ZTE Orange Zali unlocked by Sigmakey
 

Direct unlock:
put your ZTE in FTM mode("vol-" + "pwr on") and press direct unlock

You had luck; newest firmware don't work like is for Orange Romania!

According my observations, the situation is as follow:

• ORANGE_MD_P752D20V1.0.0B01 - unlockable
• ORO_RO_P752D20V1.0.0B02 -unsupported version
• SK_SK_P752D20V1.0.0B08 - -not tested version
• OSP_ES_P752D20V1.0.0B11 - unlockable
• Spain Orange OSP_ES_P752D20V1.0.0B15 - unlockable

In the theory, if you phone has unsupported firmware version 0B02, you may re-flash the device with on of these versions and unlock it afterwards:

• 0B08
• 0B11
• 0B15

For NEW version of firmware .... VOLUME + / - insert usb

Yes, you are right. Now all versions are supported with this combination.

vol+/vol- insert usb,select port and direct unlock

SigmaKey 2.03.03 Qcom: Get unlock codes
ZTE Handset Diagnostic Interface(DFU) (COM137), Provider: ZTE Corporation, Driver ver.: 1.2066.1.3, Date: 29.04.2010, USB\Vid_19d2&Pid_0112&Rev_0233
Version: ORO_RO_P752D20V1.0.0B03, 20130920130916
Firmware: 76XXU-USNSKOLYM-2540
Date: Sep 16 2013 16:21:43, Jun 19 2013 03:00:00, USNSKOLY
IMEI: 358046030854237
Bluetooth address: 795D09B6E878
Unknown firmware version. Do you want to try heuristic method (it may take several minutes)? [NO]
Cancelled
--- 2014-07-17 14:10:11 ---
SigmaKey 2.03.03 Qcom: Direct unlock
ZTE Handset Diagnostic Interface(DFU) (COM137), Provider: ZTE Corporation, Driver ver.: 1.2066.1.3, Date: 29.04.2010, USB\Vid_19d2&Pid_0112&Rev_0000
Version: 76XXU-2540-USNSKOLYM
Detecting flash...eMMC, Flash size: 3.63 Gb
IMEI: 358046030854237
Security area saved to "C:\Documents and Settings\Robert\My Documents\SigmaKey\security backup\358046030854237_76XXU-2540-USNSKOLYM.skb"
Unlocking phone...Done
Restarting phone...Done

--------- 2017-01-21 09:26:36 ---------
SigmaKey 2.22.01 Qcom: Direct unlock
Handset Diagnostic Interface(DFU) (COM118), Provider: HS Incorporated, Driver ver.: 10.2066.1.5, Date: 3/28/2011, USB\VID_19D2&PID_0112&REV_0000
Version: 76XXU-2540-USNSKOLYM
Detecting flash...eMMC, Flash size: 3.63 Gb
IMEI: 358046031553879
Security area saved to "C:\Users\RiSKO\Documents\SigmaKey\security backup\358046031553879_76XXU-2540-USNSKOLYM.skb"
Unlocking phone...Done
Restarting phone...Done

SigmaKey v.2.23.04
132883706 Sigma dongle 2.23, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Activated
--------- 2017-03-16 19:00:15 ---------
SigmaKey 2.23.04 Qcom: Direct unlock
ZTE Handset Diagnostic Interface(DFU) (COM20), Provider: ZTE Corporation, Driver ver.: 5.2066.1.6, Date: 9/8/2010, USB\VID_19D2&PID_0112&REV_0000
Version: 76XXU-2540-USNSKOLYM
Detecting flash...eMMC, Flash size: 3.63 Gb
IMEI: 358046031315485
Security area saved to "C:\Users\raaz\Documents\SigmaKey\security backup\35031315485_76XXU-2540-USNSKOLYM.skb"
Unlocking phone...Done
Restarting phone...Done

ORO_RO model

1. Open Sigma, go to the Qualcomm tab.
2. Phone off, hold vol- and vol+ at the same time and connect to PC via USB cable.
3. Select the new ZTE serial port, then press "Direct unlock".
4. Wait until it says "Restarting phone...Done".
5. After inserting a (not Orange) SIM card, wait a few minutes, it might take a while to retrieve the network.
6. Done.

--------- 2020-01-17 09:35:40 ---------
SigmaKey 2.34.04b2 Qcom: Direct unlock
ZTE Handset Diagnostic Interface(DFU) (COM283), Provider: ZTE Corporation, Driver ver.: 5.2104.1.2, Date: 3/17/2014, USB\VID_19D2&PID_0112&REV_0000
Version: 76XXU-2540-USNSKOLYM
Detecting flash...eMMC, Flash size: 3.63 Gb
IMEI: 358046031267017
Security area saved to "C:\Users\user\Documents\SigmaKey\security backup\0874799434\358046031267017_76XXU-2540-USNSKOLYM.skb"
Unlocking phone...Done
Restarting phone...Done