9300 2016-03-18 03:40:24 +0000 AFTER POWER ON, LED(D1)ON BUT LED(D2)flicker 2017-06-13 18:01:14 +0000 1 1 12 Hardware Platforms MinnowBoard MAX hw-minnowmax 2C A2 MinnowBoard Multiple RESOLVED MOVED Medium normal Production Release 1 xiaohangx.cai warthog9 sjolley.yp.pm --- --- Don't know oldest_to_newest 60127 0 xiaohangx.cai 2016-03-18 03:40:24 +0000 when power on ,the led(D2)is flicker.I have changed the U35,but it doesn't work. 60129 1 warthog9 2016-03-18 06:43:40 +0000 Without knowing more, it's going to be awfully hard to diagnose. I'm going to guess you are using an under powered power supply (we recommend a 5V 2.5A supply), or you've added something to the low speed expansion header that's miss-wired, and causing the looping. Can you more fully describe your setup, what's going on with the flicker (how quickly would be potentially useful), and check your power supply? 60132 2 xiaohangx.cai 2016-03-18 07:21:32 +0000 My Power adapter is 5V 3A,and I have not added anything to the low speed expansion header. I have two boards go wrong, the D2 of the boards one flicker one time about 5s, the other one flicker about five times one second . 60138 3 xiaohangx.cai 2016-03-18 08:12:07 +0000 My third one can work well on the 5v 3A. 74086 4 sjolley.yp.pm 2017-06-13 18:01:14 +0000 We are no longer tracking in Yocto Project Bugzilla MinnowBoard and MinnowBoard-MAX HW and firmware bugs.