Resurrection Remix has never given me echo problems.
BUT try the Miui Global custom rom, ported from Redmi Note 3 Pro Special Edition
(KATE) Marshmallow 6.01. .
It gives me no echos either.
First Miui Rom that didn't echo. Lol
NEW Miui 8 Global Stable rom (Lollipop 5.1) also has a big echo...
I'm from Canada and I need your help.
With my RN3 Pro SD, I have echo issues with all of the Miui stock or Xiacomi roms., whether it is Miui 7 or Miui 8 or Global roms.
I can call or receive a call from my phone directly without any echos at either end
I don't hear an echo and neither does...