Why is my iPhone 5s cant activate?
truly, my 5s is GPP UNLOCK. ios 12, but how to activate this version?
苹果 iPhone 5s 于2013年9月10日公布。该设备的维修与以前的型号相似，需要螺丝刀和撬棒。可使用GSM或CDMA / 16、32或64 GB。颜色有银色、金色和太空灰。
Here is your answer:
GPP is a SIM spoofing tool that is inserted into a carrier locked phone along with your local SIM in order to bypass the carrier restrictions and can be used on local networks. However, this SIM tool usually has limitations such as no LTE support and firmware compatibility, meaning if iOS updates to the latest version, the tool might not work. GPP unlocked iPhones are way cheaper than factory unlocked iPhones as a majority of these are region or carrier locked or even refurbished, possibly stolen surplus iPhones coming from China, Korea, and Japan. https://www.quora.com/What-is-GPP-unlock...