It's ability to pick up a mobile signal is shockingly bad. Areas I used to get 4g on Huawei P30 Pro, now I'm lucky to get a poor H+ if that.
I've changed no end of settings with Vodafone's help to no avail.
I've wiped partition cache.
All updates downloaded.
Samsung Customer Service are about as useful as a chocolate tea cup, saying that I have to return the device for replacement but because it is a customised colour/memory, no device for up to 2 months. (not happening).
Have you tried inputting fresh new APN settings? I know for the past few weeks there's been issues with Samsung / Voda UK updates where the APN setup got messed up. Judging by other comments in the Samsung community, fresh APN settings did the trick, although, these people literally had no mobile data connection at all... so maybe new APN settings won't do anything for you... but it's worth a shot I guess...
Vodafone did indeed give me new APN Settings for web instead of wap.
I've done another wipe partition cache as well and reset network settings.
There has been some improvement although I'm still getting h+ in places I usually get 4g and when I do get 4g the signal is weak and service slow.
Very interesting to know issues with Samsung/Voda. The device is network unlocked and SIM free (direct from Samsung) and Voda to date have been very helpful. Networks are looking into signal degradation locally at this time.
I'm really intrigued to see where this goes. I learn a lot from the community group... all I can possibly think of now is that a replacement sim might be worth trying... it would be free I'm sure.
When sims were standard sized they were more tough and reliable... the move to nano sim size has made them more fragile.
Even though your Voda sim may still work fine in the Huawei P30 Pro... I don't think there's any harm in doing a replacement sim... fresh sim... just make sure your contacts are safe and backed up... not sure how you store them.