The "Dev Tools" app requires accessibility to turn on or off some developer options automatically to save your time. We promise not to collect your information through accessibility, please feel free to turn it on.
The following are the steps to turn on "Accessibility Services". The steps to turn off "Accessibility Services" are similar, just choose to turn off in the last step.
(1) Samsung
Phone: Open "Settings" -> "Accessibility" -> "Installed apps", select "Dev Tools - Development efficiency tool" from the list and open it.
Tablet: Open "Settings" -> "Accessibility" -> "Installed services", select "Dev Tools - Development efficiency tool" from the list and open it.
(2) XiaoMi
Phone: Open "Settings" -> "Additional settings" -> "Accessibility" -> "Downloaded apps", select "Dev Tools - Development efficiency tool" from the list and open it.
Tablet: Open "Settings" -> "Additional settings" -> "Accessibility" -> "Downloaded apps", select "Dev Tools - Development efficiency tool" from the list and open it.
(3) Oppo
Phone*: Open "Settings" -> "Additional settings" -> "Accessibility" -> "Downloaded apps", select "Dev Tools - Development efficiency tool" from the list and open it.
Tablet*: Open "Settings" -> "Additional settings" -> "Accessibility" -> "Downloaded apps", select "Dev Tools - Development efficiency tool" from the list and open it.
(4) Vivo
Phone*: Open "Settings" -> "Shorctcut and accessibility" -> "Accessibility" -> "Downloaded services", select "Dev Tools - Development efficiency tool" from the list and open it.
Tablet*: Open "Settings" -> "Shorctcut and accessibility" -> "Accessibility" -> "Downloaded services", select "Dev Tools - Development efficiency tool" from the list and open it.
(5) Realme
Phone*: Open "Settings" -> "Additional settings" -> "Accessibility", select "Dev Tools - Development efficiency tool" from the "More" list and open it.
Tablet*: Open "Settings" -> "Additional settings" -> "Accessibility", select "Dev Tools - Development efficiency tool" from the "More" list and open it.
(6) Huawei
Phone*: Open "Settings" -> "Accessibility features" -> "Accessibility" -> "Installed services", select "Dev Tools - Development efficiency tool" from the list and open it.
Tablet*: Open "Settings" -> "Accessibility features" -> "Accessibility" -> "Installed services", select "Dev Tools - Development efficiency tool" from the list and open it.
(7) Honor
Phone: Open "Settings" -> "Accessibility features" -> "Accessibility", select "Dev Tools - Development efficiency tool" from the "Downloaded Services" list and open it.
Tablet: Open "Settings" -> "Accessibility features" -> "Accessibility", select "Dev Tools - Development efficiency tool" from the "Downloaded Services" list and open it.
(8) Other Android phones
Phone: Open "Settings" -> "Accessibility", select "Dev Tools - Development efficiency tool" from the "Downloaded Apps" list and open it.
Tablet: Open "Settings" -> "Accessibility", select "Dev Tools - Development efficiency tool" from the "Downloaded Apps" list and open it.
More frequently questions can be found at: FAQ and Solutions.