Released as an affordable internet-enabled feature phone, the Nokia 215 (RM-721) became popular in emerging markets due to its low price point and essential smartphone-like capabilities, such as Facebook, Messenger, and Twitter integration via the Opera Mini browser. It runs on the Nokia Series 30+ (S30+) operating system, which is distinct from the older Symbian or S40 platforms.
Note: If you are referring to a different device (e.g., a router or industrial board), please clarify. The following is based on the widely documented Nokia 500 (RM-721). rm-721 firmware