F8-B OLED went out now can't access

[blackramair]

So I was trying to solve an issue with 2 remotes and 1 master which consist of F8-B, F8-PB and K8-PB where I couldn't get all the controllers to play with a playlist only 2 would work at a time. I was changing a playlist when the F8-B which is master could not longer be reached. I went and unplugged then plugged it back in, I notices the OLED was no longer working now I can't get into the controller no matter how many times I unplug and replug it back in.  Any ideas?

[Sawdust]

If you are unplugging the Power Supply then plugging back in. The PS ramps up the voltage so the beagle may not see the power on condition. Try powering on at the 5V level with PS in on state.