[YU Yuphoria] Antinatalist:
Hi, If you use yuphoria in a non-ac environment in India in summer where outside temperature is easily between 35-40 degree Celsius, your ear and nearby head area start hurting. Its a very dangerous, as it can cause permanent damage to ears or head.

Now before anyone say, common its a smartphone, it will heat up in such temperature, its normal, I would like to inform you, when I use my father's moto E3 power in same environment I don't feel any heat.

So obviously there is some problem with Yuphoria. consider this, your phone is sitting ideal from past one hours, a call comes, you pic the call, talk for 15 minutes and then you can feel that the screen is warm in the top right corner. you are not playing any game, doing nothing which involves heavy cpu processing, you are just taking a call for 15 minutes.

You should not feel any discomfort by doing this if mobile is Ok, as proved by moto E3 power. So something is seriously wrong with yuphoria.

So I tried to search the net to know the reason why yuphoria is overheating and came across useless advice, like stop the running processes , use different charger etc (I mean basic stuffs), but my question was still unanswered , why motoE3 power is cool even if other apps are running and yuphoria is not.

In my experiment I came across one very interesting observation which is not discussed anywhere, so here I am presenting the real cause of yuphoria's heating problem.

If we see the cpu usage using CPU-Z app in moto E3 power when no other application is running, we can find that its 201 MHz for single core most of the time. This I have checked in moto E3 power having stock ROM and data connection off. I am attaching here screenshot.

https://ibb.co/ddCmLF

If we do the same thing with Yuphoria , it never goes below 800 MHz. here are the screenshots of Yuphoria CPU usage and governors selected

https://ibb.co/bUJyZa

here is the governors

https://ibb.co/iCJXua

So obviously Yupohria CPU is always running at higher frequency than Moto E3power .

FURTHER MOTO E3 POWER HAS METAL PLATS ATTACHED TO PROCESSOR TO ACT AS HEAT SINK. you can check out the disassembling video of yuphoria and moto e3 power on youtube to see that moto e3 power has heat sink whereas yuphoria doesn't have it.

Moto E3 power is using mediatek processor which produces less heat and also the highest frequency of Moto E3 Power is less, still they included a heat sink in moto e3 power.

yuphoria is using more heat producing snapdragon 410 processor, still the engineers have not included heat sink. why yuphoria ? why?

I experimented by setting minimum cpu frequncy to 200 MHz and using powersave governor and found that now I can take calls without any heating issue. Remember still in this case yuphoria is using 3 cores with 200 Mhz frequency where as moto e3 power is using only one core with 201 MHz.

now I understand that moto E3 power is running on stock and my yuphoria is running on RR Rom, but I used to feel same heating problem even when my mobile was on original cyanogen ROM, so I think this problem of processor not going below 800 MHz is present even in original cyanogen ROM of yuphoria.

Now I want to know from all the technical experts here, why yuphoria's cpu is not going below 800 Mhz even when no other app is running. Is it the limitation of snapdragon 410 processor and nothing can be done about it, or it depends upon kernel and flashing another kernel or ROM will solve the issue.

obviously we don't want to use powersave governor with 200 MHz setting, otherwise what's the point of buying a 1.21 Ghz processor mobile. We want it to use minimum frequency that 200 single core when no other application is running and using higher frequency only when required like moto E3 power.

Is it possible? If yes , how?

I am also curious to know why they decided to not include heat sink in yuphoria?