Tray in a Bluray player locks and refuses to open? (It's not the belt)

Tray in a Bluray player locks and refuses to open? (It's not the belt)

This Philips Bluray player started refusing to open its tray, so I opened it: it was the usual rubber belt issue described in many fix-it guides, so upon boiling the rubber piece, etc., etc., the player worked again.

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