I am using my GT-I9305 for testing of mobile base stations (need to be able to lock mobile to the 1800 MHz LTE). When i was using stock android ver 4.1.2 - it was possible to open service mode from dialer (*#197328640#)
After adnroid update to ver 4.3 it is not longer possible.
I am trying to find solution to have back Service Mode on my mobile.
Maybe somebody can help me to find solution.
1. I rooted my phone and in /system/apps there is app called serviceModeApp.apk
i cannot find here ServiceModeApp_RIL.apk
there is also no HiddenMenu.apk here
2. In /efs/carrier there is file called HiddenMenu and when i edit this file it contains word OFF
I have changed OFF to ON in /efs/carrier in file HiddenMenu
I copied into /system/apps ServiceModeApp_RIL.apk, HiddenMenu.apk and i overwrited serviceModeApp.apk (i get version from android 4.1.2)
And nothing works for me.
I will apreciate any help.
I was wondering - if it is possible to add Service Mode into custom rom, maybe it will be possible to ADD it to the stock rom (copying some files, changing some files...) XDA is place with most experienced android experts - maybe somebody will find a minute to help me ? Please!