@ Chimera Tool Team please add this model for unlock and repair Imei ,
Model = LG MS770
Code:
Chimera Mobile Phone Utility version: 14.54.1007 @ 2017-07-28
[Development Support started. Thank you for your help!]
Processing...
Android Version: 4.0.4
Getting port information...
Protocol test. #1
No LG modem ports found... waiting for one port to appear.
No LG modem ports found... waiting for one port to appear.
Protocol test. #5
Waiting for serial port to appear...
 Please set the phone into download mode manually.
Unplug the phone from USB.
Turn off the phone.
Press and hold 'volume up'.
Replug the device to USB while holding 'volume up'.
Waiting for download mode serial port to appear...
If the device is stuck in dowload mode, remove the battery to reset the device.
 Please enable 'Port Check Test'. If enabled, run the development support again. Thank you!
How to enable 'Port Check Test' or 'DIAG port' on your LG phone:
There are many different ways to enable this option, but not all of them will work on all phones. Try them out one-by-one

Dial in the following codes on your phone (without pressing call). If the code works a hidden menu will appear. Find the option 'Port Check Test', and set it to 'Enabled'. It is usually in the top menu or in the 'SVC Menu' submenu.
277634#*#
3845#*<numbers in model name here>#
*#546368#*<numbers in model name here>#
In case you cannot get to the hidden menu, or the hidden menu does not contain the option 'Port Check Test', try Factory Reset on the phone.
Process finished. Thank you for your support!
Finished successfully.
Finished at local time: [07.28.17 14:44:53]
WorkID: 24339324