Question about Samsung SGH-D840 Smartphone

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How do i change the screen on my samsung d8400 mobile phone

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If you're planning to have the external screen for your phone changed.. You might wanna go to any samsung customer service center if you have a samsung phone for assistance.

Posted on Sep 05, 2009

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Posted on Jan 02, 2017

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I forgot my phone lock code for a samsung s7220


For all:
*#06# Show IMEI
*#9999# Show mobile Software Version
*#0837# Show mobile Software Version (instructions)
*#0001# Show Serial Parameters
*#9125# Activates the smiley when charging
*#0523# LCD Contrast
samsung-mobiles2.jpg *#9998*228# Battery status (capacity, voltage, temperature)
*#9998*246# Program status
*#9998*289# Change Alarm Buzzer Frequency
*#9998*324# Debug Screens
*#9998*364# Watchdog
*#9998*377# EEPROM Error Stack - Use side keys to select values
*#9998*427# Trace Watchdog
*#9998*523# Change LCD contrast
*#9998*544# Jig detect
*#9998*636# Memory status
*#9998*746# SIM File Size
*#9998*778# SIM Service Table
*#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error
*#9998*786# Run, Last UP, Last DOWN
*#9998*837# Mobile Software Version
*#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated
*#9998*862# Vocoder Reg - Normal, Earphone or Carkit
*#9998*872# Diag
*#9998*947# Reset On Fatal Error
*#9998*999# Last/Chk
*#9998*9266# Yann debug screen (Debug Screens?)
*#9998*9999# Software version
*0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1)
*0002*?# unknown Samsung's comand
*0003*?# unknown Samsung's comand
For Mobile phones SGH (R210, T100, A300...)
if Samsung code is in format *#9998*xxx#
try write in this *#0xxx#
SGH-600
SGH-2100
*2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0
*2767*2878# Custom EEPROM Reset
Samsung mobile phone codes: Samsung E700
*2767*688# remove USER CODE and SIMLOCK
Samsung mobile phone codes: Samsung V200
Unlocking:
Power on the mobile phone without SIM card and type these codes:
*2767*63342# and press green button
*2767*3855# and press green button
*2767*2878# and press green button
*2767*927# and press green button
*2767*7822573738# press button
Phone will be unlocked, but all trims are reseted !!!
Mobile phone must be fully charged
Samsung mobile phone codes: Samsung S500
Unlocking
*2767*MVT# (*2767*688#) E2P MVT Reset
*#SIMLOCK# (*#7465625#)

Jan 15, 2011 | Samsung S7220 Cell Phone

Tip

Samsung cell phone's secret codes + tricks


*#06# Show IMEI
*#9999# Show mobile Software Version
*#0837# Show mobile Software Version (instructions)
*#0001# Show Serial Parameters
*#9125# Activates the smiley when charging
*#0523# LCD Contrast

*#9998*228# Battery status (capacity, voltage, temperature)
*#9998*246# Program status
*#9998*289# Change Alarm Buzzer Frequency
*#9998*324# Debug Screens
*#9998*364# Watchdog
*#9998*377# EEPROM Error Stack - Use side keys to select values
*#9998*427# Trace Watchdog
*#9998*523# Change LCD contrast
*#9998*544# Jig detect
*#9998*636# Memory status
*#9998*746# SIM File Size
*#9998*778# SIM Service Table
*#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error
*#9998*786# Run, Last UP, Last DOWN
*#9998*837# Mobile Software Version
*#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated
*#9998*862# Vocoder Reg - Normal, Earphone or Carkit
*#9998*872# Diag
*#9998*947# Reset On Fatal Error
*#9998*999# Last/Chk
*#9998*9266# Yann debug screen (Debug Screens?)
*#9998*9999# Software version
*0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1)
*0002*?# unknown Samsung's comand
*0003*?# unknown Samsung's comand
For Mobile phones SGH (R210, T100, A300...)
if Samsung code is in format *#9998*xxx#
try write in this *#0xxx#
SGH-600
SGH-2100
*2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0
*2767*2878# Custom EEPROM Reset
Samsung mobile phone codes: Samsung E700
*2767*688# remove USER CODE and SIMLOCK
Samsung mobile phone codes: Samsung V200
Unlocking:
Power on the mobile phone without SIM card and type these codes:
*2767*63342# and press green button
*2767*3855# and press green button
*2767*2878# and press green button
*2767*927# and press green button
*2767*7822573738# press button
Phone will be unlocked, but all trims are reseted !!!
Mobile phone must be fully charged
Samsung mobile phone codes: Samsung S500
Unlocking
*2767*MVT# (*2767*688#) E2P MVT Reset
*#SIMLOCK# (*#7465625#)


on Aug 05, 2010 | Cell Phones

1 Answer

I FORGRT MY PASSWORD IN MY MOBILE I CANNOT OPEN MY PHONE


*#06# Show IMEI
*#9999# Show mobile Software Version
*#0837# Show mobile Software Version (instructions)
*#0001# Show Serial Parameters
*#9125# Activates the smiley when charging
*#0523# LCD Contrast

