How to unlock Motorola Atrix bootloader got from Expansys (4.4.35.MB860.Retail.en.GB)

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While rooting the device has been harder than I thought, bootloader unlock has been very simple to be achieved.
I verified by myself the method described on XDA – [PUDDING] International House of Pudding! BL Unlock/root thread and works fine for our rooted Motorola 4.4.35.MB860.Retail.en.GB.

Some important notes:

  • Our smartphone needs the file labeled Orange/Bell/Telestra/Latin America/International users ONLY – Download IHOP, NOT the other one
  • If you are a windows user, just follow the thread
  • If you are a GNU/Linux / Mac OS X user, use sbf_flash instead of RSDLite
  • It was not easy for me to find out that to flash SBF we must power off the phone, power it on while holding the VOL DOWN button, press the VOL DOWN button up to we see the “RSD” text, and press VOL UP to select it. Then we can safely flash it.
  • Please install custom ROMS. don’t install Motorola Gingerbread update when it comes out in Europe, they will block the bootloader again and you will probably brick the device

Remember that unlocking the bootloader will void your warranty. Happy hacking.

About the author

dgraziotin

Dr. Daniel Graziotin is a senior researcher (Akademischer Rat) at the University of Stuttgart, Germany. His research interests include human, behavioral, and psychological aspects of empirical software engineering, studies of science, and open science. He is associate editor at the Journal of Open Research Software and academic editor at the Research Ideas and Outcomes (RIO) journal. Daniel was awarded an Alexander von Humboldt Fellowship for postdoctoral researchers in 2017, the European Design Award (bronze) in 2016, and the Data Journalism Award in 2015. He received his Ph.D. in computer science at the Free University of Bozen-Bolzano, Italy.

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About Author

dgraziotin

Dr. Daniel Graziotin is a senior researcher (Akademischer Rat) at the University of Stuttgart, Germany. His research interests include human, behavioral, and psychological aspects of empirical software engineering, studies of science, and open science. He is associate editor at the Journal of Open Research Software and academic editor at the Research Ideas and Outcomes (RIO) journal. Daniel was awarded an Alexander von Humboldt Fellowship for postdoctoral researchers in 2017, the European Design Award (bronze) in 2016, and the Data Journalism Award in 2015. He received his Ph.D. in computer science at the Free University of Bozen-Bolzano, Italy.