Dell Inspiron laptop: Battery light blinks 1 amber, 1 white
Trusted Platform Module (TPM) failure, found by the built-in self-test (M-BIST). The TPM is the security chip on the system board.
Applies to: Inspiron laptops, the section for models from 2020 to 2025 (Dell article 000140521). Dell says the diagnostic indicators may vary across different models and to see the documentation of your Dell laptop for device-specific information, so check your model.
What Dell says to do
Dell’s page gives no step you can do from outside the laptop for this state.
Dell says to contact Dell Technical Support for further troubleshooting.
No repair advice of our own: semiatic gives no repair instructions of its own; beyond Dell’s steps, ask Dell Technical Support. What that means.
Counting the code and which Dell Inspiron models this table covers: reading Dell Inspiron blinks.
Source
Dell’s own support page, read on the date shown.
- Dell Technologies Support: A Reference Guide to Inspiron Laptop Diagnostic Indicators — Inspiron laptops, the section for models from 2020 to 2025 (Dell article 000140521). www.dell.com Checked 2026-09-29.
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