This might sound weird or disturbing lol, but could someone please give me some advice on replacing an unmarked IC, the circuit seems quite simple and straight forward, i just don't know much about these kind of things, recently started learning due to curiosity.. Its a rechargeable 3.7v sex toy, it has 2 buttons, a (+) and a (-), there is 2 small vibrating motors connected to the pcb, it charges fine, but when you press any of the buttons, nothing happens with the vibrating motors, motors still work, buttons work, so im suspecting the small 8 pin IC might be the culprit, my understanding is that it should have different modes/speeds/intensities of vibration when you press the buttons... Im attaching a pic of the pcb hoping anyone could possibly figure it out for me. Thank you in advance.
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