Originally Posted by hoangnova
I use mako unlock method
Is that necessary? Because I don't think anyone will be able to help you in this case. But maybe you could try classic method and see If it works. It might since in classic method it is still Optimus G bootloader.
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Device: LG Optimus G E975 (International)
Rom: Epsilon Project v3
Device: HTC ChaCha A810E
Rom: Stock 2.3.5