Take our customer survey to evaluate your visit.
It should only take a few minutes to answer five quick questions. Just click the Launch survey button at the end of your visit to begin.
2011-11-14 08:08 PM
the Xperia Arc had 3 updates more or less since it was released and so far the Ambient Light Sensor it's not working, what's going on?
2011-11-15 08:30 PM
it doesn't work at all, now the question is it a hardware issue or a software issue? if it's hardware you can add it to the
Ambient Light Sensor
seem like a recall could and should be done if it's hardware related, if iCrap products can do a recall so can SE
2011-11-16 05:13 AM
I haven't tried this, but since SE is not fixing it the XDA forum is back to the rescue, you need to root your phone first, if you want to continue I'm not responsible for any damage to your phone.
For ARC, you can enable and disable by executing the following command in a terminal. You can write it in a script file and make it one-button action with the help of "gscript lite".
echo 1 > /sys/devices/i2c-0/0-0040/leds/lcd-backlight/als/enable
1 to enable, 0 to disable
In addition, by adjusting cutoff frequency of low pass filter of ALS output, you can adjust the changing speed of brightness relative to ambient lighting. The command is listed below:
echo 2,4,2,0 > /sys/devices/i2c-0/0-0040/leds/lcd-backlight/als/params
2nd figure "4" is to define cuf-off frequency to 4Hz for
increasing brightness. Range 0~7, larger value for faster change
3rd figure is for decreasing brightness. This example, 2, is to define 2Hz for cut-off frequency.
2011-11-16 08:38 AM
nah i dont want to root my phone
also..the comment above - it happens with my phone
i mean it dims itself when i enter a dark room and vice versa..so is this auto brightness or not..?
2011-11-16 01:05 PM
to be precise i sometimes notice it and sometimes doesnt..
even my laptop has this feature which i want to remove
trust me.. it doesnt helps that much instead irritates you..
i mean whenever i play any game... its keep on dimming , brightning and again and again..
and ruins the fun..
if you are demanding that , please ask for a enable \ disable auto brightness option also
2011-11-16 09:00 PM
ha but they should fix it, I remember when the X10 came out running 1.6 it was working just fine, then they did some small update and it messed it up then with 2.1 it was retarded