Second sim not showing signal - OnePlus 2 Q&A, Help & Troubleshooting

hi my second sim is not showing any signal .Here is scenerio
I am using card SIM1
I put SIM1in first sim slot. its working
I put sim in second sim slot , its wortking
Now I use second sim card SIM2 and removed first SIM1.
I put SIM2 in first sim slot. its working
I put SIM2 in second sim slot , its wortking
Now I put SIM1 and SIM 2 together in both sim slots.
Only one sim is showing with signal.
I can see there is no issue with sim and sim slots . But when I put both sims together only one is showing signal. Any suggestions.
Any suggestions?

alien0101 said:
hi my second sim is not showing any signal .Here is scenerio
I am using card SIM1
I put SIM1in first sim slot. its working
I put sim in second sim slot , its wortking
Now I use second sim card SIM2 and removed first SIM1.
I put SIM2 in first sim slot. its working
I put SIM2 in second sim slot , its wortking
Now I put SIM1 and SIM 2 together in both sim slots.
Only one sim is showing with signal.
I can see there is no issue with sim and sim slots . But when I put both sims together only one is showing signal. Any suggestions.
Any suggestions?
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If you use two sims together, the secondary (non-data) sim only supports 2G networks so, if neither sim has 2G support, only one will work at a time.

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I have tested the SIM in another phone and data works there.
I've now ordered a nano-SIM to micro-SIM adapter from ebay to test it in the SIM 1 slot.
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I've just oredered my ze520kl and i was looking for informations about SIM slots configuration.
From the ASUS site:
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