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Go Back   GSM-Forum > Product Support Sections > Hard/Software Products (official support) > GSMServer Products > SigmaKey

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Old 09-25-2013, 12:40   #1 (permalink)
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How to unlock zte z431 ?

dear supporter i have download zte driver from support and know trying to UNLOCK Z431 ,,,but could not ,,,anybody can guide me HOW TO UNLOCK ZTE Z431 ?

waiting for kind replies,,,

--- 2013-09-25 16:32:08 ---
SigmaKey 1.29.04 Qcom: Direct unlock
USB Serial Port (COM18), Provider: FTDI, Driver ver.: 2.6.0.0, Date: 10/21/2009, FTDIBUS\COMPORT&VID_0403&PID_6001
Missing response from phone
--- 2013-09-25 16:34:22 ---
SigmaKey 1.29.04 Qcom: Get unlock codes
USB Serial Port (COM18), Provider: FTDI, Driver ver.: 2.6.0.0, Date: 10/21/2009, FTDIBUS\COMPORT&VID_0403&PID_6001
Missing response from phone
--- 2013-09-25 16:37:51 ---
SigmaKey 1.29.04 Qcom: Direct unlock
USB Serial Port (COM18), Provider: FTDI, Driver ver.: 2.6.0.0, Date: 10/21/2009, FTDIBUS\COMPORT&VID_0403&PID_6001
Missing response from phone

waiting for kind replies
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Old 09-25-2013, 12:46   #2 (permalink)
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Use the manual for ZTE Phones.
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Old 09-25-2013, 12:50   #3 (permalink)
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Try this link...

zte z431 & f555 user code failed sigma.
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Old 09-25-2013, 13:32   #4 (permalink)
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@ aminnovelty,

Direct Unlock
  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 "Unlock" tab
  4. Power the phone ON
  5. Connect the phone to PC with USB cable
  6. Install required ZTE handset USB driver (only if the phone is connected for the first time); in some cases drivers can be installed automatically
  7. Select USB Modem port in the ports selection tab
  8. Press "Unlock" button *
  9. The message "Unlocking phone... Done" indicates that procedure was completed successfully
  10. Wait for the message "Restarting phone... Done" to appear in Sigma dialog window; only after that you can turn the phone off
* In case of unknown firmware version detection, the software will suggest unlocking the phone using the heuristic method. Duding the extended heuristic method operation the phone will be restarted, so please wait till the process is completed. In the end of heuristic unlock mode procedure, please send the log file to our support.


** PC connection of the phone has to be set to USB (not Bluetooth)
In phone menu: Settings - Connections - PC connection - USB


Best Regards
GSMServer team



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Old 09-25-2013, 13:37   #5 (permalink)
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Sir i am not looking for USER CODE but looking for NETWORK CODE ,,,still driver issue inspite to install all ZTE drivers which available on support ,,here is screen shoot -:


00.JPG

need for guidence to install proper driver ,,,or just inform me that where do i am mistaking.
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Old 09-25-2013, 13:39   #6 (permalink)
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Quote:
Originally Posted by GSM_Support View Post
@ aminnovelty,

Direct Unlock
  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 "Unlock" tab
  4. Power the phone ON
  5. Connect the phone to PC with USB cable
  6. Install required ZTE handset USB driver (only if the phone is connected for the first time); in some cases drivers can be installed automatically
  7. Select USB Modem port in the ports selection tab
  8. Press "Unlock" button *
  9. The message "Unlocking phone... Done" indicates that procedure was completed successfully
  10. Wait for the message "Restarting phone... Done" to appear in Sigma dialog window; only after that you can turn the phone off
* In case of unknown firmware version detection, the software will suggest unlocking the phone using the heuristic method. Duding the extended heuristic method operation the phone will be restarted, so please wait till the process is completed. In the end of heuristic unlock mode procedure, please send the log file to our support.


** PC connection of the phone has to be set to USB (not Bluetooth)
In phone menu: Settings - Connections - PC connection - USB


Best Regards
GSMServer team




respected sir i have followed all of your instruction ,,,but i think not installing proper driver ,, ,,,if you could kindly give me PROPER DRIVER for ZTE Z431,,,will be realy appreciated ,,,
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Old 09-25-2013, 14:15   #7 (permalink)
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If anybody else knows about any good driver for ZTE Z431,,,plz give me link or upoload here ,,,i will be realy apreciated,,,,

waiting for kind replies,,
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Old 09-25-2013, 14:18   #8 (permalink)
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Install these drivers. This setup of drivers was tested many times.

Video of unlock procedure of the phone from this family.
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Old 09-25-2013, 20:37   #9 (permalink)
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thanks macandre for ur kind reply.let me install that drivers .will let u know abt result....thanks again,,,,,,,, l
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Old 09-26-2013, 07:13   #10 (permalink)
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Quote:
Originally Posted by mcandre View Post
Install these drivers. This setup of drivers was tested many times.

Video of unlock procedure of the phone from this family.

It just my bedluck and nothing else ,,,although i have followed all of ur given instruction as well install ZTE driver ,,,inspite of that its not showing in COM PORT ,,,,it means i am totaly fail to install ZTE driver ,,,,

22.JPG


anydoby know how to clean the drivers ,,,what i think ,,,i just want to clean all of installed drivers ,,and wanna to install from begining ,,,may be this can solve my problem ,,,,

anybody knows how to clean drivers ?
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Old 09-26-2013, 07:19   #11 (permalink)
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@ aminnovelty,

Perform following steps:
  • Power on phone
  • Ensure that PC connection of the phone has to be set to USB
    In phone menu: Settings - Connections - PC connection - USB
  • Connect Powered on phone to another USB port of the PC
  • Install these drivers
  • After that run unlock operation according to this manual

Best Regards
GSMServer team



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Old 09-26-2013, 07:30   #12 (permalink)
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can you tell me about u r window its sp2 are sp3 ?
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Old 09-26-2013, 07:49   #13 (permalink)
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Quote:
Originally Posted by Faheem Anjum View Post
can you tell me about u r window its sp2 are sp3 ?
Faheem bhai its SP3 ,,,,plz tell me where i am mistaking ,,,its realy disapointed for me bhai.
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Old 09-26-2013, 07:51   #14 (permalink)
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Quote:
Originally Posted by GSM_Support View Post
@ aminnovelty,

Perform following steps:
  • Power on phone
  • Ensure that PC connection of the phone has to be set to USB
    In phone menu: Settings - Connections - PC connection - USB
  • Connect Powered on phone to another USB port of the PC
  • Install these drivers
  • After that run unlock operation according to this manual

Best Regards
GSMServer team



Sir i have followed ur given instruction ,,,,all according to that but why my phone is not showing on COM PORT ,,,its realy unable to understand for me,,,
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Old 09-26-2013, 07:57   #15 (permalink)
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After installing drivers diagnostic port should appear. Have you tried using another usb-port?
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