Hi, Huawei mate 20 user here. I have a problem with the app as the app had not uninstalled fully hence this problem. Searched google and yes they were right, chanced upon
Case for Huawei Mate 20 PRO - Pokémon Go Tema Blue
Pokemon Go Logo Team Valor Huawei P30 Lite Case | Case-Custom
Pokemon Pikachu GO Gengar Soft Casing for Huawei Nova 3i 3 5t 2i 2 4E 7
Coque Huawei P30 PRO - Pokemon Go Team Msytic Bleu - Cdiscount Téléphonie
POKÉMON GO | CÓMO USAR EN HUAWEI? - YouTube
Pokémon Go' update closes worrisome privacy loophole - MarketWatch
POKEMON GO EN HUAWEI SIN SERVICIOS GOOGLE - YouTube