This is where the "maintenance" aspect truly shines. Some versions of this zip include scripts or binary files designed to wipe specific partitions. When a device is locked by a forgotten Google account (FRP lock) or has a corrupted kernel, a standard flash might not work. These binary files execute low-level commands to format the "param" partition, effectively clearing the "flash count" or resetting the download mode status.
Add a validation_report.json inside the zip with: bhl2maintenancezip better