HOW TO USE ENGINEERING MODE
a) Capture network events live over USB and accessphone with other tools
You will need the database file so obtain it doing the procedure under a)
Activate USB Debugging in Developer Options
Open MTKLogger preferences
In ModemLog menu change Log Mode to “USB Mode”
Install MTK USB drivers
Install ADB drivers
Connect your phone with USB cable to your PC
Open Catcher.exe
Select in Config → Database path your database file (BPLGU...)
Start recording with MTKLogger *important*
Select in Configure Port → Conn. Mode“Smartphone USB Logging (MD1)”
Select in Controls → Set Filter what you want to display or just select all
Check Advanced menu out, there will be e.g. SIM/USIM Editor
How to edit NVRAM
Install MTK USB drivers
Install Maui META
Power off your phone
Attach your phone to USB → VCOM port should get installed
Open META (it needs admin privileges to create log files under C:/)
Select in Options → Connect Smartphone into META mode
Press Reconnect button
Attach powered off phone to USB
Power on the phone → Phone should get stuck on boot screen and fail driver install
Open device manager, Select “ALL MTK Drivers” as driver update path
Gadget CDC VCOM appears
Detach phone from USB
Power off the phone (hold power key for 10 seconds or remove battery)
Close META and try again the steps 5-9
If not successful try again 5-9 and 12-13
META shows “Connected with target” → Phone is in META mode
Select NVRAM editor in drop down menu
Press “Read from NVRAM” button
Select database file (BPLGU...)
NVRAM Records that might be relevant for logging:
NVRAM_EF_PORT_SETTING_LID:
usb_logging_mode: 1
tst_output_mode: 1 (to file)
NVRAM_EF_TST_CONFIG_LID:
usb_dma_logging_enable: TRUE
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