[BUG] freezing with car charger - Galaxy S II General

Hi everybody and pardon in advance if there's already any other thread about it (I didnt found ..).
I'm experiencing freezing after I remove sgs2 from car charger, or after I close a call while charging. trying to switch the screen off causes freezing, I haft remove battery.
further infoes:
-car charger features: 5v 1a and no problem with other devices
-no problem until screen is off, freezing appears when I start using the phone and than I switch the screen off.
-my app list is very long, but this bug happened from the very first day I bought sgs2
-I installed "battery indicator" from market. it has the capability to show temperature and volting. before the phone freezes, I can read: hi temperature (over 35°) and "overvolting" issue (over 4,8v) .
it seems my sgs2 doesnt fit perfectly my charger and goes to overvoltage. screen is very hot when it freezes.
-cpuset is conservative 200-800 (it solved hot issue in daily usage)
did anybody else experience this bug? any hint aside not use the car charger?
tnx in advance

Is it a Samsung Car Charger or from some different manufacturer?
There was a thread on here about using non Samsung wall chargers. The discovery was if the charger has a poor output (ie noisy) it will cause some glitching or visible stuttering to the display whilst swyping through screens and stuff.
Might be similar?

u right about wall charger: stuttering using 1A 5v htc charger (samsung one is 5v 0.7A) and different Amperage doesnt affects time to charge my galaxy.
I was talkin of car charger, maybe it's 1A to causes overvoltage? I ll give it a try with another one, or a samsung charger. I'm not using a samsung car charger.
tnx

I fixed!
this is how:
-bought new usb cable. no problem with 1A 5v charger, but cable was a chinese one, now I use original samsung
-changed settings in setup cpu: 200-1200mhz (it was 200-800 before). for some reason, underclockin could be responsible of undervolting
I dunno wich of the 2 fixed the problem, btw I got rid of that
tnx for any hint u gave

Related

overheating when on charge

Hi, I use a non-official car charger and after half an our I got The battery icon on the screen becoming red with an esclamation mark on it. bottom part of the liquid gets quite hot (not much but noticeably). I switched to my htc car charger and I had a little improvement (1 hr before red icon). Now it happens also with the official wall-plug charger ( but a couple of hrs after). I noticed the wall-plug puts out 5v dc. On the back of the phone, after removing battery, I can read 5v maximum but on the back of the battery itself it's written max 4,225v.
sound strange! could be the cause? or maybe my rom angio acr 1,8 is?
couldn't find similar problem around...
same to me using tomtom charger...
Using setcpu?
I think it get overheated when you use the phone and charge it at the same time. Snapgdragon gets hot!
well, in the last 2 home charges no over heating...
I found out htc carcharger put out 5V 2A, while home charger provides 5V 1A, that's should be the overheating. now the question is: where to find a proper carcharger?
update
I found a micro carcharger from hamlet-exagerate pushing out 1,2A, testing in the next days...You need the USB cable to make ot work
It says Input: 1A on the inside of the liquid next to the IMEI. So maybe you should stick with a 1A =< Charger, because you may void your warranty or(and) destroy you battery or the liquid!
ca't find a suitable one! hope 0,2A won't make the disaster...
Ok, now using EviL 1.8.1 no more overheating...