*#9998*228# Battery status (capacity, voltage, temperature)
*#9998*246# Program status
*#9998*289# Change Alarm Buzzer Frequency
*#9998*324# Debug Screens
*#9998*364# Watchdog
*#9998*377# EEPROM Error Stack - Use side keys to select values
*#9998*427# Trace Watchdog
*#9998*523# Change LCD contrast
*#9998*544# Jig detect
*#9998*636# Memory status
*#9998*746# SIM File Size
*#9998*778# SIM Service Table
*#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error
*#9998*786# Run, Last UP, Last DOWN
*#9998*837# Mobile Software Version
*#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated
*#9998*862# Vocoder Reg - Normal, Earphone or Carkit
*#9998*872# Diag
*#9998*947# Reset On Fatal Error
*#9998*999# Last/Chk
*#9998*9266# Yann debug screen (Debug Screens?)
*#9998*9999# Software version
*0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1)
*0002*?# unknown Samsung's comand
*0003*?# unknown Samsung's comand
For Mobile phones SGH (R210, T100, A300...)
if Samsung code is in format *#9998*xxx#
try write in this *#0xxx#
SGH-600
SGH-2100
*2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0
*2767*2878# Custom EEPROM Reset
Samsung mobile phone codes: Samsung E700
*2767*688# remove USER CODE and SIMLOCK
Samsung mobile phone codes: Samsung V200
Unlocking:
Power on the mobile phone without SIM card and type these codes:
*2767*63342# and press green button
*2767*3855# and press green button
*2767*2878# and press green button
*2767*927# and press green button
*2767*7822573738# press button
Phone will be unlocked, but all trims are reseted !!!
Mobile phone must be fully charged
Samsung mobile phone codes: Samsung S500
Unlocking
*2767*MVT# (*2767*688#) E2P MVT Reset
*#SIMLOCK# (*#7465625#)

Jan 13, 2011 | Samsung SGH-D980 Cell Phone

4 Answers

Secret codes of samsung?


*#06# Show IMEI
*#9999# Show mobile Software Version
*#0837# Show mobile Software Version (instructions)
*#0001# Show Serial Parameters
*#9125# Activates the smiley when charging
*#0523# LCD Contrast
samsung mobiles

*#9998*228# Battery status (capacity, voltage, temperature)
*#9998*246# Program status
*#9998*289# Change Alarm Buzzer Frequency
*#9998*324# Debug Screens
*#9998*364# Watchdog
*#9998*377# EEPROM Error Stack - Use side keys to select values
*#9998*427# Trace Watchdog
*#9998*523# Change LCD contrast
*#9998*544# Jig detect
*#9998*636# Memory status
*#9998*746# SIM File Size
*#9998*778# SIM Service Table
*#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error

*#9998*786# Run, Last UP, Last DOWN
*#9998*837# Mobile Software Version
*#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated

*#9998*862# Vocoder Reg - Normal, Earphone or Carkit
*#9998*872# Diag
*#9998*947# Reset On Fatal Error
*#9998*999# Last/Chk

*#9998*9266# Yann debug screen (Debug Screens?)
*#9998*9999# Software version

*0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1)
*0002*?# unknown Samsung's comand
*0003*?# unknown Samsung's comand

For Mobile phones SGH (R210, T100, A300...)
if Samsung code is in format *#9998*xxx#
try write in this *#0xxx#

SGH-600
SGH-2100

*2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0

*2767*2878# Custom EEPROM Reset

Samsung mobile phone codes: Samsung E700

*2767*688# remove USER CODE and SIMLOCK

Samsung mobile phone codes: Samsung V200

Unlocking:
Power on the mobile phone without SIM card and type these codes:

*2767*63342# and press green button
*2767*3855# and press green button
*2767*2878# and press green button
*2767*927# and press green button
*2767*7822573738# press button

