Is your old smartphone gathering dust in a drawer? Don't rush to throw it away! Even a 5-year-old device can be useful if you know how to use it correctly. In this article we will analyze Android-is your smartphone gathering dust in a drawer? Don't rush to throw it away! Even a 5-year-old device can be useful if you know how to use it correctly. In this article we will look at all possible options: from sale and scrapping to unexpected repurposing into a smart device for the home or work tool.

Modern smartphones last on average 2-3 years of active use, but their hardware capabilities often remain relevant much longer. For example, Samsung Galaxy S8 (2017) is still capable of performing mid-level tasks, and Xiaomi Redmi Note 5 —working as a media center or IP camera. The main thing is correctly assess the condition of the device and choose the optimal scenario for its further operation.

Before making a decision, check:

  • 🔋 Condition of the battery (if it is swollen or holds a charge for less than 2 hours - go straight to point o recycling)
  • 📱 Performance of the screen, buttons and connectors (cracks, “dead” zones or faulty USB-C narrow the options for use)
  • 🔄 Ability to update the firmware (on Android 8.0 and newer, more functions are available for secondary use)

📊 What do you plan to do with your old smartphone?
Sell or exchange
Use as a spare
Convert into a smart gadget
Recycle
Not decided yet

1. Sale or exchange: how to get the maximum

If the device is in good condition, it can be sell on the secondary marketThe price will depend on the model, year of manufacture and technical condition. data-i="57">(2018) in working condition costs ~5-7 thousand rubles, and Google Pixel 3 (2018) in working condition costs ~5-7 thousand rubles, and Huawei P30 Pro - up to 15 thousand rubles.

Where to sell:

  • 📱 Avito/Yula: quick sale, but requires a personal meeting (risk of fraud - only cash payment when checking the device!)
  • 💳 Marketplaces (Ozon, Wildberries, Yandex Market): safer, but commission up to 15% and strict packaging requirements
  • 🔄 Trade-in services (Svyaznoy, MTS, SberMegaMarket): exchange for a new gadget at a discount (profitable if you are planning an upgrade)

Before selling required:

  1. Reset the device to factory settings (Settings → System → Reset).
  2. Delete all accounts (Google, Samsung, Mi Account etc.) - otherwise the new owner will be able to restore your data!
  3. Check the IMEI on the website SNDeeP —if the phone is on the black list (stolen/pawned), you cannot sell it.

💡

Take a photo of the serial number (on the case or under the battery) and IMEI before selling. This will help prove that the device belonged to you if any problems arise. disputes.

⚠️ Attention: If the smartphone was purchased on credit or lease, check whether it is listed as collateral with the bank. Selling such a device may lead to a lawsuit!

2. Backup device: how to prepare a spare phone

An old smartphone can become a reliable spare device in case the main one breaks down. It is especially important if you have:

  • 🎒 Frequent business trips or travel (risk of loss/theft of the main phone)
  • 🏃 Active lifestyle (running, gym, hiking - where you can damage the main gadget)
  • 👨‍💼 Working with confidential data (a spare phone without unnecessary applications is safer)

How to prepare a spare smartphone:

  1. Update the firmware to the latest available version (even if it is Android 9, critical security fixes are important).
  2. Install a minimum set of applications: instant messengers (Telegram, WhatsApp), maps (Google Maps or 2GIS), banking application (if necessary).
  3. Disable automatic application updates (Settings → Applications → Auto-update) - this will save traffic and battery.
  4. Activate energy saving mode and disable the background activity of unnecessary services.

☑️ Preparing a spare phone

Done: 0 / 5

If the spare phone has WhatsApp or Telegram, set up two-step authentication and link a backup email. This will protect your accounts if your main phone is lost.

⚠️ Attention: Do not store passwords for your main accounts on your backup phone (for example, Google or Apple ID).For this, use specialized password managers like Bitwarden or KeePass.

3. data-i="121">An old smartphone can be turned into

An old smartphone can be turned into a full-fledged smart device for home or office. Here are the most popular options:

Purpose Required applications Phone requirements
IP surveillance camera AlfredCamera, Manything, IP Webcam Working main camera, access to Wi-Fi
Media center (Smart TV) Kodi, Plex, YouTube HDMI output (or MHL adapter), power from Snapdragon 625
Smart alarm clock/radio Sleep as Android, TuneIn Radio Working speakers, Internet access
Remote control for equipment Unified Remote, Yatse Infrared port (or Bluetooth/Wi-Fi)
Server for files/torrents Solid Explorer, uTorrent, Termux From 16 GB of memory, stable power supply

For conversion to IP camera:

  1. Install AlfredCamera (there is a free version).
  2. Register an account and add the device as a camera.
  3. Set up motion notifications (Motion Detection).
  4. Fix the phone on a tripod or wall (can be used 3D printing for mounting).

