Yes, it's generally best to put the SIM card in your new phone before you power it on for the first time, or at least before completing the initial setup, as it helps the phone activate with your carrier and link your number for verification, ensuring seamless service and account setup. While you can often insert it later, doing it first ensures your phone immediately gets network access for calls, texts, and data, and allows services to verify your login via your number during setup.
To transfer everything to your new phone, charge both devices, connect to Wi-Fi, and use the on-screen setup prompts to copy data wirelessly or with a USB cable from your old phone (Android to Android) by signing into your Google Account and restoring a backup or directly transferring apps, contacts, photos, and settings, with app-specific data like WhatsApp often needing separate in-app backups.
Transferring or copying personal user data from one phone to another should not require a SIM active. It can actually make for a more seamless transfer if a SIM is not present - if you want a new phone to have your existing user data installed first.
Yes, you can transfer your SIM card to another phone, and it should automatically work as long as the following conditions are met: Compatibility: The new phone must be compatible with the same carrier network as your current phone.
It doesn't really matter much, you can do both.
How to activate SIM card on Android
When you are ready to get a new phone, here are some simple steps to follow to remove that personal information before you turn in the phone.
Unlocked phones aren't tied to a particular mobile carrier and can accept SIM cards from multiple cellular providers. You can insert your SIM card into an unlocked phone and it will function seamlessly, allowing you to continue using your existing phone number and cellular service.
Your phone number is not permanently linked to your SIM card. Number portability allows you to switch operators or SIM cards while keeping your number. You can change your number without replacing your SIM card by contacting your operator.
When you set up your new device, you can move your data from your old Android device to your new Android device. Important: If you are transferring data from an old Android device to a Pixel 8 or Pixel 8 Pro, visit the Pixel Help Center.
Yes, as long as the Sim card is the same size.
To use your new smartphone, simply insert your SIM card, then turn the phone on by pressing and holding the power button on the right side of the phone until you feel it vibrate and the Samsung logo appears. The phone will then prompt you through the initial set-up.
Activate your phone.
Activating your new smartphone is a necessary step to get started. Here are a few things you can do to ensure the activation process is simple and seamless: Turn off your old phone prior to turning on and activating your new phone. Fully charge your new phone before starting the activation process.
Regardless of the device you're switching from, don't switch your SIM card until the entire transfer is complete.
Contacts or calendar events
Only contacts and calendar events that aren't synced to an account are transferred. If it's synced to an account, it won't transfer during setup. To re-sync the information to your Android device, sign in to your associated account in Settings.
You may be able to just move your current SIM card from your old phone to the new one, but in some cases, that old SIM card may not be compatible with your new phone. For example, if your last phone took a micro SIM card but the new one takes a nano SIM card, your old SIM just won't fit.
Does a SIM card hold pictures? Photos aren't stored on your SIM card, which makes it important to back up your photos if you ever decide to switch your SIM card out. If you have an iPhone, consider saving them to iCloud, or if you have an Android, save them to your SD card.
If you're on Android, you'll typically need to open Contacts app, go into the Settings menu and look for Import or Export Contacts. Then you can move the contacts from your SIM card to your phone.
Yes, you can activate a new cell phone by yourself, whether you want to set up a new iPhone or activate a new Samsung Galaxy S25. But how you go about activating your cell phone may depend on what kind of device you have.
Inspect the SIM card
Check for signs of wear or damage like scratches, cracks, or dirt. Even minor damage can prevent your phone from reading the card properly.
If your new phone takes the same SIM card size as your current SIM card, you don't need to do a SIM swap. Just take your current SIM card and put it in your new phone.
How to transfer data between Android phones1:
The science behind battery wear
Keeping these batteries near full charge for long stretches of time puts additional voltage stress on the cathode and electrolyte. This is why many devices use "trickle charging" or temporarily pause at 100%, topping up only when needed.
Dialing *#21# on your phone checks the status of your unconditional call forwarding, revealing if your calls, texts, or data are being redirected to another number without you knowing, often without leaving traces on your phone bill; it's a standard network code to see your carrier's call forwarding settings, not a definitive "hacking" tool, but useful for detecting unauthorized forwarding.