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+No warranty provided. Here you will find some results from our meetings.
+
+BEFORE flashing make sure EC version is up to date (yes it's proprietary).
+
## Coreboot for T400 without blobs
Here's our config for coreboot, copy it here to this path [coreboot/.config](t400_coreboot/).
( Below in the text we refer to it as ~/coreboot_config_t400_8mb )
## Coreboot for X230
-Make sure bios has latest EC version.
+Make sure bios has latest EC version. We had EC 1.14 (G2HT35WW).
### Internally
Warning, we tried this method and accidentally lost a resistor same as
<https://www.reddit.com/r/coreboot/comments/dhwdss/did_i_just_brick_my_x230/fmytpm0/?utm_source=reddit&utm_medium=web2x&context=3> (supposedly a R1378, SMD 33.2Ω resistor). With open circuit here computer cannot boot, however by adding it back or by shorting it it will be able to boot (after booting the computer can run with an open circuit here, but do not recommend).
-Additionally, after asking on IRC the recommendation was to, on the signal lines, add a resistor e.g. 47 Ohm... assumably for both data lines and clock? Or just flash internally...
+Additionally, after asking on IRC the recommendation was to, on the signal lines, add a resistor e.g. 47 Ohm... presumably for both data lines and clock? Or just flash internally...
See (POSSIBLY OUTDATED LINKS):