If you want to make a phone media center, connect it to the TV via HDMI (you will need an adapter USB-C/MicroUSB → HDMI, for example, from Baseus or UGREEN). Then install Kodi and configure access to network folders or cloud storage.

How to connect a smartphone to a TV without HDMI?

If the TV does not have an HDMI port or adapter, use Google Cast (built-in YouTube, Netflix) or Miracast (wireless screen transfer). To do this, both devices must be connected to the same Wi-Fi network. On your phone, activate the option Screen transfer in connection settings.

4. Game console or retro game emulator

Even smartphones that are weak by modern standards (for example, with a processor Snapdragon 430 or Helio P20) are capable of running emulators of old consoles:

  • 🎮 Nintendo 64, PlayStation 1 - 2 GB of RAM is enough for this. Android 7.0+ and 2 GB of RAM.
  • 🕹️ SEGA Genesis, Game Boy Advance - work even on budget models like Redmi 4A.
  • 🖥️ PC games (up to 2010) - via Exagear (paid) or Wine (for simple projects).

The best emulators for Android:

  • RetroArch - a universal emulator with support for dozens systems.
  • ePSXe — for PlayStation 1 (requires BIOS, which must be downloaded separately).
  • Dolphin MMJ — for Nintendo GameCube/Wii (requires a powerful processor, for example, Snapdragon 835+).
  • My OldBoy! — for Game Boy (optimized for weak devices).

For convenient play, connect gamepad to Bluetooth (for example, Xiaomi Gamepad or 8BitDo). If you don't have a gamepad, use Touch Controls in the emulator settings - many support customizing the button layout.

💡

For smooth gameplay on emulators, disable background processes and activate performance mode in the battery settings.

If want to play modern mobile games (for example, Genshin Impact or Call of Duty Mobile), check the minimum requirements:

  • Genshin Impact: Snapdragon 845/Kirin 980 + 6 GB RAM.
  • PUBG Mobile: Snapdragon 660/Helio G90 + 4 GB of RAM (at minimum settings).
  • Roblox: almost any smartphone with Android 5.0+.

5. Working tool: from scanner to server

An old smartphone can become a useful assistant in your work, especially if your activity is related to:

  • 📦 Logistics: use it as a barcode scanner (Barcode Scanner, Zebra Scanner).
  • 📸 Photography: remote control for the camera (DSLR Controller for Canon/Nikon).
  • 📊 Analytics: dashboard for data monitoring (Grafana via browser).
  • 🔧 Equipment repair: multimeter (Physics Toolbox) or oscilloscope (Oscilloscope).

For office tasks you can configure:

  • Second screen for a laptop via Spacedesk or Duet Display (need USB/Wi-Fi).
  • Document scanner using CamScanner or Adobe Scan (automatic alignment and export to PDF).
  • Voice assistant for notes (Otter.ai recognizes speech and converts to text).

If you developer, the old smartphone will be useful for:

  • Testing applications on old versions Android.
  • Debugging ADB-commands (for example, to automate actions).
  • Launch local server (Termux + Python/Node.js).

💡

To use the phone as a barcode scanner in 1C or similar systems, set up integration via Zebra Scanner SDK or Barcode to PC (data transfer via Wi-Fi to a computer).

⚠️ Attention: If the phone is used to work with confidential data (scanning passports, bank documents), turn off cloud synchronization and set up storage encryption (Settings → Security → Encryption).

6. Charity: to whom you can give your old phone

If you don’t want to sell or use it yourself, donate a device those who really need it Options:

  • 🏥 Hospitals and hospices: phones are given to patients to contact relatives (for example, foundation "Give Life" or "Vera").
  • 👨‍🎓 Schools and orphanages: for educational projects or distance learning.
  • 🌍 Environmental initiatives: some organizations collect equipment for recycling (for example, "Ecotechnopark" in Moscow).
  • 🛡️ Military and volunteers: telephones are sent to the front for communication (coordinated by funds "Return", "Defenders of the Fatherland").

Before transfer:

  1. Fully reset the settings (Settings → System → Reset).
  2. Remove the SIM card and memory card (if yes).
  3. Check the functionality of the camera, microphone and speakers.
  4. Attach a charger (if you have one).

Where to look for collection points:

  • Official websites of charitable foundations (section "Help with things").
  • Groups on social networks (for example, "Donate phone" on Facebook or VKontakte).
  • Collection points for equipment in stores (Svyaznoy, M.Video sometimes they accept devices for donation to those in need).

⚠️ Attention: Do not transfer phones with a faulty battery - this is dangerous (risk of fire). If the battery is swollen, first dispose of it correctly.

