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+# Flashing firmware internally
+
+**WARNING:** If you flash a broken firmware and have no recovery mechanism, you
+ must use the **external method** to flash a working firmware again.
+
+## Using flashrom
+This method does only work on Linux, if it isn't locked down.
+You may also need to boot with `iomem=relaxed` in the kernel command
+line if CONFIG_IO_STRICT_DEVMEM is set.
+
+
+For more details please also check [flashrom's wiki].
+Use the programmer *internal* to flash *coreboot.rom* internally:
+
+```bash
+flashrom -p internal -w coreboot.rom
+```
+
+[flashrom's wiki]: https://www.flashrom.org/Flashrom