Huawei band a2

My band huawei a2-427 worked well for 3 months. But now it doesn’t connect with my Iphone anymore. A friend checked, band was connecting fine with her phone. But with mine - not anymore. Message says “please ignore Huawei band a2-427 on your phone’s bluetooth screen and then pair again.”

I restarted phone multiple times, installed all updates, deleted app and downloaded again, but I can’t pair my band with phone. Please help!