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Subject :
	KA7169 / Firmware downgrade failed

Description :
	KA7169 cannot be downgraded to v1.5.146, only can be downgraded to v1.6.156

Solution :
	There is H/W revision on KA7169. The newer KA7169 only can use v1.6.156 or later version，it can not downgraded to v1.5.146.


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