samsung c3750 won't unlock! - GSM-Forum

wearephones · 01-26-2012, 17:20

Selected model: C3750
Selected com port: COM15
Selected speed port: 115200
Attention !!! Use this operation after flashing phone
Search diag port... OK (COM3)
Timeout
Deactivate MSL - fail
Unlock - fail
Elapsed time: 76 second, sw ver: 3.5.0032

any suggestion is much appreciated.thanks in advance!

dekimaks · 01-26-2012, 23:52

Same problem...any idea

dalavera · 01-31-2012, 13:58

full flash your phone with z3x 100% work

ricardo ariza a · 02-22-2012, 15:25

Please answer yes or no job

kasalapi · 04-06-2012, 09:25

I also flashed the phone and it still not working!
What cable are you using?
Normal micro USB cable or RJ45 (C3300)

Selected model: C3750
Selected com port: COM29
Selected speed port: 115200
Attention !!! Use this operation after flashing phone
Search diag port... OK (COM1)
Timeout
Deactivate MSL - fail
Unlock - fail
Elapsed time: 76 second, sw ver: 3.5.0035

hjfk · 04-11-2012, 19:25

Selected model: C3750
Selected com port: COM5
Selected speed port: 921600
Attention !!! Use this operation after flashing phone
Search diag port... OK (COM5)
Phone SN: RV1C252ZTP
Deactivate MSL - OK
Unlock - ok
Elapsed time: 17 second, sw ver: 3.5.0032
-------------------------------------------------------------------------------
IF NOT UNLOCK TRY READCODES

Selected model: C3750
Selected com port: COM5
Selected speed port: 921600
Attention !!! Use this operation after flashing phone
Search diag port... OK (COM5)
Phone SN: RV1C252ZTP
Deactivate MSL - OK
Calculated code please wait...
Decrypted time: 6 sec
This is zone 0
[PCK]:Enter this without sim #0141*00000000# this is sim lock
[NCK]:Enter this without sim #0111*00000000# this is net lock
[SCK]:Enter this without sim #0121*00000000# this is CP lock
[SPCK]:Enter this without sim #0133*00000000# this is SP lock
[MCK]:Enter this without sim #0199*00000000# this is Master(freeze) code

Read info - ok
Elapsed time: 48 second, sw ver: 3.5.0032
Selected com port: COM5
Search diag port... OK (COM5)
COM PORT AND DIAG PORT SAME
CHANGE COM MODEM ON 3 FOR MY PHONE IS 5

sosmobile · 05-04-2012, 13:25

- Unactive com port 1 in your computer
- Choose c3750 model in Z3
- Choose direct unlock or read code
- Press * and connect phone by USB cable

Unlock done

zikouu · 05-29-2012, 09:48

how to do this: unactive com port in computer?

michal.stika · 10-22-2013, 15:09

"full flash your phone with z3x 100% work"

very nice solution

thanks bro 100% tested

waly33 · 11-02-2015, 14:45

I've same problem before, just need to flash and after direct unlock and its ok

01-26-2012, 17:20	#1 (permalink)
wearephones Freak Poster Join Date: Oct 2003 Location: Bolton Age: 44 Posts: 491 Member: 41976 Status: Offline Thanks Meter: 33	samsung c3750 won't unlock! Selected model: C3750 Selected com port: COM15 Selected speed port: 115200 Attention !!! Use this operation after flashing phone Search diag port... OK (COM3) Timeout Deactivate MSL - fail Unlock - fail Elapsed time: 76 second, sw ver: 3.5.0032 any suggestion is much appreciated.thanks in advance!

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01-26-2012, 23:52	#2 (permalink)
dekimaks Junior Member Join Date: Jun 2011 Posts: 19 Member: 1592332 Status: Offline Thanks Meter: 2	Same problem...any idea

01-31-2012, 13:58	#3 (permalink)
dalavera Insane Poster Join Date: Oct 2005 Posts: 64 Member: 188132 Status: Offline Thanks Meter: 2	full flash your phone with z3x 100% work

02-22-2012, 15:25	#4 (permalink)
ricardo ariza a Freak Poster Join Date: Jul 2005 Location: Colombia, Bogota Age: 54 Posts: 122 Member: 160595 Status: Offline Thanks Meter: 6	Please answer yes or no job

04-06-2012, 09:25	#5 (permalink)
kasalapi Freak Poster Join Date: Mar 2004 Age: 43 Posts: 134 Member: 57806 Status: Offline Thanks Meter: 4	I also flashed the phone and it still not working! What cable are you using? Normal micro USB cable or RJ45 (C3300) Selected model: C3750 Selected com port: COM29 Selected speed port: 115200 Attention !!! Use this operation after flashing phone Search diag port... OK (COM1) Timeout Deactivate MSL - fail Unlock - fail Elapsed time: 76 second, sw ver: 3.5.0035

04-11-2012, 19:25	#6 (permalink)
hjfk Junior Member Join Date: Sep 2008 Location: fance Posts: 5 Member: 865887 Status: Offline Thanks Meter: 0	Selected model: C3750 Selected com port: COM5 Selected speed port: 921600 Attention !!! Use this operation after flashing phone Search diag port... OK (COM5) Phone SN: RV1C252ZTP Deactivate MSL - OK Unlock - ok Elapsed time: 17 second, sw ver: 3.5.0032 ------------------------------------------------------------------------------- IF NOT UNLOCK TRY READCODES Selected model: C3750 Selected com port: COM5 Selected speed port: 921600 Attention !!! Use this operation after flashing phone Search diag port... OK (COM5) Phone SN: RV1C252ZTP Deactivate MSL - OK Calculated code please wait... Decrypted time: 6 sec This is zone 0 [PCK]:Enter this without sim #014100000000# this is sim lock [NCK]:Enter this without sim #011100000000# this is net lock [SCK]:Enter this without sim #012100000000# this is CP lock [SPCK]:Enter this without sim #013300000000# this is SP lock [MCK]:Enter this without sim #0199*00000000# this is Master(freeze) code Read info - ok Elapsed time: 48 second, sw ver: 3.5.0032 Selected com port: COM5 Search diag port... OK (COM5) COM PORT AND DIAG PORT SAME CHANGE COM MODEM ON 3 FOR MY PHONE IS 5

05-04-2012, 13:25	#7 (permalink)
sosmobile Freak Poster Join Date: Nov 2007 Posts: 225 Member: 635560 Status: Offline Thanks Meter: 3	- Unactive com port 1 in your computer - Choose c3750 model in Z3 - Choose direct unlock or read code - Press * and connect phone by USB cable Unlock done

05-29-2012, 09:48	#8 (permalink)
zikouu Freak Poster Join Date: Mar 2007 Posts: 165 Member: 464326 Status: Offline Thanks Meter: 13	how to do this: unactive com port in computer?

10-22-2013, 15:09	#9 (permalink)
michal.stika Insane Poster Join Date: Jul 2009 Location: Czech Republic, Mladá Boleslav Age: 42 Posts: 94 Member: 1070103 Status: Offline Thanks Meter: 5	"full flash your phone with z3x 100% work" very nice solution thanks bro 100% tested

11-02-2015, 14:45	#10 (permalink)
waly33 Junior Member Join Date: Sep 2015 Posts: 27 Member: 2455364 Status: Offline Thanks Meter: 8	I've same problem before, just need to flash and after direct unlock and its ok