I am not from UK but we also have huawei and ZTE equipment. I want to ask is there real security threat from it or it is just under pressure from USA for USA China trade war?
The reasoning seems to be that the US sanctions will force Huawie to source components from less trusted sources, making the products less secure and less reliable. Here’s what the supposedly impartial NCSC have to say.
https://www.ncsc.gov.uk/information/huawei-advice-what-you-need-to-knowTaken at face value, that would seem to suggest that Huawie products are likely to struggle to meet security requirements globally, not just UK, although some countries probably set a lower threshold for security. If NCSC are being straight with us, it would seem reasonable to me, to expect a lot of other countries to follow suit.
But who knows what politics are in play? Including the politic that the UK needs the USA as a friend. And also that UK is unpopular in many place and their governments, even if they agree with NCSC, may simply not want to be seen to be “following suit” to the UK.