Heat up the lid again before continuing.

Separate the 2 halfs using one of the opening picks.

Make sure not to press the pick more then ~1mm into the case to avoid damaging anything on the PCB.

Slowly lift up the outer half after cracking the seal around the whole earbud. Slowly pull them apart as there is some flexible adhesive on 2 internal pegs that takes a bit of time to "give up".