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Repair guides and disassembly information for Google's Pixel 4 smartphone, released in October of 2019.

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Thin White wire under the battery appears broken. Where does it go?

Replacing the battery which was quite stuck to the phone case. Battery is out and there is now a white wire that was under the battery that is only connected at one end. Is it supposed to be connected at both ends? Is it an antennae?

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Without photos it is quite hard to diagnose, but my best guess for a single white wire would probably be a 4G LTE antenna. They are MIMO (Multiple In, Multiple Out) and have redundancy, so you may or may not be able to continue on using it, albeit at a reduced speed.

If it isn't an LTE antenna, perhaps it could also be a wire from the NFC coil, which is located underneath the battery.

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