Did my earpiece get damaged?

[Nathan-NL]

Yesterday I used the Earpiece app and discovered it doesn't work on 4.2.2 anymore. And on 0% volume boost it's louder rather than on 100% volume boost, but by switching very swiftly between 0% and 100% it actually increases for about a second with 100%.

Since the developer advices to be careful with an increase over 40% in relation to possible damage to the earpiece and your hearing, is it possible that my earpiece got damaged from the few times the volume actually got increased with 100%?

Edit: Or is it possible to hear if it has been damaged?

 

[mr_nobody]

If earpiece is a volume boosting app, none of those work anymore on 4.2.2.

 

[Nathan-NL]

You are right, but it does work for a second when switching increase levels very quickly.