c3750 unlock error - GSM-Forum

khem · 05-22-2016, 21:06

Operation: Read Codes
Selected model: GT-C3750
Selected port: COM9 Z3X BOX Serial Port, 921600
Software version: 20.5

Connect phone in flash mode
Waiting phone... OK
Sending preloader... OK
Sending loader... OK
Checking Flash ID... OK
Detected Flash ID: 003000EC
Reading security... OK
Patching firmware block... error (1)

Done with Samsung Tool v.20.5

khem · 05-22-2016, 21:07

Operation: Unlock
Selected model: GT-C3750
Selected port: Auto, 921600
Software version: 25.3

Connect phone in flash mode
Waiting phone... OK
Sending preloader... OK
Sending loader... OK
Checking Flash ID... OK
Detected Flash ID: 003000EC
Reading security... OK
Patching firmware block... error (1)
Done with Samsung Tool PRO v.25.3

**blang** · 05-23-2016, 13:53

Quote:

Originally Posted by khem

Operation: Unlock
Selected model: GT-C3750
Selected port: Auto, 921600
Software version: 25.3

Connect phone in flash mode
Waiting phone... OK
Sending preloader... OK
Sending loader... OK
Checking Flash ID... OK
Detected Flash ID: 003000EC
Reading security... OK
Patching firmware block... error (1)
Done with Samsung Tool PRO v.25.3

what the firmware name inside phone?

hard · 09-24-2016, 20:26

I have the same problem on the latest Z3x software. Firmware C3750XXLJ1_C3750XDMA1

**blang** · 09-27-2016, 07:42

Quote:

Originally Posted by hard

I have the same problem on the latest Z3x software. Firmware C3750XXLJ1_C3750XDMA1

please post log of problem with last version of samsung tool.

someone90 · 03-12-2017, 00:17

the same problem with me, anybody can help me?

gsmpuky · 11-08-2017, 15:59

Operation: Read Codes
Selected model: GT-C3750
Selected port: COM6 USB Serial Port, 921600
Software version: 29.6

Connect phone in flash mode
Waiting phone... OK
Sending preloader... OK
Sending loader... OK
Checking Flash ID... OK
Detected Flash ID: 003000EC
Reading security... OK
Patching firmware block... error (1)

Done with Samsung Tool PRO v.29.6

akidh123 · 04-24-2018, 08:04

UNLOCK INSTRUCTIONS:
1. Press 'Unlock' button.
2. Connect the phone in flash mode:
- (Disconnect battery and connect USB cable, insert battery after
connecting.)
- (Or disconnect battery, press vol.down and connect USB cable, insert
battery after connecting).
3. When you see 'Rebooting phone' message in log and your phone is not
restarting automatically,
then you must restart it manually and wait till process will finished.

Operation: Unlock
Selected model: SM-B312E
Selected port: Auto, 921600
Software version: 31.4

Connect phone in flash mode
Waiting phone... OK
Sending preloader... OK
Sending loader... OK
Checking Flash ID... OK
Detected Flash ID: 220800EC
Reading security... OK
Patching firmware block... error (1)
Done with Samsung Tool PRO v.31.4
Solution for this?

05-22-2016, 21:06	#1 (permalink)
khem No Life Poster Join Date: Apr 2006 Location: Fast-Code™ MBKPHONE Ltd Age: 38 Posts: 1,889 Member: 269035 Status: Offline Sonork: 1,618,0786 Thanks Meter: 301	c3750 unlock error Operation: Read Codes Selected model: GT-C3750 Selected port: COM9 Z3X BOX Serial Port, 921600 Software version: 20.5 Connect phone in flash mode Waiting phone... OK Sending preloader... OK Sending loader... OK Checking Flash ID... OK Detected Flash ID: 003000EC Reading security... OK Patching firmware block... error (1) Done with Samsung Tool v.20.5

05-22-2016, 21:07	#2 (permalink)
khem No Life Poster Join Date: Apr 2006 Location: Fast-Code™ MBKPHONE Ltd Age: 38 Posts: 1,889 Member: 269035 Status: Offline Sonork: 1,618,0786 Thanks Meter: 301	Operation: Unlock Selected model: GT-C3750 Selected port: Auto, 921600 Software version: 25.3 Connect phone in flash mode Waiting phone... OK Sending preloader... OK Sending loader... OK Checking Flash ID... OK Detected Flash ID: 003000EC Reading security... OK Patching firmware block... error (1) Done with Samsung Tool PRO v.25.3

09-24-2016, 20:26	#4 (permalink)
hard Freak Poster Join Date: Jun 2002 Location: Ireland,Poland Age: 50 Posts: 183 Member: 13256 Status: Offline Thanks Meter: 5	I have the same problem on the latest Z3x software. Firmware C3750XXLJ1_C3750XDMA1

03-12-2017, 00:17	#6 (permalink)
someone90 Junior Member Join Date: May 2016 Posts: 2 Member: 2574649 Status: Offline Thanks Meter: 0	the same problem with me, anybody can help me?

11-08-2017, 15:59	#7 (permalink)
gsmpuky Freak Poster Join Date: Mar 2004 Location: Slovakia VT Posts: 493 Member: 59529 Status: Offline Thanks Meter: 115	Operation: Read Codes Selected model: GT-C3750 Selected port: COM6 USB Serial Port, 921600 Software version: 29.6 Connect phone in flash mode Waiting phone... OK Sending preloader... OK Sending loader... OK Checking Flash ID... OK Detected Flash ID: 003000EC Reading security... OK Patching firmware block... error (1) Done with Samsung Tool PRO v.29.6

04-24-2018, 08:04	#8 (permalink)
akidh123 Junior Member Join Date: Dec 2017 Location: Sri Lanka Posts: 28 Member: 2785173 Status: Offline Thanks Meter: 5	UNLOCK INSTRUCTIONS: 1. Press 'Unlock' button. 2. Connect the phone in flash mode: - (Disconnect battery and connect USB cable, insert battery after connecting.) - (Or disconnect battery, press vol.down and connect USB cable, insert battery after connecting). 3. When you see 'Rebooting phone' message in log and your phone is not restarting automatically, then you must restart it manually and wait till process will finished. Operation: Unlock Selected model: SM-B312E Selected port: Auto, 921600 Software version: 31.4 Connect phone in flash mode Waiting phone... OK Sending preloader... OK Sending loader... OK Checking Flash ID... OK Detected Flash ID: 220800EC Reading security... OK Patching firmware block... error (1) Done with Samsung Tool PRO v.31.4 Solution for this?