For starters whether your neighbour has an iPhone, Android phone or basic supermarket PAYG phone, the question is more.. can power surges affect mobile signal?
They can, yes.. if the power surge is at the transmitter site and therefore signal goes off-air. You need to also be aware that whereas with TV, broadband and phone, Virgin operate their own network, it's different with mobile. They're a reseller of one of the big-4 network operators, presently EE. Virgin look after some of the billing and back-end side, but the radio coverage (i.e. the signal your phone uses) is not theirs.
In other words, where your local TV fault is concerned, mobile is completely unrelated.
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