For test point method, ground the CLK point near the SIM slot while connecting USB – but look up a disassembly video specific to BLL-L21.
The Huawei BLL-L21 device, like other Android devices, is not immune to the FRP lock issue. If you're facing an FRP lock on your Huawei BLL-L21, you may encounter the following challenges: huawei bll-l21 frp unlock tool
is a highly effective, free-to-use software for PC that supports the Huawei BLL-L21 For test point method, ground the CLK point
Unlike Samsung or Xiaomi FRP tools that run via a simple APK or Windows GUI, the BLL-L21 often requires: These boxes are physical USB tools that automate the process
For repair shop owners. These boxes are physical USB tools that automate the process.
The BLL-L21 runs on a Kirin 655 chipset with Android 6.0–8.0. FRP on this device is not as hardened as newer Huawei models with EREC (eFactory Reset Protection).