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[Q] Any concerns about the heat the GT2 (7") produces?

I've removed the back protective film and notice that just through normal browsing usage that the device tends to get a good bit warm. I also own a SGS2 which only gets warm during excessive gaming sessions.
Is there anything to worry about here or do I just need to get used to it? Due to the size of the device, it's easy to notice the temp change and it's always a concern. Is there an acceptable temp range and if so, how do you guys measure it?

Kadin said:
I've removed the back protective film and notice that just through normal browsing usage that the device tends to get a good bit warm. I also own a SGS2 which only gets warm during excessive gaming sessions.
Is there anything to worry about here or do I just need to get used to it? Due to the size of the device, it's easy to notice the temp change and it's always a concern. Is there an acceptable temp range and if so, how do you guys measure it?
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Mine does the same thing. While browsing the Web the left side gets noticeably warmer. With that said the device never gets too warm. I checked it with a heat gun and the two sides(in portrait) Vary by about 5 degrees Fahrenheit(89 and 94) so it's definitely nothing to worry about.

HTC u11 heating

I just bought the HTC U11 and it's amazing. The only issue is that since I turned it on it feels quite warm in the hands. (I'm not used to that unless it is on heavy usage)
Is this normal? What are the normal temperature ranges? What are the temperature ranges that you are getting when you use it?
My phone seems to be at 36-40 degrees when connected to the internet, not downloading any apps and on light use.
What's the highest temperature at which I should start worrying?

For 20 days I have it, I have yet to experience it warm in hands (no matter what I do). This is current situation:

Maybe it's doing some updates in the background? Like for me, the Google photos in the beginning (of setting up the phone) would be downloading the thumbnails from my account. My phone run pretty cool to touch, even when running Candy Crush... on my Moto X pure it was hot when doing that.

35-40 degrees is standard for me under normal use, with HTC's bundled case and 28ºC room temperature..
The phone only gets a bit warm (not burning hot at all) but I'm worried about the long term effect on battery life.

Aish466 said:
I just bought the HTC U11 and it's amazing. The only issue is that since I turned it on it feels quite warm in the hands. (I'm not used to that unless it is on heavy usage)
Is this normal? What are the normal temperature ranges? What are the temperature ranges that you are getting when you use it?
My phone seems to be at 36-40 degrees when connected to the internet, not downloading any apps and on light use.
What's the highest temperature at which I should start worrying?
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Do you feel the area above fingerprint sensor hotter than compared to the other area?

aadeshiscool said:
Do you feel the area above fingerprint sensor hotter than compared to the other area?
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The phone is hotter on the top and bottom parts of the screen (right above the finger print sensor compared to the middle of the screen.

x_d_n said:
35-40 degrees is standard for me under normal use, with HTC's bundled case and 28ºC room temperature..
The phone only gets a bit warm (not burning hot at all) but I'm worried about the long term effect on battery life.
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Thanks! This sounds similar to what I'm experiencing. What's weird is that whenever I use the phone I also get a tingly numb sensation in my hands and arm (which has never happened with any other phone)which is also making me more sensitive to it.

namartlu said:
Maybe it's doing some updates in the background? Like for me, the Google photos in the beginning (of setting up the phone) would be downloading the thumbnails from my account. My phone run pretty cool to touch, even when running Candy Crush... on my Moto X pure it was hot when doing that.
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Click to collapse
It's still the same case even a day later, so I don't think it's because of any background updates.
Thanks for telling me!

Aish466 said:
Thanks! This sounds similar to what I'm experiencing. What's weird is that whenever I use the phone I also get a tingly numb sensation in my hands and arm (which has never happened with any other phone)which is also making me more sensitive to it.
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The phone is shocking you, maybe? Could be distributing an electric charge through your arm...

Aish466 said:
Thanks! This sounds similar to what I'm experiencing. What's weird is that whenever I use the phone I also get a tingly numb sensation in my hands and arm (which has never happened with any other phone)which is also making me more sensitive to it.
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Are you used to smaller phones? Phablets like this are a bit awkward to handle unless you have huge hands, maybe that's the reason.

Mine heats up as well. I only play games like Angry Birds, Plants vs Zombies and Candy crush. I installed CPU-Z to monitor the temperature. Cpu temperature is around 45-47c whole playing games. It reaches 50c while video recording. While Browsing and reading, the temp is around 38-40c. The area above the fingerprint sensor gets warm first and then the rear (near the camera). Is this normal?

50c is nothing unusual for a htc device. If the device feels warm to touch then everything is normal. If the device feels ice cold and you record those temperatures then you have a problem. The chip will have a thermal cut out switch so if your phone gets too hot it'll switch off. I think it's somewhere around 60c-65c as 70c is the standing temp for boiled water which can cause serious burns to skin, like a cup of coffee or tea.

Reduced screen brightness when getting hot?

