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.

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
Change Provider (Vendor/Country)

This feature can be used to adjust phone settings correctly after the device has been flashed with another firmware service provider version. The feature can be found in Qualcomm tab - Service Bookmark.
Select provider ID from the list and press "Save settings".

IMPORTANT: Reflash the phone after changing provider settings!

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

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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