DIY, Troubleshooting & Fixes
Most security-system content is written for buyers. This section is for owners - people with equipment already on the wall that's beeping, orphaned, inherited, or just underused. The theme across every guide here: existing hardware is usually worth more than the industry wants you to think, and most "broken" systems are one battery, one code, or one $10-a-month monitoring switch away from useful.
Guides
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How to Use Old ADT Equipment Without Paying for Monitoring
Which ADT panels are secretly Honeywell or DSC hardware that other companies can monitor from around $8–$10/month, which are proprietary dead ends (looking at you, ADT Command), how to convert to free self-monitoring, and what to salvage when the panel can't be saved.
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Bought a House With an Alarm System? Here's What to Do
Identify the panel, solve the missing-code problem (defaults, documented backdoors, and when you're locked out for good), then pick between reactivating, switching to takeover monitoring, self-monitoring, or replacing - with realistic costs for each path.
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SimpliSafe Base Station Offline: Every Fix That Works
Whether the app says "offline" or the base station announces "No Link to Dispatcher," the fix sequence is the same: power, WiFi (including the mesh-router 5 GHz trap that catches new routers), placement, and reset - in the order that actually resolves it.
Coming soon: more brand-specific troubleshooting guides - SimpliSafe sensors not responding and Ring Alarm - the fix-it questions owners actually search at 11 p.m.
Starting from zero instead of fixing something? Head to our cornerstone guide on how to choose a home security system without getting upsold. And whether your system is old or new, our home security checklist covers the low-cost basics - locks, lighting, sensor placement - that make any alarm work better.