Identical specs as spelled out by the vendor (who has no interest in including 'implementation differences' in the user facing adverts, to the enduser running the OEM firmware, RAM- or flash size don't matter - nor really do SOC type and CPU frequencies) does not necessarily imply identical hardware.
Identical hardware does not necessarily imply identical software (h/w IDs, flash partitioning, enforced region coding, etc. pp.).
No one knows about the details, until someone dissects the device on their table and starts developing - it 'may' be simple, it may be hard, it could even be unsupportable.