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Questions tagged [act]

For questions involving the Pi's SD card activity LED (labelled ACT). Use this tag where the LED's operation is relevant, for example if the LED is functioning incorrectly, or may be indicating a problem with your Pi.

5
votes
2answers
2k views

Can't turn on ACT LED on baremetal Pi3

I'm trying to run some bare-metal code on my raspi 3. This is my first time doing any sort of bare-metal programming, so first things first I want to turn on my ACT led as a kind of hello-world type ...
2
votes
1answer
778 views

Pi 3 on-board LEDs

Can I make one of the LEDs on the Ethernet port do the same thing as the ACT led? The case I've got my Pi in, does not allow me to see the ACT led so I do not know when its okay to cut the power ...
2
votes
1answer
30 views

Normal Work of RPi 3B+

I am newbie and i want to understand watching only on indicators, is Rpi 3 B+ work quite well? I mean, are green and red lights should glowing both permanently together or red light can glows ...
1
vote
2answers
365 views

Act LED flashing 3 times quickly after boot

The ACT LED on my Raspberry Pi 3 B+ is flashing three times very quickly after boot. I am not able to connect via ssh (the error message is "Connection Refused" – despite ssh being enabled), but I am ...
1
vote
1answer
478 views

Green Led (ACT) is blinking for mmc0 without SD card activity

The green led (ACT) on my Raspberry Pi 3 is set to mmc0 to flash on SD card activity via echo mmc0 |sudo tee /sys/class/leds/led0/trigger However, it flashes much more often (randomly every few ...
1
vote
1answer
458 views

Raspberry Pi 3 will not load SD Card

I have a very strange problem and have gone through 2 pi's atm. I have Raspberry Pi 3, I put an OMV imageon it [1]. The first time I boot up the Raspberry Pi it outputs and has a Kernal error: I try ...
1
vote
1answer
213 views

Raspberry Pi 3 Model B will not read SD Card

I have a new Raspberry Pi 3 and wanted to download OMV onto it, however, I can not get the Pi to read my SD card. I have two different SD cards that I have tried but the ACT light never turns on. ...
0
votes
1answer
175 views

raspberry pi no rainbow screen

I have an another problem. My RPi (3 model B+) not booting. No ACT led, no rainbow screen, only PWR led. Here is what i checked: - Power supply (Raspberry Pi Universal Power Supply 2.5A, 5.1V Micro ...
0
votes
0answers
24 views

Raspberry Pi Zero W not booting(ACT green led weak blink)

Raspberry Pi Zero W ACT green led weak blink and not booting. But sd card is working in Raspberry pi 3. Stretch and Jessie installed but both did not work What is the problem? SD card Samsung Video: ...
-1
votes
1answer
79 views

Pi3 Act blinks once, no boot

I have got a problem with my Paspberry Pi 3 that my girlfriend put away on a drawer. I cant boot it any more, I have tried the SD card in another pi, and it boots, even tried a diffrent SD card that ...