用户投稿Okay, let's break down the significance of the iPhone "卡贴机" (card sticker / eSIM patch) and its impact on locked iPhones.
You're right to point out that the "卡贴机" effectively turned a part of the locked iPhone ecosystem into an unlocked one, which was indeed a significant development for users. Here's a more detailed look at its划时代意义 (epoch-making significance):
1. "Breaking the Physical SIM Lock (Simultaneously):"
"Before:" A "卡贴机" was essentially a thin plastic or metal sheet with a built-in micro-SIM card reader. You inserted your carrier's physical SIM card into the sticker, and then placed the sticker inside the iPhone's SIM card tray. This tricked the iPhone into thinking it was using a physical SIM, bypassing the hardware-level lock that prevented users from easily changing carriers.
"Significance:" This was the first widely accessible, relatively low-cost, and hardware-based method to completely bypass the physical SIM lock on modern iPhones (and other locked smartphones) without needing specialized hardware like a developer account or JTAG/TFU exploit. It offered a "plug-and-play" (almost) solution for unlocking the device's primary connectivity method.
2. "Enabling eSIM on Locked iPhones (The "划时代" Part):"
"The Problem:" While the physical SIM was unlocked, the iPhone still had
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花两千多捡的美版有锁iPhone，下一秒就被运营商锁死，这种心梗Double-SIM听懂了。 10月27号他们甩出一句：C1基带被撬开，eSIM区直接变“公共厕所”，谁都能进。
拆机焊指甲盖大小的DB IC，有锁机瞬间化身“半无锁”。 实体卡照旧走卡贴，eSIM通道却彻底裸奔，国外套餐扫码即装，一分钟切换。
留学生原地蹦高：宿舍的Wi-Fi下秒开香港eSIM，包年两百块，比校园网还便宜。 国内用户只能干瞪眼，政策墙还在，空有硬件，等于拿到钥匙却进不了门。
别急着加价收卡贴机，商用时间没谱，苹果下次小更新就可能重新上锁。 真正赚的是手里囤着海外eSIM的那批人，手机+套餐打包，二手价直接抬盘。
想省钱？先问自己一年出几次国。 不出国，这功能就是橱窗里的蛋糕，看得见，吃不到，还诱惑你掏腰包。
硬件破解永远跑在法规后面，今天爽，明天封，后天拆机费又得两百。 iPhone值不值，关键看信号，不看出身，别为一句“半无锁”冲动买单。
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