Cellular reception has weakened after I replaced the battery

Replacing the battery, I struggled to separate the screen from the body, but eventually managed by using a boxcutter to start the separation by inserting it near the lower right of the body, and then I used the plastic plectrums to go round the body. I fear that by scratching the inside of the body, I have weakened the cellular reception, is that a possibility?

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Could you have damaged the cellular antennas? They are along the inside of the frame.

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