進入 Recovery Mode

Volume Up + Power

          OR

adb reboot recovery

'adb root' is required for 'adb reboot sideload'.

adb root

sideload

adb devices

List of devices attached
????????????    sideload

adb get-state

sideload

# sideload OTAPACKAGE      # sideload the given full OTA package

adb sideload <zip name here>

i.e.

adb sideload lineage-15.1-20180717-nightly-tissot-signed.zip

serving: 'lineage-15.1-20180717-nightly-tissot-signed.zip'  (~0%)
...
Total xfer: 1.00x