Yes, but you cannot safely do this using the standard DLOAD method due to security locks. To safely downgrade, install on a PC, connect your phone normally, click on Update , select Switch to Other Version , and choose the older available official firmware. Where can I safely download the STK-LX3 firmware?
Some users prefer Android 9 Pie for better battery life or Xposed framework support. You need the older firmware package. Firmware Huawei Y9 Prime 2019 Stk-lx3
Changes your EMUI version to a preferred stable release. Requirements Before Proceeding Yes, but you cannot safely do this using