7. Recycling: how to hand over your phone to benefit the environment

If the smartphone completely fails (does not turn on, broken screen, faulty board), it need to be disposed of correctly. In ordinary garbage, batteries and microcircuits poison the environment, and when recycled, valuable metals can be extracted from them (gold, silver, palladium).

Where to drop off:

  • 🏙️ Eco-reception points: in most cities there are specialized containers (for example, "Ecotechnopark" in Moscow, "Waste reform" in the regions).
  • 📱 Electronics stores: Svyaznoy, M.Video, Eldorado accept equipment for recycling (sometimes they give a discount on a new purchase).
  • ♻️ Repurchase services for spare parts: some workshops buy faulty phones for disassembly (for example, iFixit or local repair centers).

What to do before disposal:

  1. Remove the SIM card and memory card (they can be used further).
  2. If the battery is swollen, do not try to remove it yourself take the device to a service center.
  3. Take a photo of the IMEI (on the case under the battery) - this will help track the device if it suddenly ends up in illegal circulation.

Disposal cost:

  • Free: in eco-points and some stores.
  • With payment: services like "Ecotechnics" can pay 100-500 rubles for a device (depending on the model).
  • Paid: if certified data destruction is required (relevant for corporate equipment).

💡

Never throw your smartphone into a regular trash can - lithium-ion batteries can catch fire if damaged!

8. Experiments: software testing, modding and training

If you are into technology, an old smartphone will be an excellent platform for experiments:

  • 🤖 Custom firmware: install LineageOS, Pixel Experience or GrapheneOS to extend the life of the device.
  • 🔧 Root access: unlock bootloader and get superuser rights (Magisk).
  • 💻 Linux on a smartphone: run Ubuntu Touch or PostmarketOS (suitable for Nexus, Pixelsome Xiaomi).
  • 🎓 Programming training: test your applications on a real device through Android Studio.

To install custom firmware:

  1. Unlock bootloader (for Xiaomi: fastboot oem unlock).
  2. Install TWRP Recovery (instructions are available at XDA Developers).
  3. Download the firmware (for example, LineageOS for your model) and flash through ADB Sideload.

fastboot flash recovery twrp.img

fastboot boot twrp.img


adb sideload lineage-18.1-20230501-nightly-device.zip

Risks when modding:

  • Loss of warranty (if it is still valid).
  • Possible "brick" (turning the phone into a "brick") due to a firmware error.
  • Security problems (some custom firmware contain vulnerabilities).

How to restore a phone after a brick?

If the device does not turn on after unsuccessful firmware, try:

1. Enter the mode Fastboot (Power + Vol Down).

2. Flash the stock firmware via Mi Flash Tool (For Xiaomi) or Odin (for Samsung).

3. If all else fails, contact the service center (recovery via EDL-mode).

⚠️ Attention: Before experimenting with firmware make a backup of all partitions via TWRP or ADB! This will help restore the device if something goes wrong.

Old smartphones on Android 5.0-7.0 are vulnerable to attacks through outdated libraries (for example, StagefrightIf you are using such a device for experimentation, do not connect it to important networks (for example, corporate Wi-Fi).

FAQ: Frequently asked questions about old smartphones

Can I use an old smartphone without a SIM card?

Yes, most functions will work via Wi-Fi: instant messengers (Telegram, WhatsApp), browser, games. For calls, you can use Skype, Discord or Google Voice (if available in your region).

How to check if the phone is blocked by the operator?

Insert a SIM card from another operator. If the phone requires an unlock code, it is locked to the network. Unlocking can be ordered from the operator (paid service) or through specialized services (for example, UnlockBase).

Is it worth changing the battery in an old smartphone?

If the phone is otherwise in good condition, replacing the battery can extend its life by 2-3 years. Battery cost:

  • Samsung Galaxy S7: ~1,500–2 500 rubles.
  • Xiaomi Redmi Note 4: ~800–1,500 rubles.
  • iPhone 6/7: ~2,000–3,500 rubles (although this is not Android, but for comparison).

Change the battery only in proven services - cheap analogues can swell or ignite.

Is it possible to use an old smartphone as a router?

Yes, if it supports modem mode (Settings → Network and Internet → Access point). To do this, you need a working SIM card with a tariff that includes data transfer. An alternative is to connect the phone to the Internet via Wi-Fi and distribute it via NetShare or PdaNet+.

What what to do if the phone does not turn on, but responds to charging?

Possible causes and solutions:

  1. Battery is low: leave it on charge for 1-2 hours, then try to turn it on.
  2. Firmware failure: try logging in Recovery Mode (Power + Vol Up) and do a reset.
  3. Faulty power button: connect the charger - some phones turn on automatically.
  4. Problems with the board: if nothing helps, contact service (it may have fallen off cable or power controller burnt out).