Hi, I've been using this phone for the last 18 months with 2 sims, one was EE, the other Plusnet (using the EE network) and had no issues at all. Couple of weeks ago I changed from Plusnet to O2 and when I try to have both the EE and O2 sims in I'm having lots of issues - can't get a network connection, can't receive calls (just get a message saying someone has tried to call me but, speaking to whoever has tried to call me, they say they don't hear a ringing tone) etc.
Does anybody know of anything I can do to fix this issue? I've currently had to put one sim in another phone which means having to carry 2 phones which is far from ideal!
