Won't boot, can't get to recovery or download mode, and I have a JIG
I've had this Samsung Galaxy S II I777 for two years or so. I've had zero issues out of it until the past week. I flashed one the CM 10.2 releases and the AJK kernel. It worked for a few days, but then it just stopped. It won't boot, I can't get to recovery or download mode. I've tried a JIG, which I did verify the JIG works on a friends I777.
I've tried almost every possible combination I can think of about booting the device. Vol up and down and power / vol up and down then plug in USB both with and without the battery / among other ways.
Every once in awhile when I connect the I777 to a wall charger, the charging icon that normally comes on the screen if the device is off, will flash briefly, then go away. That's the only life I've seen from the device.
Any ideas? This is my work phone, so I'm not too concerned about, but I'd still like to see if I can get it working again.
AT&T Samsung Galaxy S4 32GB
Samsung Galaxy Note 8.0 - AT&T LTE
AT&T Samsung Galaxy S II - OGSGSII