you can advice?
FouLu said:
Actually I've tried this and I've got some results. Phone turns off when it stays this way in OS for a while, so I did that in Boot manager, which I thought won't be affected by OS itself, and I was right - phone stays on, with screen on. Unfortunately, it is very hot in the 'usual' place. So we can root out the possibility that this is a battery issue.I am not quite sure, but also this is certainly not antenna, since it is off in the boot manager, as well as WiFi, BT and GPS.
So could it be that the kernel itself, which must have some module responsible for power management, went crazy? That is just my wild (hopeful) guess, and I wish that flashing will help. Any ROMs that you can advice?
Click to expand...
Click to collapse
Well, to test if everything is working properly, flash stock firmware with flashtool (even kernel). Test all functions of phone with apps (wifi, BT, gps, 3g, flashlight, tear-front camera). If all works, maybe some chip is overheating.
In that case, if you don't know how to open phone, maybe it's best to take it to service.
If you do know how to open it, first start cleaning enterier. If that don't help, try to power it while dissasembled, and see what chip is overheating and google for it's model to see what it is.
Sent from my R800i using xda app-developers app
Bakisha said:
Well, to test if everything is working properly, flash stock firmware with flashtool (even kernel). Test all functions of phone with apps (wifi, BT, gps, 3g, flashlight, tear-front camera). If all works, maybe some chip is overheating.
In that case, if you don't know how to open phone, maybe it's best to take it to service.
If you do know how to open it, first start cleaning enterier. If that don't help, try to power it while dissasembled, and see what chip is overheating and google for it's model to see what it is.
Sent from my R800i using xda app-developers app
Click to expand...
Click to collapse
Thanks for advice. I will flash the phone completely to stock and test it. Actually, if it is turned off, it is not heating up but starts to when I try to charge the battery.
I'm working at IT company, but my knowledge ends at the desktop computers actually, certainly I am not into electronics - I can tell when capacitors on motherboard are starting to go bad, but that's it. Starting from laptops, some parts are to small and prone to damage to be just opening and looking around.
I suppose if the stock kernel won't help, I will seek assistance of some service since they always give some kind of warranty for repairs. Of course, I will keep this topic updated, since there might be same kind of lost soul with the same problem.
FouLu said:
Thanks for advice. I will flash the phone completely to stock and test it. Actually, if it is turned off, it is not heating up but starts to when I try to charge the battery.
I'm working at IT company, but my knowledge ends at the desktop computers actually, certainly I am not into electronics - I can tell when capacitors on motherboard are starting to go bad, but that's it. Starting from laptops, some parts are to small and prone to damage to be just opening and looking around.
I suppose if the stock kernel won't help, I will seek assistance of some service since they always give some kind of warranty for repairs. Of course, I will keep this topic updated, since there might be same kind of lost soul with the same problem.
Click to expand...
Click to collapse
When you are on stock kernel, test offline charging too (phone turned off, but charging). So heating problem is only limited to battery-charging electronics-kernel).
Post your results when/if it's fixed, no matter what they are. Good luck
Bakisha said:
When you are on stock kernel, test offline charging too (phone turned off, but charging). So heating problem is only limited to battery-charging electronics-kernel).
Post your results when/if it's fixed, no matter what they are. Good luck
Click to expand...
Click to collapse
Unfortunately, after flashing to stock R800i_4.0.2.A.0.79.ftf I still have this weird overheating issue and the battery is draining really fast. Seems like this is hardware problem, not a software one, since I tested it in many different ways to no help at all.
I will not let go off my XPlay, as I will visit service and try to repair The Best Gaming Phone to Date, though I will buy a new phone, which will be Xperia S, since I've got my eyes on it ever since I played on my friend's one - Final Fantasy 7 with OpenGL plugin in fpse looked really great, and the controls were fine for my tastes.
When I get the XPlay fixed, I will update this thread, since I like this phone and would like to have it back and running.
Thanks for all the help, I really appreciate it
I did a search and most of the Wifi problems seem to describe knox security and bootloader issues.
Here, I wish to describe/discuss what seems to be a hardware problem in my n7100 note 2.
