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原帖由 KING 于 2009-6-23 00:31 发表
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为了安全原因,AKEY、IMSI等重要数据不是可以随便修改的,必须有这个密码才可以。这个密码是和机器自身串号MEID/ESN一一对应的。 1 E. ]5 J9 ]9 m( {9 q" u
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是安全原因么?
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如果MSL代表Master Subsidy Lock的话,在WIKI上有这样一段:. q f7 N/ z, M: `0 [, R* S/ k
When a cellular phone is purchased in combination with a cellular service agreement (contract), new or renewal, directly from a carrier or through a dealer, the price of the phone is usually discounted due to a "subsidy" by the carrier, which expects to make back the subsidy over the course of the service agreement. Part of the way carriers ensure that will happen is by "locking" the phone to the carrier so that it can't be used on the service of another carrier. This particularly applies to GSM where all that's needed to switch carriers is to switch the SIM.
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8 `" L" w; d7 v) q3 @5 L' @就是说这是一个“补贴锁定”,运营商SPRINT花钱补贴手机了,用户拿到手才便宜,条件是用户要签约;反过来,运营商这边当然不希望看到用户拿着自己补贴的手机去入别人的网了,所以就加了这么一个锁,让你入不了别人的网。据此分析,SPRINT官方肯定不会同意把这个泄露给用户的。SPRINT能查这个,也是内鬼私底下做的吧。。。 |
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