[Android Q&A, Help & Troubleshooting] JVitor:
I have got this generic Chinese GPS with DVR model M515 or M515_80s with 8GB internal memory/flash. Original stock ROM did not have Google apps. I managed to find a newest firmware version with Google apps.

Device info from MTKDroidTools:

Hardware : MT8127

Model : m515

Build number : ALPS.KK1.MP10.151110.v1.6

Build date UTC : 20151020-084127

Android v : 4.4.2

Baseband v: -----

Kernel v : 3.4.67 (ssp@ad215-desktop) (gcc version 4.7 (GCC) ) #1 SMP Tue Oct 20 16:38:05 HKT 2015

Uboot build v : -----

LCD Driver IC : 1-JTD_RGB_DEF_WVGA

Latest found firmware: https://mega.nz/#!aNJEWIQL!iTfNH4gEdBtneLZ4vwMRw1h7LaRdkBF_BJ9Zwl_5juc

Kernel log (logcat) files (7 Ways, GPS Test and Navitel): https://mega.nz/#!SIplDARI!9fH-UCpvWEvGH2p25afrAMWiv58vQHOmocaKc4byK5E

Description of the problem:

7 Ways navigator loses satellite connection at about 10-12 minutes while navigating on road, as if the vehicle had come to a halt/stopped. The apps Satellite settings shows status is connected to GPS module but with no available satellites. Menus remain operational, but clicking the exit button crashes the app.

Notes:

1. The same problem occurs with GPS Test Plus.The difference being that it is as the app has frozen. Menus keep responding, but app crashes on command to exit.

2. I have tested other navigators such as Navitel and iGO for Android and they work normally.

3. 7 Ways works normally in UMI C1 which is also Android 4.4.2.

System Tuner log:

System Tuner Pro (logcat)

======================

Process 7ways(com.navikey.seven_ways)

E/17:14:08.313	... 28 more

E/17:14:08.313	at android.hardware.input.InputManager.getInputDevice(InputManager.java:212)

E/17:14:08.313	at android.hardware.input.IInputManager$Stub$Proxy.getInputDevice(IInputManager.java:259)

E/17:14:08.313	at android.os.BinderProxy.transact(Native Method)

E/17:14:08.313 Caused by: android.os.TransactionTooLargeException

E/17:14:08.313	at dalvik.system.NativeStart.main(Native Method)

E/17:14:08.313	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:641)

E/17:14:08.313	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:825)

E/17:14:08.313	at java.lang.reflect.Method.invoke(Method.java:515)

E/17:14:08.313	at java.lang.reflect.Method.invokeNative(Native Method)

E/17:14:08.313	at android.app.ActivityThread.main(ActivityThread.java:5323)

E/17:14:08.313	at android.os.Looper.loop(Looper.java:150)

E/17:14:08.313	at android.os.MessageQueue.next(MessageQueue.java:138)

E/17:14:08.313	at android.os.MessageQueue.nativePollOnce(Native Method)

E/17:14:08.313	at android.view.InputEventSender.dispatchInputEventFinished(InputEventSender.java:141)

E/17:14:08.313	at android.view.inputmethod.InputMethodManager$ImeInputEventSender.onInputEventFinished(InputMethodManager.java:2057)

E/17:14:08.313	at android.view.inputmethod.InputMethodManager.finishedInputEvent(InputMethodManager.java:1748)

E/17:14:08.313	at android.view.inputmethod.InputMethodManager.invokeFinishedInputEventCallback(InputMethodManager.java:1757)

E/17:14:08.313	at android.view.inputmethod.InputMethodManager$PendingEvent.run(InputMethodManager.java:2080)

E/17:14:08.313	at android.view.ViewRootImpl$ImeInputStage.onFinishedInputEvent(ViewRootImpl.java:4156)

E/17:14:08.313	at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3987)

E/17:14:08.313	at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3847)

E/17:14:08.313	at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3878)

E/17:14:08.313	at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3828)

E/17:14:08.313	at android.view.ViewRootImpl$EarlyPostImeInputStage.onProcess(ViewRootImpl.java:4172)

E/17:14:08.313	at android.view.ViewRootImpl$EarlyPostImeInputStage.processKeyEvent(ViewRootImpl.java:4188)

E/17:14:08.313	at android.view.ViewRootImpl.access$1800(ViewRootImpl.java:106)

E/17:14:08.313	at android.view.ViewRootImpl.checkForLeavingTouchModeAndConsume(ViewRootImpl.java:5432)

E/17:14:08.313	at android.view.ViewRootImpl.isTypingKey(ViewRootImpl.java:5394)

E/17:14:08.313	at android.view.KeyEvent.getUnicodeChar(KeyEvent.java:2550)

E/17:14:08.313	at android.view.KeyEvent.getUnicodeChar(KeyEvent.java:2574)

E/17:14:08.313	at android.view.KeyEvent.getKeyCharacterMap(KeyEvent.java:2517)

E/17:14:08.313	at android.view.KeyCharacterMap.load(KeyCharacterMap.java:334)

E/17:14:08.313	at android.hardware.input.InputManager.getInputDevice(InputManager.java:214)

E/17:14:08.313 java.lang.RuntimeException: Could not get input device information.

