|
|
@@ -1,10 +1,28 @@
|
|
|
---
|
|
|
-title: ThinkPad X220/X220T external flashing
|
|
|
+title: ThinkPad X220/X220T internal/external flashing
|
|
|
x-toc-enable: true
|
|
|
...
|
|
|
+INTERNAL FLASH
|
|
|
+--------------
|
|
|
+X220 does not support flash via software(internal) method running on non-free lenovo bios.
|
|
|
+But if you have already run coreboot/osboot on your X220, then you can flash it with software(internal) method.
|
|
|
+You need to boot with a kernel parameter iomem=relaxed
|
|
|
+And when you boot into your GNU/Linux os you can update/flash other coreboot/osboot rom with flasrom.
|
|
|
|
|
|
-Make sure to read the [Ivybridge/Haswell common guide](/docs/install/ivy_has_common.html) before attempting to flash this board.
|
|
|
-After you have prepared a rom and split it into two section, refer to this guide for disassembly instructions.
|
|
|
+First you need to know the model of your chip.
|
|
|
+This can only be done by disassembling the laptop and looking at the markings on the chip
|
|
|
+See [coreboot docs](https://www.coreboot.org/Board:lenovo/x220) for how to disassemble this machine to reveal the flash chips.
|
|
|
+After you know the chip model you need to run this to list chip models:
|
|
|
+ flasrom -p internal
|
|
|
+Copy the name of the chip and paste it in CHIPNAME and type romfile name in ROMNAME:
|
|
|
+ flasrom -p internal -c CHIPNAME -w ROMNAME
|
|
|
+Wait until the flashing ends and if it completed without errors, turn off your laptop by long pressing the power button
|
|
|
+
|
|
|
+Boot it!
|
|
|
+--------
|
|
|
|
|
|
+EXTERNAL FLASH
|
|
|
+--------------
|
|
|
We don't currently have disassembly instructions for this board.
|
|
|
See [coreboot docs](https://www.coreboot.org/Board:lenovo/x220) for how to disassemble this machine to reveal the flash chips.
|
|
|
+Refer to [spi.md](spi.md) for how to re-flash externally.
|
