How to Check if a Phone Is Original or Refurbished (IMEI Guide 2026)

India’s second-hand and grey-market phone trade is enormous, and so is the number of people who discover only after paying that their “brand new sealed” handset was refurbished, refurbished-and-relabelled, or in the worst case assembled from parts. The good news is that verifying a phone takes about ten minutes and needs nothing more than the IMEI number and a browser.

This guide walks through every check that actually proves something: the IMEI lookups that matter, the on-device codes, the box and packaging tells, and the software-level signs that a device has lived a previous life. TechLein has ordered these from most to least reliable, so you can stop at the point where you are satisfied.

Key takeaways

The IMEI is the single most useful identifier, and it must match in three places.
Warranty status checked on the brand’s own site is stronger evidence than any seller’s claim.
A refurbished device is not automatically bad, an undisclosed one is.
Do all checks before payment, and never accept a phone whose IMEI is blocked.

Step 1: find the IMEI, in all three places

Every phone carries a unique 15-digit IMEI, two of them on a dual-SIM device. It should appear identically in three locations:

Dial the code. Type star hash zero six hash on the dialler. The IMEI appears instantly, and this reading comes from the hardware.
Settings. Settings, About phone, IMEI. On iPhone, Settings, General, About.
The retail box. Printed on the barcode label.

If the dialler IMEI and the box IMEI disagree, stop. Either the phone is not the one that came in that box, or the IMEI has been altered, which is a criminal offence in India.

Step 2: verify the IMEI is genuine and not blocked

Two checks, both free:

KYM (Know Your Mobile), run by the Department of Telecommunications. Send an SMS in the format KYM followed by the 15-digit IMEI to 14422, or use the Sanchar Saathi portal. It returns the brand, model and whether the IMEI is valid, duplicated or blacklisted.
CEIR status. The same system that lets owners block stolen handsets shows whether this IMEI has been reported lost or stolen. Our guide to blocking a phone through CEIR explains the mechanism.

A blocked IMEI means the phone will lose network access on Indian operators. It is unusable regardless of how good the price looks. The Sanchar Saathi app puts both checks in one place.

Step 3: check warranty status on the brand’s site

This is the check that catches refurbished units sold as new. Enter the IMEI or serial number on the manufacturer’s official warranty page.

What it shows	What it means
Warranty not yet activated	Genuinely unsold and new
Warranty started months ago	Previously sold, so not new
Warranty expired	Old stock or a used unit
Serial not recognised	Grey import or counterfeit, walk away
Region mismatch	Imported unit, Indian service may be refused

A warranty clock that started before you bought the phone is the clearest possible proof it is not new. What the warranty then covers is a separate question, our guide to smartphone warranty in India goes through the exclusions.

Step 4: the physical inspection

Refurbished units are usually cleaned well, so look where cleaning does not reach:

Screws and seams. Burring around the screws near the charging port means the phone has been opened.
Screen gap. Run a fingernail along the edge. An uneven lip suggests a replaced panel.
Port and speaker grilles. Dust and lint deep inside a supposedly sealed phone is a contradiction.
Camera glass. Fine circular scratches come from pocket use, not from a factory.
Box seal and print quality. Fuzzy printing, a mismatched font, or a seal that peels cleanly are all warnings.

Step 5: software-level checks

Battery cycle count. On iPhone, Settings, Battery, Battery Health shows maximum capacity, anything meaningfully below 100 percent on a “new” phone is a red flag. Android varies by brand, many expose it in a diagnostics menu.
Total usage time. Some brands’ service menus show cumulative screen-on time.
Account locks. Confirm no previous Google or Apple account is attached. A locked device is worthless to you.
Build and firmware. A phone advertised as new should not be several OS versions behind with a region code from another country.
RAM and storage. Run a benchmark or a storage test rather than trusting the settings screen, especially on unfamiliar brands. Our explainer on virtual RAM on Android covers why the advertised figure can be misleading even on genuine devices.

Refurbished is not the enemy, undisclosed is

A certified refurbished phone bought knowingly, with a stated warranty from the seller, can be excellent value. The problem is a refurbished unit priced and sold as new. If you are considering one deliberately, our guide on whether a refurbished phone is worth it in India weighs it up properly.

If you have already been sold a fake

Stop using it and preserve the box, invoice and packaging.
Get the KYM result in writing, a screenshot with the timestamp.
Raise a return with the platform or seller immediately, citing the IMEI or warranty mismatch.
For online purchases, escalate to the platform’s grievance officer, they are legally required to have one.
For a blocked or stolen IMEI, file a police complaint, you are in possession of stolen property.

Frequently asked questions

Can an IMEI be changed?

Technically it can be tampered with, which is illegal in India. That is exactly why the dialler reading, the settings reading and the box must all agree.

Is KYM free?

Yes. The SMS to 14422 and the Sanchar Saathi lookup are both free government services.

What if the seller refuses to let me check the IMEI?

Do not buy. There is no legitimate reason to refuse, the IMEI is not sensitive information.

Does a broken seal always mean the phone is used?

Not always, some sellers open boxes to install a screen guard. But it removes your best single piece of evidence, so combine it with the warranty check.

Are open-box deals safe?

They can be, if the warranty has not started and the IMEI checks out. Run every step above regardless of how the deal is labelled.

The bottom line

Three checks catch almost everything: the IMEI matching across dialler, settings and box; the KYM lookup confirming it is valid and unblocked; and the manufacturer’s warranty page showing the clock has not already started. Ten minutes of checking is cheap insurance on a purchase that costs a month’s salary for many buyers, and it is the same discipline we recommend in our full smartphone buying checklist.

More phone buying guides

This guide is the starting point for a wider set of walkthroughs on the same subject:

Before you shortlist anything, see our guide to the full smartphone buying checklist.
If a listing advertises expandable RAM, see our guide to what virtual RAM really does.
On charging speeds and battery life, see our guide to how fast charging actually works.
When you move on from this device, see our guide to selling an old phone safely.
If something goes wrong later, see our guide to smartphone warranty and claims in India.
If you are considering refurbished deliberately, see our guide to whether a refurbished phone is worth it.