Ed from Pittsburgh writes:
I purchased a new cell phone and kept the same provider on the new phone as the one on the old phone. Can I use the SIM card from the old phone and insert it in the new one. If so will it keep the original data?
The SIM card allows your phone to have a phone number and to work with a 3G and 4G signal and also stores your contacts and text messages.
The SIM card does not keep files like your photos, documents and music or apps. Items like that are saved on memory cards. As long as both phones have slots for memory cards (a micro SD is pictured below), you should be able to just take the old card out and insert it into the new phone. Anything that’s saved to the card like photos and music should then be accessible.
Since you are using the same provider, it may not be necessary to transfer the SIM card. If you are transferring between the same operating system (swapping one Android phone for a newer Android or an iPhone for a newer iPhone) You should be able to log onto your Google or Apple account and your apps should automatically transfer (if they don’t you can re-download them at no charge from your app store.) If your contacts are backed up, they will be downloaded automatically as well.
If the contacts are not backed up in the cloud, you may be able to switch the SIM card. That’s assuming the cards are the same size and work on the same frequency. I would probably just go to the physical store location for my provider to transfer the data. But if you have a steady hand and a brave heart, you may want to try it.