So i have my note 9 and just got my phone back from being repaired, my signal is fine everywhere except my house and the surrounding area good in some places. I'm currently with giffgaff I practically don't get any signal or data ive been on voxi,tesco and the same is with them just at my home but my misses is currently using a crappy tab and its on giffgaff and running 4g mean while mine doesn't even come up in the network mode settings also when I was on voxi the guys on there end told me the sigal in my area was fine and up and running yet I wasn't getting anything really need help have to tether my smart phone from said crappy tab