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SSE-9 HARDWARE  +  DCP-3 FIRMWARE
Updated 13 September 2026

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The board and its interface

The photographs show the assembled Rev B2 board. The screen images were drawn on a computer by DCP-3's own interface code, using its fonts and bitmaps. They are enlarged four times from the phone's 84 × 48 pixels and tinted green for readability.

Below are standby, the animated main menu, Games, Snake, message composition, a call and the charging dialogs. Contact names, the time and operator text are examples.

Board photographs | Interface captures

Rev B2 hardware

Component side of the Sisu SSE-9 Rev B2 mainboard

Component side: Telit module, SIM holder, battery contacts, RF circuitry and board connectors.

Keypad side of the Sisu SSE-9 Rev B2 mainboard

Keypad side: RP2354B area, keypad contacts, buzzer and headset connector.

DCP-3 interface sampler

84 × 48 source pixels, displayed at four times the original size.

Standby

DCP-3 standby screen

The standby screen, with “Network” and 12:34 as example text.

Messages menu

Animated Messages icon in the main menu

The animated Messages icon in the main menu.

Games menu

Snake selected in the Games menu

Snake selected in the Games menu.

Snake

Snake during a game

A game of Snake.

SMS composer

SMS composer with example text

Writing a message. The screen shows the input mode and the number of characters remaining.

Connected call

Connected-call screen with an example contact name

The call screen, with a contact name and elapsed time.

Charging dialog

Charging dialog with animated battery

The Charging dialog and its battery animation.

Battery full dialog

Battery full dialog

The Battery full dialog.

On GitHub: SSE-9 hardware   /   DCP-3 firmware

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Sisu is an independent project, not affiliated with or endorsed by Nokia or HMD. Third-party names, trademarks, and original materials belong to their respective owners. See the hardware notices and firmware notices for credits and terms.