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(Pocket-lint) - We live in a world that is rapidly changing when it comes to technology. No sooner have you bought the latest smartphone, a newer, shinier and more advanced device has superseded it.

It's pretty annoying. One minute you have the best phone out there with the latest and greatest tech, and the next minute you have a device that's only 12 months old but it might as well be a decade.

That's easily rectified though. MusicMagpie is an online recycling service and store that buys and sells used gadgets, which means you could sell your old smartphone and use the cash to put towards a newer model. It's super easy to do and musicMagpie operates an Electronic Price Promise that means whatever it quotes you for your old device, you'll get that full amount or your electronics will be sent back to you for free.

To sell your old smartphone, you'll need to head to the musicMagpie site and click on the Sell Electronics section. You'll then need to type in the device you want to sell into the search box and pick the correct model from the drop down list. Following this, you'll need to select one of the three conditions available, after which you'll be given an instant offer price.

If you're happy with the quote, add the device to your basket, accept the terms and conditions, choose how you want to be paid and decide how you want to send the device to musicMagpie - both options are free. Bank transfers are paid on the same day musicMagpie receives your device so you'll be able to put it towards buying a new smartphone the next day.

If you want to find out roughly how much your old device could be worth, head to the gallery where you will find six smartphones that have all been superseded by new models.

Want to sell your old phone? Check out Pocket-lint's preferred recycling partner musicMagpie.co.uk / declutter.com to find out how much money you can get for it.