How to check current firmware nvram size?

[Khurram]

I am currently running Asuswrt-Merlin firmware version 3.0.0.4.264.22. I would like to upgrade to 3.0.0.4.374.32. I don't know if my current firmware has 32 KB NVRAM or not. Please let me know if I can update to the latest version without losing my settings? Thanks.

 

[RMerlin]

I am currently running Asuswrt-Merlin firmware version 3.0.0.4.264.22. I would like to upgrade to 3.0.0.4.374.32. I don't know if my current firmware has 32 KB NVRAM or not. Please let me know if I can update to the latest version without losing my settings? Thanks.

All firmwares since 3.0.0.4.2xx have 64 KB NVRAM. Only the old versions that start with 3.0.0.3.1xx (for Asus original FW) are 32 KB.