ZTE V768 unlock Done With Sigma-Box - GSM-Forum

[email protected] · 06-01-2013, 07:49

hold volume down and power button
insert usb
Manually select Broadcom Baseband processor type (BCM2155x for V768)
click direct Unlock.

rajeshchiyyan · 07-24-2013, 15:51

Good bro thanks for the report

motorhead_dan · 11-19-2013, 04:26

nice referrence brod....thank

T Mobile · 12-08-2013, 04:41

you are wrong. Vol up + power then insert usb cable.

Cingrular · 12-08-2013, 05:33

Unlock ok with win XP
HOLD Vol down then insert usb cable without Battery.

SigmaKey 1.31.05 Brcm2155x: Direct unlock
Broadcom USB to Serial (COM15), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/27/2011, USB\Vid_0a5c&Pid_2132&Rev_0204
Software IMEI: 865074010800935
Detecting flash...512 Mb, page size: 2048
Security area saved to "C:\Documents and Settings\Hana Doan\My Documents\SigmaKey\security backup\865074010800935Brcm.skb"
Unlocking phone...Done
--- 2013-12-08 11:29:10 ---
SigmaKey 1.31.05 Brcm2155x: Direct unlock
Broadcom USB to Serial (COM15), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/27/2011, USB\Vid_0a5c&Pid_2132&Rev_0204
Software IMEI: 865074010652963
Detecting flash...512 Mb, page size: 2048
Security area saved to "C:\Documents and Settings\Hana Doan\My Documents\SigmaKey\security backup\865074010652963Brcm.skb"
Unlocking phone...Done

I-IM-P · 12-11-2013, 06:55

done
--- 2013-12-11 12:52:04 ---
SigmaKey 1.31.04 Brcm2155x: Direct unlock
Broadcom USB to Serial (COM58), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/27/2011, USB\VID_0A5C&PID_2132&REV_0204
Software IMEI: 86507401zzzzzz
Detecting flash...512 Mb, page size: 2048
Security area saved to "C:\Users\phuhue\Documents\SigmaKey\security backup\865074011xxxxxxxBrcm.skb"
Unlocking phone...Done

jentz · 12-23-2013, 19:54

im trying to do this unlock but it allways get me an error, ive tried in 3 computers win 7 and xp an always same error

SigmaKey 1.32.02
520072873 Sigma dongle 1.34, Initializing...OK
--- 2013-12-23 14:52:04 ---
SigmaKey 1.32.02 Brcm2155x: Direct unlock
Broadcom USB to Serial (COM33), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/26/2011, USB\Vid_0a5c&Pid_2132&Rev_0205
Reading software IMEI...Missing response from phone

GSM_Support · 12-24-2013, 08:29

@ jentz,

Please make sure that:

Battery charged more than 50%
All the side programs, that may interfere with the phone, are closed
The phone cable will not be disconnected till the process is done
Connect phone to USB port placed on the back side of PC (motherboard's USB port).
Avoid using any kind of USB HUBS.
Phone has stock (factory) firmware version.
Ensure that the drivers are properly installed

After that run Direct Unlock operation according to this manual once again.

Best Regards
GSMServer team

nobal1976 · 12-26-2013, 14:21

Quote:

Originally Posted by T Mobile

you are wrong. Vol up + power then insert usb cable.

yes u are right always use with vol up +usb cable ......... vol down + usb not work