Phone stops charging

My S4 has developed a problem where it seems to stop charging overnight, leaving me with a low battery in the morning. When I plug it into the charger the red light comes on, but when I return in the morning it has stopped charging and the battery has lost 20% of its charge.
A different USB cable, plugged into the same charger, seems to be charging it for now. Does this mean that the original cable is faulty, or do I need to get the USB connector on the phone checked out?
itm said:
My S4 has developed a problem where it seems to stop charging overnight, leaving me with a low battery in the morning. When I plug it into the charger the red light comes on, but when I return in the morning it has stopped charging and the battery has lost 20% of its charge.
A different USB cable, plugged into the same charger, seems to be charging it for now. Does this mean that the original cable is faulty, or do I need to get the USB connector on the phone checked out?
Click to expand...
Click to collapse
Maybe there is overheating problem so phone stops charging process. Try to start charging and observe it. When it stops charging again, check if it is hot.
Diamond 2 owner said:
Maybe there is overheating problem so phone stops charging process. Try to start charging and observe it. When it stops charging again, check if it is hot.
Click to expand...
Click to collapse
Seems to be, i've noticed this myself too on days my room is very hot. Ever since i've undervolted a little it hasn't happened again.
Sent from my GT-I9505 using xda app-developers app
Kenablo said:
Seems to be, i've noticed this myself too on days my room is very hot. Ever since i've undervolted a little it hasn't happened again.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
First make sure that phone is placed on clean, flat surface with good air flow. Worst case is placing it on bed, blanket or pillow - it will overheat for sure.
Undervolting will not help a lot, as it only affect CPU/GPU heating, while they are usually idling during charging. Main source of heat in that situation is not a CPU/GPU but charging itself.
If you have really high room temperature, and you can do nothing about it, than you can slow down charging process, so it will decrease charging heating. Just use regular USB port (computer or generic USB charger) instead dedicated Samsung S4 charger. Charging current will be decreased from 1.9A to 500mA.
If you want to have more control over charging and temperatures you could install Battery Monitor Widget Pro (https://play.google.com/store/apps/details?id=ccc71.bmw.pro). See example of data which you can got with on wireless charging thread: http://forum.xda-developers.com/showpost.php?p=43224425&postcount=1018
My battery temperature goes up to 35C during charging (wireless charging).
The theory re. heat is interesting, but doesn't seem to explain why switching USB cables fixed the problem immediately in this case. Is the S4 particularly sensitive to the fit of the USB cable in the socket??
itm said:
The theory re. heat is interesting, but doesn't seem to explain why switching USB cables fixed the problem immediately in this case. Is the S4 particularly sensitive to the fit of the USB cable in the socket??
Click to expand...
Click to collapse
No, S4 is not particularly sensitive to the fit of the USB cable in the socket.
Keep in mind, that max charging current on S4 is based on detection routine which tries to figure it out what is phone connected to (is it regular USB port specified for up to 500mA or dedicated 2 amps charger). It is necessary to accomplish down compatibility with generic USB hosts (you can connect S4 to every USB device) and fast charging feature (less then 2h charging time).
So, you can say, that S4 is sensitive to USB cable/device type. Switching from dedicated cable/charger to 3rd party, could decrease charging current and generated heat.
I hope, this theory explains all your doubts
Diamond 2 owner said:
No, S4 is not particularly sensitive to the fit of the USB cable in the socket.
Keep in mind, that max charging current on S4 is based on detection routine which tries to figure it out what is phone connected to (is it regular USB port specified for up to 500mA or dedicated 2 amps charger). It is necessary to accomplish down compatibility with generic USB hosts (you can connect S4 to every USB device) and fast charging feature (less then 2h charging time).
So, you can say, that S4 is sensitive to USB cable/device type. Switching from dedicated cable/charger to 3rd party, could decrease charging current and generated heat.
I hope, this theory explains all your doubts
Click to expand...
Click to collapse
Thanks for the explanation - it certainly does help. It looks as if the flaw may be with the detection routine, which was preventing it from charging when connected to the stock charger/stock cable, but was happy to allow it when using a different cable with the stock charger.
It also explains another anomaly - when using the S4 as a Sat Nav in the car with a TomTom High-Speed multi charger the phone will only charge if the screen is turned off. With the screen on it actually loses charge.
Is there any way to "hack" this logic to eradicate these anomalies and ensure that the phone charges when you want it to? Or could it be that there is actually a fault with my phone that needs to be checked out?
I suspect this may not be normal...I've just plugged the phone into the stock charger/cable. The phone/battery are not remotely warm, but the phone isn't charging, even though the battery icon in the notification bar says that it is (there's a lightning bolt in the battery icon but it just lost 1% charge in 2 mins with the screen turned off).
The LED went red when I first plugged it in, but the red light went out after a minute, although the lightning bolt remained in the battery icon in the notification bar.
???
itm said:
I suspect this may not be normal...I've just plugged the phone into the stock charger/cable. The phone/battery are not remotely warm, but the phone isn't charging, even though the battery icon in the notification bar says that it is (there's a lightning bolt in the battery icon but it just lost 1% charge in 2 mins with the screen turned off).
The LED went red when I first plugged it in, but the red light went out after a minute, although the lightning bolt remained in the battery icon in the notification bar.
???
Click to expand...
Click to collapse
At this point it sounds like you have a defective battery/phone Anyway, here's a sample test you can try:
Get this app: Galaxy Charging Current Lite
With the stock charger/cable you should be seeing (remember to keep refreshing):
- Not charging - -
- Screen on - 1200 mA
- Screen off - 1900 mA
(yes, there's a difference in the charging current depending on whether the screen is off or on)
Plugged to a standard USB port: 460 mA
Plugged to a car charger - depends on the output of the charger - most car chargers are 1A these days
Try with different cables plugged into a PC USB port - you should be getting a constant 460 mA charge. If it stops as described and you tried a few cable it's likely the battery/phone. HTH
Breach1337 said:
