Backlight dims, power button doesn't work properly... - Touch 3G General

I have had the Touch 3G for nearly a year now and for the last 3 months I have had this recurring problem which is fixed with a hard reset but will recur again after about 6 weeks. The symptoms are:
1. When turning on, the backlight dims just before the HTC flash screen and startup sound (when it says "Smart Mobility")
2. Touching the screen doesn't bring the backlight back on.
3. Pressing the power button doesn't turn the screen off from this dimmed state, but after pressing touching the screen will turn the backlight back on.
4. Pressing the power button again will now turn off the screen, but pressing it again won't turn the screen back on! If I call it from another phone, the vibrator goes on but it doesn't ring, the screen stays off and you can't answer the call. If you hang up on the other phone it keeps vibrating and you need to do a soft reset to stop it.
If I do a hard reset the symptoms are gone and reinstalling the exact same software doesn't cause the problems immediately but withing a month or so it happens again. All I did just prior to these problems was use TomTom a bit more than usual, but otherwise nothing different. I have used TaskManager to see if there is anything weird running in the background but it all looks fine. I have had a cursory look through the registry but also can't find anything?
Any advice would be appreciated.

pdiaz said:
I have had the Touch 3G for nearly a year now and for the last 3 months I have had this recurring problem which is fixed with a hard reset but will recur again after about 6 weeks. The symptoms are:
1. When turning on, the backlight dims just before the HTC flash screen and startup sound (when it says "Smart Mobility")
2. Touching the screen doesn't bring the backlight back on.
3. Pressing the power button doesn't turn the screen off from this dimmed state, but after pressing touching the screen will turn the backlight back on.
4. Pressing the power button again will now turn off the screen, but pressing it again won't turn the screen back on! If I call it from another phone, the vibrator goes on but it doesn't ring, the screen stays off and you can't answer the call. If you hang up on the other phone it keeps vibrating and you need to do a soft reset to stop it.
If I do a hard reset the symptoms are gone and reinstalling the exact same software doesn't cause the problems immediately but withing a month or so it happens again. All I did just prior to these problems was use TomTom a bit more than usual, but otherwise nothing different. I have used TaskManager to see if there is anything weird running in the background but it all looks fine. I have had a cursory look through the registry but also can't find anything?
Any advice would be appreciated.
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Click to collapse
Sounds like it's going all haywire. If you've had it less than a year, I'd send it in real quick. Sounds more like a hardware problem.

I don't think it is hardware as a hard reset fixes it...it just recurs down the track. I have done a hardrest and reinstalled all my apps and it is working great again but I was wondering if I should be checking somewhere in the registry for an aberrant setting. I am u using a backup image program so at least when it happen again I an restore my system more simply.

But then again, all the symptoms you mentioned point to a hardware defect. You could try to find a tweak, but like all electronic devices, it's the luck of the draw. Try emailing HTC and see what they say.

Related

Strange problem please help!! 8125 Backlight screen

For some unknown reason after I press the power button to bring the phone back out of standby the screen is defaulting to the power save setting for the backlight (which means no backlight/dark screen) I have to goto the brightness setting under backlight and slide the bar back to the middle in order to light the screen. It never did this before and I did not change anything. It would just come back on tho the normal backlight setting (in the middle of the bar). If anyone knows why this would happen or if there is a setting in the reg I can do. Please help as I really do not want to do a hard reset and reload everything. I did do a soft reset, but it did not do anything.
Wish I could help. I have had that happen several times. Sometimes it clears itself up, last time I had to hard reset. I never did figure out what caused it...
Try searching, I know others have had the issue, too.

At times Backlight doesnt light up again - why?

