Hi Julius, I think VB2_RECOVERY_TRAIN_AND_REBOOT is needed. It is the equivalent command to 'crossystem recovery_request=0xc4', which we used in factory process to enforce DRAM training ( https://chromium.googlesource.com/chromiumos/platform/factory/+/HEAD/py/test/pytests/mrc_cache.py#78 ), for both x86 and ARM.

Without this, we can't enforce re-training in manufacturing process.

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