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Do not change your IMEI to a different number. In jurisdictions like India (Section 419 of IT Act), the EU, and the USA (FCC regulations), cloning or altering an IMEI is a felony. These tools should only be used to restore your device's original factory IMEI after a firmware failure. oppo f11 imei repair unlock tool top
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Apps like "MTK Engineering Mode" or "IMEI Changer" claim to fix IMEI without a PC. and the USA (FCC regulations)