How can modify the date writien in BLE module?

[sforsajith]

Just consider In my low energy Bluetooth module(QN908X) has a source code which contain 'date' information,

by using android how can i modify the date information?

GATT write option is suitable for this method? any other way? Any android application that i want to download? please explain?

[estephania_mart]

Hello, 

It will depend on your application, but it would seem that you will be creating a custom profile. Will your device be a server or client? Are there any other requirements? 

Could you please check this post and let me know if something it is not clear fo you? 

https://community.nxp.com/docs/DOC-332703 

https://community.nxp.com/docs/DOC-328287

Regards, 
Estephania