Blacklisted S7 gets signal but no mic

[EmZed]

Hi all, I'll try and keep this short and cos it's been a very, very long story. The ending is that I bought a blacklisted phone from ebay, which at the time of purchase was of course working fine with no problems, until I dropped it and had to repair it.

That's when they told me they had issues with the mic that wasn't working so when they checked the IMEI, it came back as blacklisted. They couldn't get any signal and the way they explained it to me was that it was useless as a call making/receiving phone and could only use it on wifi.

I received the phone yesterday and I put my SIM card; not only did I have reception, I had a working 4G signal, could access the internet and was able to receive calls from my colleagues. Only problem? They couldn't hear me and I could only hear them on speakerphone, not through the external speaker at the top.

At home, I tried the Skype bot that lets you set up the mic and all and that was working, again only when I had it on speakerphone. Same on Google, when I say Ok Google the assistant comes up and I can 'voice search' just fine. I can also make calls.

So I'm confused. I thought blacklisted means you get no signal, you can't make any calls etc but can a blacklist status disable the speaker/mic when on calls? The repair was about replacing the cracked LCD, could the new screen affect/disable the mic since the phone is not a European model (I got it from a now banned from ebay seller from Hong Kong)? And finally, should I be trying to un-blacklist the phone or fix the mic and the speaker?

UPDATE: I just checked the model number and it's the SM-G930T. The LCD I just replaced is G930F. Could that have anything to do with the speaker not working?

Any ideas/recommendations are more than welcome. Many thanks in advance.

 

[Rukbat]

UPDATE: I just checked the model number and it's the SM-G930T. The LCD I just replaced is G930F. Could that have anything to do with the speaker not working?

Definitely. You could have broken the mic, you could have broken a wire, you could have pulled a wire off whatever it was soldered to.

This time, find a good repair shop and get an estimate on fixing it.

 

[EmZed]

Definitely. You could have broken the mic, you could have broken a wire, you could have pulled a wire off whatever it was soldered to.

Sorry, I didn't mean I did it myself. I meant the new LCD that was replaced by the repair shop but again, only because they put the G930F on, even though the model number of my phone is G930T.