If you have forgotten the credentials entirely and own the device (keep your proof of purchase handy), you will likely need to use hardware flashing tools. Because the CDY-NX9A runs on EMUI 10+, standard Google FRP bypass apps no longer work.
If your CDY-NX9A is still on EMUI 10.1 or earlier (check in Settings > About Phone before you get locked out), you might use the method. cdy-nx9a huawei id remove
Unlike older Android devices, Huawei stopped providing official bootloader unlock codes to the public several years ago. For the CDY-NX9A (Nova 7i), getting an unlock code requires: If you have forgotten the credentials entirely and
If you are the owner, recover via email/SMS. If you are a technician, invest in an HCU client subscription. If you are a second-hand buyer, return the phone to the seller. The time and money spent on risky "free" methods outweigh the cost of legitimate service. If you are a second-hand buyer, return the