[Tutorial] - How To Change Screen DPI

Slappy

\n\nWarning
Modifying system files can cause your device to bootloop or become unresponsive please ensure you have a backup before you proceed with any system mod.


Also note, altering your DPI can cause the Google Play Store to show your device as incompatible for some apps. Some developers limit their app's compatibility based on a device's DPI value.  If for any reason you get an error, all you have to do is revert back to your original DPI and download the app again. Once you have the app installed, you can switch back to your custom DPI.

Method 1: Manual Method
Use a file explorer such as Solid Explorer or ES File Explorer
Solid Explorer: https://play.google.com/store/apps/details?id=pl.solidexplorer2
ES File Explorer: https://play.google.com/store/ap ... strongs.android.pop

Step 1.
Browse to the location of your build.prop file -  /system/build.prop
Make a backup of the file before you edit it.  You should always backup any file you will manually edit.

Step 2.
Open the file with the app editor (Solid Explorer or ES File Explorer) and scroll through until you find the following value:
ro.sf.lcd_density=420
The value 420 is what we are interested in changing.  

Step3.
Change this to something that better suits your tastes. I’m currently using 400 as this suits me.
Save the file you just edited and reboot your device.



Method 2: Use a Build Prop Editor App
If you don’t feel brave enough to manually edit system files you can also use an app like
Build Prop Editor by JoeyKrim: https://play.google.com/store/ap ... rim.buildpropeditor

Open the app
Click Editor



Scroll till you find ro.sf.lcd_density=420
Tap on the value and change to your desired DPI
Scroll back to top and click Save Changes.



Reboot device for new DPI to take effect.

Here's how my UMi Iron looks with a DPI of 400