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2002-0001

Nintendo 2002-0001 on Nintendo Switch: start-up or microSD card error

Verified with sources1 sourceReviewed Oct 3, 2026
Technician coming? See what they must show you
Nintendo Switch (OLED model) console with white Joy-Con
PantheraLeo1359531CC BY 4.0Image source

Risk level

Medium

Proceed carefully and stop if the check is unclear.

Urgency

Medium

Quick answer

2002-0001 can appear at start-up or at any other time and may involve the microSD card. At start-up, power off, remove the microSD card and turn the console on again. Otherwise, update the system and restart.

Safety first

Stop and check this first

  • If you restore the console, choose the option that keeps save data. Nintendo's step for this code is a restore without deleting save data, not a full initialisation.

Safe checks you can perform

  • At start-up: remove the microSD card
  • Update the system and restart the console
  • Check corrupted data and redownload the software
  • Check the microSD card

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Nintendo repair service

What a technician must be able to justify

A technician is coming

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Nintendo repair service

    What they doNintendo tests the console when 2002-0001 persists after removing the card, the system update, the card checks and the restore without deleting save data, after you book a repair from its support page.

    They must show youwhat test reproduced the fault.

    In writingwhat was repaired or replaced and the result of the test after the repair.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Checks and evidence, step by step

Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. 1

    At start-up: remove the microSD card

    No special tools

    Procedure

    Who:
    you.
    How:
    if the error shows when the console starts, power it off, remove the microSD card and press the POWER Button once to turn it on again.
    Result that matters:
    whether the console starts without the error.
    If it starts:
    the card is involved; check its compatibility and format it or use another card.
    If the error still shows:
    restore the console to factory settings without deleting save data.
    Evidence to keep:
    photo of the error screen and whether a card was inserted.

    Evidence: Nintendo Switch error code 2002-0001

  2. 2

    Update the system and restart the console

    No special tools

    Procedure

    Who:
    you.
    How:
    make sure the console has the latest system version. If it is already up to date, hold the POWER Button for three seconds, select Power Options and then Restart.
    Result that matters:
    whether the console works without the code.
    If it works:
    an outdated system or a temporary state was the cause.
    If the code returns:
    go on to the next check.
    Evidence to keep:
    system version and whether the code came back.

    Evidence: Nintendo Switch error code 2002-0001

  3. 3

    Check corrupted data and redownload the software

    No special tools

    Procedure

    Who:
    you.
    How:
    if the error happens with specific software, run Nintendo's check for corrupted data. If it continues, delete that software and download it again.
    Result that matters:
    whether the software works after the check or redownload.
    If it works:
    the software data was corrupted.
    If the error stays:
    check the microSD card.
    Evidence to keep:
    name of the software and the result of the check.

    Evidence: Nintendo Switch error code 2002-0001

  4. 4

    Check the microSD card

    No special tools

    Procedure

    Who:
    you.
    How:
    Nintendo Switch 2 is only compatible with microSD Express cards. Nintendo Switch supports microSD (up to 2 GB), microSDHC (4 GB to 32 GB) and microSDXC (64 GB to 2 TB). If the console shows more than 1 GB less than the label or packaging, contact the retailer. Then format the card, try a different compatible card, or remove it and download to the system memory.
    Result that matters:
    whether the error stops with another card or without a card.
    If it stops:
    the original card was the cause.
    If it persists with no card:
    restore the console without deleting save data; if it still shows, Nintendo says the console needs repair.
    Evidence to keep:
    card type and capacity shown on the label and in the console.

    Formatting erases everything on the microSD card. Back up screenshots and videos to a computer first.

    Evidence: Nintendo Switch error code 2002-0001

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Gaming and consoles
Brand
Nintendo
Product type
Nintendo Switch

Known code variants

  • error 2002-0001 Nintendo Switch
  • Nintendo 2002-0001
  • Nintendo error 2002-0001
  • Nintendo Switch 2002-0001
  • Switch 2 2002-0001
  • Switch error code 2002-0001

What it means

Nintendo splits 2002-0001 on Nintendo Switch 2 and Nintendo Switch by when it appears. At start-up, the steps remove the microSD card and then restore the console without deleting save data. At any other time, they cover the system version, a restart, corrupted software data, deleting and redownloading, and the microSD card (compatibility, capacity, format, another card, system memory). Nintendo says it may be an issue with the card; repair comes only after all of this.

Warnings and stop conditions

  • Mediumeditorial warning

    If you restore the console, choose the option that keeps save data. Nintendo's step for this code is a restore without deleting save data, not a full initialisation.

    Evidence: Nintendo Switch error code 2002-0001

Symptoms and causes

Probable causes · in order

  • Problem with the microSD cardCommon

    Nintendo says the error may be related to the card. The console starts without it, or works with another compatible card or after formatting.

    Evidence: Nintendo Switch error code 2002-0001

  • Outdated system or temporary statePossible

    The error stops after updating to the latest system version or a restart from Power Options.

    Evidence: Nintendo Switch error code 2002-0001

  • Corrupted software dataPossible

    Only if the error happens with specific software. The corrupted data check or a delete and redownload clears it.

    Evidence: Nintendo Switch error code 2002-0001

  • Console faultPossible

    The error persists after every step, including the restore without deleting save data. That is the case where Nintendo asks for a repair.

    Evidence: Nintendo Switch error code 2002-0001

Virtual technician

Does 2002-0001 still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Start diagnosis

Sources and technical references

  1. 1

    Nintendo Switch error code 2002-0001

    Nintendo UK Support · 2026 · official_doc

Sources: Nintendo Switch error code 2002-0001reviewed 2026-10-03 · verified

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