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[Q] ZP700 3G Drop Signal when WCDMA is Active

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By Iegolas, Junior Member on 12th April 2014, 11:58 AM
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I bought 2 ZP700 that has MTK MT6582 processor.
In one of them when I try to used the WCDMA band I lost (drop) the signal. You can see the video: ( I can't publish a link)

This is the phone information (works fine)
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And the other phone doesn't work
Click image for larger version

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The phone has problem to use the WCDMA band. In that case the band of my country is 850 Band that is supported for this device.

Can I change the base band ? What things can i do to fix the problem with the WCDMA Band ?

Thank for your help
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