QCN File For Vivo V9 Repair IMEI & Unknown Baseband QCN File For Vivo V9 Repair IMEI & Unknown Baseband 28 February Bijendra Narsinghani Share To: QCN File For Vivo V9 Repair IMEI & Unknown Baseband Vivo V9 QCn file download from here. If you are owner of Redmi 6 Pro Qualcomm android smartphone and now getting any null IMEI or unknown baseband error then you have to repair Vivo V9. Otherwise, it will show no network in your device and you can’t make a call from your device. To fix invalid IMEI in Vivo V9, we are adding the working QCN file for Vivo V9 with IMEI repair tutorial. Simply follow the tutorial as it is as shown below and restore original IMEI on Vivo V9 within few steps. No need to use any professional tool to repair IMEI in Vivo V9 mobile. Let’s see “how to solve invalid IMEI problem in Vivo V9 without box?” Vivo V9 Qcn File For 1. No service problem fix. 2. Imei problem fix. 3. Network unlock problem fix. 4. After flash no service fix. Download Vivo V9 Qcn File Requirement’s: Vivo V9 QCN File QCN tool QPST How To Repair Vivo V9 IMEI Unknown Baseband Fix: Download QCN Rebuilder and QCN File From above Run QCN Rebuilder Load Download QCN Replace IMEI With the Origenal IMEI then Rebuild QCN Enableusb Debugging From Developer options Connect Phone to PC using USB then Enable Qualcomm USB diag port (using below code over adb) adb devicessusetprop sys.usb.config rndis,diag,adb Note: if the Phone is Not Rooted Then use EDL and BOX Like UMT Or just Dial This Number With Dialer to enable Diag. *#9090# , *#*#13491#*#*, *#*#717717#*#* Launch QPST Software Downloaded Tool from above. Click on Restore Tab. Choose Your Phone By Clicking on First Browse.. Button. Select Rebuiled QCN File ***.xqcn file [Downloaded From above]. Now Hit the Start Button. Done. if the Dual IMEI Writer unable to Rewrite Correct IMEI Then use hex Converter to Find and Replace Installed IMEI.