Random black screen of death - Thunderbolt General

I keep.getting this random black screen where my phone won't turn on or wake all that I can do is pull the battery Nd then reboot is anyone else experiencing this?
sent from my blazing BAMFD tbolt

You may have an issue with your low clock speed being too low to come up out of sleep. Increase from 248 to next highest.

I will try that
sent from my blazing BAMFD tbolt

Same here but if i plug it in to power, i get the screen back. I'm hoping to try the cpu speed now :0
Sent from my SCH-I800 using Tapatalk

Mine was doing that at being underclocked too low keep it at say, 368 mine never did it again, also don't undervolt too much it can cause phone to power down.
Sent from my ADR6400L using XDA App

Related

Wake from sleep and reboot issues work around.

So my phone would constantly either cut off or not wake up (not sure which) if I left it idle for a few minutes. The only way to get it going again was to pull the battery then power it back on. It seemed like a lot of people were having this issue so I started playing around to see how I might fix it. I used Set CPU and turned up the minimum clock speed from 212 mhz to 312 mhz. It's been a couple of hours now and it seems to be working fine, with little noticeable effect on battery life. Hope this helps.
that happened to me today. It was my first time running juice defender and set cpu on screen off to 216/312.
No more of that for me... Ill start shutting off connections myself to save battery.
Sent from my LG-P999 using XDA Premium App
I had the opposite happen. setcpu was causing me to get the sleep of death and reboot loops until I disabled it.

What temperature should be considered as too hot?

Hello!
I just installed Titan Kernel (over ThiaiZO3D V2.7.1) and i'm feeling my O3D a little more hot than usual.
The temperature now is 36.8 c / 98.2 f.
Sometimes it gets to 40 c +.
What is the normal temperature for this cellphone?
Thanks a lot!
I m having 26c now.
Sent from my LG P-920 using ghost call method...
without using the phone too much mine usually is below 30ºc (rushdroid @ 1.2ghz), currently it's at 25.6ºc . but i've seen it go high as 42ºc but usually only when gaming...
Dont worry about it. The phone will shut off when it gets too hot.
Sent from my LG-P920 using xda premium
I've seen mine reach up to 42 c when gaming. When idle, it should be around 26 c. Light - Medium use can get up to 36 c.
The max temp I've had is about 46 whilst charging and gaming with the cpu maxed at 1.4ghz with apps in background and i coudnt get it any higher, tried too though.
Btw that is only battery temp anyway isn't it, the cpu may be a bit cooler.
Alright guys, thanks a lot! I was almost going back to the normal kernel because I thought the phone was overheating, no I would just forget about it as long it doesn't get too hot.
Sent from my LG-P920 using xda premium
Just remember that even if your phone runs fine at a higher temperature, it will reduce the life of what ever is running at a high temp.

