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. 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
  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

 

Qualcomm: Huawei Android Smartphones

Manufacture Mode

Unlock

Enable Manufacture Mode

  • Open the hidden device menu: dial "*#*#2846579#*#*"
  • Select "Project Menu" -> "Background Settings" -> "USB Ports Settings" -> "Manufacture Mode"

Unlock

  1. Internet connection has to be enabled, proxy disabled. Root is not required
  2. Select "Qualcomm" platform from the tab menu in the upper left side of the software
  3. "Phone model" dropdown box has to be set to "Autodetect"
  4. Go to "Unlock" tab
  5. Connect your device to PC with USB cable
  6. Install required Huawei smartphone driver (only if the phone is connected for the first time)
  7. Select "DBAdapter Reserved Interface" port
  8. Press "Direct Unlock" button
FRP Remove
  • Select "Qualcomm" 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...Done" 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.

FRP Remove using Testpoint
  • Testpoints gallery: boot-loader.com -> Downloads -> Sigma Free Section -> Testpoints
  • Drivers for device Qualcomm HS-USB QDLoader 9008

Procedure:

  1. Select "Qualcomm" platform from the tab menu in the upper left side of the software
  2. Go to "Service" tab
  3. Select virtual port “Plug the USB cable into the powered off phone…”
  4. Select from drop-down list the required Huawei phone model
  5. Press "Remove FRP" button
  6. Connect the phone to PC in the factory mode using testpoint. The phone has to be visible as Qualcomm HS-USB QDLoader 9008 in the system.
  7. The message "Removing FRP… Done" indicates that procedure has been completed successfully
  8. Disconnect the handset from PC
Repair IMEI

Enable Manufacture Mode

  • Open the hidden device menu: dial "*#*#2846579#*#*"
  • Select "Project Menu" -> "Background Settings" -> "USB Ports Settings" -> "Manufacture Mode"

Repair IMEI

  1. Internet connection has to be enabled, proxy disabled. Root is not required
  2. Select "Qualcomm" platform from the tab menu in the upper left side of the software
  3. "Phone model" dropdown box has to be set to "Autodetect"
  4. Go to "IMEI" tab
  5. Connect your device to PC with USB cable
  6. Install required Huawei smartphone driver (only if the phone is connected for the first time)
  7. Select "DBAdapter Reserved Interface" port
  8. Enter IMEI number in the "Phone IMEI" field
  9. Press "Repair IMEI" button
  10. The message "Done" indicates that the procedure has been completed successfully
Get Huawei bootloader unlocking password
  1. Select "Qualcomm" platform from the tab menu in the upper left side of the software
  2. "Phone model" dropdown box has to be set to "Autodetect"
  3. Go to "Service" tab
  4. Set the phone to manufacture mode
  5. Connect your device to PC with USB cable
  6. Install required drivers
  7. Select DBAdapter Reserved Interface in the ports selection tab
  8. Press "Get Huawei bootloader password" button
  9. Password which was read will be shown in the log window
Huawei ID remove

Enable Manufacture Mode

  • Open the hidden device menu: dial "*#*#2846579#*#*"
  • Select "Project Menu" -> "Background Settings" -> "USB Ports Settings" -> "Manufacture Mode"

Procedure

  1. Internet connection has to be enabled, proxy disabled. Root is not required
  2. Select "Qualcomm" platform from the tab menu in the upper left side of the software
  3. "Phone model" dropdown box has to be set to "Autodetect"
  4. Go to "Service" tab
  5. Power the phone ON and connect it to PC with USB cable
  6. Install required Huawei smartphone driver (only if the phone is connected for the first time)
  7. Select "DBAdapter Reserved Interface" port
  8. Press "FRP remove / Huawei ID" button
Repair of Wi-Fi, Bluetooth and Serial Numbers

Enable Manufacture Mode

  • Open hidden device menu: dial "*#*#2846579#*#*"
  • Select "Project Menu" -> "Background Settings" -> "USB Ports Settings" -> "Manufacture Mode"

Procedure

  1. Internet connection has to be enabled, proxy disabled. Root is not required
  2. Select "Qualcomm" platform from the tab menu in the upper left side of the software
  3. "Phone model" dropdown box has to be set to "Autodetect"
  4. Go to "IMEI" tab and tick “Huawei”
  5. Connect your device to PC with USB cable
  6. Install required Huawei smartphone driver (only if the phone is connected for the first time)
  7. Select "DBAdapter Reserved Interface" port
  8. Enter Wi-Fi, Bluetooth or Serial number in the required fields
  9. Press "Repair" button
  10. Message "Done" indicates that the procedure has been completed successfully

Flash

FLASH via fastboot mode (only for reviving of bricked devices)

This feature is intended to be used for phones that won’t turn on, freeze on logo, etc., but still can enter fastboot mode. It's not intended for regular reflashing.

