crwdns2935425:01crwdne2935425:0
crwdns2931653:01crwdne2931653:0
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Enter the following code *#*#7378423#*#* into the dialler.
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You can choose between:
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- Service info
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- Service settings
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- Service tests
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- Callibration
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- Customization Settings
crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0