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I am running 4.5.91 currently on a rooted and unlocked Atrix.

Will I brick my phone by updating to 4.5.141 from OTA source?

Can I re-lock the boot-loader if that is the issue?

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up vote 1 down vote accepted

I don't think it's possible to re-lock the bootloader of a Atrix 4G. You should read this too

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I found out as much. Ended up flashing an AOSP ROM (nottatch or something) and it's wonderful. It was built off of 4.5.141 so problem solved. – Enigma Apr 4 '13 at 14:07
oh ok good to hear :) – Karan Raj Baruah Apr 5 '13 at 9:43

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