If you need to change your mobile device or perform a factory reset, you can disable 2-Step Verification for your Arduino account.
Important
To disable 2-Step Verification, you need to sign into your Arduino account. If you’ve lost access, see Recover an account protected by 2-Step Verification.
Follow these steps:
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Sign into id.arduino.cc/security.
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Find the 2 steps verification section.
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Click on Disable.
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Check the email inbox linked to your Arduino account and open the message from noreply@arduino.cc.
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Follow the instructions in the email to disable 2-step verification for your Arduino account.