Regarding status of the CVR. A different report has a subtle variation in the Chairman's remarks and indicates the search for the CVR continues:
Tempo.Co (English Version)
Editor: Laila Afifa
2021.02.04
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... a maritime search is going on for the cockpit voice recorder’s (CVR) memory unit that Tjahjono said would help explain any human factors behind the crash.
“If we only have the FDR, we do not know why the parameter changed, what was the reason,” he said of the autothrottle. “We need confirmation from the components that we sent to the US and UK and the CVR.”