Hex D4xxxxxx is indeed (almost) BRK... on ARM64 [1]. Being ARM32, these should be BKPT (hex BExx). [2] [1] https://developer.arm.com/documentation/ddi0602/202

Hex D4xxxxxx is indeed (almost) BRK... on ARM64 [1]. Being ARM32, these should be BKPT (hex BExx). [2] [1] https://developer.arm.com/documentation/ddi0602/2025-06/Base-Instructions/BRK--Breakpoint-instruction- https://developer.arm.com/documentation/ddi0602/2025-06/Base... [2] https://developer.arm.com/documentation/ddi0597/2024-09/Base-Instructions/BKPT--Breakpoint- https://developer.arm.com/documentation/ddi0597/2024-09/Base...