# PicoCalc SD cards cant be read

**URL:** <https://forum.clockworkpi.com/t/picocalc-sd-cards-cant-be-read/20843>\
**Category:** PicoCalc\
**Tags:** help\
**Created:** [December 24, 2025, 3:45pm UTC](https://forum.clockworkpi.com/t/picocalc-sd-cards-cant-be-read/20843 "2025-12-24T15:45:31Z")\
**Posts on this page:** 1\
**Showing post:** 22

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**Author:** ![ernst](https://avatars.discourse-cdn.com/v4/letter/e/9f8e36/32.png) [@ernst](https://forum.clockworkpi.com/u/ernst)\
**Post date:** [December 27, 2025, 8:14pm UTC](https://forum.clockworkpi.com/t/picocalc-sd-cards-cant-be-read/20843/22 "2025-12-27T20:14:01Z")

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Reading is very important, what did I write ? WIFI + PSRAM, not Wifi only.

[https://forum.clockworkpi.com/t/can-psram-be-used-on-pimoroni-pico-plus-2w/18127](https://forum.clockworkpi.com/t/can-psram-be-used-on-pimoroni-pico-plus-2w/18127)

I can confirm, I studied the source code, I know why it does not work and I know why the author will not change that fact. Maybe I should ……

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