(Q) how to access service mode with secret code? - Galaxy S6 Edge Q&A, Help & Troubleshooting

Hello,
I need to manually select the LTE band in my phone, because there are two working bands in my area and the phone automatically select one.
I can access the LTE info using *#0011#
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But i cant get to the main menu where i can select the band.
Any one have any idea about this?

I have the same question.
Also what does "Ant RSRP Diff" mean?

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the following screen will appear
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"lightbox_start_slideshow": "Start slideshow",
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ScreenShot:
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"lightbox_download": "Download",
"lightbox_share": "Share",
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"lightbox_new_window": "New window",
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