kushol · 05-05-2014, 15:15

SigmaKey v.1.39.00
509600550 Sigma dongle 1.41, Initializing...OK
--- 2014-05-05 20:06:23 ---
SigmaKey 1.39.00 Qcom: Direct unlock
ADB Testing Interface, Version BRCM USB 0.1, Name: pascal
Unsupported phone model
--- 2014-05-05 20:06:30 ---
SigmaKey 1.39.00 Qcom: Get unlock codes
ADB Testing Interface, Version BRCM USB 0.1, Name: pascal
Unsupported phone model
--- 2014-05-05 20:06:31 ---
SigmaKey 1.39.00 Qcom: Direct unlock
ADB Testing Interface, Version BRCM USB 0.1, Name: pascal
Unsupported phone model
--- 2014-05-05 20:06:43 ---
SigmaKey 1.39.00 Qcom: Connect Motorola Android phone
Connecting...Not found
--- 2014-05-05 20:06:48 ---
SigmaKey 1.39.00 Qcom: Connect Motorola Android phone
Connecting...Not found
--- 2014-05-05 20:06:50 ---
SigmaKey 1.39.00 Qcom: Direct unlock
ADB Testing Interface, Version BRCM USB 0.1, Name: pascal
Unsupported phone model
--- 2014-05-05 20:11:24 ---
SigmaKey 1.39.00 Qcom: Connect Motorola Android phone
Connecting...Not found
--- 2014-05-05 20:11:25 ---
SigmaKey 1.39.00 Qcom: Direct unlock
ADB Testing Interface, Version BRCM USB 0.1, Name: pascal
Unsupported phone model
--- 2014-05-05 20:11:31 ---
SigmaKey 1.39.00 Brcm2155x: Direct unlock
Reading software IMEI...Error writing to serial port
--- 2014-05-05 20:12:03 ---
SigmaKey 1.39.00 TI: Direct unlock
--- 2014-05-05 20:12:08 ---
SigmaKey 1.39.00 Brcm2155x: Get unlock codes
Reading software IMEI...Error writing to serial port
--- 2014-05-05 20:14:40 ---
SigmaKey 1.39.00 Brcm2155x: Direct unlock
Reading software IMEI...Error writing to serial port
--- 2014-05-05 20:14:49 ---
SigmaKey 1.39.00 Brcm2155x: Direct unlock
Reading software IMEI...Error writing to serial port
--- 2014-05-05 20:15:01 ---
SigmaKey 1.39.00 Brcm2155x: Direct unlock
Broadcom USB to Serial (COM25), Provider: Broadcom Corporation, Driver ver.: 1.8.6.26, Date: 6/24/2011, USB\Vid_0a5c&Pid_2132&Rev_0204
Software IMEI: 863425023660249
Detecting flash...512 Mb, page size: 2048
Security area saved to "C:\Documents and Settings\kushol\My Documents\SigmaKey\security backup\863425023660249Brcm.skb"
Unlocking phone...Done

R@jusat · 05-21-2014, 14:07

succsessfully unlock v768

SigmaKey 2.01.00 Brcm2155x: Direct unlock
Broadcom USB to Serial (COM3), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/27/2011, USB\Vid_0a5c&Pid_2132&Rev_0204
Software IMEI: 863xxxxxxxxxxxxxxxx
Detecting flash...512 Mb, page size: 2048
Security area saved to "C:\Documents and Settings\raju\My Documents\SigmaKey\security backup\86xxxxxxxxxxrcm.skb"
Unlocking phone...Don

dacelectronic · 07-24-2014, 12:59

i just did one with power volume down and battery out

--- 2014-07-24 04:52:54 ---
SigmaKey 2.03.03 Brcm2155x: Direct unlock
Broadcom USB to Serial (COM20), Provider: Broadcom Corporation, Driver ver.: 1.8.6.26, Date: 6/23/2011, USB\VID_0A5C&PID_2132&REV_0204
Software IMEI: 8650740*******7621
Detecting flash...512 Mb, page size: 2048
Security area saved to "C:\Users\cellshaq\Documents\SigmaKey\security backup\865074016967621Brcm.skb"
Unlocking phone...Done

lamran · 07-26-2014, 18:44

ng data...File I/O operation failed for sigma key

GSM_Support · 07-28-2014, 07:34

@ lamran,

In most cases such an issues are getting resolved by reinstalling Sigma Software.

Also, post here full log file from the operation you were trying to perform.
It would spread some light at this case.

Best Regards
GSMServer team

krish neupane · 08-07-2014, 09:10

Thanks a lot bro perfect working.

06-01-2013, 07:49	#1 (permalink)
[email protected] Member deceased !! Join Date: Jan 2008 Location: DreamSunlock Canada,TH,CN,BD Age: 36 Posts: 2,846 Member: 670820 Status: Offline Sonork: 100.1583728 Thanks Meter: 1,348	ZTE V768 unlock Done With Sigma-Box hold volume down and power button insert usb Manually select Broadcom Baseband processor type (BCM2155x for V768) click direct Unlock.

07-24-2013, 15:51	#2 (permalink)
rajeshchiyyan Product Supporter Join Date: Jul 2010 Location: MobilesFactory,trichy,TN,India Age: 33 Posts: 1,523 Member: 1347585 Status: Offline Sonork: 100.1596390 Thanks Meter: 467	Good bro thanks for the report Last edited by rajeshchiyyan; 07-24-2013 at 15:56.

12-23-2013, 19:54	#7 (permalink)
jentz Cheater -Don't Deal with him- Join Date: Apr 2007 Posts: 328 Member: 488833 Status: Offline Thanks Meter: 52	ZTE V768 unlocking... im trying to do this unlock but it allways get me an error, ive tried in 3 computers win 7 and xp an always same error SigmaKey 1.32.02 520072873 Sigma dongle 1.34, Initializing...OK --- 2013-12-23 14:52:04 --- SigmaKey 1.32.02 Brcm2155x: Direct unlock Broadcom USB to Serial (COM33), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/26/2011, USB\Vid_0a5c&Pid_2132&Rev_0205 Reading software IMEI...Missing response from phone Last edited by GSM_Support; 01-16-2015 at 11:25.

