Reminder! Before servicing the phone, please make sure that:

  1. You use the latest version of Sigma software
  2. Battery charged more than 50%
  3. All the side programs, that may interfere with the phone, are closed
  4. Phone’s cable and device itself should not be disconnected or disturbed until the procedure is fully completed
  5. Phone's connection:
    • Via USB: connect phone to USB port placed on the backside of PC (motherboard's USB port)
      Do not connect or disconnect other USB cables into the PC during the actual work with the phone
    • Via COM: use recommended Prolific / FTDI drivers only
  6. Avoid using any kind of USB HUBs and long USB cables. Use the shortest-length USB cable available.
  7. Phone has stock (factory) firmware version
  8. SIM card is removed

 

Android Smartphones based on MT65XX / MT8XXX

Yoda Method via ADB mode (Strongly Recommended!)

  1. Enable USB debugging on the phone.
  2. Root the smartphone.
  3. Select "ADB Android" platform from the tab menu in the upper left side of the software.
  4. Select "Adb interface" in the ports selection tab.
  5. Perform Direct Unlock / Repair IMEI / other service operations.

PRESS HERE TO SEE FULL STEP-BY-STEP MANUAL

SPFT Method

Remove FRP for Alcatel, Moto and Huawei devices:

Download special files:

  • Download special MTK addons from boot-loader.com (Sigma free section) and put them into My Documents\SigmaKey\addons\<your Sigma card number> folder.
    Alternative: Install SigmaKeyAddons_All_In_One.exe (it contains all additional files required for Sigma, packed in one installer).

Settings:

  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "Service" tab
  3. Select "USB (autodetect)" in the serial ports selection tab
  4. Select your phone model in the "MTK boot" drop-down menu
  5. Press "Remove FRP" button

Phone`s connecting and servicing:

  1. Connect turned off phone to PC with USB cable
    (If phone enters charging mode, just reinsert the battery and restart the operation)
  2. Install drivers for all devices that will appear in the system
  3. Message "Done" indicates that procedure was completed successfully
  4. Disconnect the handset. Remove and reinstall the battery
  5. Post the successful log on the official Sigma forum
Remove FRP for non-secure MTK smartphones:

Settings:

  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "Service" tab
  3. Select "USB (autodetect)" in the serial ports selection tab
  4. Select "Smartphone" in the "MTK boot" drop-down menu
  5. Press "Remove FRP" button

Phone`s connecting and servicing:

  1. Connect turned off phone to PC with USB cable
    (If phone enters charging mode, just reinsert the battery and restart the operation)
  2. Install drivers for all devices that will appear in the system
  3. Message "Done" indicates that procedure was completed successfully
  4. Disconnect the handset. Remove and reinstall the battery

Other actions:

  • Post the successful log on the official Sigma forum.
  • Attach the file that Sigma Software created while servicing!
Remove FRP for unknown MTK devices using own Download agent

Settings:

  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "Service" tab
  3. Select "USB (autodetect)" in the serial ports selection tab
  4. Select "Download Agent?" in the "MTK boot" drop-down menu
  5. Press "Remove FRP" button
  6. IMPORTANT: Select your own download agent in (*.bin format)

Phone`s connecting and servicing:

  1. Connect turned off phone to PC with USB cable
    (If phone enters charging mode, just reinsert the battery and restart the operation)
  2. Install drivers for all devices that will appear in the system
  3. Message "Done" indicates that procedure was completed successfully
  4. Disconnect the handset. Remove and reinstall the battery

Other actions:

  • Post the successful log on the official Sigma forum.
  • Attach the file that Sigma Software created while servicing!
Repair IMEI for Huawei DRA/DUA devices:

Download special files:

  • Download special MTK addon from boot-loader.com (Sigma free section) and put it into My Documents\SigmaKey\addons\< your Sigma card number > folder.

Settings:

  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "IMEI" tab
  3. Select "USB (autodetect)" in the serial ports selection tab
  4. Select your phone model in the "MTK boot" drop-down menu
  5. Enter IMEI number in the "Phone IMEI" field
  6. Press "IMEI REPAIR" button

Phone`s connecting and servicing:

  1. Hold both Vol- and Vol+, then plug the USB cable into the powered off phone...
  2. Install drivers for all devices that will appear in the system
  3. Message "Done" indicates that procedure was completed successfully
  4. Disconnect the handset.
Direct Unlock for Huawei Y5 2018 DRA/DUA and Alcatel devices:

Download special files:

  • Download special MTK addon from boot-loader.com (Sigma free section) and put it into My Documents\SigmaKey\addons\< your Sigma card number > folder.
  • Huawei DRA
    Huawei DUA

Settings:

  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "Unlock" tab
  3. Select "USB (autodetect)" in the serial ports selection tab
  4. Select your phone model in the "MTK boot" drop-down menu
  5. Press "Unlock" button

Phone`s connecting and servicing:

  1. Hold both Vol- and Vol+, then plug the USB cable into the powered off phone...
  2. Install drivers for all devices that will appear in the system
  3. Message "Done" indicates that procedure was completed successfully
  4. Disconnect the handset.
Video instructions

Generic Method

Unlock

Get Unlock Codes
Direct Unlock
  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "Unlock" tab
  3. Turn the phone off
  4. Connect turned off phone to PC with USB cable
  5. Install drivers for all devices that will appear in the system; reconnect the smartphone
  6. Important: use drivers from Sigma Support Area only!
  7. Select Android Gadget VCOM in the ports selection tab
  8. Press "Direct Unlock" button
  9. Message "Unlocking phone... Done" indicates that procedure was completed successfully
  10. Disconnect the handset. Remove and reinstall the battery

For Huawei Y220: uncheck "Switch smartphone to extended META mode" box in "Options" tab.

