Knowledge base
Everything you need to know about IMEI numbers, device checking, blacklists, and staying safe when buying or selling a phone.
Everything you need to know about IMEI numbers — what they are, how they work, and why every phone has one.
Step-by-step guide to finding and verifying your IMEI on iPhone, Android, Samsung, and any other mobile device.
Learn how IMEI blacklists work, who controls them, and what to check before buying a second-hand device.
The first 8 digits of your IMEI contain more information than you think. Here is how to decode them.
Whether you want to switch carriers or sell your phone — here is how to check carrier lock status on any device.
Two unique identifiers, two very different purposes. Learn when to use each and why both matter for your phone.
Act fast. Here is exactly what to do in the first 24 hours to protect your data, block the device, and improve your chances of recovery.
No — and understanding why is key to understanding how mobile networks identify devices.
The complete checklist to avoid scams, stolen devices, and hidden problems when buying used.
iCloud lock can make an iPhone completely unusable. Learn what Activation Lock is and how to check before buying.
Which models offer the best value, longest software support, and best bang for your buck on the used market.
Battery health is one of the most important things to check when buying a used phone. Here is how to do it on every device.
IMEI cloning is illegal and more common than most people realize. Learn how to spot it and protect yourself.
Wipe your data properly, price it right, avoid scams, and complete the sale safely with this complete guide.
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