Samsung st1000Lm024 err Failure to change RAM data

[Arihant]

While changing Head map in samsung / Seagate st1000lm024, HN-m101mbb/av2 Giving following error.
is it software bug?

RAM head map editing
****************************************
Debug mode

ROM loading
From file............................... : <HDD Profile>\Data\ROM\rom.bin

Selected parameters
Heads map............................... : 1, 1, 1, 1
Disable record in service area.......... : No

Memory map building..................... : Ok
Search for free memory space............ : Ok
Search control point.................... : Ok
Search table of zone translation address : Ok

Creating a pointer to executable code... : Ok
Source code patching.................... : Ok
Normal mode
Failure to change RAM data; Buffer data does not match with RAM data