Phone will be unlocked, but all trims are reseted !!!
Mobile phone must be fully charged

Samsung mobile phone codes: Samsung S500
Unlocking
*2767*MVT# (*2767*688#) E2P MVT Reset
*#SIMLOCK# (*#7465625#

Aug 12, 2010 | Samsung SGH-D900 Cellular Phone

1 Answer

My samsung mobile phone s locked and i'm not having the password so pls help me out. it samsung guru E1310S


hi try these codes
*#06# Show IMEI *#9999# Show mobile Software Version *#0837# Show mobile Software Version (instructions) *#0001# Show Serial Parameters *#9125# Activates the smiley when charging *#0523# LCD Contrast
*#9998*228# Battery status (capacity, voltage, temperature) *#9998*246# Program status *#9998*289# Change Alarm Buzzer Frequency *#9998*324# Debug Screens *#9998*364# Watchdog *#9998*377# EEPROM Error Stack - Use side keys to select values *#9998*427# Trace Watchdog *#9998*523# Change LCD contrast *#9998*544# Jig detect *#9998*636# Memory status *#9998*746# SIM File Size *#9998*778# SIM Service Table *#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error *#9998*786# Run, Last UP, Last DOWN *#9998*837# Mobile Software Version *#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated *#9998*862# Vocoder Reg - Normal, Earphone or Carkit *#9998*872# Diag *#9998*947# Reset On Fatal Error *#9998*999# Last/Chk *#9998*9266# Yann debug screen (Debug Screens?) *#9998*9999# Software version *0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1) *0002*?# unknown Samsung's comand *0003*?# unknown Samsung's comand For Mobile phones SGH (R210, T100, A300...) if Samsung code is in format *#9998*xxx# try write in this *#0xxx# SGH-600 SGH-2100 *2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0 *2767*2878# Custom EEPROM Reset Samsung mobile phone codes: Samsung E700 *2767*688# remove USER CODE and SIMLOCK Samsung mobile phone codes: Samsung V200 Unlocking: Power on the mobile phone without SIM card and type these codes: *2767*63342# and press green button *2767*3855# and press green button *2767*2878# and press green button *2767*927# and press green button *2767*7822573738# press button Phone will be unlocked, but all trims are reseted !!! Mobile phone must be fully charged Samsung mobile phone codes: Samsung S500 Unlocking *2767*MVT# (*2767*688#) E2P MVT Reset *#SIMLOCK# (*#7465625#)

May 16, 2010 | Cell Phones

1 Answer

What is the security code for samsung SGH-D900


hi try these codes
*#06# Show IMEI *#9999# Show mobile Software Version *#0837# Show mobile Software Version (instructions) *#0001# Show Serial Parameters *#9125# Activates the smiley when charging *#0523# LCD Contrast
*#9998*228# Battery status (capacity, voltage, temperature) *#9998*246# Program status *#9998*289# Change Alarm Buzzer Frequency *#9998*324# Debug Screens *#9998*364# Watchdog *#9998*377# EEPROM Error Stack - Use side keys to select values *#9998*427# Trace Watchdog *#9998*523# Change LCD contrast *#9998*544# Jig detect *#9998*636# Memory status *#9998*746# SIM File Size *#9998*778# SIM Service Table *#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error *#9998*786# Run, Last UP, Last DOWN *#9998*837# Mobile Software Version *#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated *#9998*862# Vocoder Reg - Normal, Earphone or Carkit *#9998*872# Diag *#9998*947# Reset On Fatal Error *#9998*999# Last/Chk *#9998*9266# Yann debug screen (Debug Screens?) *#9998*9999# Software version *0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1) *0002*?# unknown Samsung's comand *0003*?# unknown Samsung's comand For Mobile phones SGH (R210, T100, A300...) if Samsung code is in format *#9998*xxx# try write in this *#0xxx# SGH-600 SGH-2100 *2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0 *2767*2878# Custom EEPROM Reset Samsung mobile phone codes: Samsung E700 *2767*688# remove USER CODE and SIMLOCK Samsung mobile phone codes: Samsung V200 Unlocking: Power on the mobile phone without SIM card and type these codes: *2767*63342# and press green button *2767*3855# and press green button *2767*2878# and press green button *2767*927# and press green button *2767*7822573738# press button Phone will be unlocked, but all trims are reseted !!! Mobile phone must be fully charged Samsung mobile phone codes: Samsung S500 Unlocking *2767*MVT# (*2767*688#) E2P MVT Reset *#SIMLOCK# (*#7465625#)

