If you’ve lost your iPhone, there are a few things you can do to help it reset. First, try resetting it to factory settings. This will erase all your data and start from scratch. If that doesn’t work, you can try restoring it to a previous backup or iCloud account. Finally, if all of those options don’t work or you just want to be sure your phone is still working properly, you can take it to an Apple store and have it checked out.