App says to update the firmware but when I try, it always fails

I have 2 u-bolt pro wifi and both are unable to upgrade their firmware. I’ve tried it all, including changing my wifi router and resetting the locks. Please advise.

@Victor1 Dear customer, we have already created a support ticket for you; please check your email inbox for our detailed reply later. Thanks!

Just seeing this thread. I too cannot update my bluetooth firmware for my U-Bolt Pro WiFi lock. I tried removing the batteries, restarting my phone, using the 2.4 wifi band, standing next to the lock etc.

@Ahnie Hi Ahnie, we have contacted you in ticket #491943, please kindly check your email. Thanks!