Manx Telecom's released a list of handsets which won't be able to use its 4G network when it's turned on.
If you have the latest Apple phone, prepare to be disappointed: the company says the iPhone 5c and 5s won't be able to use its high-speed broadband until a software update is released.
For Android users, it's some 4G-ready Samsung phones that create problems.
Photographer Gary Weightman says he's surprised he won't be able to use 4G, despite using it in the UK:
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Tynwald approves changes to sitting schedule, including half-term breaks and revised start dates
Measures to avoid school break sittings backed, with earlier October and January starts agreed
Plea to Manx parents to check meningitis vaccination status
It follows the death of two young people in the UK
Bus dispute ‘a considerable way apart’ as talks continue, says infrastructure minister
Tim Crookall optimistic progress is possible despite ongoing strike action and disagreements over contracts and pay structure
Noble's bed capacity exceeding industry-recognised 'safe levels'
The health minister's been responding to an urgent Tynwald question
Island sheep shearer claims fourth at World Championships
Manx contingent returns from New Zealand