No ringtone sound but speaker working fine

When I receive a phone call or a sms text message the phone will vibrate only, it won't play any ringtone, but the sound/speakers work as I can play music and listen to videos, now when someone calls or send me text on whatsapp/imo/skype the phone will play the ringtone.

I have tried a full reset back to factory setting but this did not fix the problem,*
Can anyone help me

Sent from my HTC Desire 816G dual sim using Tapatalk

tried 5 roms all of them working fine just no audio during call any fix ?

i cant relize what i did wrong ... hope to find solution really need my phone multilang

N7100 No sound only during calls. Everything else works fine.

So I noticed about 2 months ago that I have absolutely no sound (voice in/out or ringing while call is being placed) when I make or receive calls using the Phone app. I have various VOIP apps that all work fine. All media plays fine. Headsets all work fine for watching movies and whatnot. No sound during calls.

I had a factory unlocked N7100 that I was told came from Spain originally (I'm in Toronto). I had flashed some other country (I think South Africa) because they got a newer version and my phone wasn't updating automatically. Never had any issues until I noticed this with the calls. I have no idea how long it's been like that as I have a second phone I use primarily for voice calls and this one I usually just use basically as a tablet or I use VOIP apps for calling.

Yesterday I tried to flash to DN4 2.1 but after numerous times it would never get past the Samsung logo so I went with a France 4.4.2 stock ROM. That one has since autoupdated. Everything is working great including data. I can place calls and the other line will ring but there is no audio in/out of my phone (other end can't hear me, I can't hear them). Although it's not a huge issue for me I'd like to fix it. I have previously messed around with hidden menus and possibly even tried to play modifying with the phone app (as various hidden menus stopped working after the last update and I was trying to get them back). But when I was trying to get DN4 to work I wiped EVERYTHING repeatedly so I don't think anything could be hanging around to mess stuff up.

I don't think it's a hardware issue otherwise why would it work fine for VOIP using the same mic and speaker? Also, it doesn't work through a headset either. No voice, no ringing, etc.

Currently my phone is showing the following:
Baseband:
N7100XXUFNG1
Kernel:
3.0.31-4587314
dpi@SWDD5010 #1
Tue Mar 31 14:58:35 KST 2015
Build:
KOT49H.N7100XXUFOC2

Suggestions?!?