If your current device has system occupying 2.8 GB and the new ROM requires 3.2 GB, the op_list will include a resize command. The error occurs when the updater’s assert function checks the feasibility of this resize versus the physical limits of the super partition or the current metadata.
Some ROMs (especially GSIs – Generic System Images) do not cleanly remove their logical partitions. When you flash a new ROM, the update function reads the existing super metadata. If it finds leftover groups or partitions with conflicting names (e.g., system_a vs system_b ), the assertion fails because the op_list cannot reconcile the old topology. If your current device has system occupying 2
If you cannot flash stock firmware: