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Samsung S20 FE Overheating

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blackhawk

Senior Member
Jun 23, 2020
4,039
1,052
Thx and also the charging speed is VERY SLOW
Fast charging is enabled and I am using 15W Charger
Any way to fix this as well?
If too cold or hot fast charging will not engage.
Best start temperature is 85°F
Keep below 100°F when charging/using. Use a damp microfiber cloth and/or fan to cool.

Find apps causing the drain.
Try disabling all power management* first then get to it.
Clear system cache and system logs.
Cloud backup apps are prime suspects.
Disable Google play Services when not needed.
Do a factory reset if you updated the OS version or if you used Smart Switch to transfer data/settings from a different phone.

*can cause excessive battery consumption and erratic behavior.
 
Last edited:
If too cold or hot fast charging will not engage.
Best start temperature is 85°F
Keep below 100°F when charging/using. Use a damp microfiber cloth and/or fan to cool.

Find apps causing the drain.
Try disabling all power management* first then get to it.
Clear system cache and system logs.
Cloud backup apps are prime suspects.
Disable Google play Services when not needed.
Do a factory reset if you updated the OS version or if you used Smart Switch to transfer data/settings from a different phone.

*can cause excessive battery consumption and erratic behavior.
Ty :)
 

blackhawk

Senior Member
Jun 23, 2020
4,039
1,052
Find the apks that are spiking it... don't kill the messenger.
Some apks like Google play Services poll the internet 2, 3 times a minute, every minute.
 

3mel

Senior Member
Aug 23, 2012
1,129
286
London
Find the apks that are spiking it... don't kill the messenger.
Some apks like Google play Services poll the internet 2, 3 times a minute, every minute.
it's not really an app thing it's an Exynos 990 thing, over on reddit almost every single user reports terrible SOT and extreme heat even on mundane usage. Samsung discontinued the 4G version with the 990 but played it off as being related to a silicon shortage.
 
Last edited:
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blackhawk

Senior Member
Jun 23, 2020
4,039
1,052
it's note really an app thing it's an Exynos 990 thing, over on reddit almost every single reports terrible SOT and extreme heat even on mundane usage. Samsung discontinued the 4G version with the 990 but played it off as being related to a silicon shortage.
My Snapdragon variant was a hot running battery hog at first. So I'm not convinced it's hopeless.
There are also 2 heatsink variants that may have been used. The 990's perfomance score is only slightly less than the Snapdragon.

The fact that it's spiking the cpu usage points to a software issue. Even if the faster cores are online for only seconds each minute it will drive up the temperature/battery usage substantially.
That will cause these symptoms and it's common on all the Note 10+ variants and other Samsung models as well.

Disable all power management, it's a known trouble maker.
Track down the apks causing this one by one, and deal with them on a case by case basis.
There are likely quit a few and many aren't needed or used.
 
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3mel

Senior Member
Aug 23, 2012
1,129
286
London
people were getting 3.5/4 hrs SOT from a 4500mAh battery and heat that made it uncomfortable to hold. Samsung took several runs at fixing it and achieved nothing then discontinued it. if it was only a high level software issue that's a comparatively easy fix for an OEM.

one guy uploaded graphs for his cores and the 2 big power cores ramped up to max and just stayed there. seriously poke your head into r/GalaxyS20FE and have a look at posts about the Exynos or Exytoast as some call it.
 
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blackhawk

Senior Member
Jun 23, 2020
4,039
1,052
people were getting 3.5/4 hrs SOT from a 4500mAh battery and heat that made it uncomfortable to hold. Samsung took several runs at fixing it and achieved nothing then discontinued it. if it was only a high level software issue that's a comparatively easy fix for an OEM.

one guy uploaded graphs for his cores and the 2 big power cores ramped up to max and just stayed there. seriously poke your head into r/GalaxyS20FE and have a look at posts about the Exynos or Exytoast as some call it.
Um, don't think I'll get the Exynos variant if I get another N10+... you're right it seems to have flaming reviews.
 
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    If too cold or hot fast charging will not engage.
    Best start temperature is 85°F
    Keep below 100°F when charging/using. Use a damp microfiber cloth and/or fan to cool.

    Find apps causing the drain.
    Try disabling all power management* first then get to it.
    Clear system cache and system logs.
    Cloud backup apps are prime suspects.
    Disable Google play Services when not needed.
    Do a factory reset if you updated the OS version or if you used Smart Switch to transfer data/settings from a different phone.

    *can cause excessive battery consumption and erratic behavior.
    Ty :)
    2
    Hello!
    I have a question: what is mongoose cores and what happens if I disable it via root?
    they're the 2 most powerful cores on your chip, some believe they are the reason for the heat.
    1
    Find the apks that are spiking it... don't kill the messenger.
    Some apks like Google play Services poll the internet 2, 3 times a minute, every minute.
    it's not really an app thing it's an Exynos 990 thing, over on reddit almost every single user reports terrible SOT and extreme heat even on mundane usage. Samsung discontinued the 4G version with the 990 but played it off as being related to a silicon shortage.
    1
    it's note really an app thing it's an Exynos 990 thing, over on reddit almost every single reports terrible SOT and extreme heat even on mundane usage. Samsung discontinued the 4G version with the 990 but played it off as being related to a silicon shortage.
    My Snapdragon variant was a hot running battery hog at first. So I'm not convinced it's hopeless.
    There are also 2 heatsink variants that may have been used. The 990's perfomance score is only slightly less than the Snapdragon.

    The fact that it's spiking the cpu usage points to a software issue. Even if the faster cores are online for only seconds each minute it will drive up the temperature/battery usage substantially.
    That will cause these symptoms and it's common on all the Note 10+ variants and other Samsung models as well.

    Disable all power management, it's a known trouble maker.
    Track down the apks causing this one by one, and deal with them on a case by case basis.
    There are likely quit a few and many aren't needed or used.
    1
    people were getting 3.5/4 hrs SOT from a 4500mAh battery and heat that made it uncomfortable to hold. Samsung took several runs at fixing it and achieved nothing then discontinued it. if it was only a high level software issue that's a comparatively easy fix for an OEM.

    one guy uploaded graphs for his cores and the 2 big power cores ramped up to max and just stayed there. seriously poke your head into r/GalaxyS20FE and have a look at posts about the Exynos or Exytoast as some call it.