From 11b1e724b50e528f27a92bb662d153ac617054d8 Mon Sep 17 00:00:00 2001 From: Tim Crawford Date: Tue, 2 Jan 2024 11:32:25 -0700 Subject: [PATCH] docs: Add note about write lock for flashing Signed-off-by: Tim Crawford --- docs/flashing.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/docs/flashing.md b/docs/flashing.md index 6a3d837..048f9a2 100644 --- a/docs/flashing.md +++ b/docs/flashing.md @@ -4,6 +4,10 @@ Use this method for flashing a system already running System76 EC. +This method will only work if the running firmware is not locked. Firmware is +write locked if it was built with `CONFIG_SECURITY=y`. firmware-update must be +used to flash from UEFI in this state (see `flash.sh` in firmware-open). + This will trigger a watchdog reset causing the system to **immediately power off**. OS data may be lost or corrupted as a result. Save and close all applications before flashing.