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Useful Phone Secret Codes That Still Work (and the Nokia Classics)

Old and new mobile phones

Short answer: the classic Nokia secret codes belonged to those old feature phones and mostly do not work anymore, but some universal codes (like *#06# for IMEI) still work on almost any phone, and modern Android has its own useful codes. Here are the ones worth knowing today, plus the Nokia classics for nostalgia.

Codes that still work on almost any phone

  • *#06#, shows your IMEI number instantly (works on virtually every phone, essential if it is ever lost or stolen).

That one is genuinely universal and useful, note your IMEI down somewhere safe now.

Useful codes on modern Android

CodeWhat it does
*#06#Show IMEI
*#*#4636#*#*Testing/info menu (phone, battery, usage) on many devices
Carrier USSD (e.g. *121#)Balance/data, varies by carrier

Note: many old diagnostic codes are blocked on modern phones for security, and some vary by manufacturer, so not every code works on every device.

The Nokia classics (for nostalgia)

On the old Nokia feature phones, codes like *#0000# (firmware version) and *#92702689# (the "warranty/life timer" menu) were famous. They were tied to that Symbian/S40 era of hardware and generally do not apply to today's smartphones, fun to remember, but not practical now.

The non-obvious tip: save your IMEI before you ever need it

The single most useful code here is *#06#. Run it today and write down your IMEI (or photograph it) and keep it somewhere separate from your phone. If your phone is ever lost or stolen, that IMEI is what police and your carrier need to block or trace it, and you cannot look it up once the phone is gone. Doing this one-minute step now is worth more than every other code combined.

Frequently asked questions

Do old Nokia secret codes still work?

Mostly no. Codes like *#92702689# were tied to old Nokia feature phones and generally do not work on modern smartphones. Some universal codes like *#06# still work everywhere.

What phone code works on almost any device?

*#06# shows your IMEI number instantly and works on virtually every phone. It is essential to note down in case your phone is lost or stolen.

What useful codes work on Android?

*#06# for IMEI and, on many devices, *#*#4636#*#* for a testing/info menu. Carrier USSD codes like *121# check balance or data but vary by carrier.

Why should I save my IMEI?

If your phone is lost or stolen, your carrier and police need the IMEI to block or trace it, and you cannot retrieve it once the phone is gone. Save it now with *#06#.

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