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--- manual:faq:bt_sleep_issues [2018/08/22 10:52] – created mstupka
+++ manual:faq:bt_sleep_issues [2024/12/03 11:50] (current) – [Essential measures] mstupka
@@ Line 4: / Line 4: @@
 <WRAP center round info>
-If you loose BT connection during track recording only when the display is OFF for at least 1 to 3 hours you may have a [[manual:faq:gps_lost_fix_android6|battery power saving setup issue]]. Following solutions do not help if you have stable BT connection during track recording with display allways ON.
+If you loose BT connection during track recording only when the display is OFF for at least 3 hours you may have a **[[manual:faq:gps_lost_fix_android6|battery power saving setup issue]]**. Following solutions do not help if you don't have stable BT connection during track recording with display allways ON.
 </WRAP>
-===== I. Essential measures =====
+===== Essential measures =====
+  - make sure Locus Map has permission to access nearby devices:\\ {{ :manual:faq:faq08.jpg?nolink |}}
   - apply **[[manual:faq:gps_lost_fix_android6|all instructions described here >>]]**
   - especially **disable battery optimization for bluetooth** system services **[[manual:faq:gps_lost_fix_android6#system_battery_optimization_mode|as is described here >>]]** (at least for Android 6 and 7 on Sony and Samsung devices) - you may need to toogle **show all system services**. Disable battery optimization for following services:
-    * Bluetooth MIDI Service
+    * **Bluetooth MIDI Service**
-    * Bluetooth Sharing
+    * **Bluetooth Sharing**
-  - clear cache and remove data of Android Bluetooth system services - settings > apps > 3-dots -> show system processes:
+  - **clear cache and remove data** of Android Bluetooth system services - settings > apps > 3-dots -> show system processes:
-    * Bluetooth MIDI Service
+    * **Bluetooth MIDI Service**
-    * Bluetooth Sharing
+    * **Bluetooth Sharing**
-  - restart Android and the issue should be gone in most cases
+  - **restart Android** and the issue should be gone in most cases
+===== What to do if essential measures don't work? =====
-If you still have issues with loosing BT connection during long time in standby, you could try to do the following steps which are less likely to fix anything:
+If you still have issues with loosing BT connection during longer time in standby, you could try following steps (without warranty it'll help at all):
-some broken android firmwares do disable BT during sound profil check even if they are disabled: remove all do not disturb sound profiles in settings -> sounds
+  * some broken Adroid firmwares turn BT off during sound profile check even if the profiles are disabled: **remove all do not disturb sound profiles in settings -> sounds**
-you may have some third party apps on your phone which do disable BT for example apps like "Tile" does reconnect BT in background
+  * you may have some **third party apps** on your phone which disable BT, for example apps like "Tile" often reconnect BT in background
-maybe other suggestions could help you https://productforums.google.com/forum/#!topic/phone-by-google/UamV0tnZKNE
+  * **[[https://productforums.google.com/forum/#!topic/phone-by-google/UamV0tnZKNE|here are more suggestions that can help >>]]**
-And if everything does fail and you need to use display allways on as workarround. You could reduce the screen on time if you turn your display on each hour right before the BT connection go to sleep.
-Install app "Tasker"
+===== Third way - "Tasker" workaround =====
-create a loop which wait 1 hour every time
-add a turn display on action (Anroid 5+ need an additional tasker plugin App "Secure Settings" to get access to add Task > plugins -> secure settings ->wake device >screen on)
-add a notification "wake display %TIME" to tell you that your workaround is running
-optional if you did disable lockscreen, start a touchscreen lock app to prevent inputs during your screen on action.
-optional add a display off (display lock) action if you don't have any display timeout
-This will prevent your android device from entering any deep sleep states but drain way less power then display allways on.
+If everything above fails, you may need to use **display always on** as a workaround. You can reduce the screen time if you turn your display on each hour right before the BT connection goes to sleep:
-If you have BT problems even with display allways on, you have maybe an android hardware problem, environment problem or BT transmitter problem. Check if your BT transmitter is causing the problem. Some devices stop sending data on fireware specific conditions. If you don't have any issues with track recording or sometimes the connection got interupted by your testing environment. (hardware issue or signal interferences. Try to make a track recoding with screen always on in a controlled static envirnoment with less wireless and bt interferences as possible.
+  - Install app **Tasker**
+  - create a **loop of 1 hour** waiting every time
+  - add a **turn display on action** (Android 5+ needs an additional tasker plugin app "Secure Settings" to get access to add //task > plugins > secure settings > wake device > screen on//)
+  - add a notification **wake display %TIME** to confirm your workaround is running
+  - //optional// - if you **disable lockscreen**, start a **touchscreen lock app** to prevent inputs during your screen on action
+  - //optional// - add a **display off** (display lock) action if you don't have any display timeout
+This prevents your Android device from entering any deep sleep states but drains way less power than when display is always on.
+<WRAP center round info>
+If you have BT problems even with the display always on, you may have a hardware problem, environment problem or BT transmitter problem.
+</WRAP>
+For more information, read on in **[[http://help.locusmap.eu/topic/create-faq-entry-for-solving-bt-sleep-issues|this >>]]** or **[[http://help.locusmap.eu/topic/bt-gps-reconnection-time-take-some-minutes|this helpdesk thread >>]]**

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