Issue with Bypassing Samsung Galaxy Tab 4 T531 Battery

Hello,

I attempted to bypass the battery on my Samsung Galaxy Tab 4 T531 by directly attaching a 3.7V power source to the battery BMS, which I had previously removed from the battery. However, when I tried powering on the device, I observed a brief spark at the circuit pins, despite having verified that the terminals were correctly connected. I did not add any capacitors to the circuit. Could this be the reason for the spark, or is there something else that I may have overlooked in the process?

Thank you in advance for any guidance or troubleshooting advice.

Best regards,