The board under test is curved after being pressed, will it affect the use?

serious impact, especially muti-layer board.

Serious impact, especially for multi-layer boards, arc bending will damage the board under test, which is a serious problem. Bending can also cause sideways pull on the probe, which can damage the probe. If the level of the press bed is normal, the jig needs to be improved, and the common method is to adjust the height of the corresponding pressing rod.