很多人都懒的更改“默认”的识别码设置，而同一网络或制造商的识别码常常是统一的。

Many people don't bother to change their "default" pin setting, which will often be uniform across a network or make of phone.

youdao

很多人都懒的更改“默认”的识别码设置，而同一网络或制造商的识别码常常是统一的。

Many people don't bother to change their "default" pin setting, which will often be uniform across a network or make of phone.

youdao