E/17:14:08.313 Process: com.navikey.seven_ways, PID: 5194

E/17:14:08.313 FATAL EXCEPTION: main

E/17:14:08.303	... 28 more

E/17:14:08.303	at android.hardware.input.InputManager.getInputDevice(InputManager.java:212)

E/17:14:08.303	at android.hardware.input.IInputManager$Stub$Proxy.getInputDevice(IInputManager.java:259)

E/17:14:08.303	at android.os.BinderProxy.transact(Native Method)

E/17:14:08.303 Caused by: android.os.TransactionTooLargeException

E/17:14:08.303	at dalvik.system.NativeStart.main(Native Method)

E/17:14:08.303	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:641)

E/17:14:08.303	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:825)

E/17:14:08.303	at java.lang.reflect.Method.invoke(Method.java:515)

E/17:14:08.303	at java.lang.reflect.Method.invokeNative(Native Method)

E/17:14:08.303	at android.app.ActivityThread.main(ActivityThread.java:5323)

E/17:14:08.303	at android.os.Looper.loop(Looper.java:150)

E/17:14:08.303	at android.os.MessageQueue.next(MessageQueue.java:138)

E/17:14:08.303	at android.os.MessageQueue.nativePollOnce(Native Method)

E/17:14:08.303	at android.view.InputEventSender.dispatchInputEventFinished(InputEventSender.java:141)

E/17:14:08.303	at android.view.inputmethod.InputMethodManager$ImeInputEventSender.onInputEventFinished(InputMethodManager.java:2057)

E/17:14:08.303	at android.view.inputmethod.InputMethodManager.finishedInputEvent(InputMethodManager.java:1748)

E/17:14:08.303	at android.view.inputmethod.InputMethodManager.invokeFinishedInputEventCallback(InputMethodManager.java:1757)

E/17:14:08.303	at android.view.inputmethod.InputMethodManager$PendingEvent.run(InputMethodManager.java:2080)

E/17:14:08.303	at android.view.ViewRootImpl$ImeInputStage.onFinishedInputEvent(ViewRootImpl.java:4156)

E/17:14:08.303	at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3987)

E/17:14:08.303	at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3847)

E/17:14:08.303	at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3878)

E/17:14:08.303	at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3828)

E/17:14:08.303	at android.view.ViewRootImpl$EarlyPostImeInputStage.onProcess(ViewRootImpl.java:4172)

E/17:14:08.303	at android.view.ViewRootImpl$EarlyPostImeInputStage.processKeyEvent(ViewRootImpl.java:4188)

E/17:14:08.303	at android.view.ViewRootImpl.access$1800(ViewRootImpl.java:106)

E/17:14:08.303	at android.view.ViewRootImpl.checkForLeavingTouchModeAndConsume(ViewRootImpl.java:5432)

E/17:14:08.303	at android.view.ViewRootImpl.isTypingKey(ViewRootImpl.java:5394)

E/17:14:08.303	at android.view.KeyEvent.getUnicodeChar(KeyEvent.java:2550)

E/17:14:08.303	at android.view.KeyEvent.getUnicodeChar(KeyEvent.java:2574)

E/17:14:08.303	at android.view.KeyEvent.getKeyCharacterMap(KeyEvent.java:2517)

E/17:14:08.303	at android.view.KeyCharacterMap.load(KeyCharacterMap.java:334)

E/17:14:08.303	at android.hardware.input.InputManager.getInputDevice(InputManager.java:214)

E/17:14:08.303 java.lang.RuntimeException: Could not get input device information.

E/17:14:08.286 Exception in MessageQueue callback: handleReceiveCallback

E/17:14:08.286 Exception dispatching finished signal.

E/17:14:08.286 !!! FAILED BINDER TRANSACTION !!!

I have links of the latest firmware/ROM, but I cannot post here due to forum restrictions.

Question:

1. How could I identify and possibly fix the cause of the problem?