Sony Xperia 10 II -Dual SIM Cellular Network Registration fails

REPRODUCIBILITY: 100%
OS VERSION: 5.0.0.68
HARDWARE: Sony Xperia 10 II -Dual SIM
UI LANGUAGE: English (US)
REGRESSION: ?

DESCRIPTION:

Cellular Network Registration fails, neither 3G or 4G with VoLTE.

PRECONDITIONS:

SIM card from Chunghwa Telecom works well on android phone.

STEPS TO REPRODUCE:

No such information.

EXPECTED RESULT:

Cellular Network Registration sucessed with 3G or 4G with VoLTE.

ACTUAL RESULT:

Cellular Network Registration fails, neither 3G or 4G with VoLTE.

MODIFICATIONS:

No.

ADDITIONAL INFORMATION:

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