| Name | Version | File name |
Size | Available | Upload day |
| OS3 | 1.52 | mpc2500_jv152.os3 | 1310KB | Download | Jan 24, 2017 |
| Exchange video to large LCD OS only for large LCD (240X128) (Please refer to video.) OS128XL is installable only from OS128ORG bundled with large LCD. |
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| Name | Version | File name |
Size | Available | Upload day |
| OS128XL | 1.81 | mpc2500_128xl181.osl | 1421KB | Download | Jan 24, 2017 |
| OS only for large LCD (240X128) OS128SP is installable only from OS128XL. (Please refer to video.) (Support of OS128SP was ended) |
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| OS128SP | 1.10 | mpc2500_128sp110.osl | 1458KB | Download | Aug 01, 2017 |