What I have after removing the hacked memory size?
 

Hello,

I have sucessfully reformat the MP5 back to its physical flash memory size close to 4GB (FAT32) by using CheckFlash and window formatting tool.

Strange thing is the total size (new format plus unallocated) is still 32GB in the MP5?
Please see attached picture.

However the Xp explorer confirm and report the MP5 memory size is 3.85GB and mentioned nothing about the unallocated size.

My concern is:
If I accidentally save files exceed the 4 GB, will the over size data creep into the unallocated area and crash my MP5?

I would appreciate your help if you can answer my question.