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Z5 dual - no signal on 2nd sim

Message 1 of 2
Message 1 of 2

Z5 dual - no signal on 2nd sim



I have just bought an unlocked Z5 dual, after owning a z2 for nearly 2 years.



I have been using my Giff Gaff sim no problem in sim slot 1 for the past 2 week.


I am going on holiday soon so I bought a Three network sim so I can use it abroad and put it in the sim slot 2.



The Three sim is continually showing 'no bars' in the triangle that displays signal strength.



Should a Three network sim work in an unlocked phone?


Can anyone help me fix this?



Three say the card is activated at their end and the sim works in my friends Three locked HTC phone






Message 2 of 2
Message 2 of 2

Re: Z5 dual - no signal on 2nd sim

update ..


when the giff gaff card is out it eventually finds a signal.



when the GG card is inserted again, the three card loses signal and even though I select the three card to pick up the data, it doesn't work, I get internet pages not found until i flick it back to Giffgaff.



Is it just me not understanding how this dual sim thing works????