With raw eMMC read access via Firehose, one can directly dump the persist or storaged partitions where Google FRP tokens are stored. By modifying specific bytes in these partitions (e.g., changing is_frp=1 to 0 ), the device can be tricked into skipping the Google account verification after a factory reset. This is a legal gray area and typically voids any warranty.
Otherwise, consider professional repair or replace the device – a used Nokia 3.4 often costs less than the time/risk involved in Firehose recovery. Nokia 3.4 Firehose Loader
The leak of the Firehose loader undermines the Android Verified Boot chain. A user can flash custom boot images without unlocking the bootloader via official means (which is normally impossible on Nokia phones after their initial rollout). This allows persistent rootkits and custom ROMs on devices that were not designed to allow them. With raw eMMC read access via Firehose, one