Iphone 8+ Front speaker not working

[TripleStack]

Hey, I have recently done a screen replacement on a iphone 8+ and it all went well to my recognition but i soon realised the front speaker failed to work, the cause of this i have no idea, i have done screen replacements on previous phones and this has never happened

The phone was dropped from a low height, the speaker worked after the drop, just after the screen replacement it does not work

Any help would be great, thanks

 

[hang-the-9]

No way to know without having the device to look at, it was opened now not working, so during the work on it something got disconnected or broken.