NVS sample erasing flash after firmware update

[Thabet]

Hello,

I want to write and later read the data stored in the nRF9160 flash.

For this I am starting from the NVS sample, I could verify that everything works perfectly and the data is kept in the non-volatile memory, keeping the storage even after turning off the device.

But I noticed that if the firmware is updated (VS Code), the data is erased and it is not possible to recover them after reprogramming the device.

I would like to know how it is possible to get around this, should I create a new memory partition for this data? Is the default NVS partition (storage) not enough for this?

Please, I would like to get information or examples, how to keep the data in the flash even after writing a new firmware.

I am using NCS 2.0.0 and nRF9160, the tests were performed with the NVS sample without changes.

[Hakon]

Hello,

have you looked at the partition layout of the images? You can use the partition_manager_report command to display the partition layout.

[Thabet]

Hi Hakon ,

This problem was solved, because I only observed the behavior described in the sample, when I added the NVS to my firmware I can observe that the data remains even after programming a new firmware or performing FOTA!

Thank you!