Your phone’s IMEI number is, in every practical sense, its identity. It’s the one permanent marker that tells every carrier, every network, and every national blacklist database exactly which device is trying to connect. So it’s completely natural to wonder — can you change it? What would happen if you did? And is it even legal?
The short, honest answer: technically, yes, it’s possible to alter an IMEI on certain devices using specialized tools. But legally and practically, doing so is a serious criminal offense in most countries, including the United States. And the consequences — criminal charges, device seizure, and permanent network bans — are very real.
This guide walks through everything you need to know: how IMEI numbers work, the technical methods people attempt, the legal framework in the US and globally, why you should never try to change one, and what your real options are if you’re dealing with a genuine device issue.
What Is an IMEI Number and Why Does It Matter?
Before understanding whether an IMEI can be changed, it helps to know exactly what it is and why it exists.
IMEI stands for International Mobile Equipment Identity. It’s a unique 15-digit number permanently assigned to your phone’s hardware at the factory. Every smartphone, feature phone, tablet with cellular capability, and mobile hotspot has one. Dual-SIM devices actually have two — one per SIM slot.
When your phone connects to a mobile network, it doesn’t just identify your SIM — it identifies your device through its IMEI. Carriers use this number to authenticate your hardware, apply network policies, and check it against blacklist databases before allowing access. If your device’s IMEI appears on a stolen or blocked list, the network refuses to connect — regardless of which SIM is inserted.
Think of the IMEI as the serial number that matters to the network. Your SIM card identifies your account. Your IMEI identifies your phone.
To understand the full picture of how this identifier is structured and what each digit means, our guide on IMEI number structure breaks it down in detail.
Can You Technically Change an IMEI Number?
Here’s where it gets nuanced. The honest answer is: it depends on the device and the method used.
How IMEI Is Stored
On most modern smartphones, the IMEI is stored in two key places:
- The baseband chip (modem firmware): This is the primary, hardware-level storage. It’s part of the device’s cellular radio chip and is programmed at the factory.
- Non-volatile memory (NVM/NVRAM): A writable memory area used by the baseband processor to read device identifiers when connecting to a network.
On older or lower-security devices, particularly some Android phones running older chipsets, the NVRAM was relatively accessible to software-level tools. This created a window through which unscrupulous developers built “IMEI changer” apps and software kits.
On modern devices — especially iPhones, flagship Android phones, and any device made in the last few years — the IMEI is locked at the hardware level. Apple’s Secure Enclave and equivalent protections on newer Qualcomm and MediaTek chipsets make software-based IMEI changes effectively impossible without physically modifying the hardware.
Methods Historically Used to Alter IMEI
People who’ve attempted IMEI modification typically used one of these approaches:
- Baseband flashing: Reprogramming the modem firmware through specialized tools, often requiring a PC and unlocked bootloader. This is difficult, risky, and increasingly blocked by manufacturers.
- NVRAM editors: Software tools that rewrite the memory areas where the IMEI is cached. These tools exist for certain Android chipsets and are sold on underground forums.
- Hardware-level chip reprogramming: Physically accessing and reprogramming the baseband chip. This requires specialized equipment, technical expertise, and physically opening the device.
- “IMEI changer” apps: Most of these are either complete scams that do nothing, or they temporarily spoof an IMEI in software without actually changing what the network sees — which means they don’t work for any practical purpose, legitimate or otherwise.
The key point: even when these methods technically work, they don’t work invisibly. Networks have grown dramatically better at detecting altered or cloned IMEIs, and the consequences of being caught are severe.
Is Changing Your IMEI Illegal?
Yes — in the United States and in virtually every country with developed telecommunications law, IMEI modification is a criminal offense.
In the United States
Under 18 U.S.C. § 1029, tampering with mobile device identifiers — including the IMEI — is covered under federal computer fraud and identity fraud statutes. Additionally, the Wireless Telephone Protection Act specifically addresses unauthorized modifications to mobile device hardware. Penalties can include fines and federal imprisonment.
Beyond federal law, many states have their own statutes that compound liability for device fraud and identity tampering.
In the United Kingdom
Section 40 of the Criminal Justice Act 1988, as amended by the Mobile Telephones (Reprogramming) Act 2002, makes it a criminal offense to change, alter, or re-program the IMEI of a mobile phone. Conviction can result in up to five years in prison.
In India
India’s Information Technology Act and Telecom laws prohibit unauthorized IMEI modification. Given India’s CEIR system — one of the most robust national IMEI registries in the world — unauthorized changes are quickly detected when a device attempts to register on a network.