Procedure:

  1. Connect the phone in fastboot mode (vol- power ON) to PC
  2. Select corresponding update.app firmware file and revive the device with Sigma
  3. When the phone starts up normally, reflash it in UPGRADE mode using the corresponding to it flash file

Benefits:

  • Full/partial write of firmware partitions
  • FAST direct firmware write via fastboot mode
  • Flash of regular update.app files to devices with locked bootloader
  • Possible to use original flash files from open sources, e.g. from here or here
UPGRADE MODE flashing
  1. SD-card should be removed from the phone
  2. Press vol+vol- and connect USB cable to enter the Upgrade mode
  3. Open Qualcomm tab and go to Flash bookmark
  4. Select PCUI or DBA adapter port (different phone models show different ports) in the port selection tab
  5. Select required update.app flash file and press “write flash”

Important: all partitions of the firmware will be written to the phone in Upgrade mode.

New smartphone models have two flash files: main flash file and localization file. These two files should be flashed together.

Change Provider (Vendor/Country)

This feature can be used to adjust phone settings correctly after the device has been flashed with another service provider firmware version. This feature can be found in Qualcomm tab - IMEI Bookmark.

  1. Tick “+Huawei”
  2. Fill in the fields "Vendor" and "Country" with the correct data
  3. Press "Repair" button

IMPORTANT: Reflash the phone after changing provider settings!

ENABLE DOWNGRADE
  1. Power the phone ON
  2. Set the phone to manufacture mode
  3. Open HiSilicon tab and go to Flash bookmark
  4. Select "Android Adapter PCUI" port
  5. Press “ENABLE DOWNGRADE” button
  6. You need to reflash the phone after using this feature

You may use it:

  1. To downgrade phone’s firmware version (for example, downgrade from higher to lower one).
    How to do this:
    • Enable downgrade in Manufacture mode.
    • Reflash the device in upgrade mode: vol+vol- and connect USB cable.
  2. To change phone’s localization (for example, to switch from Operator1 to Operator2).
    How to do this:
    • Change provider settings (in manufacture mode).
    • Enable downgrade (in manufacture mode).
    • Flash the phone with the firmware that fits the selected provider settings (using upgrade mode: vol+vol- and connect USB cable).

FACTORY MODE: phones detected as "Qualcomm HS-USB QDLoader 9008"

Repair bricked Qcom-based Huawei device using board software

Use this guide only for cases, when phone is bricked and doesn’t show any devices while connected to PC, or shows Qualcomm HS-USB QDLoader 9008.
In some cases Testpoint has to be used to force the device to this mode.

Important notes:

Procedure:

  1. Repair bricked device using board software file taken from boot-loader.com:
    1. Select "Qualcomm" platform from the tab menu in the upper left side of the software
    2. Go to "Flash" tab
    3. "Phone model" dropdown box has to be set to "Huawei Android (Diag.)"
    4. Select “Plug the USB cable into the powered off phone…” in the ports selection tab
    5. Select Board Software file (*.skf format) taken from boot-loader flash file area
      • After choosing the file you may manually select partitions to write
        Warning: when selecting all partitions (including factory calibrations areas) keep in mind, that after flashing these areas, phone’s network and other functions may become unavailable!
    6. Press “Write firmware” button
    7. Connect the phone to PC with the USB cable. If you experience any difficulties while connecting, reinsert the battery and repeat the operation
    8. Wait for the operation to finish
  2. Reflash the phone using original update.app file in FASTBOOT mode (press vol- and insert USB cable)
  3. Repair Vendor/Country, IMEI and other numbers
  4. Reflash the phone now in UPGRADE MODE using original update.app file (press vol+vol- and insert USB cable)

For more detailed information check our video manual.

