Take a look at this:
The reviewer said they spoke to the Blockstream team who told them that if the Jade has any issues within the first year that can't be solved remotely or with a software update, you'll get a replacement device or a refund. They cover the return shipping within the US. For orders from outside the States, the buyer covers the shipping fees.
Hmm... thanks for the info.
The problem is, I own it for more than a year and I am also not in the US. So I need to cover the shipping fees, but also, it looks like they can't do anything for me.
Anyway, I will try to upgrade the firmware later tonight. Perhaps this issue will be solved.