Globally
Countries including Australia, Canada, Germany, France, and the UAE all have specific laws making IMEI alteration illegal. The GSMA, which governs the global mobile identity framework, actively works with law enforcement agencies worldwide to flag and pursue cases of IMEI fraud.
The legal picture is consistent: changing your IMEI — for any reason, under almost any circumstance — exposes you to criminal prosecution. There is no legitimate personal reason a phone owner would need to change their IMEI, which is part of why these laws carry such significant penalties.
Our dedicated guide on IMEI tracking legality covers the legal framework in greater depth across multiple jurisdictions.
Why Do People Try to Change Their IMEI?
Understanding the motivations helps explain why this is such a heavily policed area.
The overwhelming majority of IMEI modification attempts fall into these categories:
- Bypassing blacklists: A stolen phone with a blacklisted IMEI cannot connect to a network. Criminals attempt to change the IMEI to restore network access and resell the device.
- Avoiding law enforcement tracking: Since IMEI can be used by carriers to assist police investigations with proper authorization, some criminals try to change their IMEI to avoid detection.
- Reselling cloned devices: Fraudsters copy a legitimate IMEI onto a stolen or counterfeit phone to make it appear clean on blacklist checks.
- Circumventing carrier restrictions: Some users attempt IMEI changes to bypass carrier locks or activation restrictions, though this rarely works and is still illegal.
None of these are situations a legitimate phone owner would find themselves in. If you’re dealing with a genuine device issue — like a blacklist error, a carrier restriction, or a warranty dispute — there are legal channels available that don’t involve criminal risk.
To understand how blacklists are built and maintained, and how carriers detect manipulation, read our full breakdown of how IMEI blacklisting works.
What Happens If You Try to Change Your IMEI?
Even setting aside the legal risk, IMEI modification has significant practical consequences:
The network will likely detect it. Modern EIR (Equipment Identity Register) systems are designed to flag anomalies. If an IMEI suddenly appears on a device class it wasn’t registered to, or if the same IMEI appears to be active in two locations simultaneously, both instances get flagged for investigation. Carriers share this data through GSMA’s global systems.
You could permanently damage your phone. Flashing baseband firmware incorrectly can permanently brick your device’s cellular functions. The phone may cease to function as a phone at all — not just on one carrier, but on any network, permanently.
Your original IMEI is still on record. Changing the software-reported IMEI doesn’t erase your device’s history from carrier records or GSMA databases. Law enforcement can still trace original hardware.
You void any warranty or manufacturer support. Any evidence of firmware tampering voids manufacturer warranties immediately and makes service claims unprocessable.
Criminal liability follows the device, not just the person. If a device with a tampered IMEI is associated with fraud, theft, or criminal activity, proving you weren’t aware of the modification is difficult — and explaining why you attempted it is even harder.
What About IMEI “Repair” Services?
You may have seen advertisements from services claiming to “fix,” “restore,” or “repair” an IMEI. This is a space rife with scams and criminal operations.
There are a small number of legitimate scenarios where an IMEI can be corrected:
- Manufacturer factory error: If a phone leaves the factory with a corrupted or duplicate IMEI (extremely rare), the manufacturer can issue a corrected firmware update or device replacement.
- Carrier database errors: If your IMEI was wrongly entered into a blacklist database — for example, due to a billing dispute that was later resolved — the original reporting carrier can request a removal through official channels.
Neither of these involves a third party “repairing” your IMEI. They involve working directly with your manufacturer or carrier through documented, verified processes.
Any website or individual claiming they can unlock a blacklisted IMEI, restore a banned phone, or reprogram a device identifier for a fee is almost certainly running a scam — and using their service puts you at legal risk regardless.
For guidance on how legitimate blacklist removal works, our IMEI blacklisting guide explains the official dispute and removal process through authorized channels.
What Are Your Legal Options If You Have an IMEI Problem?
If you’re reading this because you have a genuine problem involving your IMEI — a wrongful blacklist, a device that won’t connect, or concerns about a used phone you purchased — here are the legitimate paths forward:
If Your Phone Was Wrongfully Blacklisted
Contact the carrier that originally reported the device. Explain the situation, provide documentation (purchase receipt, account details, ID), and request a formal review. If the blacklist entry was made in error or after a billing dispute was resolved, the carrier is required to provide a path for removal.
If You Bought a Phone That Turned Out to Be Blacklisted
This is unfortunately common in informal used-phone markets. Your options are to pursue the seller in small claims court, report the seller to the FTC or your state’s consumer protection office, and report the device to the carrier or CTIA Stolen Phone Checker. You won’t likely be able to use the phone, but legal and consumer protection channels exist.