Perhaps someone has an explanation why my backlight doesnt light up again when a button is pressed?
From time to time, the backlight goes dark and even though I am pressing buttons, screen, power button, etc, the backlight doesnt come back on. I have to search for the backlight adjuster (in the dark) in order to switch the light back on.
I have wisbar advanced and SpbPocketPlus installed - might that effect this somehow??
Thanks for any advice!
i have exactly the same problem and donĀ“t know a solution. ;-(
Wisbar Advance 2.6.0.1 is installed, SpbPocketPlus not.
I think it comes more often if i use the camera, but it is not reproduceable...
I've never had this problem before, I dont have wisbar installed.
You may be doing a press and hold function on your device. Quick press of the power turns it off, a long press turns off the backlight. the only way to turn it back on is to long press the power button.
also you have settings that turns the back light screen off, which may be affecting this.
This problem used to occur on the O2 XDA2i ALL THE TIME!
Just my 2 cents. Sorry, not very helpful, but defo a problem we've seen before. You hvae to go into settings to start the backlight back up.
Squuiid said:
This problem used to occur on the O2 XDA2i ALL THE TIME!
Just my 2 cents. Sorry, not very helpful, but defo a problem we've seen before. You hvae to go into settings to start the backlight back up.
Click to expand...
Click to collapse
It hasnt happened lately (actually ever I posted this thread strangely enough) but its quite embarrassing when you have to find your way through a dark screen.
I put a large symbol of the brightness adjuster in one corner (using SpbPocketPlus), so I only have to find that symbol rather then start --> settings --> etc..... its not a cure but it makes it easier switching it back on.
If anyone has a remedy for this problem, please share...
Not sure why this happens, but I fixed it using...
http://www.ppc-welt.info/community/showpost.php?p=728080&postcount=27
This app - run on your prophet, and all is back to normal. Keep a copy on your SD card...
--Tosh
didn't help
I tried and still use the neo backlight fix. But this fix is only for forcing via startup a longer measured time for the light to stay on.
I too have suffered with the problem of the backlight not coming on every now and again after starting up the prophet. I've had this problem on numerous roms too which is interesting. What more interesting is that even in the days of my owning a Blue Angel (Orange M2000, MDA) I STILL remember having this intermittent problem with the light not always coming on. Only way I fixed it was to simply soft reset the device. Whenever I did that and when I do it now, it stops it happening for week or so at least.
I still use the neo back light fix too as my phone has the quick light turn off problem without it. Neo certainly created a good fix no mistaking.
All the best
Nicholas
i had the same problem...just put the same value to the standby and backlight ...( both 3 mins on mine)...and never happened again....i think it helps...
I have a strange backlight & power-off problem on my Qtek S200:
When the backlight is switched on and I press the Power button shortly to switch it to sleep mode, the screen gets blank but the backlight does not go off.
So now I wait first when the backlight timer goes off before switching the device to sleep mode manually.
Another problem:
When the power settings is set to switch the device off automatically, it reboots when the timer goes off. So my solution is to disable the auto power-off feature.
How to fix this to the original behaviour ?
I tried the neo_backlight_fix and set the backlight timeout to the same value as the standby timeout, but with no avail.
My Qtek S200 has still the original old ROM (G4 model) and Windows Mobile 5.0:
ROM version info:
IPL: 2.10.001
SPL: 2.10.001
GSM: 02.07.20
OS: 2.10.7.25
Please help me to solve the problem.
Maybe I messed up a lot and the only solution is to install a newer ROM which is available since some time at qtek.nl.
Thanks in advance.

[Q] Random Screen shut off with keys backlight on

All right I was wondering if anyone could give me any inside info im having with my HD2, from T-Mobile ok.
Well I notice that sometimes the screen will go into idle and go off, but I will press any of the keys, like the end call or green call button or home or back and the backlight of those keys will come on but my screen will stay dead. The only fix I have found so far is just taking off back cover and removing battery and starting phone back up or by doing a soft reset but then eventually it will happen again. I searched for this but to no luck. Any help or suggestions?
Also will do it on a Stock ROM or a WM Custom ROM

Screen Turning on delay !!!!

Rom: Olyfr sbf upgraded to 4.1.5.7 from 4.1.2.6 via OTA
Not rooted
I have not yet modified the power button.
'Cause I set up the fingerprint unlock,Im used to swiping my finger after press the power button.
after pending or standing by a while(maybe),It vibrates once after my unlocking through scanning fingerprint.But!!!! The screen is still black!!!
Meanwhile,touching the four buttons on the bottom,it still vibrates!
And waiting for seconds,Screen on~~~~~
Symptoms sound a lot like my Bell Vibrant before it died after the Froyo upgrade.
Have you tried resetting your phone yet?...
Okay,I have flash it to 4.157sbf,and temporarily nothing goes wrong
I have the same symptoms. Sometimes when I push the power button it takes 3-5 seconds or more for the screen to light up. I did a power off and on and it works better. Not sure what is causing this but it is annoying.
I've had this on.both my atrixes and it seems to.resolve itself as the phone gets older
Sent From My Gibgerblurred Phone
I have had the same issue on mine. It occurs intermittently. Not always, but sometimes. And when the screen is turned off, I push the power button and nothing happens for about 3-5 seconds. Sometimes longer.
I do also have the fingerprint security feature on, though I am not sure if that that has something to do with it. However there is another problem with the fingerprint security.
Sometimes I want to check the time so I just turn on my screen and quickly turn it back off. But the screen turns right back on cuz it recognized my click as a fingerprint. However since it is too short to be recognized, it just turns my screen back on and says to try again. I try to turn the screen off again and the same thing. This also happens on occasions.
They need to make the power button better so that ways it does not recognize a screen turn off as a fingerprint swipe.
I have had similar problems. Rebooting has usually fixed them, at least for a while

