Particle Electron without Sim

Troubleshooting
2

Welcome to the community :wave:
For new members we’d like to point out this thread
https://community.particle.io/t/welcome-using-particle-forums-and-forum-etiquette
especially Step 2 :wink:

Searching the forum and finding an already posted answer often works out quicker than waiting for people to answer (often over and over).

Potential solutions:
Programming Electron without SIM card
Using Electron in Manual or Semi-Automatic Mode Without SIM [Solved]
[solved] Running firmware on the Electron without a SIM card via DFU?

or this To run an Electron without SIM you need to use `SYSTEM_MODE(SEMI_AUTOMATIC)` or `SYSTEM_MODE(MANUAL)` to prevent the device from ***attempting*** to connect to the cell network.
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