Repair and disassembly information for Samsung's flagship S20+ Android smartphone, released in March of 2020.
Hopkins Deeper @hopkinsdeeper
声誉积分: 1
发帖于: 2024年11月12日
When I type ussd code on the dialer it does not popup and it's keep saying "connection problem or invalid mmi code. Please I want solution to solve it.
这是一个好问题吗?
jayeff @jayeff
声誉积分: 521.3千
11
398
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Hi @hopkinsdeeper
Check your service providers website to see if they still support ussd codes.
Where I am (Australia) all the major carriers have phased it out
这个答案有帮助吗?
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