This Xposed module allows you to manually override the headphone jack detection of an Android device.
Most smartphones provide a headphone/headset jack that allows using a headset instead the internal speaker/microphone. To automatically select between these, a mechanical switch is added to detect a plugged in cable. If this switch breaks and replacing it is not realistic, your phone may become more or less unusable. With this module you are able to manually control the headphone detection state and continue using your phone.
If you plug in a headset i.e. a headphone with an additional microphone, this external microphone is used for calls. This may not be wanted in case of bad audio quality, a broken cable or microphone. The module allows to override to headphone instead of headset. If the cable plug in/out detection works, a hybrid mode allows to use this feature.
Many Phones (e.g. Oneplus 7 Pro) without a 3,5mm audio jack recognise a 3,5mm-Jack-Headset with USB-adapter as an external audiospeaker. The result is a very strong echo for the other side of a phone call. This module allows to solve the problem.
This is a module for the Xposed framework so you need it installed on your phone. For installation and further information refer to their FAQs. After installing the XOverrideHeadphoneJackDetection apk, it should be added in the list of modules. Before it will become active you have to enable it in the Xposed Installer's Module section and reboot your phone. You can check the Logs section to see if this module was loaded properly. The default behavior is to override to no headphone detected. In the GUI you can change the behavior. Your changes will be stored and reapplied after reboots. The GUI does not fetch the active configuration upon start! This may be changed in future versions.
This module hooks with the help of the Xposed framework into the android system servers WiredAccessoryManager class and manipulates the parameters of the method notifyWiredAccessoryChanged before it's called. The GUI uses android intent broadcasts as IPC to configure the module functionality at runtime. This is necessary since the GUI runs in another context and not able to share a config file with the hooked process without messing around with app permissions.
adb shell am broadcast -a de.antonarnold.android.xoverrideheadphonejackdetection.ConfigReceiver --ei overrideEnable 1 --ei overrideValue 4 --ei overrideMask 255
adb shell am broadcast -a de.antonarnold.android.xoverrideheadphonejackdetection.ConfigReceiver --ei overrideEnable 1 --ei overrideValue 20 --ei overrideMask 255
adb shell am broadcast -a de.antonarnold.android.xoverrideheadphonejackdetection.ConfigReceiver --ei overrideEnable 1 --ei overrideValue 0 --ei overrideMask 255
adb shell am broadcast -a de.antonarnold.android.xoverrideheadphonejackdetection.ConfigReceiver --ei overrideEnable 0Copyright (C) 2019 Anton Arnold
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.