What is the ruling on the adhan of a muezzin who innovates by reciting the Qur'an aloud between the adhan and the iqamah, and by seeking forgiveness and supplicating aloud after the prayer, and by reciting a supplication aloud between the two Friday sermons?

Reciting the Quran aloud between the Adhan and Iqamah is an innovation (bid'ah) that has no basis, and it may disturb those praying. The muezzin should be advised gently. As for reciting the Quran aloud between the two sermons (khutbahs), it has no basis. It is recommended to recite Surat Al-Ikhlas silently between the two sermons, but not aloud; rather, one should recite it just loud enough to hear oneself.