https://devzone.nordicsemi.com/f/nordic-q-a/63872/androi-studioI trying to connect with ble, i was setup MyBleManager extend BleManager and initialize with the default values ​​it requires but i haven&#39;t declare and add UUID in BleManagerGattCalback. I think it&#39;s not a problem, so the problem that iam having whenen-USTelligent Community 13Tue, 04 Aug 2020 14:06:06 GMThttps://devzone.nordicsemi.com/thread/263044?ContentTypeID=1Tue, 04 Aug 2020 14:06:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7808ad7d-e0a5-4410-838e-ccce55fa879dAleksander Nowakowski<p>Hello,</p> <p>We had a bit of vacation situation in here. Hope you are doing fine.</p> <p>Please, check out <a href="https://github.com/NordicSemiconductor/Android-nRF-Blinky" rel="noopener noreferrer" target="_blank">nRF Blinky</a>&nbsp;app for a reference how to set up BLE Library. In app&#39;s build.gradle it sets dependency to ble library:<br /><a href="https://github.com/NordicSemiconductor/Android-nRF-Blinky/blob/2f3a06bf0e0c62a8172ac7fe2d872ac62ec19d84/app/build.gradle#L53">https://github.com/NordicSemiconductor/Android-nRF-Blinky/blob/2f3a06bf0e0c62a8172ac7fe2d872ac62ec19d84/app/build.gradle#L53</a>&nbsp;(actually to ble-livedata, which is an extension to it).</p> <p>Then, follow this class:&nbsp;<a href="https://github.com/NordicSemiconductor/Android-nRF-Blinky/blob/master/app/src/main/java/no/nordicsemi/android/blinky/profile/BlinkyManager.java">https://github.com/NordicSemiconductor/Android-nRF-Blinky/blob/master/app/src/main/java/no/nordicsemi/android/blinky/profile/BlinkyManager.java</a>&nbsp;where the manager is implemented.</p> <p>We recommend using the latest version of the BLE library, which is now 2.2.3 (<a href="https://github.com/NordicSemiconductor/Android-BLE-Library/">https://github.com/NordicSemiconductor/Android-BLE-Library/</a>).</p> <p>If you need more assistance, please state your problem more clearly and provide some logs.</p><div style="clear:both;"></div>