Screen blank on power on

I've had a problem with my E900 since I got it with regards to the screen. I was hoping Mango might fix it but it doesn't seem to have.
Sometimes if I press the power button the screen backlight comes on (i.e. screen goes from off state to powered) but there is nothing on the screen. No amount of button pressing will cause the screen to show anything.
If this happens I have to turn the device off again (backlight then goes off) and try again. Sometimes it can take 2-3 times before it turns on successfully with the lock screen.
I also have this if an incoming call attempts to wake the phone and also alarms too.
Does anyone else have this issue?
I confirm this one popping sometimes. Not that often that it becomes annoying, but nevertheless.
Did you find a solution to this problem? I am experiencing it too and it is very annoying!
I've recently inherited one as well (E900 that is).
The one I have has been dropped, the backlight powers, but no drawing on the screen.
I've disassembled and re plugged everything (bugger stripping down!) but still no luck. I've done a VolUp+Down+Cam+power hard reset, and when I plug into PC Zune says setup needs completing (so it has reformatted) but still no luck.
I cant see anything fried, and no damaged ribbons as far as I can see, any ideas?
I sold the phone a while ago, and never solved the problem. I think it's a firmware issue.
PaulMdx said:
I've had a problem with my E900 since I got it with regards to the screen. I was hoping Mango might fix it but it doesn't seem to have.
Sometimes if I press the power button the screen backlight comes on (i.e. screen goes from off state to powered) but there is nothing on the screen. No amount of button pressing will cause the screen to show anything.
If this happens I have to turn the device off again (backlight then goes off) and try again. Sometimes it can take 2-3 times before it turns on successfully with the lock screen.
I also have this if an incoming call attempts to wake the phone and also alarms too.
Does anyone else have this issue?
Click to expand...
Click to collapse
hi.
What do you mean "somethimes if I press power button"?
Is it pressed with purpose to lock the phone, press it to turn off phone (background slider shows to power off - on Mango and beyond version) or press it accidentally?
Cheers.
So, I did a phone reset. Unfortunately the issue is still present!
Sometimes when I press the power button to unlock the phone the screen is lit, but stays blank i.e. no lockscreen wallpaper, no nothing. The same happens sometimes when I get a phone call - the phone rings and vibrates, the screen is lit but stays blank.
When this happens I have to press the power button to put the phone into sleep mode and press it again to wake it up.
What I found is, when the issue occurs the screen is actually responsive. For example I can slid up and unlock the phone then I hear the unlock "pop" sound. It's just that nothing is drawn on it!
I was wondering if anyone else experienced the same behavior and found a resolution. Also I am not sure if this is a software or a hardware problem. If I could confirm it was a hardware problem I would call LG and have the phone repaired or replaced.
i have exactly the same issue as you, it gets really annoying.
i heard from someone online that the only way to resolve it is to replace the motherboard
billybrown said:
i have exactly the same issue as you, it gets really annoying.
i heard from someone online that the only way to resolve it is to replace the motherboard
Click to expand...
Click to collapse
I am pretty certain this is a hardware issue. I am calling LG tomorrow and hopefully they'll take the phone for repair/replacement.
I sent my phone for repair. Today I got it back, and guess what?!
The issue is still present! It seems, they "couldn't reproduce" or something.
What should I do now?
EDIT: If anyone is interested, here is a video I just captured which clearly demonstrates the problem. http://youtu.be/38kF9RYs_bU
I'm sending the phone back for repair tomorrow with this video attached.
Hey, might not be an issue at all, but in the video, I saw that the two times you were able to get it to go blank you had your finger on or near the proximity sensor. I wonder if there is something that could be the trigger.
Just wondering if you can duplicated it or cause it only when you have the proximity sensor blocked, or if it truely is random.
You are right, it might has something to do with the proximity/light sensor.
On the other hand, this issue occurs even on incoming calls when the phone is placed on a table, screen up and nothing around the sensor.
Today, I visited my local carrier shop and left the phone for repair again. They told me, since this is a second claim they'll run it through the process faster, so I expect to get it back next week.
Will post an update.
UPDATE: My phone was replaced. Yesterday I got a brand new unit, yeah! It was stock wp 7.0. I plugged in my sim and used the phone the whole day, no sign of blank screen issues. Last nigh I installed all the updates (total 5 I think) up to OS 7.10.8107.79, FW 1.0.16.10. Guess what?! Same issue!
I am crushed

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