> For the complete documentation index, see [llms.txt](https://guide.cronuszen.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.cronuszen.com/zen-es/preguntas-frecuentes/error-300x-e3-e3001-e3002.md).

# Error 300X (E3 / E3001 / E3002)

#### Pregunta:

***

¿Qué significan los errores E3, E3001 o E3002?

#### Respuesta:

***

Estos códigos de error indican corrupción del firmware o un fallo del sistema.

Normalmente ocurren cuando:

• La instalación del firmware se interrumpió\
• El dispositivo perdió energía durante una actualización\
• Los archivos del firmware se corrompieron

#### Cómo solucionar

Realice un **Restablecimiento de fábrica / Recuperación de firmware**:

1. Ingrese **Modo Bootloader** (mantenga pulsado el botón azul de reinicio mientras lo conecta al PC).
2. Ir a **firmware.modcentral.ca** usando Chrome o Edge.
3. Reinstale el firmware más reciente.

Si la actualización falla, conecte ambos **CONSOLE/PC** y **PROG** puertos USB para asegurar suficiente energía.


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