If the port appears but the tool can’t find it:
Do not trust the tool to auto-detect. Manually check:
Pro Tip: In SP Flash Tool, go to Options → USB COM Port and manually select the COM port number you saw in Device Manager instead of leaving it on "Auto". it cannot find the meta usb com port for modem handshake
If you see nothing new, the phone is not entering META mode, or the cable is charge-only.
If you see an unknown device or error symbol, you need drivers. If the port appears but the tool can’t
Handshakes rely on clean voltage levels on USB D+/D- lines. Poor cables, unstable power delivery (common with battery-less devices or depleted batteries), or damaged USB controllers can corrupt the handshake sequence. The port may appear, but the ACK signal never returns.
The failure to detect the port can be categorized into three primary domains: Software/Driver, Hardware, and Procedure. Pro Tip: In SP Flash Tool, go to
After installation, reboot your PC.
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