Red Shirt Jeff cut my Pi 4 model B in half. I thought it wouldn't work at all, but surprise surprise, it works! Well... sorta. Discover the art of debugging the Raspberry Pi boot process on this journey through UART, bootloaders, EEPROM, and USB-to-TTL adapters! Blog post with more detail: https://www.jeffgeerling.com/blog/2021/getting-raspberry-pi-boot-after-cutting-it-half Support me on Patreon: https://www.patreon.com/geerlingguy Sponsor me on GitHub: https://github.com/sponsors/geerlingguy Merch: https://redshirtjeff.com #RaspberryPi #RedShirtJeff Contents: 00:00 - He cut my Pi! 00:30 - It could actually work 01:11 - First plugin 01:52 - Stuck in the bootloader 02:50 - cleverca22's hopeful post 03:30 - What's UART? 04:56 - Debugging the Pi 05:38 - Pi boot process 06:33 - EEPROM, what's that? 07:26 - Other possibilities 07:49 - Thanks for all the cereal