Unlock (ADB Mode)

Enable USB Debugging and Root
  • Remove SIM card and then power the phone ON.
  • Enable USB debugging on your device:
    • Android 2.0-2.3.x: Settings > Applications > Development > USB Debugging
    • Android 3.0- 4.1.x: Settings > Developer Options > USB Debugging.
    • Android 4.2.x and higher: Settings > About Phone > Build number > Tap on "Build number" 7 times to enable developer options. Then Go to Settings>Developer Options>USB Debugging.
    • Android 5.0: the same as Android 4.2.x.
  • Install ADB drivers (only if the phone is connected for the first time).
    • You may use this ADB driver installer if you don't have ADB driver for your phone.
  • Root the smartphone, as it has to be rooted in order to be unlocked! Here are some of the solutions for rooting:
  • Restart the smartphone after rooting has been completed.
Direct unlock via ADB mode (phone in turned on state)

It's mandatory to root device before unlock!

  1. Turn the rooted phone ON and wait until it fully starts up
  2. Connect the phone to PC using USB cable
  3. Select "Android ADB" platform from the tab menu in the upper left side of the software
  4. "Phone model" drop-down box has to be set to "Auto-detect"
  5. Go to "Unlock" tab
  6. Select "Adb interface" in the ports selection tab
  7. Press "Unlock" button
  8. The message "Unlock done… OK" indicates that procedure was completed successfully
  9. Disconnect the handset
  10. Phone is unlocked
Direct unlock for S7-301u, S7-302u, S7-303u, S7-312u and S7-721u

It is mandatory to root the device before unlock procedure!

Unlock operation goes in two stages: unlock and then re-flash (if the device remains locked only!)

  • Unlock:
    1. Turn the rooted tablet ON and wait until it completely boots up
    2. Connect the device to PC using USB cable
    3. Select "Android ADB" platform from the tab menu in the upper left side of the software
    4. "Phone model" drop-down box has to be set to "Auto-detect"
    5. Switch to "Unlock" tab
    6. Select "Adb interface" in the ports selection tab
    7. Press "Unlock" button
    8. The message "Unlock done… OK" indicates that procedure was completed successfully
    9. Disconnect the tablet from PC
    10. If device remains locked, please re-flash the original firmware

  • Write flash:

    Please use the same or higher version of firmware!

    1. Copy "dload" folder to SD card root directory
    2. Make sure that the tablet is powered off
    3. Insert SD card into the tablet
    4. Press and hold the volume+ key and Power key simultaneously for 2 seconds to boot
    5. After upgrade is over, remove SD card or press POWER key until tablet restarts

After flashing the tablet is supposed to be unlocked

Unlock SIM BLOCK

If you have SP-locked phone, which you tried to unlock with codes, but multiple times you've entered an incorrect code, you see a new request on your phone screen: Unlock SIM BLOCK". In order to bypass this code you need to Reset Wrong Code Counter. For this purpose, please, perform “Direct unlock” or “IMEI Repair” procedure.

Work with Bootloader (ADB Mode)

Unlock Huawei Bootloader

It's mandatory to root device before unlock!

Unlocking of bootloader:

  1. Select "Android ADB" platform from the tab menu in the upper left side of the software
  2. Go to "Qualcomm" tab
  3. Power the phone ON and wait until it starts completely
  4. Make sure that USB debugging is enabled on your device
  5. Connect your device to PC with USB cable
  6. Install required Huawei ADB driver (only if the phone is connected for the first time)
  7. Select ADB Android Interface in the ports selection tab
  8. Press "Unlock Huawei bootloader" button
  9. The message "Done" indicates that procedure was completed successfully
  10. Disconnect the handset, remove and insert the battery
Get Huawei Bootloader Password

It's mandatory to root device before unlock!

Getting the password:

  1. Select "Android ADB" platform from the tab menu in the upper left side of the software
  2. Go to "Qualcomm" tab
  3. Power the phone ON and wait until it starts completely
  4. Make sure that USB debugging is enabled on your device
  5. Connect your device to PC with USB cable
  6. Install required Huawei ADB driver (only if the phone is connected for the first time)
  7. Select ADB Android Interface in the ports selection tab
  8. Press "Get Huawei bootloader password" button
  9. Read password will be shown in the log window

Also you can get bootloader password at the official Huawei website here and here.

Video Instructions

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