Questions tagged [firmware]

Firmware is the code usually stored in flash ROM and contains the instructions for communicating with the other computer hardware.

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Weird load averages, want to downgrade firmware

I have a bunch of raspberry pis Two of them show a vcgencmd version of (a Pi4, and a Pi3A): Jul 4 2022 14:41:54 Copyright (c) 2012 Broadcom version 01db5c05be1b3594c8f040ed7c1ac2748890c2c8 (clean) (...
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Raspberry Pi 3B not booting anymore.How to update firmwire?

I have a RPi 3b in my stack. Suddenly it stopped working correctly and after another OS flash it was dead. Now is there a way to revive it?
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'Firmware 1.05' text lingers via HDMI

Raspberry Pi 3B running Retropi (v4.7.21) inside a PiBoy DMG (firmware v1.05) When I connect this to my monitor via HDMI, it opens with the usual white ExperimentalPi splash screen, which is where '...
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Pi Camera 1.3 not detected despite v4l2-ctl listing it

Before you say that I haven't searched the internet, whenever I type "pi camera not detected" I literally don't see a single unclicked result. I am slowly breaking apart. PI 4 (8gb), V1.3 ...
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How to install firmware manually?

I've compiled a kernel for Raspberry Pi 4 (CM4 on IO board) and made a sd card and installed overlays, modules, copied the kernel to fat32 etc. When i boot, it gives only some messages to the point ...
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Rpi 3B+ "Unsupported board type" Flashing Power Light

I have a Pi 3B+ that wont boot. It's a "new" unit that I received as a gift a few years ago and am just now taking it out of the box and trying to use it. I've tried several OS images, but ...
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Why DVFS is not working on my Raspberry Pi 4 Model B?

According to the documentation https://www.raspberrypi.org/documentation/hardware/raspberrypi/frequency-management.md On Raspberry Pi 4 Model B, firmware from late November 2019 onwards implements ...
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raspi ubuntu 20 - apt-get update problem - linux firmware / linux-raspi / linux-image-raspi

Hy my raspi has this fstab: UUID=7d298733-8450-4adb-b654-6de49954db5c / btrfs defaults 0 0 UUID=AD5E-0725 /boot/firmware vfat defaults 0 1 Then the ...
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Update Raspberry Pi Flash with change of SD Card

I know that the firmware on the Raspberry Pi 4 is automatically updated trough the package manager. If I install a new version of rpi-eprom (or is it another package?) trough apt upgrade the boot-...
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Error while dist-upgrade: ..../raspberrypi-kernel_1.20210108-1_armhf.deb Hash Sum mismatch

I am upgrading my RPi 3 from Raspbian stretch to buster. I get this error while running sudo apt dist-upgrade: Err:1 http://archive.raspberrypi.org/debian buster/main armhf raspberrypi-kernel armhf 1....
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mmal: mmal_vc_component_enable: failed to enable component: ENOSPC

when using NoIR camera: rapivid -v camera work but colour of frame varies with the lighting. when using IR camera: raspivid -v resulting: mmal: mmal_vc_component_enable: failed to enable component: ...
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2 votes
2 answers
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GPIO not working on Raspberry PI 4 4GB

I have a RPi 4 running Raspbian with the Ubuntu Mate desktop environment, whenever I try to use the Wiring Pi library through a C script, to doesn't work at all. On using the gpio readall command I ...
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Does Raspberry Pi count as firmware

Say you make a system/gadget with a Pi and a bunch of sensors that the Pi gathers data from. Is the software on the Pi reading the data count as firmware? or the Raspbian OS itself?
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What exact wireless chip does Pi 4 use?

I will receive my Pi 4 soon, so I started breaking down image generation scripts as I like to make image myself (as I install system on computer same way, by hand). As I want to copy just specific ...
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Get raspberry firmware version

I want to know what is my raspberry pi firmware version. I have read some documentations and i have found 2 ways to get this version number: /opt/vc/bin/vcgencmd version and FIRMWARE_HASH=$(zgrep &...
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What's firmware parts are needed and closedsource for RPi 4?

What parts of the Raspberry Pi 4 require closedsource blobs? Does RPi 4 require big gpu blob to boot as previos versions? In other words, which closedsource stuff does RPi 4 need for proper ...
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Pi 4 - How to be sure to order a model with usb fixed?

