Sony WH-1000XM4 noise issue

My less than 6m old Sony WH-1000XM4 suddenly started making wind like static noise from the right side only.

After a few tests, I’ve confirmed it’s a persistent issue hence sent it back for RMA process.

The RMA engineer claimed they can’t find any issue & sent back the item as it is yet, the issue is still there.

Then I found this interesting article in Sony forum which linked to a reddit post.

The proposed solution, putting a silica gel, been working fine so far.

It’s astonishing to see this poor quality product coming from Sony, the inventor of Walkman and pioneer of AV industry. 🤔