Slater91
100+ Head-Fier
@Andykong, unfortunately the issue is Cayin removed the "Applications" page in the Settings app so the steps you indicated aren't applicable and there's no easy way to circumvent this issue, as I told you almost one year ago (and history finally proved me right, alas). If I may suggest/ask for a new feature for the next firmware release, this would be reintroducing the "Applications" page, as that is key to grant users full control over applications and come out of situations like this.
My suggestion for everyone who has this issue is to manually install via APK an alternative launcher (say, Nova Launcher). You can find fully legal and free APKs on apkmirror, as an example. You have to load the APK on the device's memory (either internal or external), then navigate to its location using ES File Explorer (which should be pre-installed and therefore available after a hard reset) and install the APK. Then you have to open the launcher as an app from the drawer, long-press the Google Play Store icon and select "app info". There you have access to the "clear cache" and "clear data" controls.
I know it's a bit complicated; if you need a more complete guide with step-by-step instructions I can create one.
My suggestion for everyone who has this issue is to manually install via APK an alternative launcher (say, Nova Launcher). You can find fully legal and free APKs on apkmirror, as an example. You have to load the APK on the device's memory (either internal or external), then navigate to its location using ES File Explorer (which should be pre-installed and therefore available after a hard reset) and install the APK. Then you have to open the launcher as an app from the drawer, long-press the Google Play Store icon and select "app info". There you have access to the "clear cache" and "clear data" controls.
I know it's a bit complicated; if you need a more complete guide with step-by-step instructions I can create one.