At this point it sounds like you have a defective battery/phone Anyway, here's a sample test you can try:
Get this app: Galaxy Charging Current Lite
With the stock charger/cable you should be seeing (remember to keep refreshing):
- Not charging - -
- Screen on - 1200 mA
- Screen off - 1900 mA
(yes, there's a difference in the charging current depending on whether the screen is off or on)
Plugged to a standard USB port: 460 mA
Plugged to a car charger - depends on the output of the charger - most car chargers are 1A these days
Try with different cables plugged into a PC USB port - you should be getting a constant 460 mA charge. If it stops as described and you tried a few cable it's likely the battery/phone. HTH
Click to expand...
Click to collapse
Thanks. The Galaxy Charging Current Lite app shows:
- Connected to stock charger, screen on, with stock battery: a steady 340
- Connected to stock charger, screen off, with stock battery: 380
- Connected to PC USB port, with stock battery: 460
- Connected to car charger, with stock battery: 500
- Connected to stock charger, screen on, with 3rd party battery: a steady 300
Can I assume from the above that the phone is faulty?
itm said:
Thanks. The Galaxy Charging Current Lite app shows:
- Connected to stock charger, screen on, with stock battery: a steady 340
- Connected to stock charger, screen off, with stock battery: 380
- Connected to PC USB port, with stock battery: 460
- Connected to car charger, with stock battery: 500
- Connected to stock charger, screen on, with 3rd party battery: a steady 300
Can I assume from the above that the phone is faulty?
Click to expand...
Click to collapse
I just tried a few different USB cables with the stock charger - these gave me interesting results:
- Cable 1 : 1200
- Cable 2: 1200
- Cable 3: 420
So maybe it's the stock cable that's the problem?
itm said:
Thanks. The Galaxy Charging Current Lite app shows:
- Connected to stock charger, screen on, with stock battery: a steady 340
- Connected to stock charger, screen off, with stock battery: 380
- Connected to PC USB port, with stock battery: 460
- Connected to car charger, with stock battery: 500
- Connected to stock charger, screen on, with 3rd party battery: a steady 300
Can I assume from the above that the phone is faulty?
Click to expand...
Click to collapse
Actually it looks like more of a problem with your stock charger (as you're getting normal charge from a USB port)!
- Are you using the same cable with your stock charger, when connected to the PC USB port and your car charger? Try a different cable in all this scenarios to rule out the cable as a factor.
- What I'd recommend is to find another stock charger - go to a Samsung shop / service center - ask to test on site and see what input your phone is getting. You may test with any other mains charger but as you need to be sure of the power it delivers I'd test with an official Samsung 2A charger. If you don't get 1200/1900 with another official charger (and a working cable) then it's an issue with the phone/battery.
Re your car charger. It's possible that your car charger is 500 ma only (check the writing) if it's 0.5 A you need a new one (get a 2A one). Is it a real 12V cigarette charger or are you plugging the cable in a USB port on your car?
---------- Post added at 12:15 PM ---------- Previous post was at 12:11 PM ----------
itm said:
I just tried a few different USB cables with the stock charger - these gave me interesting results:
- Cable 1 : 1200
- Cable 2: 1200
- Cable 3: 420
So maybe it's the stock cable that's the problem?
Click to expand...
Click to collapse
There you go I fried two old cables already so not all of them can sustain the 2A charge. Use Cable 1 or 2. Make sure it also charges at 1900 ma - plug it in, open the app, refresh so that it shows 1200 ma. Turn the screen off. Give it 5 seconds (red led should turn on). Turn the screen back on. immediately refresh - you should see 1900.
I'm getting 1200/1900 from the stock charger if I use "Cable 1" or "Cable 2" as referred to above, so I guess that indicates that the charger is OK? (the stock cable only gives 300 from the same charger)
I'm surprised that I can only get 500 from the car charger using Cable 1/2, as it is advertised as having a 2amp port. In fact I get a higher charge rate (740) using the "slower" port on the TomTom charger - i.e. the port labelled "high-speed" actually delivers less current.
???
Yes cable 3 has gone bad. You should be good with the others.
Re the car charger - is 500 all you get with cable 1 or 2? Is the charger rated 2A for Android phones? Note that some high current chargers are high current only for Apple products and default to much lower output with non Apple products. It can also be a bad charger.- I had a defective 2A Anker car charger which wouldn't charge above 760. I RMAed it and the replacement works as intended.
Sent from my GT-I9505 using xda app-developers app
Breach1337 said:
Yes cable 3 has gone bad. You should be good with the others.
Re the car charger - is 500 all you get with cable 1 or 2? Is the charger rated 2A for Android phones? Note that some high current chargers are high current only for Apple products and default to much lower output with non Apple products. It can also be a bad charger.- I had a defective 2A Anker car charger which wouldn't charge above 760. I RMAed it and the replacement works as intended.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
I can get 1200 from the car charger with Cable 1. It's rated at 2A for TomTom devices.
Now this is bizzarre...I just took delivery of a brand new Nexus 10 and immediately tried the charger and cable from that with the Galaxy S4 - I only got 300ma. Can this really be coincidence??
Yes, weird. What about the the other way around - not sure whether the app will work on the Nexus but you can try. Try the S4 charger and cable with the Nexus.
Sent from my GT-I9505 using xda app-developers app
Breach1337 said:
Yes, weird. What about the the other way around - not sure whether the app will work on the Nexus but you can try. Try the S4 charger and cable with the Nexus.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
The Galaxy Charging Current App doesn't work on the Nexus 10 for some reason - it doesn't respond to a charger being connected to it
Can Samsung really be shipping dodgy cables on a mass scale?
itm said:
The Galaxy Charging Current App doesn't work on the Nexus 10 for some reason - it doesn't respond to a charger being connected to it
Can Samsung really be shipping dodgy cables on a mass scale?
Click to expand...
Click to collapse
I doubt it. No surprises that the app doesn't work on non-Galaxy devices.
By the way how did you try the cable from the Nexus? Isn't is a pogo cable (the wider one)?
Breach1337 said:
By the way how did you try the cable from the Nexus? Isn't is a pogo cable (the wider one)?
Click to expand...
Click to collapse
No it's a standard Micro USB.
itm said:
No it's a standard Micro USB.
Click to expand...
Click to collapse
If you get the same low charge rate with the Nexus charger/cable I'd take it to Samsung and show them the charge rate you're getting. Even if it works with another cable something is definitely not right - let them figure it out.