I discovered that some initial lots of the Raspberry Pi 4 may have a sort of hw/sw bug that may be related to USB 3, and maybe also to thermal management and throttling. I would like to understand ...
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strange behavior when booting Raspbian OS on 4B 8GB from a microSD card with a non-bootable SSD attached

I have a Raspbian OS microSD card that I use with the Raspberry Pi 8GB model I upgraded the firmware to the June-15 stable version of the firmware so that I could boot from the SSD. That worked fine. ...
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What is the minimum power required for an RPi 4 in `halt` or `shutdown`?

I want to use a RPi 4 in a remote, unattended, battery-powered application. In this application, the RPi 4 will spend most of its time inactive, awakened only by either a Real Time Clock (RTC), or a ...
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Do I need to upgrade any firmware on a new board to make it work and produce a video signal?

I received my 3rd Pi4 4GB kit from Velros and all I did is move the known working sdcard from my working Pi#2 board into this new one. However, after it boots I see 4 raspberries in the upper left ...
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Does a firmware update remain when changing the OS?

If I do a firmware update via sudo rpi-update on Raspbian Buster on the Pi 4 and then flash another OS (e.g. LibreELEC) to the SD card, will the firmware still be up-to-date?
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WiFi not working after installing openmediavault (OMV) 5 in RPi 4

I installed OMV 5 in my Raspberry Pi 4B running Raspbian GNU/Linux 10 (buster), following this video https://www.youtube.com/watch?v=sYDyvr9Uc6Y (script installation). Just right after install OMV 5 ...
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Malfunctioning Raspberry pi 4, red and green led on all the time

My Raspberry Pi 4 won't boot anymore, there is no picture on the monitor, and both LEDS (red, green) are on all the time, they do not blink. I formatted the SD card with SD Card Formatter and ...
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What if I flash the ARM processor with some random firmware

As Pi users, we know that our boards are driven by an ARM processor. We can find these processors in tons of devices such as routers, modems, cellphones etc. An ARM developer will use C language and ...
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396 views

Running SDL 1.2 based code on buster without X

Up to and including Raspbian Stretch, I could use a hacked SDL library called SDL12-kms-dispmanx by a developer called vanfanel to run SDL 1.2 code from the console without X. (See here: https://...
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How to revert from rpi-update to stable build

I have been using a RPi3 for the last year without any issues. I have had rpi-update as part of a regular update process (cron job). Lately I have been experiencing crashes. I started to investigate, ...
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3 votes
2 answers
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Raspberry PI boot FAT32 arrangement

I recently thought about tinkering with Raspbian by adding an initramfs. But I have still some unresolved questions about the boot (FAT32) partition. Does the partition have to be on a specific ...
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vcgencmd is missing in arch linux

I have recently acquired a Raspberry Pi 3B+, and I have installed arch linux on it. So far, so good, but vcgencmd is missing, and I am not able to find a way to get it installed. Can somebody help me?
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Can a Raspberry Pi be firmware updated? Inquiring from a security perspective

Can a Raspberry Pi be firmware updated?...I have a feeling from the suggested questions I'm being offered, the answer is yes. I'm actually asking this from a security perspective, not because I ...
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684 views

Why is OP-TEE for Raspberry Pi3 insecure?

The OP-TEE on Raspberry Pi 3 webpage says, This port of ARM Trusted Firmware and OP-TEE to Raspberry Pi3 IS NOT SECURE! Although the Raspberry Pi3 processor provides ARM TrustZone exception ...
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What are the vcgencmd measure_clock 26 and 50?

There are 2 clock sources that are not officially (?) listed with a string id available to the vcgencmd measure_clock command. # for i in {0..255}; do vcgencmd measure_clock $i; done | grep -v "=0" ...
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Raspberry Field Firmware update?

I have a question regards a field firmware update; namely a firmware update from 0.24.0.54xxx to 1.0.0.55xxx. What do I have to consider when doing this? Which files do I have to update? overlays, ...
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What happens if throttling back doesn't help on high temperature? Does Raspberry Pi power off?

I recently asked this question asking if the temperature was handled by hardware or software and someone told me that it was handled by raspberry pi firmware (hardware). Appearently performance is ...
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In simultaneous use of SPI0 and DPI Mode 3 interfaces, can SPI0 CS0 be moved to a pin other than 8?

