Finding a "full" or "patched" firehose loader for this specific model is notoriously difficult because modern HMD Global (Nokia) devices utilize Secure Boot

In this state, the phone cannot directly accept standard .img software updates.

Under "Select Build Type," change the configuration tick box from "Flat Build" to (or keep on Flat Build depending on your target firmware package structural layout).

: This indicates a protocol handshake timeout. It usually means the loader binary signature does not align perfectly with the hardware hash constraints. Unplug the device, perform a hard restart, switch USB ports (prefer USB 2.0 over USB 3.0), and retry.

Many community-sourced firehose files are mislabeled or fail to match the specific device's hash. Using an incorrect loader can lead to a permanent brick.

Due to the secure nature of Nokia devices, finding a working firehose file requires searching for specific, tested files.