Jbl boombox 3wifi version -SOFTWARE UPDATE

PANAGIOTIS

Hello ,I'm from Greece. I bought recently from Amazon De the jbl boombox 3 wifi . It's playing perfect,but at the app jbl one mobile app is appearing a software update,although pressing it ,the update reaches until 25 percent only in ten minutes approximately. What is happening? I dont know till today, I have tried various things ,a lot of hours, but the same issue these 4,5 days.Thanks.