HUAWEI P30 Pro Vog L29 downgrade 10 to 9 for FRP

1. Download This File 
2. Put it in your SD card.
3. Go to Emergency call Keypad
4. Dail *#*#2846579#*#* 
5. Go to update by SD card
6. Phone will restart and updating will start automatically 
7. Let it be finish and wait for the phone startup normally 
8. Then you can remove your frp by Safemode method

P30 pro vog l29 downgrade 10 to 9 for FRP