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Downgrade firmware LX1AC432

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Senior Member
Mar 13, 2017
I upgraded to B193 through Firmware Finder and now my battery life seems have become worse then when I was on B187. Is there anyway I can downgrade to B187 again or even B131? Also do official OTA updates become disabled if you use Firmware Finder?

My device is the LX1AC432 4GB RAM model