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Old Smartphones to good use - the 5 best tips

  • Jan 29, 2026
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If you have an old Smartphone but don't know how to use it is useful, then read this practical tip. Here you will find the five tips to get the most out of your old Smartphone.

1. Old Smartphone as a second phone to use

You can use your old phone as a replacement phone. If your new Smartphone for a canoe-Tour or the visit to the beach is too bad, so the Old one can exploit its potential to the full. Because if the veteran unit should be broken or lost, is not the loss so bad. Make calls, write messages, and photos you can also with older Smartphones

2. With the Smartphone experiment

If you have bought a new Smartphone, then you can experiment now with your old device. Try one of the popular Custom ROM "CyanogenMod" on your old Android from. Also, iOS users will get their costs: A "Jailbreak" allows you to get full access to the file system of your smartphone. Especially in the case of new Smartphones inexperienced users are unsure whether they should dare to do something, because by the deep interventions into the phone's software, the warranty of the device may be lost.
  • If you have a Custom Rom on your old Smartphone installed, then you can in the next step, try all the benefits of CyanogenMod on your new Smartphone to use.
Popular Custom-ROM

3. You do something good - Smartphone recycle

You have no more use for your old Smartphone then you are doing something for the environment and you recycle it. In many ways this is positive:
  1. You do something for the environment and reduce the consumption of raw materials. The Smartphone contains many parts that can be recycled through your Initiative again.
  2. Most of the adoption agencies age Smartphones, such as, for example, Church communities, forward the phone, not only to Recycling organisations, but also donate a small amount of money for the sick and needy people.
  3. Many telecommunications companies motivate their customers to recycle: companies such as "O2" in support of the animal protection organization "WWF" and "Telekom" money to be donated to the "Deutsche umwelthilfe". Simply ask your contractor, what this is doing.
  4. Tip for the next-Smartphone-purchase: A very special Smartphone is the so-called "Fairphone". It is eco-friendly and made from renewable raw materials, produced under fair conditions.
The "Fair Phone"

4. Multi-Function-Smartphone

Just as well you can use your old mobile as a multi-function Tool to use. If you now have a new Smartphone, then use your old device for a variety of purposes such as:
  • Old Smartphone as a navigation device: you always come to the destination and you need a new Navi to buy. Free services such as "Google Maps" is one of the best navigation systems.
  • The mobile alarm system: If you sleep at Night in addition to your new Smartphone, you can play the old Smartphone to their personal guards. Apps such as "Mobile Alarm System" to use the phone sensors to keep you from burglars to warn. Particularly in the vacation, it could prove to be useful.
  • Radio on your Smartphone: Plug in your old device to the music system and stream radio Apps like "TuneIn Radio". So you would not be disturbed in the case of incoming messages or phone calls, not while listening to music.
Smartphone as a navigation device

5. You sell your Smartphone

Often well-preserved cell phones have a surprisingly high residual value. You do not need a second mobile phone, so you can sell it on the Internet for good money. These pages are particularly suitable for:
  • www.ebay.de; also available as App
  • The mobile App of the "reBuy" or the Website "Wirkaufens"
  • Search also "Facebook" groups, which allow them to have their old stuff to sell. Often, an offer for sale on your Facebook wall is worth it.
If you have your Smartphone you want to keep and, for example, as a Second phone to use, then we will show you in this practice tip, such as your mobile phone-reception can improve.

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