What are doing when the temperatures rising? It cant be rising all the sudden while it's on idle. And how high is the temperatures? I'm on test right now for four hours non-stop already with my phone screen ON and phone charger also ON. My temperatures now is 46C :-P
My firmware XXKG1.

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Added on August 23, 2011, 2:14 am08pm - 02am. 6 hours non-stop. Both cores scores 252.
Temperatures up to 50C now. Yay., so far so good :-P

What are doing when the temperatures rising? It cant be rising all the sudden while it's on idle. And how high is the temperatures? I'm on test right now for four hours non-stop already with my phone screen ON and phone charger also ON. My temperatures now is 46C :-P
My firmware XXKG1.

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Added on August 23, 2011, 2:14 am08pm - 02am. 6 hours non-stop. Both cores scores 252.
Temperatures up to 50C now. Yay., so far so good :-P

i think it will be able to read chinese word for that version.

I asked whether you still on stock rom OR custom rom now.? Not whether you're rooted or not..:-P.
The reason i ask is because
1) Some custom rom can make your phone rebooting out of nothing at all if you flash the wrong way (dont be suprise)
2) Some custom rom have bug that keep certain apps force closed. If this app keep on opening and closing then your phone will start feel warm and rebooting.

If you only root but still on stock rom then i suggest
1) you start looking which app/files that can interupt your phone system.
2) Or you in any way had wrongly uninstall certain important phone system app can also lead to this problem.
3) Try to change your telco sim card and see if this problem recur.
4) If you had any casing on your phone, try not use it. Some casing especially the one that cover your on/off button can cause it.
5) Do hard/factory reset.
6) Bring your phone to service centre for checkup.
XXKG is europe version but no chinese language. (got one that look like chinese but i think it's kind of japanese or some sort)
You can try download Google PinYin from market OR flash Hong Kong (not China.!!) firmware to get chinese language.

If you want to flash stock rom with chinese language, go for Hong Kong version not the europe one.

Not much different between 2.3.3 and 2.3.4. If you want better then wait for 2.3.5.!!
What did you do with your phone for it to achive that temperatures.??

It doesn't matter which firmware you use. Your phone will still release heat as long as you use it. No firmware can make your phone 'cold'. ~~ duhh ~~
P/S - Yes any firmware is okay to be flash except China one.

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Added on August 23, 2011, 8:29 pm

~~@ xDarkKnightx

I thought you're a stout HTC fan.? :-P
Doesn't matter. Warm welcome to the big family dude :-)

No its not normal for your phone to have 50C while in idle.
Normal phone temperatures while idle is below 30C. For charging it go up to 35C while playing games can go above 40C. And your phone can sustain around 50C without problems.
But having 50C while idle.? Better bring your phone to service centre for checkup. No need to flash anything :-P

but if u change within 1st week
then it becomes one to one exchange wor ...
sure u wanna wait ?

Up to you my friend. The phone is yours to do whatever you like as you wish. It seems you have set your mind on flashing already so there is no point to prolong this issue.
Good luck in your flashing :-)