You don't have to be trained on anything to be aware that information is key. And you still failed to add any information.
So far you've done the equivalent of walking into a garage and saying your car doesn't start. So we don't know the type of car (pertol, diesel, electric), make of car or pretty well anything apart so far (thanks to you screenshot) that some of the lights come on.
What path did you use to upgraded it - from what to what via what? How did you upgrade it (recreate SD, transfer ISO, using Manager,...)? What sort of IP Office system is it? What do the phones display.
Stuck in a never ending cycle of file copying.