
How to repurpose your old tablets into an e-reader! (4.1+)
Step 1: Download the Readera app from APKMirror
Step 2: Download twilight app from APKMirror https://www.apkmirror.com/apk/urbandroid-team/twilight/twilight-13-8-release/twilight-blue-light-filter-13-8-android-apk-download/
Step 3: now you need to set up readera. When you open the pdf, tap on the center to access the menu. open settings in the top right corner, and change page flipping to horizontal.
Step 4: Now we need to set up twilight. After applying every permission it asks and the accessibility perms, set colour temperature to 1000k relaxing and keep it down to the lowest, set intensity to 50% and screen dim to 55% and in the filter time settings apply the filter always.
Now you have turned your old Android 4.1+ tablet into an e-reader!