Is the replacement port the same amount of pins and the same orientation? Ones that are flipped upside down can’t be used as they route the pins opposite to where they are supposed to link to the board.
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Another thing I do sometimes if needed is jump start the battery I inject 3.7-4.2v on the + and - of the battery’s to externally charge them via a DC bench power supply. Voltage may vary depending on rated voltage of the battery.
Is the replacement port the same amount of pins and the same orientation? Ones that are flipped upside down can’t be used as they route the pins opposite to where they are supposed to link to the board.