Battery Temperature problem

I've been having some problems with my battery temperature...
Usually when I'm not using my phone the temperature stays around 27C. But when I use a small app like messaging for a minute or so it shoots up to about 35C or more.
Another thing is that when I keep my phone for charging it's temperature rises upto 55C or more. Once it went to 60C.
Is this normal or is my battery faulty?
Btw for the battery stats I use Minimalist Text.
I'm on the MIUI ROM by TheFrankenstain. Overclocked to 1.2ghz.
Any input will be helpful. Thanks.
Sent from my GT-I9003 using XDA
My battery goes up to 55 degrees during charge .. That and the other temperature's are fine.. But touching 60 is abnormal..
Heavy usage during charge is not recommended, and specially with overclock will screw up ur device..
ammar786 said:
I've been having some problems with my battery temperature...
Usually when I'm not using my phone the temperature stays around 27C. But when I use a small app like messaging for a minute or so it shoots up to about 35C or more.
Another thing is that when I keep my phone for charging it's temperature rises upto 55C or more. Once it went to 60C.
Is this normal or is my battery faulty?
Btw for the battery stats I use Minimalist Text.
I'm on the MIUI ROM by TheFrankenstain. Overclocked to 1.2ghz.
Any input will be helpful. Thanks.
Sent from my GT-I9003 using XDA
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Click to collapse
Dont set phone freq to 1.2 ghz always. While charging keep max freq to 800 mhz & min 300 mhz.
Charge, overclock & play an online game over wifi all at the same time and you'll fry your phone dude...
Sent from my GT-I9003 using xda premium
ammar786 said:
I've been having some problems with my battery temperature...
Usually when I'm not using my phone the temperature stays around 27C. But when I use a small app like messaging for a minute or so it shoots up to about 35C or more.
Another thing is that when I keep my phone for charging it's temperature rises upto 55C or more. Once it went to 60C.
Is this normal or is my battery faulty?
Btw for the battery stats I use Minimalist Text.
I'm on the MIUI ROM by TheFrankenstain. Overclocked to 1.2ghz.
Any input will be helpful. Thanks.
Sent from my GT-I9003 using XDA
Click to expand...
Click to collapse
When your phone is not in use and not charging: around 33C and below is completely normal.
When your phone is in charge but not in use: around 40C and below is normal.
When your phone is in use but not charging: then 40C and below is normal depending on what you're running. it may go up to 45C depending on your kernel and max CPU frequency and also how heavily an app consumes resources e.g high graphic games (it also depends on the weather ).
In Summary: 35C and below is completely normal when NOT in use, 45C and below is normal when in use, 50C+ is quiet dangerous in any condition especially when not in use, 60C + Immediately stop using your phone and you'll wanna head to the freezer fast and change your battery or phone.
Always remember: NEVER use you phone while charging.
Ok thanks for the replies... I'll keep the things in mind.
Sent from my GT-I9003 using XDA
vishal24387 said:
Dont set phone freq to 1.2 ghz always. While charging keep max freq to 800 mhz & min 300 mhz.
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Click to collapse
Actually it got automatically Overclocked when I flashed the MIUI ROM. Any Overclocking app was not installed, so I installed setcpu to make profiles for charging. But problems started to occur after that. So I uninstalled it and those problems disappeared. Well I checked with an app. It remains on 1.2ghz only 14%.
Maybe the temperature is due to the summer. 33C outside.
Anyways I've come up with my own way to keep my phone cool. I place it on a wet cloth. And that does help.
Sent from my GT-I9003 using XDA
ammar786 said:
Actually it got automatically Overclocked when I flashed the MIUI ROM. Any Overclocking app was not installed, so I installed setcpu to make profiles for charging. But problems started to occur after that. So I uninstalled it and those problems disappeared. Well I checked with an app. It remains on 1.2ghz only 14%.
Maybe the temperature is due to the summer. 33C outside.
Anyways I've come up with my own way to keep my phone cool. I place it on a wet cloth. And that does help.
Sent from my GT-I9003 using XDA
Click to expand...
Click to collapse
just go easy on the overclocking thing, it might fry your phone you can also try opening the back cover while it charge it's what i do sometimes when my s2 goes reeeally warm -.-
saywhatt said:
just go easy on the overclocking thing, it might fry your phone you can also try opening the back cover while it charge it's what i do sometimes when my s2 goes reeeally warm -.-
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Click to collapse
Hmmm... Sure...
Sent from my GT-I9003 using XDA
ammar786 said:
Anyways I've come up with my own way to keep my phone cool. I place it on a wet cloth. And that does help.
Sent from my GT-I9003 using XDA
Click to expand...
Click to collapse
Dude careful... U don't want the water to vaporize and get into ur phone and cause worse problems..
ammar786 said:
Actually it got automatically Overclocked when I flashed the MIUI ROM. Any Overclocking app was not installed, so I installed setcpu to make profiles for charging. But problems started to occur after that. So I uninstalled it and those problems disappeared. Well I checked with an app. It remains on 1.2ghz only 14%.
Maybe the temperature is due to the summer. 33C outside.
Anyways I've come up with my own way to keep my phone cool. I place it on a wet cloth. And that does help.
Sent from my GT-I9003 using XDA
Click to expand...
Click to collapse
only 33c temp??? In my city solapur its 42c temp but my phone temp remains cool
Anyways I've come up with my own way to keep my phone cool. I place it on a wet cloth. And that does help.
Sent from my GT-I9003 using XDA
Click to expand...
Click to collapse
O.M.G, are you out of your mind? Dude!
Never ever ever ever ever (infinity ever's) put your phone NEAR water, not even ON it! water, or a cloth with water, whatever! just don't do it!
And.. just sayin' since you just did put it on a cloth with water, don't put it in the freezer! /sarcasm
Seriously dude, don't do it.
Skander1998 said:
O.M.G, are you out of your mind? Dude!
Never ever ever ever ever (infinity ever's) put your phone NEAR water, not even ON it! water, or a cloth with water, whatever! just don't do it!
And.. just sayin' since you just did put it on a cloth with water, don't put it in the freezer! /sarcasm
Seriously dude, don't do it.
Click to expand...
Click to collapse
Ok. But i don't keep the cloth that much wet. Anyways it was due to the overclocking. I flashed the stock rom back and everything was back to normal. Except one little thing. Well that thing needs another thread. I'll not discuss it here.
I'm having the same problem. Just this morning, I was charging my phone and left it under my pillow. I wasn't even using it and when I came back to check my emails it was hella hot! My phone usually gets hot when I'm using it heavily and even more when I'm charging + playing games but this morning was different. I almost thought it's dead lol. I was running cm7. now I'm using miui GB based, phone still overheats but not like before.
Sent from my GT-I9003 using xda premium
Custom rom/kernel is main reason of overheating and others misunderstoods. Keep that in mind :thumbup:
Sent from my GT-I9003

