[Huawei Ascend XT Questions & Answers] powerserge1:
No problem and I see why you would be confused. Reboot bootloader is done from the phone since you are in TWRP at this step, look for the option in TWRP. You can reboot to bootloader from there

---------- Post added at 04:14 AM ---------- Previous post was at 03:25 AM ----------

Follow each step to install TWRP and root. I will not be responsible if you brick your device. If you follow each step you will have TWRP and root installed on your AT&T Ascend XT H1611

Updated instructions, let me know if anything needs clarifying or needs cleaning up

Step 1: Save all your data before continuing and back up your pics and files to your PC (unlocking the bootloader will wipe everything)

Step 2: Install adb, fastboot and usb drivers to unlock bootloader as per the instructions below (also make sure to have usb debugging turned on from developer options in the phones settings or adb won't work, here is a video on how to enable it since the usb debugging instructions are not included in the link below: https://www.youtube.com/watch?v=6ikbcfZfmRA):

Update FEB 27, 2017: when going to the link in the rootmygalaxy guide below that brings you to the Huawei unlock portal use a different browser than chrome since it keeps redirecting you to the EMUI 5.0 page. Use edge or another browser, once logged in it will bring you to the unlock page. If not and it redirects you to the EMUI 5.0 page click on "download" at the top of the page then on the next page below the search bar click on the "unlock bootloader" link which will bring you to the unlock portal. Again not working with chrome, use a different browser

http://rootmygalaxy.net/unlock-bootloader-on-huawei-devices/

By the time you are done Step 2 you should have your bootloader unlocked. **Do not continue any further if you do not**

Step 3: Download the latest TWRP.img file from here:

https://drive.google.com/file/d/0B6BmerE0MoCOdlU4RHRYT1pmeUE/view

The img must be placed in the same folder you have adb and fastboot so put it there and remember where you put it on your PC.

Step 4: Put the SuperSU zip from https://download.chainfire.eu/1019/S...0103215521.zip on your microSD card and remember where you put it.

Step 5: From windows command line with phone on and USB debugging enabled type (all adb commands below are in bold):

a) adb devices (to make sure you device is recognized)

b) adb shell reboot bootloader

Step 6: Confirm phone goes to FASTBOOT & RESCUE mode.

a) fastboot devices (to make sure you device is recognized)

b) fastboot boot TWRP.img (boots TWRP.img from Step 3)

c) Phone will boot into TWRP. Always select Keep Read Only from first screen every time you go into TWRP.

Peek around a bit if you want to, then use TWRP to backup your stock recovery to external micro SD.

d) Reboot bootloader from inside TWRP to flash this custom recovery image (no adb command this time, you are rebooting to bootloader from TWRP, you will see this option under "reboot" in TWRP).

e) fastboot flash recovery TWRP.img (now flashes TWRP recovery to the phone)

Step 7: After phone reboots, get into TWRP recovery repeating Step 6, a and b or hold power button and volume up button from power off state, then release when you see Huawei logo.

Step 8: From TWRP:

a) Once again, always select Keep Read Only from first screen every time you go into TWRP!

b) Press Settings to adjust display brightness and vibrations settings, then press home button.

c) Wipe - Format Data (Warning: You are about to blow away your files on internal storage - which you should have backed up by now. Read the red text and confirm by typing yes and blue check mark button.

d) Home - Backup - Select all six partitions, then Select Storage - Micro SDCard (very important), OK, then Swipe to Backup. When the backup is finished, Home - Advanced, File Manager, /external_sd/TWRP/BACKUPS/........ and make sure your backup files exist for each of the six partitions.

e) Home - Install then Select Storage - Micro SDCard, find your SuperSU.zip, and flash it. Swipe to confirm Flash. Be patient, as it takes a few minutes.

f) After flashing SuperSU, Wipe Dalvik and Cache, then reboot. Be patient, as it takes a few minutes. My phone rebooted several times. You should have root after your phone boots up and you set it back up!

Step 9: Be sure to make another TWRP backup of System, Data, and Boot after you get root and phone is set up again!

All credit goes to enigma2446, strtrcr_87, yuweng and divineBliss. Hopefully I cleaned the instructions up one step further since there has been a lot of questions and confusion.