To me, it looks like the cable has a bent/broken pin and the top pin on the logic board looks bent, but savable.
[image|3276713]
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[image|3276716]
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you should be fairly gentle with these connectors, pressing on one side at a time.
you should try to ***GENTLY*** bend the top pin on the connector back into place, and you might need to buy yourself a new vol. switch.
[guide|61325|iPhone SE Volume Controls Replacement - iFixit Repair Guide|new_window=true]
[link|https://www.ebay.com/itm/165560555052?itmmeta=01HTZFEJC9WKEVJYBXGN7KAEP7&hash=item268c2d962c:g:QAsAAOSw6GFiwoFu&itmprp=enc%3AAQAJAAABANFTxnI6uCW0cz3QuRZWzTrzZsKjcnxT3kzBPAQLTKrX7u7WreaUDE6qeJbrU69y3OaMC3VEsmm2zTZoQujboOD59QKMs5VXh%2FmCe6l%2B%2BQLhgI%2B8f%2FU1I2uRY5nWJ5khYM%2Bk3RrqfagRsgV%2BPJ0btz5QSvDtOuSyh43kHqQo0yCOCv9fWgz94IjCCuV15h4zwl%2F0xKkfvT1E84nxsNE6d6GfZ%2FI0LXbrkuic%2F7pLTdoxB6vPT%2Bu3F5M9IQXn41Si0OYA15ocVXspuKyzVsjFuBl0Fuxm428lvQBT7NvQvfLjf70vrGFUKrU6kSR1aiVU8tDt%2FdtPwtPXEwTlkU46PU4%3D%7Ctkp%3ABFBMnKa679dj|Replacement Power + Volume Button On/Off Flex For Apple iPhone SE (2016)|new_window=true]
To me, it looks like the cable has a bent/broken pin and the top pin on the logic board looks bent, but savable.
[image|3276713]
[image|3276716]
you should be fairly gentle with these connectors, pressing on one side at a time.
you should try to ***GENTLY*** bend the top pin on the connector back into place, and you might need to buy yourself a new vol. switch.
[guide|61325|iPhone SE Volume Controls Replacement - iFixit Repair Guide|new_window=true]
[link|https://www.ebay.com/itm/165560555052?itmmeta=01HTZFEJC9WKEVJYBXGN7KAEP7&hash=item268c2d962c:g:QAsAAOSw6GFiwoFu&itmprp=enc%3AAQAJAAABANFTxnI6uCW0cz3QuRZWzTrzZsKjcnxT3kzBPAQLTKrX7u7WreaUDE6qeJbrU69y3OaMC3VEsmm2zTZoQujboOD59QKMs5VXh%2FmCe6l%2B%2BQLhgI%2B8f%2FU1I2uRY5nWJ5khYM%2Bk3RrqfagRsgV%2BPJ0btz5QSvDtOuSyh43kHqQo0yCOCv9fWgz94IjCCuV15h4zwl%2F0xKkfvT1E84nxsNE6d6GfZ%2FI0LXbrkuic%2F7pLTdoxB6vPT%2Bu3F5M9IQXn41Si0OYA15ocVXspuKyzVsjFuBl0Fuxm428lvQBT7NvQvfLjf70vrGFUKrU6kSR1aiVU8tDt%2FdtPwtPXEwTlkU46PU4%3D%7Ctkp%3ABFBMnKa679dj|Replacement Power + Volume Button On/Off Flex For Apple iPhone SE (2016)|new_window=true]