Use APKPure App
Get CLIP DISPLAY 設定プラグイン for Gmail old version APK for Android
SHARP made CLIP DISPLAY set is a plug-in that adds a Gmail reception function in / CLIP DISPLAY set for PHS.
SHARP made CLIP DISPLAY set is a plug-in that adds a Gmail reception function in / CLIP DISPLAY set for PHS. Ymobile WX03SH will be required in addition to the smartphone in use.
Detailed usage, refer to the following page.
http://k-tai.sharp.co.jp/support/w/wx03sh/manual.html