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TCP Protocol v1
The TCP protocol is designed to be a simple way to use the fastboot protocol over ethernet if USB is not available.

The device will open a TCP server on port 5554 and wait for a fastboot client to connect.

Handshake
Upon connecting, both sides will send a 4-byte handshake message to ensure they are speaking the same protocol. This consists of the ASCII characters “FB” followed by a 2-digit base-10 ASCII version number. For example, the version 1 handshake message will be [FB01].

If either side detects a malformed handshake, it should disconnect.

The protocol version to use must be the minimum of the versions sent by each side; if either side cannot speak this protocol version, it should disconnect.

Fastboot Data
Once the handshake is complete, fastboot data will be sent as follows:

[data_size][data]
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