Is the P40 Pro reducing the screen brightness when getting hot in direct sunlight?

My mate 30 Pro seems to do this. Really annoying as i dont have it on auto.

I'm asking because my Note10+ is doing that, my Oneplus 6 never did that and it really sucks for outdoor readability in sunlight...

hey, I know that when outside in the direct sun light auto brightness kicks in and dims it down as it'll help see the screen, other wise you may have the reflection of the sun and then the brightness from the screen, You can always turn it off in settings?

Actually that's not what I meant. On my Note10+ auto brightness kicks in a brightness boost in sunlight, so the display is pretty good to read, but after a while, the device heats up, caused by the sun and then it reaches a threshold and to reduce system temperature, the screen gets dimmed down to a level, where reading any text becomes very hard.

Screen Dimming in Sunlight

Friends there is some logic related to screen brightness and phone temperature. If the phone temperature is above 40°C, the creen in direct sunlight becomes dim even in full brightness and difficult to read. My iphone 11 screen remains bright in same conditions. The issue also existed for my earlied Note10+ handset. Does anybody face same issue in high temperature countries like India?

Not a good idea to view in direct sunlight for very long.
The phone dissipates heat through the screen... it can't when the screen is baking in the sun!
104 F is well within tolerance levels but is more stressful for the battery.
What you might not be seeing are other temp read outs from other temp sensors (there's about a dozen or more) on the phone which might be being pushed to their critical levels.
>When you see a phone doing this best practice is to turn off the screen and leave cool down. Phones that aren't optimized correctly can heat up rapidly even with no foreground apks running.
>If turning off the screen doesn't seem to be helping, power down the phone and allow to cool before using!
Wrapping a damp rag around backside of the phone can also be used to bring down the temp especially in dry climates

Same here but not really hot phone
Yes i got the same problem. But my phone is not very warm at all and it dimms by sunlight.. i think phone outside is max 40°c. I wonder why they do this, they put a display with 1600nits in and then it cant bring all because its too "warm" got this on none of other phones. Only samsung problems. And this **** cost 1200. I really dont understand what theyre doing
Greets
Marc
nitinmits said:
Friends there is some logic related to screen brightness and phone temperature. If the phone temperature is above 40°C, the creen in direct sunlight becomes dim even in full brightness and difficult to read. My iphone 11 screen remains bright in same conditions. The issue also existed for my earlied Note10+ handset. Does anybody face same issue in high temperature countries like India?
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---------- Post added at 10:22 PM ---------- Previous post was at 10:19 PM ----------
I tested this. My n20u warms so rapidly up even if i doing nothing or shut it down. And i was only for 3-5mins outside at sun. Outside temp was like 25-27°c.
My phone was not very hot not even really warm, but display dimmed very hard so i cant see anything outside.
blackhawk said:
Not a good idea to view in direct sunlight for very long.
The phone dissipates heat through the screen... it can't when the screen is baking in the sun!
104 F is well within tolerance levels but is more stressful for the battery.
What you might not be seeing are other temp read outs from other temp sensors (there's about a dozen or more) on the phone which might be being pushed to their critical levels.
>When you see a phone doing this best practice is to turn off the screen and leave cool down. Phones that aren't optimized correctly can heat up rapidly even with no foreground apks running.
>If turning off the screen doesn't seem to be helping, power down the phone and allow to cool before using!
Wrapping a damp rag around backside of the phone can also be used to bring down the temp especially in dry climates
Click to expand...
Click to collapse

Question about heat issue and screen dim

hey guys !
iv got real issue with the flip 4 , i like the brightness to be full and also the extra brightness
but every min that i just do simple stuff like open face book or just playing few sec with the phone my phone begin to warm in the upper side
and the screen dim much , but i only do stuff like few second so whats the point of the brightness
im at home and its not hot in my room.
maybe its defect of the screen or its like that ? cause when i hade s 22 ultra it also dim screen when get warm and the iphone also dim the screen when become hot but in the flip 4 i just do simple stuff and the screen dim then even the brigthness slider when i play with it is not function wtf? can you help me thx

Why are you burning up your retinas? Dim light isn't harmful to your eyes but bright light can be.
There absolutely no reason to use full brightness indoors all the time.
Moreover full brightness greatly reduces battery run time, lifespan as well as display lifespan.
It's best practice to not use these devices in direct sunlight... it will rag them out.
If you're hitting the thermal limits of the device and its battery or cpu core temps are too high ie the device is operating within normal parameters as opposed to a defective thermal sensor all you can do is reduce the load.
By turning down display brightness, reducing bandwidth usage and better optimizing the device to reduce power consumption. What's it's average mAh usage? SOT?
Heat is the inevitable byproduct of power consumption; reduce power consumption to reduce the heat.