May 15, 2010 | Samsung SGH-D900 Cellular Phone

1 Answer

I need to unlock the network lock for samsung sgh l810i


hi try these codes
*#06# Show IMEI *#9999# Show mobile Software Version *#0837# Show mobile Software Version (instructions) *#0001# Show Serial Parameters *#9125# Activates the smiley when charging *#0523# LCD Contrast
*#9998*228# Battery status (capacity, voltage, temperature) *#9998*246# Program status *#9998*289# Change Alarm Buzzer Frequency *#9998*324# Debug Screens *#9998*364# Watchdog *#9998*377# EEPROM Error Stack - Use side keys to select values *#9998*427# Trace Watchdog *#9998*523# Change LCD contrast *#9998*544# Jig detect *#9998*636# Memory status *#9998*746# SIM File Size *#9998*778# SIM Service Table *#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error *#9998*786# Run, Last UP, Last DOWN *#9998*837# Mobile Software Version *#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated *#9998*862# Vocoder Reg - Normal, Earphone or Carkit *#9998*872# Diag *#9998*947# Reset On Fatal Error *#9998*999# Last/Chk *#9998*9266# Yann debug screen (Debug Screens?) *#9998*9999# Software version *0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1) *0002*?# unknown Samsung's comand *0003*?# unknown Samsung's comand For Mobile phones SGH (R210, T100, A300...) if Samsung code is in format *#9998*xxx# try write in this *#0xxx# SGH-600 SGH-2100 *2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0 *2767*2878# Custom EEPROM Reset Samsung mobile phone codes: Samsung E700 *2767*688# remove USER CODE and SIMLOCK Samsung mobile phone codes: Samsung V200 Unlocking: Power on the mobile phone without SIM card and type these codes: *2767*63342# and press green button *2767*3855# and press green button *2767*2878# and press green button *2767*927# and press green button *2767*7822573738# press button Phone will be unlocked, but all trims are reseted !!! Mobile phone must be fully charged Samsung mobile phone codes: Samsung S500 Unlocking *2767*MVT# (*2767*688#) E2P MVT Reset *#SIMLOCK# (*#7465625#)

May 14, 2010 | Samsung SGH2100SGH600V300 Unlock/Unlocking...

1 Answer

My samsung a766 in in phone lock


hi try these codes
*#06# Show IMEI *#9999# Show mobile Software Version *#0837# Show mobile Software Version (instructions) *#0001# Show Serial Parameters *#9125# Activates the smiley when charging *#0523# LCD Contrast
*#9998*228# Battery status (capacity, voltage, temperature) *#9998*246# Program status *#9998*289# Change Alarm Buzzer Frequency *#9998*324# Debug Screens *#9998*364# Watchdog *#9998*377# EEPROM Error Stack - Use side keys to select values *#9998*427# Trace Watchdog *#9998*523# Change LCD contrast *#9998*544# Jig detect *#9998*636# Memory status *#9998*746# SIM File Size *#9998*778# SIM Service Table *#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error *#9998*786# Run, Last UP, Last DOWN *#9998*837# Mobile Software Version *#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated *#9998*862# Vocoder Reg - Normal, Earphone or Carkit *#9998*872# Diag *#9998*947# Reset On Fatal Error *#9998*999# Last/Chk *#9998*9266# Yann debug screen (Debug Screens?) *#9998*9999# Software version *0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1) *0002*?# unknown Samsung's comand *0003*?# unknown Samsung's comand For Mobile phones SGH (R210, T100, A300...) if Samsung code is in format *#9998*xxx# try write in this *#0xxx# SGH-600 SGH-2100 *2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0 *2767*2878# Custom EEPROM Reset Samsung mobile phone codes: Samsung E700 *2767*688# remove USER CODE and SIMLOCK Samsung mobile phone codes: Samsung V200 Unlocking: Power on the mobile phone without SIM card and type these codes: *2767*63342# and press green button *2767*3855# and press green button *2767*2878# and press green button *2767*927# and press green button *2767*7822573738# press button Phone will be unlocked, but all trims are reseted !!! Mobile phone must be fully charged Samsung mobile phone codes: Samsung S500 Unlocking *2767*MVT# (*2767*688#) E2P MVT Reset *#SIMLOCK# (*#7465625#)

