Back speaker and vibration not working after USB board replacement

Hey, I replaced the charging connector’s USB daughter board, and after that, the vibration and the back-speaker, which are both connected to this board, don’t work.

However, charging works fine.

I’ve tried with 2 different aftermarket replacement boards, and I’ll keep trying more as long as this seller sticks to their “replacements only” policy.

Any tips?

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(Also, it’s the M01, not the A01, but we don’t have the M01 listed on this site yet.)

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It looks like that the replacement board lacks all the SMD components...

完成的

You're absolutely right... What the heck...

完成的

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