My HD2 backlight often auto turns off.please help!

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I've just noticed my HD2 back light completely turns off ,and it is frequent.I can only weak up it by turning off and turning on again, I assume therer some problems with the light sensor? The backlight turns off is just like when you are talking on a phone and put your phone close to your ear. Aslo, when I plug it to charge via Ac power(via usb to PC is fine), the drak orange led light is always flashing which is abnormal.

I have tired a clean boot and unplug SIM card, micro sd card, the issue is still here, I guess I have got a hardware problem? I have used it very carefully, how come it has that issue?

Any fellows here have the same issues so far?

Thanks.

Originally Posted by lovebell

I've just noticed my HD2 back light completely turns off ,and it is frequent.I can only weak up it by turning off and turning on again, I assume therer some problems with the light sensor? The backlight turns off is just like when you are talking on a phone and put your phone close to your ear. Aslo, when I plug it to charge via Ac power(via usb to PC is fine), the drak orange led light is always flashing which is abnormal.

I have tired a clean boot and unplug SIM card, micro sd card, the issue is still here, I guess I have got a hardware problem? I have used it very carefully, how come it has that issue?

Any fellows here have the same issues so far?

Thanks.

You can set up the backlighting behaviour as follows:

1. Go to: Settings tab > Sound & Display > Backlight
2. Find the entry "Dim Backlight if device is not used for"
3. Change the value to whichever duration suits you

You can set this up for when the device is unplugged or when it is on external power.

Thanks for the reply, however, it does't solve my problem, the backlight is completely turned off, theres no backlight at all, which mean you can see nothing even under completely dark condition.
Btw, this issue is gone while on charging(PC/AC).

Originally Posted by puremind

You can set up the backlighting behaviour as follows:

1. Go to: Settings tab > Sound & Display > Backlight
2. Find the entry "Dim Backlight if device is not used for"
3. Change the value to whichever duration suits you

You can set this up for when the device is unplugged or when it is on external power.

So I am the only one so far has this issue？
After a clean boot(hard reset)it still happened, some times the backlight is even turned off when it's booting up, and I cannot active the backlight by tapping the screen.The only solution is press the power off button twice.
This is really weird...
Someone please help...

After the battery fully charged, the backlight won't turn off until the power drop to 50%, the only solutions I found is keeping the coreplayer running in the background, and the coreplayer will stop "something" to turn the damn backlight off.
I guess it's hopeless to find out what the problem is, as I have used WM phones for many years and first time has such weird problem.

OK,HD2, I am giving up you.

Originally Posted by lovebell

After the battery fully charged, the backlight won't turn off until the power drop to 50%, the only solutions I found is keeping the coreplayer running in the background, and the coreplayer will stop "something" to turn the damn backlight off.
I guess it's hopeless to find out what the problem is, as I have used WM phones for many years and first time has such weird problem.

OK,HD2, I am giving up you.

The only thing I can think of is an additional program that you may have installed... hmm but after a hard reset it should work.. well i could suggest that you flash the stock ROM over the current one... I mean not HR.. but flash the ROM in active sync mode connected to the PC. Could be that your shipped ROM has some errors.. which ROM are you on? Check the wiki to download the official ROM that match yours.. download and flash over the current one...

Try this:

HKCU -> ControlPanel -> BackLight -> BatteryTimeoutUnchecked
HKCU -> ControlPanel -> BackLight -> ACTimeoutUnchecked
or
HKCU -> ControlPanel -> BackLight -> BatteryTimeoutTemp
HKCU -> ControlPanel -> BackLight -> ACTimeoutTemp

Play around with these.
It's not always helpful but sometimes

My current rom is 1.48.832.0,which is a Asian WWE rom, I can only find the Asian 1.48.832.1 ROM, but it said this rom dosen't fit my phone when at 2% progress...
I am enough with it, this issue is only disappeared when battery is full, when battery drops to about 70%, it happens again.
So I can consider this is a hardware issue after charging on a AC power, and the led is flashing during chagring .

Originally Posted by prateekgujral

The only thing I can think of is an additional program that you may have installed... hmm but after a hard reset it should work.. well i could suggest that you flash the stock ROM over the current one... I mean not HR.. but flash the ROM in active sync mode connected to the PC. Could be that your shipped ROM has some errors.. which ROM are you on? Check the wiki to download the official ROM that match yours.. download and flash over the current one...

When this issue happend at first time, I was attempting to edit the registry, however, nothing helped...

Originally Posted by Prinzessin Horst

Try this:

HKCU -> ControlPanel -> BackLight -> BatteryTimeoutUnchecked
HKCU -> ControlPanel -> BackLight -> ACTimeoutUnchecked
or
HKCU -> ControlPanel -> BackLight -> BatteryTimeoutTemp
HKCU -> ControlPanel -> BackLight -> ACTimeoutTemp

Play around with these.
It's not always helpful but sometimes

I am having a slightly different issue, but it is also related the backlight option. I have set up my phone so that the backlight should automatically turn off if not used for 1 minute (I have ticked this box in settings). Unfortunately, for some reason the box keeps getting automatically unticked, so the backlight remains on even if I am not using the device, unless I press the stand-by button. As you can imagine, this is really affecting the phone's battery life.

I don't have any major registry editor installed, except BSB tweaks (set on Low power mode) and have a stock ROM (WWE 1.66). Anyone have any ideas?