12-24-2013, 08:29	#8 (permalink)
GSM_Support Product Supporter Join Date: Feb 2005 Location: GSMserver Team Posts: 36,980 Member: 121052 Status: Offline Sonork: 100.107126 Thanks Meter: 80,766	@ jentz, Please make sure that: Battery charged more than 50% All the side programs, that may interfere with the phone, are closed The phone cable will not be disconnected till the process is done Connect phone to USB port placed on the back side of PC (motherboard's USB port). Avoid using any kind of USB HUBS. Phone has stock (factory) firmware version. Ensure that the drivers are properly installed After that run Direct Unlock operation according to this manual once again. Best Regards GSMServer team Last edited by GSM_Support; 12-24-2013 at 08:40.

07-24-2014, 12:59	#12 (permalink)
dacelectronic Freak Poster Join Date: Aug 2005 Location: jamaica w.i Age: 50 Posts: 211 Member: 170452 Status: Offline Thanks Meter: 24	unlock zte v768 i just did one with power volume down and battery out --- 2014-07-24 04:52:54 --- SigmaKey 2.03.03 Brcm2155x: Direct unlock Broadcom USB to Serial (COM20), Provider: Broadcom Corporation, Driver ver.: 1.8.6.26, Date: 6/23/2011, USB\VID_0A5C&PID_2132&REV_0204 Software IMEI: 8650740******7621 Detecting flash...512 Mb, page size: 2048 Security area saved to "C:\Users\cellshaq\Documents\SigmaKey\security backup\865074016967621Brcm.skb" Unlocking phone...Done Last edited by dacelectronic; 07-24-2014 at 13:00. Reason: i change some info*

11-19-2013, 04:26	#3 (permalink)
motorhead_dan Junior Member Join Date: Nov 2005 Posts: 8 Member: 200864 Status: Offline Thanks Meter: 1	nice referrence brod....thank

12-08-2013, 04:41	#4 (permalink)
T Mobile No Life Poster Join Date: Oct 2005 Age: 43 Posts: 561 Member: 186632 Status: Offline Thanks Meter: 51	you are wrong. Vol up + power then insert usb cable.

12-08-2013, 05:33	#5 (permalink)
Cingrular Freak Poster Join Date: May 2007 Posts: 238 Member: 511368 Status: Offline Thanks Meter: 23	Unlock ok with win XP HOLD Vol down then insert usb cable without Battery. SigmaKey 1.31.05 Brcm2155x: Direct unlock Broadcom USB to Serial (COM15), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/27/2011, USB\Vid_0a5c&Pid_2132&Rev_0204 Software IMEI: 865074010800935 Detecting flash...512 Mb, page size: 2048 Security area saved to "C:\Documents and Settings\Hana Doan\My Documents\SigmaKey\security backup\865074010800935Brcm.skb" Unlocking phone...Done --- 2013-12-08 11:29:10 --- SigmaKey 1.31.05 Brcm2155x: Direct unlock Broadcom USB to Serial (COM15), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/27/2011, USB\Vid_0a5c&Pid_2132&Rev_0204 Software IMEI: 865074010652963 Detecting flash...512 Mb, page size: 2048 Security area saved to "C:\Documents and Settings\Hana Doan\My Documents\SigmaKey\security backup\865074010652963Brcm.skb" Unlocking phone...Done

12-11-2013, 06:55	#6 (permalink)
I-IM-P Freak Poster Join Date: Dec 2009 Location: home Posts: 232 Member: 1190533 Status: Offline Thanks Meter: 33	done --- 2013-12-11 12:52:04 --- SigmaKey 1.31.04 Brcm2155x: Direct unlock Broadcom USB to Serial (COM58), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/27/2011, USB\VID_0A5C&PID_2132&REV_0204 Software IMEI: 86507401zzzzzz Detecting flash...512 Mb, page size: 2048 Security area saved to "C:\Users\phuhue\Documents\SigmaKey\security backup\865074011xxxxxxxBrcm.skb" Unlocking phone...Done