This occurs with stock and dr. ketan rom on 4.4.2 even with wifipatch applied (technically not needed).
OS 4.4.2
boot loader: n7100ZSUFNL1 (I believe this bootloader should be ok - correct me if I'm wrong).
model GT-n7100
ISSUE
- the wifi icon doesn't turn on or wifi drops out when the system is running hot. This happened the first time after I flashed a ROM/upgraded and I thought it was a ROM issue.
- however, more recently, I have managed to keep the wifi signal absolutely stable when i open up the back cover and run a fan blowing on the back/cpu area at the top back of the phone around the camera area.
- with fan cooling => completely stable
- without fan cooling => drops out when system under load or randomly.
for some reason, omega rom had a problem for me where it kept disconnecting irrespective of the heat
I have seen discussions of our phone overheating but this seems to be a hardware problem with the wifi module.
I presume that there may be micro fractures with the wifi chip solder (seems to be a theme in electronics) that may be causing wifi problems with overheating.
This happened with an iphone 4 voice audio processing chip once for me and the "online community" had figured out a fix by taping in a "pressure mount" for the chip.
//blog.lovefone.co.uk/iphone-4-faulty-microphone-audio-chip-problem
Any suggestions on taping in a heatsink or pressure against the wifi module?
Help would be appreciated. Just adding to the knowledgebase in the community.
When Samsung adopted RoHS some range of devices plagued with badly soldered BroadCom chips. I personally know one S3 and two Note 2 (one is mine own) with all the same problem: no WiFi from time to time and likely no BT too.
I paid ~100 euros to change the main board with BC chip guaranteed working about half a year ago.
Thanks for the quick reply and confirmation.
After ordering a new midframe; playing around with screws and disassembling it a few times; it does feel like a solder joint/connection issue.
I haven't heard much feedback from the net on this problem which is why i raised it.
Others on the net have mentioned loosening the screws securing the motherboard down. I will try that as well but I presume that with a loose solder joint; overtightened screws may warp the motherboard just enough for the connection to flake out.
THanks again.
PS - if anyone else has the same problem/suspicion; please chime in.
So, in follow up.
Adding aluminum tape to the wifi chip didn't seem to work. I took it off and reseated the midframe where the antenna is located.
Still was getting dropped wifi.
Disassembled; took a small screwdriver and gently lifted the wifi contacts from the motherboard up so that it makes better contact with the midframe.
Seemed to help.
It's definitely hardware. Whether it's a problem with the WIFI chip or with the antenna; i don't know but it's somewhere along that line.
Crazy hardware gremlins
Save Note7 from potential exploding!
1. "Inportant" Disable fast charging under battery settings ( there is toggle to turn off)
2. Use OEM wall charger with OEM cable
3. Before charging phone close all active aplications and clear cashe
4. Before charging turn off wifi, bluetoth,nfc etc..
5.DO NOT CHARGE phone ubder pillow or in bad
Hope this tips help you guys and me
Perhaps we should also all be taking acupuncture and subscribing to new age homeopathy therapies? :silly:
If the battery wants to 'go bang' it will, no options will change that fact.
i'll just take my chances ?
Sent from my SM-N930F using Tapatalk
I think switching off fast charging would make a difference. Ad for the rest? Not sure.
radioraheem2 said:
I think switching off fast charging would make a difference. Ad for the rest? Not sure.
Click to expand...
Click to collapse
It doesn't, otherwise we would have been advised to turn it off by Samsung before the handset is replaced. Or a software update disabling the feature would have been pushed.
alltaken123 said:
It doesn't, otherwise we would have been advised to turn it off by Samsung before the handset is replaced. Or a software update disabling the feature would have been pushed.
Click to expand...
Click to collapse
Samsung didn't say a word what to do untill replace, but if you read about fast charging, there says " your device will charge quickly but may become hot"
It's got nothing to do with fast charging, it's a fault in the battery that will heat up and catch fire if you're fast charging or not....
http://www.samsung.com/uk/news/local/uk-statement-regarding-galaxy-note7
Sent from my SM-N930F using Tapatalk
Ardianow1 said:
Samsung didn't say a word what to do untill replace, but if you read about fast charging, there says " your device will charge quickly but may become hot"
Click to expand...
