ADB Sideload from an Android phone

NekoFlash can send an update ZIP from the host Android device when the target is in Recovery / ADB Sideload mode. This is separate from normal Android ADB device mode.

1. Put the target into sideload mode

Boot the target into its recovery environment and choose the option usually labeled Apply update → Apply from ADB. The exact wording varies by recovery.

2. Connect the Android host

Connect the NekoFlash phone or tablet over a data-capable USB OTG / USB-C connection. Make sure the intended target is attached before selecting the ZIP.

3. Select or import the update ZIP

Open the Sideload tab in NekoFlash and choose the compatible ZIP. Keep enough free storage in the NekoFlash workspace if the file needs to be imported first.

4. Start the sideload transfer

Begin the transfer and leave the cable connected. Recovery controls the actual package verification and installation behavior on the target side.

Normal ADB vs. ADB Sideload

Normal Android ADB DEVICE mode and Recovery / Sideload are distinct modes. If the target is waiting for sideload, use the Sideload workflow rather than expecting normal shell or file-transfer behavior.

Before applying an update

Verify that the ZIP is intended for the exact target device and recovery procedure. A successful USB transfer does not guarantee that the package is safe or compatible.