Swapping laptops and phones is a common practice in Nigeria, as people often look to upgrade their devices. There are several ways to swap a laptop or phone in Nigeria, including:

1. Online marketplaces: Websites like Jiji and Konga are popular platforms to buy and sell used laptops and phones in Nigeria. These marketplaces allow users to post advertisements for their devices, and potential buyers can contact the seller directly to negotiate a deal.
2. Gadget repair shops: Some gadget repair shops in Nigeria also offer laptop and phone swap services. If you have a device that you would like to swap, you can take it to one of these shops, and they will give you a quote for the device. If you agree to the quote, you can use the value of your device to purchase a different device from their inventory.
3. Social media: Another option is to use social media platforms like Facebook and Twitter to find people who are interested in swapping laptops or phones. You can post an advertisement for your device and see if anyone is interested in a trade.

It’s important to be cautious when swapping laptops or phones, as there is always a risk of fraud or getting a device that is not in good condition. Before making a swap, it’s advisable to do some research and make sure that the person you are trading with is trustworthy and that the device you are receiving is in good working order.