BKlightCtl(Brightness control)

4.4
112 reviews
10K+
Downloads
Content rating
Everyone
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About this app


When adjusting the brightness of the backlight, you can arbitrarily set the maximum and minimum of the brightness and switch with shake. Adjust with LED brightness without using filter.


1. The maximum and minimum brightness can be set arbitrarily when the backlight brightness is automatically adjusted. (Android 4.4+, or Rooted 4.3 or lower only)
2. Save up to three settings and switch with shake. (Android 4.4+, or Rooted 4.3 or lower)
3. You can set the backlight brightness to be darker than the OS minimumize setting. (Rooted Android 4.3 or lower only)
4. For models with hard keys, you can adjust the key backlight. (Rooted Android 4.3 or lower only)
5. Because filters are not used, power saving is achieved if the luminance is lowered. Also the capture will not get dark.


1.
Please set the notification setting of Superuser etc to off.

2.
Start BKlightCtl.

3.
Let's move the seek bar of "SCR brightness (Min)". The screen darkens according to the value of the bar.
The brightness set here becomes the lowest brightness.
If you darken the setting too much, you may not be able to see the screen, so please be careful!.
For safety reasons we can not set it to less than "8".

4.
BKlightCtl does not correspond to that model if it does not become dark even if "SCR brightness (Min)" is changed.

5.
Next, adjust "SCR brightness (Max)". The brightness set here becomes maximum brightness.
It can not be smaller than "SCR brightness (Min)".
Depending on the model, 255 is not the maximum brightness. (It does not become brighter than a certain value)
For example, if the brightness of 144 or more does not change, set it to 144.

6.
In this state the setting is not saved and the brightness adjustment is not working.
Please check "Execute" and press "Save & Set" button.
A display is added to the notification bar and automatic adjustment is started within the specified brightness range.

7.
If you want to stop the operation, uncheck "Execute" and press the "Save & Set" button.

8.
It can be automatically started with the menu - "Detail settings" - "Auto start on boot".
Please do not check "Auto start on boot" at the first stage.If problems occur, turn the power off and back on.


"Button luminance threshold value" is the threshold value of the surrounding brightness.
Change the key backlight to "KBD brightness" when the surrounding brightness is brighter than the "Lux threshhold(KBD)" setting, or to "KBD brightness (Night)" when it is dark.
If you do not use key backlight, please set "Lux threshhold(KBD)" to zero.


· It is possible to change the brightness by inputting the following shell command with root authority.
[Screen]
am startservice -n com.jp.ssipa.bklightctl / .MyService --es SERVICE_STATUS TEST_K - ei TESTVALUE {0-255}
[Key]
am startservice -n com.jp.ssipa.bklightctl / .MyService --es SERVICE_STATUS TEST_S - ei TESTVALUE {0-255}

· If you have any request, please comment on Google Plain.
Updated on
Aug 9, 2018

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
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Ratings and reviews

4.4
107 reviews
A Google user
January 13, 2019
I tried a number of back light control apps and so far this is the best. With a simple shake I can go from day, inside and night modes. No more squinting to see a widget. Just shake-shakr and go. I just wish that they were more active here. This is a great app that I would pay around 1-2 dollars for extras, like many icons, or renaming the sets or something nifty. Thanks for an amazing free app.
6 people found this review helpful
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A Google user
May 27, 2019
I keep my display dim but forget to adjust before going outside. This app lets me shake it brighter which is exactly what I needed. Only 4 stars because my lock screen brightens if I just look at it (no shaking) so that is a little annoying. Also, I wouldn't mind if the sensitivity could be set even lower or longer. I'll gladly shake my phone for 2 seconds to keep it from getting brighter when I don't want it to. UPDATE... I enabled a 2nd setting (Sub 1) and everything functions correctly now. My lock screen does not change unless I shake the phone and shaking toggles between two settings. - Bumped up to 5 stars.
7 people found this review helpful
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sisipa
May 27, 2019
Please try setting. Upper right menu >Detail settings >>Acceleration sensor value(m/s2)
A Google user
November 13, 2019
EDIT :: NEED RUN IN FOREGROUND PERMISSION FOR ANDROID 9 + . APP CLOSES EVEN AFTER REMOVING BATTERY OPTIMIZATION. ............... Innovative way to gain more control over screen backlight, also reduce battery consumption,In update Can implement Dark mode and sub3 and sub4, No Internet Access Permission, Thanks.
2 people found this review helpful
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What's new

Supports rooted android 7 (for Gemini PDA)