Key Takeaways
- Back up all your data before doing anything else — it's the single most important step.
- Your current device's trade-in value can drop significantly once a new model is announced.
- Unlocking your phone before switching gives you more flexibility with carriers.
- Review your current plan carefully — upgrading doesn't always mean switching carriers.
- Transfer contacts, photos, and app data intentionally; automatic transfers can miss things.
Summary
18 items · 30–60 minutes
Why a Checklist Matters Before You Upgrade
Upgrading your smartphone feels exciting — until you realize you've lost two years of photos, owe an early termination fee, or can't get your new phone to work on your carrier's network. A little preparation eliminates most of those surprises.
This checklist is designed for anyone replacing a phone — whether you're staying with the same carrier, switching to a new one, or simply handing down your old device. If you're newer to smartphones and want broader context first, our beginner's guide to smartphones covers the foundational decisions worth understanding before you dive in.
Work through these steps in order — several of them depend on completing the ones before them.
Cloud Storage Account (Google One, iCloud, or similar)
Used to back up photos, contacts, and app data before the transfer.
Manufacturer Transfer App (e.g., Move to iOS, Smart Switch)
Facilitates a direct wireless transfer of data between your old and new devices.
Account Number and PIN from Current Carrier
Required if you plan to port your phone number to a new carrier.
USB-C or Lightning Cable and Adapter
Some transfer methods use a wired connection for faster, more reliable data migration.
The Full Pre-Upgrade Checklist
Use the groups below to move through your upgrade methodically. Mark off each item as you go — rushing any of these steps is where most upgrade headaches begin.
Back Up Your Data
Understand Your Current Contract and Trade-In Value
Check Device Compatibility
Review Your Plan
Prepare for the Transfer
Remove Activation Lock Before Trading In
Both Apple and Android devices have activation locks tied to your account that prevent unauthorized use — but they also prevent the next owner from setting up the device. Sign out of your Apple ID or remove your Google account from the device before resetting it. Skipping this step is the most common reason trade-in devices are rejected or returned.
A Few Things Worth Knowing About Carrier Switches
If your upgrade involves moving to a different carrier, there are a few extra considerations beyond the checklist above. Most importantly, confirm that your new device — or your existing unlocked device — is compatible with the new carrier's network bands. A phone built primarily for one carrier's infrastructure may have limited functionality on another.
Number porting (keeping your existing phone number when you switch) is a right under FCC rules, but the process requires your account number and PIN from your current carrier. Don't cancel your old service before the port is confirmed complete — cancelling first can make porting significantly harder. Our guide to switching carriers without losing your number walks through that process in detail.
Don't Cancel Your Old Service Too Soon
If you're switching carriers and porting your number, keep your old account active until the port is fully confirmed on the new carrier's end. Cancelling your old service first can interrupt or permanently complicate the transfer of your number. Only cancel once you've verified calls and texts are working on the new line.
Once you've verified your new service is active and your number has transferred, you can safely deactivate or recycle your old device.