Problem Solved

My phone is starting to do little blinks its not going screen on/off but just keeps blinking does anyone know what I'm talking about please help me.
Sent from my myTouch 4G Slide using xda premium
Are you still running it at 1.7ghz high and low by any chance? While running at that speed, did your phone get really hot for a fairly long period? When you noticed how much hotter it was running did you back your speed off or maybe even pull the battery for a while? Excessive heat in a tightly closed box with no cooling fan is a CPU's biggest enemy ya know.

Heat issue ,is this normal?

I am running cm9(beast mode wifi calling one ) atm but I have a heat issue with my phone around the camera and speaker area where the phone is really hot but by the battery n bottom half it is much cooler.
is this normal for you guys? N gals? And even if I turn of the phone n it cools to 91 is shoot back up again
Sent from my SGH-T959V using xda app-developers app
I'm running on demand btw and around of charge 98-113 charging 109-123
Sent from my SGH-T959V using xda app-developers app
idunno why but we have the same problem..
i think that the reason why it heat up is because you overclocking it?
when i set it max it really heat up quickly.
Install betterbatterystats and see how much CPU you are using and on what.
Sent from my SGH-T959V using xda premium
Sometimes I have this problem while charging my phone, it actually will not charge at all through the night. I think this happens when it is warm, because in the summer, the phone overheats in my pocket and dies out
dgmoodey said:
Sometimes I have this problem while charging my phone, it actually will not charge at all through the night. I think this happens when it is warm, because in the summer, the phone overheats in my pocket and dies out
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i do that but it goes to 200 mhz never 100
xtrem88 said:
i do that but it goes to 200 mhz never 100
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Click to collapse
That's a 'feature' of the ICS+ kernels. While 100MHZ is the minimum, if it's actually set to that, the kernel is set to go back to 200MHZ anytime it gets the chance. You can watch this happen if your scheduler/governor app actually updates on current min/max speeds. ROM Toolbox PRO, SetCPU, ROM Control, and CM's Performance controls all display this shifting, though with luck you can sometimes get it to stick at 100MHZ. It just takes some persistence.
The modem on the phone isn't very good.
It even happens on stock where if you go in and out of dead zones, it will "SEARCH" for network and become burning hot, so it's a common problem that happens year round. It's a great way to kill battery. That's also why if you leave you phone in a sock drawer, it's going to last longer than if it's in your pocket walking around.
airfluip1 said:
The modem on the phone isn't very good.
It even happens on stock where if you go in and out of dead zones, it will "SEARCH" for network and become burning hot, so it's a common problem that happens year round. It's a great way to kill battery. That's also why if you leave you phone in a sock drawer, it's going to last longer than if it's in your pocket walking around.
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well i left i think it was kj2 and flashed lb6 and i started using greenify hasn't really happened now
No to open another thread I have a Android backup issue any suggestions?
And power managed is on even though wifi is off
Sent from my SGH-T959V using xda app-developers app
I never got my phone to go into deep sleep when I selected ondemand (or maybe it was ondemandx). I would try a couple of the other governors & see if that would help.
Sent from my SAMSUNG-SGH-I547 using xda app-developers app
OndemandX gives me good sleep, but forces the phone to minimum speeds when the screen is off. That tends to cause issues if I'm trying to use GPS or music without the screen burning.
As to what will work best... that depends on unique your phone, its apps, any tweaks that have been made, and your specific combination of scheduler/governor settings. I'm a fan of SIO, but sometimes the tweaks make that (and deadline) stick at max MHZ, in which case noop is great. At various times, I go with any of the SA2-based 'intelligent' options (SavagedZen, brazilianwax, SmoothAss, or SmartAssv2) or the OndemandX/Conservative basic sets. The others have gotten stuck more often and tended to allocate more processor than I think it needs.
I've always had the best luck with smartassv2. I think it's a good tradeoff between good battery life and quick processor speedups in order to prevent lag, plus I haven't had the issue of the processor locking up while the screen is off.
FBis251 said:
I've always had the best luck with smartassv2. I think it's a good tradeoff between good battery life and quick processor speedups in order to prevent lag, plus I haven't had the issue of the processor locking up while the screen is off.
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That's usually the one I always fall back on too despite new ones all the time and everything, it's my default now on any ROM.

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