Click to collapse
See the post above mine
bottom line dont do anything that cause the phone to get too hot for long period of time.
Kansatsusha said:
bottom line dont do anything that cause the phone to get too hot for long period of time.
Click to expand...
Click to collapse
I think a lot of people are concluding that heat is the issue and will create the battery problem. I can't see any evidence that heat causes the battery fault to occur.
Well exploding battery will cause heat.... sooo XD... There probably many other component that cause it but anyone willing to force the note7"C4" to explode?
its a battery fault - the battery cells which are affecting the units are drawing too much power from the mains which in turn heats the battery past limit. i've had mine for about 4 days in the UK and three have told me "no recall or safety instructions have been given by company"
and samsung support have said "none of the problems has occured in the UK so you are fine to use and if it gets hot close all apps and place phone in cool place away from direct sunlight"
but samsung did say they were replacing phones. left details and call back will be in 7days
was on hold for 1 hour waiting for them to answer. might be quicker popping into a samsung store and asking about it.
but if people in UK need a piece of mind and wants to ring samsung the phone number to use is 0330 726 1000 *****THIS IS FOR UK RESIDENTS ONLY*****
remix754 said:
its a battery fault - the battery cells which are affecting the units are drawing too much power from the mains which in turn heats the battery past limit. i've had mine for about 4 days in the UK and three have told me "no recall or safety instructions have been given by company"
and samsung support have said "none of the problems has occured in the UK so you are fine to use and if it gets hot close all apps and place phone in cool place away from direct sunlight"
but samsung did say they were replacing phones. left details and call back will be in 7days
was on hold for 1 hour waiting for them to answer. might be quicker popping into a samsung store and asking about it.
but if people in UK need a piece of mind and wants to ring samsung the phone number to use is 0330 726 1000 *****THIS IS FOR UK RESIDENTS ONLY*****
Click to expand...
Click to collapse
I got a phone call from O2 earlier offering me to return the phone for a full refund or a partial refund with a different handset.
the option they didn't advise was to hold onto the phone and they will replace them when they get the new stock, they said this has been the most popular option with the majority of people opting for it, but they also said should the phone show any signs of the problem (getting hot when charging or swelling) I can take the phone in at any time for a refund.
chances are 3 just doesn't have all the info yet, but the recall is every phone, Samsung is probably still communicating with suppliers so it is likely a case of the firms are still learning then they will have to work out how to pass on the information to those affected.
I would have to say it's fast charging...or generic adapters. Because I used the original cable with a generic adapter and after charging for some time, the phone was extremely hot. As in ive never felt any phone become that hot. This was maybe in the first few days I got the phone. I saw fast charging was on so I turned that off.
I stopped using that particular adapter as well (which works for all our other Samsung and apple phones and pads) ... And it never became hot again.
I use another non branded adapter with a non Samsung cable in the office to charge and it doesn't get hot there. Doesn't get hot with my non branded car charger as well.
So my guess is it's the fast charging option. Or just that particular adapter. But so far... Fast charging off... With different adapters and cables.. And it's working fine.. And cool
the problem is 100% in the battery, nothing else in the phone is at fault.
basically when they make a battery it is done with layers of material and a catalyst (acid or similar) inside the battery is compartmented, if 2 of these compartments manage to interact with each other due to a fault in the separator you get a runaway reaction, at best you get a bit swelling or a hot battery, worst case it goes critical and fails (goes pop)
if you have a phone with a faulty battery you can play it safe and turn off options such as fast charging, but the fact is if the battery is one of the few faulty batteries in the wild you are only delaying the inevitable.
the only way to protect the phone is to monitor it carefully while it is charging as if the battery is faulty no amount of changing settings will solve the problem as if that was the case they would have released emergency firmwares by now to minimise risk.
but even then when the phone gets warm it isn't always the battery, my battery normally sits around 30-35C (even while charging) but my phone sometimes feels warm but the problem is the CPU running some times at 50-60C making the phone feel warm and not the actual battery.
