NRF_FSTORAGE_DEF issue with nRF52810


I'm using S112 v6.1.1 with SDK 15.3.0 on nRF52810.( I don't use bootloader )

I tried to search examples for using fstorage api on it.

But I couldn't get anything.( even in SDK examples, there is only for nRF52832 )

My application address range is below:

0x19000 - 0x2A2F8

I think I can use 0x2B000 ~ 0x2FFFF for fstorage.

But it didn't work.

Is it impossible to use fstorage on nRF52810?

Could anyone give me some advice? Thanks.