blackhawk said:
Why are you burning up your retinas? Dim light isn't harmful to your eyes but bright light can be.
There absolutely no reason to use full brightness indoors all the time.
Moreover full brightness greatly reduces battery run time, lifespan as well as display lifespan.
It's best practice to not use these devices in direct sunlight... it will rag them out.
If you're hitting the thermal limits of the device and its battery or cpu core temps are too high ie the device is operating within normal parameters as opposed to a defective thermal sensor all you can do is reduce the load.
By turning down display brightness, reducing bandwidth usage and better optimizing the device to reduce power consumption. What's it's average mAh usage? SOT?
Heat is the inevitable byproduct of power consumption; reduce power consumption to reduce the heat.
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Click to collapse
man loll i just say i play with facebook whatsapp for just around 2 min and the screen dim all you sayed got nothing to do with it , i see better with max brightness thats why they made it so??? its not possible that after 2 min the screen will dim the phone is new from today and i dont have nothing on it so this strange

nosferatu123 said:
man loll i just say i play with facebook whatsapp for just around 2 min and the screen dim all you sayed got nothing to do with it , i see better with max brightness thats why they made it so??? its not possible that after 2 min the screen will dim the phone is new from today and i dont have nothing on it so this strange
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Is it just those 2 social media apps doing this?
I don't allow any social media or shopping apps on my phones. Trashware at best, spyware and/or malware at worst.

Just general use outside/car mine gets pretty warm and screen dims. Compared to my S22 Ultra it rarely dimmed but also a bigger phone

You likely know this but it bears repeating:
The processor and other circuits are mostly on the upper-half of the phone, near the camera. These chips do get warm, even hot, when applications are in use.
A lithium ion batter, when being charged or discharged, gets warm, even hot, depending the current flow needed to operate the applications, chips, and screen.
An OLED display can get warm, even hot, when lit brightly.
An OLED screen in sunlight will get warm, even hot, even if powered off, because it appears black.
Outside, if the OLED is bright white, it still gets hot because turning on all the pixels takes power, which is expressed as photos (light) and heat.
A very compact phone, like the Flip, has little surface area to expel heat. It doesn't have a fan, so the only way the phone cools is by convection (passing heat to the surrounding air) or transferring heat to your hand or (don't try this) water.
A folded Flip has about one-half the area to dispel heat because the screen cannot effectively radiate heat to the air or your hand.
Some applications use a lot of processing power even if you think you're using them. This is why so many people on this site discuss removing and/or disabling applications.
You can check in Settings --> Battery and Device Care --> tap on Battery --> tap on the graph, and the phone will display which applications are using the batter.
It's my understanding that the processor, battery and screen all have "checks" to ensure they don't get too hot, and Android can throttle these components to prevent wearing them out, burning them out, or causing a fire.
Hopefully others will better understand some of the challenges Samsung has in creating such a unique phone.

wpscully said:
You likely know this but it bears repeating:
The processor and other circuits are mostly on the upper-half of the phone, near the camera. These chips do get warm, even hot, when applications are in use.
A lithium ion batter, when being charged or discharged, gets warm, even hot, depending the current flow needed to operate the applications, chips, and screen.
An OLED display can get warm, even hot, when lit brightly.
An OLED screen in sunlight will get warm, even hot, even if powered off, because it appears black.
Outside, if the OLED is bright white, it still gets hot because turning on all the pixels takes power, which is expressed as photos (light) and heat.
A very compact phone, like the Flip, has little surface area to expel heat. It doesn't have a fan, so the only way the phone cools is by convection (passing heat to the surrounding air) or transferring heat to your hand or (don't try this) water.
A folded Flip has about one-half the area to dispel heat because the screen cannot effectively radiate heat to the air or your hand.
Some applications use a lot of processing power even if you think you're using them. This is why so many people on this site discuss removing and/or disabling applications.
You can check in Settings --> Battery and Device Care --> tap on Battery --> tap on the graph, and the phone will display which applications are using the batter.
It's my understanding that the processor, battery and screen all have "checks" to ensure they don't get too hot, and Android can throttle these components to prevent wearing them out, burning them out, or causing a fire.
Hopefully others will better understand some of the challenges Samsung has in creating such a unique phone.
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thx for your great reply

hyelton said:
Just general use outside/car mine gets pretty warm and screen dims. Compared to my S22 Ultra it rarely dimmed but also a bigger phone
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Click to collapse
My flip4 is up and running and no negatives so far. Just slightly warm while I was downloading over wi-fi some 15GB of my music. The overall quality of this phone is pretty good, just like my S22, but it folds to 1/2 of S22 in size. Spent several hrs setting it up and debloating, I always do these things manually. This phone is very responsive and operates smoothly.
On the side note: picking up the delivery from Bestbuy, rather than getting it to my door by Fedex, wasn't a good idea - now I have to look somewhere for an mt box for packing up and shipping my trade-in, Bestbuy just handed to me two small retail packages w/ the phone and silicone cover. They don't handle trade ins.