■ On Samsung ONE UI 4.0 (Android OS 12):
Long tap on KKBOX icon → tap the ⓘ icon → [Battery] → choose [Unrestricted].

【1】Battery Setting:
1. Long tap on KKBOX icon → tap the ⓘ icon → [Battery] enable [Allow Background Activity].
2. Go back to [Battery] page and choose [Optimize battery usage] → find and turn off [KKBOX].
3. Tap the [Setting] app → [Battery and device care] → [Battery] → [Put used apps to sleep] and remove "KKBOX" from [Sleeping apps] and [Deep sleeping apps].
4. Add "KKBOX" to [Never sleeping apps].

【2】Data Usage:
1. Tap the [Setting] app → [Apps] → [KKBOX] → [Mobile data] → [Data usage] and turn on [Allow background data usage].
2. Turn off [Restrict background data].
3. Tap the [Setting] app → [Connections] → [Data usage] → [Data saver] and turn off data saver.
　※If you prefer enabling the [Data saver] option, choose [Allowed to use data while Data saver is on] and choose [KKBOX].

【1】Battery Setting:
1. Tap the [Setting] app → [Apps] → [KKBOX] → [Battery] → [Data usage] and turn on [Allow background data usage].
2. Go back to [Battery] page and turn off [STAMINA mode] and [Ultra STAMINA mode].

【2】Data Usage:
Tap the [Setting] app → [Network & Internet] → [Data usage] → [Data saver] and turn off data saver.
　※If you prefer enabling the [Data saver] option, please go to [Setting] app → [Apps & notifications] → [App info] → [All apps] → [Internet service] → [Data usage] → [App data usage] and enable [Background data] and [Unrestricted data usage].

【1】Battery Setting:
Refer to this Google Help to turn off [Adaptive Battery] and [Battery optimization].

【2】Data Usage:
Refer to this Google Help to turn off [Data Saver].

【1】Battery Setting:
1. Tap the [Setting] app → [Apps] → [KKBOX] → [Battery] → [Data usage] and turn on [Allow background data usage].
2. Go back to [Battery] page and choose [Optimize battery usage] → find and turn off [KKBOX].
3. Go back to [Battery] page and turn off [Data saver].

【2】Data Usage:
Tap the [Setting] app → [Network & Internet] → [Data usage] → [Data saver] and turn off data saver.
　※If you prefer enabling the [Data saver] option, please enable [Background data] and [Unrestricted data usage].