The Vivo V9, like many Android devices running on Qualcomm Snapdragon chipsets, stores its NV (Non-Volatile) data—including the IMEI—in specific partitions. This data can become corrupted due to:
: Any unauthorized software modification will immediately void your manufacturer's warranty . Vivo V9 Youth PD1730BF Flash File (Stock Rom) - gsmmafia
Vivo V9 (PD1730F) original IMEI repair file from is designed to restore your phone's original IMEI numbers if they were lost after a firmware update or a factory reset. Preparation Requirements Original USB Cable