Galaxy S4 & Prolonged Navigation Use

I own a Galaxy S2. I have tried it using for navigation many times only to find that the battery discharges fully within 2 hours even if the phone is connected to a car charger. I used to think may be its because my car charger doesn't provide enough current to maintain the charge. But recently I found out the culprit. After around 20 minutes of use, the phone battery starts heating up, and it stops charging. I verified this with CPU-Z. It clearly shows battery overheated, power supply connected and not charging.
I was wondering if S4 also has similar issue. Has anybody used it for more than 2 hours with Google Navigation continuously while connected to car charger?
unni_kmr said:
I own a Galaxy S2. I have tried it using for navigation many times only to find that the battery discharges fully within 2 hours even if the phone is connected to a car charger. I used to think may be its because my car charger doesn't provide enough current to maintain the charge. But recently I found out the culprit. After around 20 minutes of use, the phone battery starts heating up, and it stops charging. I verified this with CPU-Z. It clearly shows battery overheated, power supply connected and not charging.
I was wondering if S4 also has similar issue. Has anybody used it for more than 2 hours with Google Navigation continuously while connected to car charger?
Click to expand...
Click to collapse
The most I have used it for is about an hour and half, and while the phone did heat up, it did continue to keep charging while connected to my in-car charger (just a cheap one). I can't remember whether the charger was able to keep up with the discharge though, I think it did. I was driving in bright sunlight, so I had screen brightness on max throughout that time.
.Astiak said:
The most I have used it for is about an hour and half, and while the phone did heat up, it did continue to keep charging while connected to my in-car charger (just a cheap one). I can't remember whether the charger was able to keep up with the discharge though, I think it did. I was driving in bright sunlight, so I had screen brightness on max throughout that time.
Click to expand...
Click to collapse
I've found that the USB cable can have a big impact on the charging current. I had the same problem with my car charger not keeping the phone charged, even though I was using a 2A charger. When I changed the USB cable I managed to quadruple the charging current (from 300ma to 1200ma) and solved the problem (I measured the charging current using the Galaxy Charging Current Lite app).
HTH
itm said:
I've found that the USB cable can have a big impact on the charging current. I had the same problem with my car charger not keeping the phone charged, even though I was using a 2A charger. When I changed the USB cable I managed to quadruple the charging current (from 300ma to 1200ma) and solved the problem (I measured the charging current using the Galaxy Charging Current Lite app).
HTH
Click to expand...
Click to collapse
In my case, I believe it was not because of the charging current or cable. I was trying with a car charger capable of charging a laptop, using the wall charger and cable which came with the phone. When the mobile stopped charging, I checked in CPU-Z app. The app was clearly showing status as "power supply connected, not charging and battery overheated". If I unplug the USB cable and connect it back, it will start charging again!
To make sure that I didn't miss anything, I will try with the app you suggested.
Just to update: The Galaxy Charging Current Lite doesn't seem to work with my Galaxy S2. It doesn't show any value.