May 12, 2010 | Samsung SYNC SGH-A707 Cellular Phone

1 Answer

Phonelock


Hi try this
r all: *#06# Show IMEI *#9999# Show mobile Software Version *#0837# Show mobile Software Version (instructions) *#0001# Show Serial Parameters *#9125# Activates the smiley when charging *#0523# LCD Contrast
*#9998*228# Battery status (capacity, voltage, temperature) *#9998*246# Program status *#9998*289# Change Alarm Buzzer Frequency *#9998*324# Debug Screens *#9998*364# Watchdog *#9998*377# EEPROM Error Stack - Use side keys to select values *#9998*427# Trace Watchdog *#9998*523# Change LCD contrast *#9998*544# Jig detect *#9998*636# Memory status *#9998*746# SIM File Size *#9998*778# SIM Service Table *#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error *#9998*786# Run, Last UP, Last DOWN *#9998*837# Mobile Software Version *#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated *#9998*862# Vocoder Reg - Normal, Earphone or Carkit *#9998*872# Diag *#9998*947# Reset On Fatal Error *#9998*999# Last/Chk *#9998*9266# Yann debug screen (Debug Screens?) *#9998*9999# Software version *0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1) *0002*?# unknown Samsung's comand *0003*?# unknown Samsung's comand For Mobile phones SGH (R210, T100, A300...) if Samsung code is in format *#9998*xxx# try write in this *#0xxx# SGH-600 SGH-2100 *2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0 *2767*2878# Custom EEPROM Reset Samsung mobile phone codes: Samsung E700 *2767*688# remove USER CODE and SIMLOCK Samsung mobile phone codes: Samsung V200 Unlocking: Power on the mobile phone without SIM card and type these codes: *2767*63342# and press green button *2767*3855# and press green button *2767*2878# and press green button *2767*927# and press green button *2767*7822573738# press button Phone will be unlocked, but all trims are reseted !!! Mobile phone must be fully charged Samsung mobile phone codes: Samsung S500 Unlocking *2767*MVT# (*2767*688#) E2P MVT Reset *#SIMLOCK# (*#7465625#)

May 13, 2010 | Samsung SGH-J600 Cellular Phone

1 Answer

I had forgotten my samsung metro 3310 app codes


hi try these codes
*#06# Show IMEI *#9999# Show mobile Software Version *#0837# Show mobile Software Version (instructions) *#0001# Show Serial Parameters *#9125# Activates the smiley when charging *#0523# LCD Contrast
*#9998*228# Battery status (capacity, voltage, temperature) *#9998*246# Program status *#9998*289# Change Alarm Buzzer Frequency *#9998*324# Debug Screens *#9998*364# Watchdog *#9998*377# EEPROM Error Stack - Use side keys to select values *#9998*427# Trace Watchdog *#9998*523# Change LCD contrast *#9998*544# Jig detect *#9998*636# Memory status *#9998*746# SIM File Size *#9998*778# SIM Service Table *#9998*785# RTK (Run Time Kernel) errors - if ok then phn is reset, info is put in memory error *#9998*786# Run, Last UP, Last DOWN *#9998*837# Mobile Software Version *#9998*842# Test ******** - Flash the screenlight during 10 sec and vibration activated *#9998*862# Vocoder Reg - Normal, Earphone or Carkit *#9998*872# Diag *#9998*947# Reset On Fatal Error *#9998*999# Last/Chk *#9998*9266# Yann debug screen (Debug Screens?) *#9998*9999# Software version *0001*s*f*t# Changes serial parameters (s=?, f=0.1, t=0.1) *0002*?# unknown Samsung's comand *0003*?# unknown Samsung's comand For Mobile phones SGH (R210, T100, A300...) if Samsung code is in format *#9998*xxx# try write in this *#0xxx# SGH-600 SGH-2100 *2767*3855# Full EEPROM Reset (THIS CODE REMMOVES SP-LOCK! but also changes IMEI to 447967-89-400044-0 *2767*2878# Custom EEPROM Reset Samsung mobile phone codes: Samsung E700 *2767*688# remove USER CODE and SIMLOCK Samsung mobile phone codes: Samsung V200 Unlocking: Power on the mobile phone without SIM card and type these codes: *2767*63342# and press green button *2767*3855# and press green button *2767*2878# and press green button *2767*927# and press green button *2767*7822573738# press button Phone will be unlocked, but all trims are reseted !!! Mobile phone must be fully charged Samsung mobile phone codes: Samsung S500 Unlocking *2767*MVT# (*2767*688#) E2P MVT Reset *#SIMLOCK# (*#7465625#)

May 11, 2010 | Cell Phones

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