To protect yourself before this happens, always check a device’s IMEI status before purchasing a used phone.
If You Suspect Your IMEI Has Been Cloned
Signs of cloning include unexpected network drops, duplicate SIM errors, or charges you didn’t make. Contact your carrier’s fraud department immediately. They have tools to detect duplicate IMEI activity and can take action to protect your account. For more on cloning tactics and what to watch for, our IMEI security and privacy guide covers the warning signs in depth.
If Your Phone Is Stolen
Report the theft to your carrier and to local law enforcement immediately. Provide your IMEI so your carrier can add the device to national blacklist databases. The faster you act, the wider the block spreads across networks. Full step-by-step instructions are in our stolen phone IMEI block guide.
How to Find and Safeguard Your IMEI Right Now
Since your IMEI is so central to your phone’s identity and your ability to protect it, knowing where to find it is essential.
The fastest method on any phone: dial *#06# and the IMEI appears immediately on screen. You can also find it at Settings → About Phone → IMEI on Android, or Settings → General → About on iPhone. On iPhones, it’s also visible in iCloud under your devices list — which is particularly useful if your phone is lost.
Once you have your IMEI, store it somewhere safe: a secure note in your email account, a photo in cloud storage, or written on paper kept with your important documents. You’ll be grateful you did if your phone is ever lost or stolen.
For model-specific guides on finding your IMEI, including step-by-step walkthroughs for Samsung, iPhone, Android, and more, browse the complete IMEI finder guides on this site.
FAQ Schema — People Also Ask
Can I change my IMEI number legally?
No. Changing an IMEI is illegal in the United States and in most countries worldwide. Federal law in the US prohibits unauthorized modification of mobile device identifiers, and conviction can result in fines and imprisonment. There is no legal method for a private individual to change their own IMEI outside of a manufacturer-authorized firmware correction.
What happens if you change your IMEI?
If an IMEI is altered, the network’s EIR (Equipment Identity Register) systems are designed to detect the anomaly. The device may be flagged, blocked, or reported to law enforcement. Additionally, modifying baseband firmware incorrectly can permanently damage the cellular functionality of the phone.
Can IMEI be changed on Android?
Some older Android devices with less secure chipsets were historically vulnerable to IMEI changes through baseband tools or NVRAM editors. On modern Android devices, IMEI is stored in locked hardware regions that cannot be overwritten through software. Any attempt is both technically very difficult and illegal.
Is there any app that can change IMEI?
No legitimate app can change an IMEI on a modern smartphone. Apps that claim to do this are either scams, do nothing to the actual IMEI visible to networks, or are designed to collect your device data fraudulently. Do not download or use them.
Why would someone want to change their IMEI?
The primary motivations are to bypass network blacklists on stolen phones, avoid carrier detection, or resell fraudulent devices. All of these are criminal activities. There is no legitimate personal or business reason a law-abiding user would need to change their IMEI.
Can police track a phone with a changed IMEI?
Potentially yes. Even if the software-reported IMEI has been altered, law enforcement can work with carriers to trace original hardware identifiers, activation records, and location history tied to the device’s original legitimate IMEI. Altered IMEIs do not make a phone untraceable.
What should I do if my phone is blacklisted by mistake?
Contact the carrier that placed the original blacklist report. Provide documentation showing the error — such as proof of purchase, account ownership, and resolution of any billing dispute. Carriers in the US are required to provide a process for disputing wrongful blacklisting.
Is IMEI cloning different from changing an IMEI?
Yes, but both are illegal. IMEI cloning copies a legitimate IMEI onto a different device, making a stolen or counterfeit phone appear clean on blacklist checks. Changing an IMEI replaces an existing IMEI with a different one. Both activities are criminal offenses in most jurisdictions.
Final Thoughts
Your IMEI is one of the most fundamental layers of your phone’s identity and your own protection as a phone owner. It’s what allows you to block a stolen device, verify a used phone before buying, and give law enforcement the tools they need to help in a theft case.
Changing it — even if you could — would strip away those protections, expose you to serious legal consequences, and very likely result in a bricked or permanently banned device. The risks aren’t theoretical; they’re well-documented and actively enforced.
If you’re dealing with a real IMEI-related problem, the right path is always through official channels: your carrier, the manufacturer, or the national blacklist registry for your country.
Start by knowing your IMEI, keeping it safe, and understanding how the system that protects it actually works. Everything else follows from there.