disc] EMUI 9 C432 P20 Pro UK. Dload mode with service firmware. It does erase all data be warned. Link is here. Dload folder contains both the files for L09 and L29.
Huawei P20 Pro (CLT-L29) EMUI 9.0 update is live on T-Mobile (US)! [news] : r/Huawei