05-05-2014, 15:15	#10 (permalink)
kushol No Life Poster Join Date: Jun 2006 Location: ..::SL3 Unlock Source::.. Age: 38 Posts: 1,253 Member: 293662 Status: Offline Sonork: 100.1622609 Thanks Meter: 317	SigmaKey v.1.39.00 509600550 Sigma dongle 1.41, Initializing...OK --- 2014-05-05 20:06:23 --- SigmaKey 1.39.00 Qcom: Direct unlock ADB Testing Interface, Version BRCM USB 0.1, Name: pascal Unsupported phone model --- 2014-05-05 20:06:30 --- SigmaKey 1.39.00 Qcom: Get unlock codes ADB Testing Interface, Version BRCM USB 0.1, Name: pascal Unsupported phone model --- 2014-05-05 20:06:31 --- SigmaKey 1.39.00 Qcom: Direct unlock ADB Testing Interface, Version BRCM USB 0.1, Name: pascal Unsupported phone model --- 2014-05-05 20:06:43 --- SigmaKey 1.39.00 Qcom: Connect Motorola Android phone Connecting...Not found --- 2014-05-05 20:06:48 --- SigmaKey 1.39.00 Qcom: Connect Motorola Android phone Connecting...Not found --- 2014-05-05 20:06:50 --- SigmaKey 1.39.00 Qcom: Direct unlock ADB Testing Interface, Version BRCM USB 0.1, Name: pascal Unsupported phone model --- 2014-05-05 20:11:24 --- SigmaKey 1.39.00 Qcom: Connect Motorola Android phone Connecting...Not found --- 2014-05-05 20:11:25 --- SigmaKey 1.39.00 Qcom: Direct unlock ADB Testing Interface, Version BRCM USB 0.1, Name: pascal Unsupported phone model --- 2014-05-05 20:11:31 --- SigmaKey 1.39.00 Brcm2155x: Direct unlock Reading software IMEI...Error writing to serial port --- 2014-05-05 20:12:03 --- SigmaKey 1.39.00 TI: Direct unlock --- 2014-05-05 20:12:08 --- SigmaKey 1.39.00 Brcm2155x: Get unlock codes Reading software IMEI...Error writing to serial port --- 2014-05-05 20:14:40 --- SigmaKey 1.39.00 Brcm2155x: Direct unlock Reading software IMEI...Error writing to serial port --- 2014-05-05 20:14:49 --- SigmaKey 1.39.00 Brcm2155x: Direct unlock Reading software IMEI...Error writing to serial port --- 2014-05-05 20:15:01 --- SigmaKey 1.39.00 Brcm2155x: Direct unlock Broadcom USB to Serial (COM25), Provider: Broadcom Corporation, Driver ver.: 1.8.6.26, Date: 6/24/2011, USB\Vid_0a5c&Pid_2132&Rev_0204 Software IMEI: 863425023660249 Detecting flash...512 Mb, page size: 2048 Security area saved to "C:\Documents and Settings\kushol\My Documents\SigmaKey\security backup\863425023660249Brcm.skb" Unlocking phone...Done

05-21-2014, 14:07	#11 (permalink)
R@jusat No Life Poster Join Date: Apr 2008 Location: IN MY PC Posts: 1,582 Member: 745721 Status: Offline Sonork: 100.1605292 Thanks Meter: 2,390	succsessfully unlock v768 SigmaKey 2.01.00 Brcm2155x: Direct unlock Broadcom USB to Serial (COM3), Provider: Broadcom Corporation, Driver ver.: 1.8.6.27, Date: 9/27/2011, USB\Vid_0a5c&Pid_2132&Rev_0204 Software IMEI: 863xxxxxxxxxxxxxxxx Detecting flash...512 Mb, page size: 2048 Security area saved to "C:\Documents and Settings\raju\My Documents\SigmaKey\security backup\86xxxxxxxxxxrcm.skb" Unlocking phone...Don

07-26-2014, 18:44	#13 (permalink)
lamran No Life Poster Join Date: Sep 2006 Location: conakry Age: 42 Posts: 825 Member: 352958 Status: Offline Sonork: 100.1585201 Thanks Meter: 132	ng data...File I/O operation failed for sigma key

07-28-2014, 07:34	#14 (permalink)
GSM_Support Product Supporter Join Date: Feb 2005 Location: GSMserver Team Posts: 36,980 Member: 121052 Status: Offline Sonork: 100.107126 Thanks Meter: 80,766	@ lamran, In most cases such an issues are getting resolved by reinstalling Sigma Software. Also, post here full log file from the operation you were trying to perform. It would spread some light at this case. Best Regards GSMServer team Last edited by GSM_Support; 07-28-2014 at 09:10.

08-07-2014, 09:10	#15 (permalink)
krish neupane Freak Poster Join Date: Dec 2006 Posts: 473 Member: 412812 Status: Offline Thanks Meter: 97	Thanks a lot bro perfect working.