Repairing the dual SIM IMEI on a Redmi 9T (lime) post-update requires removing the RSA resistor on the motherboard via micro-soldering to bypass hardware write protection. After hardware modification, the device must be placed in EDL mode using test points to flash a clean QCN file and restore the original IMEI numbers. For detailed instructions and layout diagrams, visit the Facebook group post . Redmi 9T Qualcomm dual IMEI repair issue - Facebook