So this is a new type of issue I am currently facing, Recently I ran an APK of React Native Application I recently built on my system. After running that APK successfully. I started facing some issues regarding my phone's ** sound key **.
I tried restarting the device [Samsung], So it stopped showing the 1st issue. But after a few days a 2nd issue arrives.
1st issue => The volume up button stops working manually and starts increasing the volume automatically.
2n issue => Now whenever I write a new Text Message to someone it automatically starts increasing the font size of the text.
I gave a reboot to the device and even formated it, but nothing helped. I want to know if it's a software side issue or hardware? So that before submitting the device to a Samsung store, If it's a software issue and if I can fix it. It will save me some bucks.
I actually solved this issue and that was due to the Hardware issue that has happened to my Android Samsung device and I researched it.
This type of issue was very common with users having that old version of smartphones and that is why new design keys for power and volume were introduced in most of the new smartphones which were launched in later 2016. This has actually reduced the key issues and if in case there is an issue, now it is easier to fix it since the keys are separated from the board as it was used to be earlier.
Also, some useful sources if someone is facing a similar issue in their old version android devices.