wait before I try to use NXNandManager, there IS an exosphere file in my root!!
here are the contents:
[exosphere]
debugmode=1
debugmode_user=0
disable_user_exception_handlers=0
enable_user_pmu_access=0
blank_prodinfo_sysmmc=1
blank_prodinfo_emummc=1
allow_writing_to_cal_sysmmc=0
log_port=0...