I have done both side of my buds and the left side I do not need to raise the pin. The right side, however, i need to re-visit it as i do not have any response after I re-assemble it. The glue between the negative side of the battery and the chip board deformed and is too thick, the pin is not touching the battery even I tried to raise it a bit. After removing those glue, and adjusted the positive side pin, it works again.

Beware that the black sticky “glue” may deform and become very thick. The too thick glue may hinder the pin from making good contact to the battery. Check the remaining glue on the board after you separate the board and the battery. If it is too thick, remove the thick part.

Just skip this step. The ZIF looks and feels very delicate and it stuck quite hard inside its housing. I am able to finish the battery replacement (both sides) without taking the ZIF out. Just don’t need to risk breaking the connector, thus the whole ear buds. If you already done the previous step, undo it by closing that black latch back to its original place.

Just skip this and the next step. The ZIF looks and feels very delicate and it stuck quite hard inside its housing. I am able to finish the battery replacement without taking the ZIF out. Just don’t need to risk breaking the connector, thus the whole ear buds.