Heating underneath display - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

Hi,
is anyone having heating issues with display panel ?
I'm attaching a picture of the portion where the heat arise after use for a while.
location marked on picture.
always on 120hz refresh rate
I'm using galaxy s20 5G SM-G981U1

So it's hot there?
Maybe a display or component failure in progress.
Never seen that with a OLED screen.
If an internal component is getting hot enough to effect the display it will eventually cause it to fail.
Return for repair or better replacement.

blackhawk said:
So it's hot there?
Maybe a display or component failure in progress.
Never seen that with a OLED screen.
If an internal component is getting hot enough to effect the display it will eventually cause it to fail.
Return for repair or better replacement.
Click to expand...
Click to collapse
not much heat, its like warm a bit. max 22°C
but in 60hz temperature remains normal

mohaiminulmunna said:
not much heat, its like warm a bit. max 22°C
but in 60hz temperature remains normal
Click to expand...
Click to collapse
Maybe a power hungry flat pack under there and nothing abnormal about the temperature difference.
The display on the other hand doesn't look normal... that sucks.

Related

Left Side gets Heated

I was reading on the Note 8 the other day and started noticing that the left side of the tablet gets pretty warm/hot. Is it just me or does anyone else have this issue? The rest of the tablet remains cool- just the left side around the middle.
JokeZony0u said:
I was reading on the Note 8 the other day and started noticing that the left side of the tablet gets pretty warm/hot. Is it just me or does anyone else have this issue? The rest of the tablet remains cool- just the left side around the middle.
Click to expand...
Click to collapse
This issue already discussed before. It is quite normal for a device to get some heat. Anyway, I think there is a big difference between warm and hot. If your device really gets HOT, then it is a problem. My device gets warm as well as you described, but I wouldn't say it gets hot or uncomfortable to hold. I think the temperatures quite similar to my SGS3.
CPUs and GPUs put out heat. Batteries put out heat. The more intensive the activity (particularly watching video, gaming, internet use and GPS) the more heat will be generated. This is a fact with all tablets, and computers in general. I'd think it was strange if the device didn't get warm somewhere. Heat on the left side is completely normal, although not sure what component (CPU, battery, etc.) is located there.
Now its impossible to tell what OP means exactly by "warm" or "hot" as this are not quantitive in any way. It shouldn't get hot enough to be uncomfortable (or even hurt) to hold in any way. Excessive heat may be an indicator of a faulty battery or some other hardware defect. But usually not. And the device will shut itself down long before a temperature is reached, that will hurt anything (if that is what you are worried about).
There are ways for the system to tell you the temperature, but I think its only at one location (CPU?) which may not be the problem area. So measuring this way may have limted usefulness in real life.
That is the location of the cpu unit so I wouldn't worry about it unless it gets very disconcertingly hot.
Sent from my SCH-I510 using xda app-developers app
Im using the Sansung OEM cover. Holding it in portrait mode, mine gets "warm" on the left side near the edge... but only when its in my pocket and its in sleep mode and wifi is turned off. Kinda fels like my BlackBerry when its polling for a tower, it gets real warm. I have a N5110 wifi no radio so trying to determine why the warm up.
Regards,
Heat "problem"?
JokeZony0u said:
I was reading on the Note 8 the other day and started noticing that the left side of the tablet gets pretty warm/hot. Is it just me or does anyone else have this issue? The rest of the tablet remains cool- just the left side around the middle.
Click to expand...
Click to collapse
My Galaxy Note 8 has this problem. I installed an app which read the temperature and it reaches 40°C when I play video games. It has the power saving mode on. Is it normal? I'm worried about this
JNoise05 said:
My Galaxy Note 8 has this problem. I installed an app which read the temperature and it reaches 40°C when I play video games. It has the power saving mode on. Is it normal? I'm worried about this
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Click to collapse
i've installed diagnosis app to check the temp, mine reaches ~40C(i think this is the battery temp) when i play also. so i think many of us is experiencing this *____*
Just with normal use the left side of my unit is getting annoyingly warm. Hopefully they can fix this with an update or something. I'm experiencing this on stock, anyone on custom software experiencing this too?
Sent from my GT-N5110 using xda app-developers app
Hey thanks for all your input guys. It's good to know I'm not the only one experiencing these problems. So far, I don't think it's bothering me to the point that I wish to call Samsung up for a replacement. It does get a bit warmer especially if I have the pen out and writing some notes. I do also understand it's more than likely that the cpu is located there but I've never had a warming problem w/ other smartphones and tablets I've had.
Either way, thanks for all the input!
I agree
JokeZony0u said:
I do also understand it's more than likely that the cpu is located there but I've never had a warming problem w/ other smartphones and tablets I've had.!
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Click to collapse
I agree with you, my father's got an iPad mini and the gadget doesn't present warming problems and battery life is much better. Do you think all Note 8 devices present the same problem? I'm thinking seriously of replace mine for a brand new Note 8.0 but if it presents the same problem, I'll be wasting my time...

