Rkandroidtool V1.35 ((free))

Feature: "Batch APK Installation and Management"

6. Common Use Cases

Unbricking: Reviving a device stuck in a boot loop or one that fails to boot due to corrupted system partitions.
Downgrade/Upgrade: Installing older firmware versions to exploit vulnerabilities or newer versions for performance improvements.
Cloning: Using the "Backup ROM" feature to copy the exact state of one device to multiple identical units (mass deployment).

Reliability for Unbricking: It is frequently cited as more "powerful" than standard batch tools because it can still communicate with devices when they are in a semi-functional "blue" or "red" light state. RKAndroidTool v1.35

Share workspaces between team members.

Allow a batch mode with a CSV/JSON list of device serials and firmware paths.
Auto-detect multiple devices in Loader/MaskROM mode.
Flash each device in parallel or sequentially, assigning custom serial numbers or MAC addresses post-flash.