I am attempting to design a device using a Pi Zero which needs to connect to both an ENC18J60 SPI ethernet controller, and a VGA monitor via Mode 3 DPI and the Mincepi Pi Zero pi2vga schematic. While ...
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Decrease the sensitivity on Capacitive Touch breakout?

I have this capacitive touch sensor: https://learn.adafruit.com/adafruit-capacitive-touch-sensor-breakouts/overview And it is WAY too sensitive for my purpose. I want to have a conductive panel on a ...
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3 votes
1 answer
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DeviceTree magic strings

I recently stumbled over the MagPi Essentials Camera. In chapter 7 "Flash photography using an LED" (p.41+), they show how to configure pin BCM17 to act as a flash for the official Raspberry Pi Camera....
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HDMI display output rendered useless on 2 different Raspberry Pi 2

Is there a way to corrupt the firmware in the Raspberry Pi ARM? I cannot understand what has happened to my 2 RPIs and I was never expecting software or the operating system being able to disable the ...
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1 vote
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How deep can a virtual machine like VirtualBox emulate Raspberry Pi?

Currently I have the firmware code for a device running on Raspberry Pi. I want to use a linux computer that I have to test the device out using a virtual machine like Virtual Box (To connect it to ...
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rpi-update seemed to have stopped spi and one wire

I had two programs, one using DS18b20 sensors and the One-Wire and the other using SPI. On another pi, I had a program using the camera which had an error(still not sure what the error was) fixed by ...
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Can my RPi3 running Raspbian be used to flash DD-WRT on to a compatible router

I have a Netgear router that is compatible to flash DD-WRT. I have read you can use mac windows or linux. I only have a RPi3 no other computers. Will my Rpi3 work for this? I am running the latest ...
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When trying to use a device I get a message "Direct firmware load failed"

This is about firmware that needs to be loaded into particular devices attached (usually via USB) to a Raspberry Pi, not the firmware for the Raspberry Pi itself (the GPU firmware). When the kernel ...
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3 votes
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Raspberry Pi Firmware - user updateable - which bits live on sd and which on the hardware

I'm trying to understand the firmware on the Raspberry Pi. My understanding was that firmware related only to persistent software not influenced by anything which is on any particular SD card, but it ...
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1 vote
2 answers
528 views

Raspberry firmware on micro sd card; file system format

I am downloading the firmware from here https://github.com/raspberrypi/firmware and I would like to know, what are the steps to burn the firmware on the micro SD card? Unfortunately, there is no ...
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Check most current RPI-Firmware available from Git Repo?

I'm trying to to retrieve most recent master version from the Hexxeh/rpi-firmware which is used by Ubuntu Mate 16.04. The rpi-update update script exist on this page but I'm unable to fishout how ...
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2 votes
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Bare metal: Why does the CPU automatically read instructions from the SD card?

I'm learning bare metal programming on the RPi. My main experience is from using 8-bit PIC microcontrollers. Reading from SD cards is comparatively high level. How does the CPU achieve this? Does it ...
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Raspberry Pi B+ Overclocking

Good day, May I ask if it is true that if I activate turbo on the raspi-config, the pi doesn't always run at the maximum speed at 1Ghz. Is it safe to set force turbo = 1 at the config.txt to force ...
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Taskbar flashing white after firmware update (4.4.7v7+) [duplicate]

I'm running an RPi 2 B and just updated my firmware (to 4.4.7v7+ #877), and now the taskbar (or what should be the taskbar), is just a flashing white rectangle. I've tried rebooting a few times with ...
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1 vote
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What could be causing "over-current change" all the sudden?

This is a Raspberry Pi 2 using a 5V 2 Amp power supply running with a LaCie 2TB USB external drive connected via the USB port. It gets its power from the USB port for the drive. The above has been ...
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3 votes
1 answer
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Raspberry Pi-2 with mainline Linux kernel

With several nice commits landing into the mainline of Linux Kernel for version 4.5, is it already possible to compile and boot a mainline kernel (e.g. 4.5-rc6) on a Raspberry Pi 2? If yes, then what ...
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Raspberry Pi 3 usable with fully free software?

In the Free Software Foundation's May 2013 review of single board computers, the Raspberry Pi was found to have fatal flaws for use in a free (libre) software environment: The Raspberry Pi requires ...
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