Hi
I've got my hands on a nice HTC one m8 (16 GB) version. Unfortunately the phone has some kind of an issue. That's why the old owner bought a new phone and gave it to me.
The phone works flawlessly when connected to a charger. You can play games, run benchmarks etc.
As soon as the phone is disconnected from the charger it turns itself off under heavier load. Battery status is around 78% when this happens.
This happened under the latest stock ROM that was available.
Since then I unlocked the bootloader, installed TWRP and could reproduce the same issue with different Custom Roms (current official LineageOS builds, SlimRom, MoKee). Always the same issue.
On one occasion the device reset itself completely when it turned itself off. This would be an absolute no-go if I would like to use the device as a daily driver.
I checked the internet including all possible related threads here on XDA but could not find a solution.
The following recommendations did NOT work:
run self-test ( *#*#3424#*#*) in safe mode -> not possible anymore due to custom ROM
pressing Vol +/- and Power Button for 3 minutes
completely wipe everything (I already did this every time I installed a custom rom)
let the battery drain to 0% and then charge it to 100% and keep on charging for some hours with several restarts of the device
So my questions:
What's the root cause of this issue? Is this a general weakness of this device / model?
Why does the device not recognize the battery status correctly? With any other phone I had (Galaxy S2, Galaxy S3, OnePlus One) I never had the issue of the device turning itself unpredictably off.
Is it worth having the battery replaced? This would cost me about 100$ in local currency. I fear the problem only shifts from "78%" battery to a lower percentage and the device still unpredictably turning itself off. Also the device resetting itself is a bit of sword of Damocles.
I decided to buy a replacement battery from AliExpress:
Since I'm not yet allowed to post links: Search for "HTC One m8 battery".
The product I ordered was from the seller "QCKBST Global Store". The battery is reddisch / orange and includes a tool set in the preview-picture.
As stated in several fixing manuals / manuals for replacing the battery: It is a pain to do this with a HTC one m8!!!
With the proper tools it is feasable though. I also had the bad luck that all my internal wiring was covered in copper tape which made the replacement process not easier.
The replacement battery came with about 56% charge. I then charged it up to 100%. I can currently use the device playing games under heavy load (device gets very hot) down to 2-3% without any issues / sudden power off. Yay!
Pros:
Cheap
Works
Cons:
No battery temperature sensor. Most likely being a non-stock replacement battery
The tools delivered with the battery did not fit. It came with a Torx T4 instead of a T5. No help from the seller. Had to buy a tool set from another seller
I will very likely start using the device as a daily driver for the next few weeks and will post an update about the battery performance.
polaxis said:
I decided to buy a replacement battery from AliExpress:
Since I'm not yet allowed to post links: Search for "HTC One m8 battery".
The product I ordered was from the seller "QCKBST Global Store". The battery is reddisch / orange and includes a tool set in the preview-picture.
As stated in several fixing manuals / manuals for replacing the battery: It is a pain to do this with a HTC one m8!!!
With the proper tools it is feasable though. I also had the bad luck that all my internal wiring was covered in copper tape which made the replacement process not easier.
The replacement battery came with about 56% charge. I then charged it up to 100%. I can currently use the device playing games under heavy load (device gets very hot) down to 2-3% without any issues / sudden power off. Yay!
Pros:
Cheap
Works
Cons:
No battery temperature sensor. Most likely being a non-stock replacement battery
The tools delivered with the battery did not fit. It came with a Torx T4 instead of a T5. No help from the seller. Had to buy a tool set from another seller
I will very likely start using the device as a daily driver for the next few weeks and will post an update about the battery performance.
Click to expand...
Click to collapse
I did this a few weeks ago. Replacing the battery was a piece of cake Tbh. Not difficult just time consuming.
No damage except some marks to the speaker grills, which I was prepared to sacrifice and replace anyway.
Battery works real well now. Took a few discharge cycles to get it working 100%
Now lasts all day and charges under 2 hours from 0 to 100 using a cheap quick charge 3.0 charger from Ebay and a premium cable(this makes a big difference).
Battery Temperature works fine.
Phone behaves like new again now its running Nougat.