[Q] Sgs3 Display issue

Hi
I played Hungry Shark Evolution and my smartphone gets very hot, then suddenly it hangs and shut down.
Now i can start it normaly but i get this Lines movieng up and flickering, also when i switch off the display with poweer button it
dont come up again until i do an hardreset(remove akku or hold powerbutton).
Anyone an idea what is damaged? Display or GPU ?
I make a video and published it on youtube but i cant post links
Thx 4 Help
Have you tried a factory reset? The CPU may have gotten stuck at a high workload and hung/burned itself up a bit. If that's so I'm not sure which would be harmed. It might have been the screen because the high heat.
display or gpu,cpu
ShernDog said:
Have you tried a factory reset? The CPU may have gotten stuck at a high workload and hung/burned itself up a bit. If that's so I'm not sure which would be harmed. It might have been the screen because the high heat.
Click to expand...
Click to collapse
Yess i did a factory reset and add a omega Rom 60 on it. works flawless except the display lines and power off issue.
If the display is damaged i just can threw it away cause a new cost 100€ same as a used Device.
But if its an hardware issue i could buy a cheap one with broken display.
Big question what could be damaged..

Phone getting heat!

I've already had kinda same question before, but for a clarification.. please reply!
is there a difference in ambient temperature like 27C room temperature without AC(Air-Conditioner) and 27C Air-conditioned room!
i;m really getting paranoid. my use with my mobile is moderate!
at a room temperature of 27-29(without air condition/fan) and brightness in the middle! (wifi/4g):
watching video gets the phone a very bit warm and when browsing(FB,Messenger,Watsapp) the battery temp goes around 32-33 and all the temperature in the sensors goes around 36-41 and msm goes from 36-40. Playing NOVA 3 battery temp goes a high of 34 and other sensors around 39-42C, with fan a degree or so becomes less and in an air-conditioned room, the degrees gets less 3C than the tamps mentioned above.
but everything goes up when I step out in an open environment like i'm travelling in a bus/train in the same ambient temperature, battery temps reaches 36-37, other sensors goes around 38-44. and the back of the phone stays really cool, but the screen just gets hot.. i lock the phone, it suddenly cools down, but when unlock it in seconds it gets heated again, same if i watch a video, the phone gets a bit warm ... is this normal/wierd? I've already replaced a phone and this also doing the same...
is it normal or am i getting paranoid please reply!
msvr3 said:
I've already had kinda same question before, but for a clarification.. please reply!
is there a difference in ambient temperature like 27C room temperature without AC(Air-Conditioner) and 27C Air-conditioned room!
i;m really getting paranoid. my use with my mobile is moderate!
at a room temperature of 27-29(without air condition/fan) and brightness in the middle! (wifi/4g):
watching video gets the phone a very bit warm and when browsing(FB,Messenger,Watsapp) the battery temp goes around 32-33 and all the temperature in the sensors goes around 36-41 and msm goes from 36-40. Playing NOVA 3 battery temp goes a high of 34 and other sensors around 39-42C, with fan a degree or so becomes less and in an air-conditioned room, the degrees gets less 3C than the tamps mentioned above.
but everything goes up when I step out in an open environment like i'm travelling in a bus/train in the same ambient temperature, battery temps reaches 36-37, other sensors goes around 38-44. and the back of the phone stays really cool, but the screen just gets hot.. i lock the phone, it suddenly cools down, but when unlock it in seconds it gets heated again, same if i watch a video, the phone gets a bit warm ... is this normal/wierd? I've already replaced a phone and this also doing the same...
is it normal or am i getting paranoid please reply!
Click to expand...
Click to collapse
Rom? Its pretty normal that your phone heats up. Are you rooted?
Puddi_Puddin said:
Rom? Its pretty normal that your phone heats up. Are you rooted?
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Click to collapse
One Plus 3 default OS, Version 3.2.8 and no I didn't root my phone.. and also in all the situation turning on the camers starts warming/heating up the phone in seconds/minutes
msvr3 said:
One Plus 3 default OS, Version 3.2.8 and no I didn't root my phone.. and also in all the situation turning on the camers starts warming/heating up the phone in seconds/minutes
Click to expand...
Click to collapse
Well nothing to worry about..
Puddi_Puddin said:
Well nothing to worry about..
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Click to collapse
thank you but as i told you, the back stays comfortably cool/less warm, the screen is what becoming hot and why is it so? and y am i getting different temp is same ambient temps..
msvr3 said:
thank you but as i told you, the back stays comfortably cool/less warm, the screen is what becoming hot and why is it so? and y am i getting different temp is same ambient temps..
Click to expand...
Click to collapse
1. The back of the phone is aluminum it spreads heat, ever heard of a heatsink? It has copper to transport the heat and aluminum to spread it. The front of the phone is glass. Heat spreads less and stays at one position so it feels hotter then it is.
2. Smartphones heat up when using them, wouldnt be good either if they stayed chamber temperature. Ive seen people reach 80 degrees on the CPU when flashing a rom.

