This system is quite secure up to the point when the IMEI or the certificate is damaged. Conclusively, the input of the IMEI or other certificates is not enough since the modem will not accept it. The integrity of the modem is controlled by other peripheries at lower levels. The certificate is being checked by the modem. This certificate cannot be reproduced since solely the manufacturer owns the private key to create it.
Practically, this make it impossible to clone an IMEI number.
This certificate includes, among others, a certain data of the IMEI and, in case of new models, an ID code of the given phone to prevent the re-use of the certificate in a different phone. Basically, this is a digital data that gets connected to the given phone during manufacturing and it also gets signed by the manufacturer (this is the so-called Certificate). To answer these questions, here is some streamlined background information about how the phones work software-wise.Ĭommon knowledge that every phone has a serial number (IMEI). The first reasonable question is why IMEI repair or Patch CERT functions are needed? Are you looking for solution to repair IMEI number on new Samsung phones or just want restore a backup/purchased cert file?
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