If your phone has a MediaTek processor and you need to "re-flash" or fix a system error.
Abaixo há três ferramentas comuns que podem ajudar dependendo do que você quer dizer por “tirar flash” (remover efeito de flash na câmera, desabilitar notificação LED/flash ao receber chamadas/alertas, ou remover função de flash forçado via app):
Flashing tools are used to reinstall an operating system, upgrade firmware, or repair a bricked phone. The right tool depends on your phone's processor (chipset) or brand.
It looks like you're asking for a guide on how to download a program to remove flash/glare from photos, but you mentioned both "Android phone" and "install for PC."