Display gradually dims

So far I'm liking my G7 but I have noticed that although I have auto brightness turned off, the display dims over time (plugged in or running on battery) requiring me to jack up the slider. An ideas?
CraigVMN said:
So far I'm liking my G7 but I have noticed that although I have auto brightness turned off, the display dims over time (plugged in or running on battery) requiring me to jack up the slider. An ideas?
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Click to collapse
I've literally watched mine move around but I do have auto brightness turned on. I'll turn it off and let you know if I have the same experience. It could possibly be a bug, I would factory reset if possible.
same happens here
I forget which phone it was, might've been my Nexus 5X (an LG phone), but even with Ambient Brightness and Auto Brightness settings turned off, the screen would subtly dim itself due to internal temperature. It was subtle, yet definitely noticeable when the same content was displayed on the screen for a while. I wouldn't doubt that's what you're seeing here. Do you notice this happening after prolonged use or when the phone is getting warm? I haven't noticed it with my phone yet but I'll keep an eye on it. I don't run with Auto brightness to begin with because it stinks on this phone.
Alcolawl said:
I forget which phone it was, might've been my Nexus 5X (an LG phone), but even with Ambient Brightness and Auto Brightness settings turned off, the screen would subtly dim itself due to internal temperature. It was subtle, yet definitely noticeable when the same content was displayed on the screen for a while. I wouldn't doubt that's what you're seeing here. Do you notice this happening after prolonged use or when the phone is getting warm? I haven't noticed it with my phone yet but I'll keep an eye on it. I don't run with Auto brightness to begin with because it stinks on this phone.
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Click to collapse
Now that you mention it, it does occur when I'm playing games
CraigVMN said:
Now that you mention it, it does occur when I'm playing games
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Click to collapse
Yeah. My guess is the kernel decides to dim the screen slightly before throttling the CPU or GPU. This way performance isn't impacted while still reducing heat. The screen itself produces a bit of heat but the real concern here is probably the battery, which will get quite toasty while gaming.
CraigVMN said:
Now that you mention it, it does occur when I'm playing games
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Click to collapse
Alcolawl said:
Yeah. My guess is the kernel decides to dim the screen slightly before throttling the CPU or GPU. This way performance isn't impacted while still reducing heat. The screen itself produces a bit of heat but the real concern here is probably the battery, which will get quite toasty while gaming.
Click to expand...
Click to collapse
CraigVMN said:
So far I'm liking my G7 but I have noticed that although I have auto brightness turned off, the display dims over time (plugged in or running on battery) requiring me to jack up the slider. An ideas?
Click to expand...
Click to collapse
For those that experience this effect while playing games, it's actually a changeable option. Go to Settings/General/Gaming and untick Break Time.
Otherwise I don't know yet. :|

Dark Marks and Color Bleeding Along Edges in Low Screen Brightness

Recently, my screen starts to have some narrow trapezoid dark marks along the left and right sides when the screen brightness drops below 40% (like 28% set by Auto Brightness). Sometimes there is also some color bleeding (from the icons and background below) at the top edge when the dark marks appear. When the brightness is 40% or above, they disappear. I suspect it has something to do with the PWM that controls the brightness. Does anyone has similar experience and any suggested ways to fix it? I am considering to send it to LG warranty repair. Thanks.
It's unrooted and on stock ROM, right ?
you could try a factory reset and see if it changes anything ...
Was the phone particularly hot at the point in time ?
Are you gaming ... like a lot ?
zacharias.maladroit said:
It's unrooted and on stock ROM, right ?
you could try a factory reset and see if it changes anything ...
Was the phone particularly hot at the point in time ?
Are you gaming ... like a lot ?
Click to expand...
Click to collapse
It is a T-Mobile, so no root and stock rom.
I may try a factory reset and see how it goes.
No, it was not very hot when it happened. It was at normal operating temperature.
No gaming. I don't even have any games installed. Those are not burn-in, as they are not in a fixed position. If I adjust the brightness, the dark marks will shift their location with the brightness %, so I suspect it is the PWM that causes it.
acefr said:
It is a T-Mobile, so no root and stock rom.
I may try a factory reset and see how it goes.
No, it was not very hot when it happened. It was at normal operating temperature.
No gaming. I don't even have any games installed. Those are not burn-in, as they are not in a fixed position. If I adjust the brightness, the dark marks will shift their location with the brightness %, so I suspect it is the PWM that causes it.
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Click to collapse
Could very well be, I'm however also thinking about SoC and Die (https://en.wikipedia.org/wiki/Die_(integrated_circuit)) issues [hardware defect]
zacharias.maladroit said:
Could very well be, I'm however also thinking about SoC and Die (https://en.wikipedia.org/wiki/Die_(integrated_circuit)) issues [hardware defect]
Click to expand...
Click to collapse
I agree with you. I did a factory reset and the issue remains, so it is likely hardware failure. I sent it to LG Warranty repair and see what they say.
LG diagnostic finding is "Display screen is discolored", so it appears to be the OLED screen that is defective and is covered by warranty. The "LCD (Main,Sub)" is replaced. I didn't know there is a "sub" LCD.
I received my phone back, and it seems I get a new phone. It is wrapped in plastic film. Thumbs up for LG warranty.

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