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Using A Console Cable to Troubleshoot | Raspberry Pi Zero Headless Quick Start | Adafruit Learning System
![RPi 3b doesn't boot from sd card. Without sd card, both ethernet light up, even with sd card inserted too. ACT led wont light up. 3.3v rail works. : r/RASPBERRY_PI_PROJECTS RPi 3b doesn't boot from sd card. Without sd card, both ethernet light up, even with sd card inserted too. ACT led wont light up. 3.3v rail works. : r/RASPBERRY_PI_PROJECTS](https://preview.redd.it/fvgosflk52f81.jpg?auto=webp&s=6c8a81f4cfe2e3d54e92bfed596e8a4d34b705c9)
RPi 3b doesn't boot from sd card. Without sd card, both ethernet light up, even with sd card inserted too. ACT led wont light up. 3.3v rail works. : r/RASPBERRY_PI_PROJECTS
![Raspberry basics: Project 01b Troubleshooting of common hardware Raspberry Pi problems at Acoptex.com / ACOPTEX.COM Raspberry basics: Project 01b Troubleshooting of common hardware Raspberry Pi problems at Acoptex.com / ACOPTEX.COM](https://acoptex.com/uploads/RaspberryTroubleHard1.jpg)
Raspberry basics: Project 01b Troubleshooting of common hardware Raspberry Pi problems at Acoptex.com / ACOPTEX.COM
![pi 3b+ - Pi 3 Model B+ has steady red PWR LED but no green ACT LED with 2018-03-13-raspbian-stretch.img - Raspberry Pi Stack Exchange pi 3b+ - Pi 3 Model B+ has steady red PWR LED but no green ACT LED with 2018-03-13-raspbian-stretch.img - Raspberry Pi Stack Exchange](https://i.stack.imgur.com/cuukk.jpg)
pi 3b+ - Pi 3 Model B+ has steady red PWR LED but no green ACT LED with 2018-03-13-raspbian-stretch.img - Raspberry Pi Stack Exchange
![pi 3b+ - Pi 3 Model B+ has steady red PWR LED but no green ACT LED with 2018-03-13-raspbian-stretch.img - Raspberry Pi Stack Exchange pi 3b+ - Pi 3 Model B+ has steady red PWR LED but no green ACT LED with 2018-03-13-raspbian-stretch.img - Raspberry Pi Stack Exchange](https://i.stack.imgur.com/ta3JS.jpg)