Direct Unlock for ZTE Blade Q / Blade Q Mini / Blade Q Maxi / Orange Reyo
  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "Unlock" tab
  3. Turn the phone off
  4. Connect turned off phone to PC with USB cable
  5. Install drivers for all devices that will appear in the system; reconnect the smartphone
  6. Important: use drivers from Sigma Support Area only!
  7. Select MTK Preloader* in the ports selection tab
  8. Press "Direct Unlock" button
  9. Message "Unlocking phone... Done" indicates that procedure was completed successfully
  10. Disconnect the handset. Remove and reinstall the battery

* in case "Direct Unlock" or other button is inactive, please choose "MTK Preloader" from the ports selection tab again.

Direct Unlock for 5049W / 5049Z / REVVL / A30 Fierce

Important: in order to perform servicing of these models, you need to download special addon files from Sigma Free section (Alcatel folder) from Boot-Loader.com, and put it into My Documents\SigmaKey\addons\your sigma number folder.

  1. Select "MTK" platform from the tab menu in the upper left side of the Sigma software
  2. Go to "Unlock" tab
  3. Turn the phone ON and check your phone’s build number:
    • Open menu Settings -> About -> Build Number
  4. Turn the phone OFF
  5. Select required addon file (in *.skf format) that matches your phone’s build number. If there is no match, try the file that matches the specific model
  6. Connect turned off phone to PC with USB cable
  7. Select ADB interface (fastboot) in the ports selection tab
  8. Press "Direct Unlock" button
  9. Message "Unlocking phone... Done" indicates that procedure was completed successfully
  10. Disconnect the device
Get Huawei bootloader code
  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "Service" tab
  3. Turn the phone off
  4. Connect turned off phone to PC with USB cable
  5. Install drivers for all devices that will appear in the system; reconnect the smartphone
  6. Important: use drivers from Sigma Support Area only!
  7. Select Android Gadget VCOM in the port selection tab
  8. Press "Get Huawei bootloader code" button
  9. Message "Done" indicates that procedure was completed successfully
  10. Disconnect the handset. Remove and reinstall the battery
Video instructions

Repair

Repair IMEI

This Repair IMEI feature is applicable only for devices with IMEI located in the file system (Software IMEI).

  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "IMEI" tab
  3. Turn the phone off
  4. Connect turned off phone to PC with USB cable
  5. Install drivers for all devices that will appear in the system; reconnect the smartphone
  6. Important: use drivers from Sigma Support Area only!
  7. Select Android Gadget VCOM in the ports selection tab
  8. Enter IMEI number in the "Phone IMEI" field
  9. Press "IMEI Repair" button
  10. Message "Done" indicates that procedure was completed successfully
  11. Disconnect the handset. Remove and reinstall the battery

For Huawei Y220: uncheck "Switch smartphone to extended META mode" box in "Options" tab.

Repair IMEI for ZTE Blade Q / Blade Q Mini / Blade Q Maxi / Orange Reyo
  1. Select "MTK" platform from the tab menu in the upper left side of the software
  2. Go to "IMEI" tab
  3. Turn the phone off
  4. Connect turned off phone to PC with USB cable
  5. Install drivers for all devices that will appear in the system; reconnect the smartphone
  6. Important: use drivers from Sigma Support Area only!
  7. Select MTK Preloader* in the ports selection tab
  8. Enter IMEI number in the "Phone IMEI" field
  9. Press "IMEI Repair" button
  10. Message "Done" indicates that procedure was completed successfully
  11. Disconnect the handset. Remove and reinstall the battery

* in case "IMEI Repair" or other button is inactive, please choose "MTK Preloader" from the ports selection tab again.

Service

FRP Remove for Huawei smartphones
  • Select "MTK" platform from the tab menu in the upper left side of the software
  • Go to "Service" tab
  • Turn the phone OFF
  • Set the phone to FastBoot mode:
    • press and hold “VOL-“ button and connect the phone to PC, using USB cable (or use any other method)
  • Select “Android ADB interface” port
  • Press “Remove FRP” button
  • The message "Removing FRP lock...OK" indicates that procedure has been completed successfully
  • Disconnect the device

Warning: This feature will erase all phone’s data and accounts

If after FRP removal user data was not wiped automatically, perform this procedure manually in the recovery mode.

Video instructions