# Raspberry Pi 4 8Gb not booting **URL:** \ **Category:** Raspberry Pi\ **Created:** [12 June 2020 03:52 UTC](https://forum.core-electronics.com.au/t/raspberry-pi-4-8gb-not-booting/7863 "2020-06-12T03:52:17Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![brian86770](https://avatars.discourse-cdn.com/v4/letter/b/c5a1d2/32.png) [@brian86770](https://forum.core-electronics.com.au/u/brian86770)\ **Post date:** [18 November 2020 17:12 UTC](https://forum.core-electronics.com.au/t/raspberry-pi-4-8gb-not-booting/7863/4 "2020-11-18T17:12:10Z")
my boot loader boasts sep 9 2020…so it just could be out of date or has become unstable… i agree with Bryce on this issue…need to reinstall the boot loader… you casn write into the loader file before you flash it i have re-flashed mine using ubuntu i changed the boot order so it boots fron the usb port if it cannot find a op-sys on the usb it then looks at the sd-card ![image](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/5/5f073895a131a24a4cc9494b024f6f0257c3f879.jpeg) you can have a look here… [![](https://img.youtube.com/vi/u6EUplRPF5s/hqdefault.jpg "How to Update Bootloader EEPROM - Raspberry Pi 4") ](https://www.youtube.com/watch?v=u6EUplRPF5s) also this page may be of assistance to many users…having the fault codes… > **[Raspberry Pi Documentation - Configuration](https://www.raspberrypi.com/documentation/computers/configuration.html)** > > The official documentation for Raspberry Pi computers and microcontrollers > **[Raspberry Pi OS – Raspberry Pi](https://www.raspberrypi.com/software/)** > > From industries large and small, to the kitchen table tinkerer, to the classroom coder, we make computing accessible and affordable for everybody. this may be handy as well… > [@Usb 3 ports not working rpi-4](https://forum.core-electronics.com.au/t/usb-3-ports-not-working-rpi-4/8671): > > i have got the rpi-4 board to boot from usb…that is working the usb 3 ports still seem to have an issue using 20,10 ubuntu… i swapped out my hdd over to the usb 2 ports and it works ok… so is there still an issue with the usb 3 ports… ok so i limited the memory to 3 gig like i did in the past to get the usb 3 ports to function …i dont think i ever have and i have had my board for approx a year now…i`d say… i`m running an m-2 and usb bridge adapter it is really good butr would be faster o… --- _[View the full topic](https://forum.core-electronics.com.au/t/raspberry-pi-4-8gb-not-booting/7863)._