Series 30+
Series 30+ interface displaying the Menu on a Nokia 8210 4G | |
| Developer | Nokia (2013–2014) Microsoft Mobile (2014–2016) Human Mobile Devices (HMD) (2016-present) |
|---|---|
| OS family | MediaTek MAUI Mocor RTOS (for devices with Spreadtrum/Unisoc SoC) |
| Initial release | September 2013 |
| Marketing target | Feature phones |
| Platforms | MediaTek MT62 or Spreadtrum/Unisoc (specific SoC varies) |
| License | Proprietary software |
| Preceded by | Series 30 and Series 40 |
Series 30+ (abbreviated as S30+) is a software platform and application user interface used for some Nokia-branded and HMD-branded mobile phones. It is the main software used for Nokia feature phones succeeding Series 30 and Series 40. Earlier Series 30+ devices following its inception in 2013 use MediaTek chips and are based on MAUI software, while most devices since 2020 (including all 4G phones) are developed on Unisoc chips and run the Series 30+ interface on top of Mocor RTOS.