[Q] N7 Discharging even while connected to charger! Help!

Hello community.
I am experiencing this problem since around three weeks. My Nexus 7 won't charge with full speed, I even think it is only charging with lower than the half of the rated 2 amps of the stock charger, or even less. As you can see in the attached screenshot, it behaves like it is receiving zero to none power, but the status sais it is in fact charging... I am using CoolTool to monitor the charge rate. While the screen is on and my tablet is just sitting there idle, it is "charging" with about -50mA (slowly discharging) and while watching youtube videos, it discharges with about 450mA. While the screen is off, it actually charges with arond 400mA MAX. While I was typing this it discharged with around 300mA.
I have not checked the resistance of the stock charger nor the cable, and I have yet to try making myself another fastcharge cable.
I am using the stock charger with the stock charging cable, and I recently upgraded to the latest SlimRom and FauxKernel.
Is this some kind of software failure or is my tablet/charger/cable broken?
Is someone experiencing similar problems?
(I have problems uploading pictures, google drive must be sufficient)
https://docs.google.com/file/d/0B3NjKaD9eYHeUFg3RVhEdk4xNTQ/edit?usp=docslist_api
https://docs.google.com/file/d/0B3NjKaD9eYHeVnh6ZGswVGNpS1E/edit?usp=docslist_api
All i can think of is ur using low amp charger try using official 2.1amp charger that came with the device.
Please ignore my spelling mistakes. English is not my native language.

Moto G4 plus having ghost screen and heating while charging.

Hello,i m using moto G4 plus for about 2,3 days now,and its having already nougat in it while i buy it.. The problem is while i charge with the turbo charger its becoming soo hot without any reason..i tried all the possibilities for changing it like,changing the connector port,made phone in airplane mode while charging,but no luck,then also its heating..and now the nmain problem is the ghost screen issue..when i was charging the touch is not responding ,like its moves on like it wishes, but now when not charging also the ghost screen is there while using my phone for sonething the screen works its own..Anyone please helpp.. I have one doubt too if this happens beacause due to the turbo chargger ,can i change the charger and have a low volt charger which can help the phone from heating and ghost like issues.. My turo chatgers details are. ::Input 100-240V -50/60Hz 0.5A
Standard Output: 5V ----1.6A
Then its written, some ,
TURBO 1 OUTPUT:9V----1.6A
TURBO 2OUTPUT:12 V-----1.2A
These ,are the details of the turbo charger if i use a charger with some other specs for charging ,i mean having less volt charger may be the phone will not have the heating issues and all. The another charger deatails are
Input:100-240V---50/60Hz. 0.2A
Output:+5V----1A
Can i use this volt charger for moto g4 plus ..please suggest is there any problem for phone while i use this another charger????? Please help...
You should be able to use that 1A charger without issue, and your phone should be somewhat cooler whilst charging (I use an Apple iPhone charger, which is rated at 5V, 1A, for overnight charging). It'll charge slower than the Turbocharger, but won't heat up your phone quite as much. Ensure this charger is of a reliable brand and in good condition.
As you've noted, the power transferred to your device via the Turbocharger will heat up your device - I've noted the battery appears to reach about 45 degrees Celsius when left to charge. Try not to use your device whilst it's Turbocharging (or if you really need to, try to keep it to light reading), put it on a desk or somewhere where it'll be as cool as possible. However, apart from changing the charger as previously mentioned, the heat is a result of charging the device at a fast rate.
As for ghost touch, you may have to refer your device for service or for a replacement if it persists.

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