How do I check if a second-hand phone isn't stolen or blacklisted?

Ask the seller for the IMEI (dial *#06# on the device) and run it on the manufacturer site or a local IMEI-check service before you pay. For iPhones, open Settings → General → About to confirm the model and serial, then check the Apple coverage page for warranty status. Skip any device that can't be unlocked in front of you — a locked handset is almost always stolen.

Local spec vs import — what's the real difference?

Local units come with a dealer warranty valid in-country, proper power adapter, and regional charging certification. Imports are often 10–20% cheaper but may have different frequency bands (noticeable on 5G), warranty that requires shipping back to origin, and different radio spec. For a daily phone, local spec is worth the premium; for cameras or gaming devices where warranty matters less, imports are fine.

What's a healthy battery for a used iPhone or laptop?

iPhone: Settings → Battery → Battery Health. Above 85% is acceptable; above 90% is very good. MacBook: System Settings → Battery → Battery Health. Laptops generally last 500–800 charge cycles before visible fade — ask the seller to show the cycle count. A phone under 80% health will feel slow and shut down unexpectedly; factor the cost of a battery replacement into the offer.

Can I transfer the manufacturer warranty to me as the new owner?

For Apple, AppleCare+ is tied to the device serial, so the remaining coverage transfers automatically. For most Samsung / Sony / Dell warranties, the dealer warranty is non-transferable — it stays with the original purchase receipt. Ask the seller for the original invoice; even if the warranty doesn't transfer, having proof of purchase helps with service-centre repairs.

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