How to Unlock SPEC-B Bootloader LUMIA Devices

#lumia #windowsphone

Welcome to the SPEC-B Bootloader Unlock guide from the W10M Group!

Documented Guide;
W10M version: https://w10mgroup.github.io/?sid=mF4i...
WP8.1 version: https://w10mgroup.github.io/?sid=DA4j...

| Disclaimer
We are not responsible for any damage to your device, do it at your own risk!

Support us:   / w10mgroup  

Downloads
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Windows Device Recovery Tool: https://go.microsoft.com/fwlink/p/?Li...
Windows Phone Internals: https://github.com/ReneLergner/WPinte...

Alternate sources
Lumiafirmware: https://www.lumiafirmware.com/
W.U.T Bootloader Unlock resources: https://w10mgroup.github.io/?sid=3YpS...

Chapters
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00:00 - Guide intro
00:06 - Group intro
00:13 - Introduction
00:17 - What is bootloader unlock?
00:40 - Benefits of bootloader unlock & usefulness
01:07 - Compatible OS versions
01:20 - Compatible devices (SPEC-B Lumia list)
01:35 - Un-supported device
01:52 - Preparations
01:56 - Download & install WDRT
02:20 - Download WPI
02:38 - Downloading required files
02:42 - What are the required files?
03:01 - Downloading device FFU & Emergency files
04:02 - What is Donor FFU & why is it required?
04:32 - Donor FFU technical details
04:30 - Downloading Donor FFU
05:30 - Alternate sources to download required files
05:45 - Unlock SPEC-B Bootloader
05:50 - Pre-notes (MANDATORY)
06:07 - Disclaimer
06:15 Complete Bootloader Unlock process
10:51 - Post-notes (MANDATORY)
11:02 - Enable Root access (Optional)
11:06 - What is Root, Compatible OS versions?
11:42 - How to enable Root access
13:05 - How to disable Root access (If needed)
13:16 - REVERT: Re-lock Bootloader
14:44 - Common Errors & Solutions
15:04 - FAQ
15:14 - End screen

Notes
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• The guide is only for SPEC-B Bootloader LUMIA Devices.
• The guide is full of important notes, make sure to pay attention to every one of them to ensure safety of your device.

Credits
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✓ ReneLergner, Gustave Monce & all the other contributors of WPI


Music credits
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Music from https://freetousemusic.com
‘Crashing Tides’ by ‘shandr'
   • 😎 Fresh Chill Guitar Beat No Copyrigh...  

Music from https://freetousemusic.com
‘Summer Bliss’ by ‘Ocean Bloom'
   • 🏖 Joyful Play No Copyright Free Tropi...