How to get Menu service

hi check the large diodes in the power supply board, do this with the power off, make sure the tv is unplugged,also check capacitors thanks

shaun

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electro-medical.blogspot.com/

In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Hi,
Can you help me to enter Menu service of an Lg 42lv5400, please ?
Zaki

Hi,
Please see below instructions in details on how to unlock code for LG phones, (i have included various model of LG for you to try)


Here are some unlock codes for AT&T LG phone available, menawhile , including the methods of entering the Unlock Code on your LG phones attached to them. Hope this is useful. AT&T cell phone Questions&Answetrs
Model : AT&T LG VU CU915 & CU920
1. Put a AT&T or Cingular SIM in the phone; it does not have to be an active SIM 2. Enter *#865625# then the 16 digit unlock code 3. Device should say: Network Lock Deactivated 4. Phone may automatically reboot and is now unlocked !
Model :AT&T LG C2000
Insert non-Cingular SIM card Power on the handset - phone will display "phone restricted" Select "Cancel" - phone will display "phone restriction code" Enter the SIM Unlock code. Select "OK" - the handset is now successfully unlocked
Model : LG TU720 - LG CU720 and all LG Shine SERIES
1) Power ON your phone with an accepted SIM card 2) Type *#865625#UNLOCK CODE 3) Press OK 4) Device is now unlocked
Model : LG CE110
1) Put a non AT&T or Cingular SIM in the phone; 2) The phone display: Invalid Smart Chip 3) Power on handset 4) Select "Cancel" - phone displays "phone restriction code" 5) Enter the unlock code (8 digit code*) 6) Select "OK'" - the handset is successfully unlocked
Model : LG CU400
1 - Insert non-Cingular SIM card" 2 - Power on the handset - Phone will display "Invalid SmartChip" 3 - Phone will display "Invalid SmartChip" 4 - Enter 159753#*# 5 - Enter the 8 digit SIM Unlock code 6 - Select "OK" 7 - The handset is now successfully unlocked
Model : LG CU500
1 - Insert non-Cingular SIM card" 2 - Power on the handset - Phone will display "Invalid SmartChip" (IF THE PHONE DOES NOT DISPLAY INVALID SMARTCHIP, PLEASE POWER OFF AND ON AGAIN) 3 - In Idle screen, enter 159753#*#. Phone will display "Enter NCK, Remaining 5 4 - Enter the 8 digit SIM Unlock code 5 - Select "OK" 6 - The handset is now successfully unlocked
How to Unlock LG CU515:
1-Insert non-Cingular SIM card" 2-Power on the handset - Phone will display "Invalid SmartChip". 3-Enter *#865625# then select option 1 and then again select 1 4-Enter the 16 digit SIM Unlock code 5-Device should say: Network Lock Deactivated 6-The handset is unlocked. 7-How to Enter Unlock Codes on CU575 (Trax) How to Enter Unlock Codes on LG F2250:
1-With allowed sim card in the start menu type: 2945#*3311#. 2-Handset shows saved, then return to startup screen 3-Press Menu key, choose Settings > Security > Sim Lock> Network > Deactivate, handset will now show 'Enter NCK' 4-Enter your unlock code and OK. How to Enter Unlock Codes on LG U8110:
1-With a not allowed sim card in your phone enter Pin code then validate, type: 277634#*# 2-Select 'Sim Unlock' menu # 3-Enter NCK code then validate 4-Your phone is now unlocked. How to Enter Unlock Codes on LG U8210:
1-With a not allowed sim card enter Pin code then validate, type: 277634#*# 2-Shows test menu 3-Choose sim test menu and type: 2945#*#, choose Sim Unlock menu 4-Handset shows 'Enter NCK' 5-Enter code, then hit OK. How to Enter Unlock Codes on LG U81xx:
1-To bring up the unlock menu on the phone with a SIM card, type 2945#*88110# 2-Enter the code 3-In case you need to reset the phone without a SIM card first, type 277634#*# or 47328545454#. If your cell phone is not listed, please follow instructions for LG C2000 above

If If instruction above does not help you i would strogly suggest to contact your Service Provider to provide some alternatives.


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lg-phones

this is all lg hard reset code you much enter it


LG
2945#*# - service menu (code reset)(W3000 G5300 C1200 G7100...)
2945#(*)- hold (LG 500,600)
B1200 *+pwr, 6,6,8 Service Menu
B1300 *+pwr, 1,5,9 Service Menu

Security Removing Code For Lg 8110,8120.
47328545454#
Or
277634#*#
LG
2945#*# - service menu (code reset)(W3000 G5300 C1200 G7100...)
2945#(*)- hold (LG 500,600)
B1200 *+pwr, 6,6,8 Service Menu
B1300 *+pwr, 1,5,9 Service Menu

Security Removing Code For Lg 8110,8120.
47328545454#
Or
277634#*#

U8180 old ...............49857465454#
U8180 new .............492662464663#
U8330 ...................637664#*#
U8360 ...................*6*41*12##
U8380 ...................525252#*#


ALL LG 2G : 2945#*#
8110 & 8120 : 277634#*#
U8130 & U8138 : 47328545454#
8180 old sw : 49857465454#
8180 new sw : 492662464663#
8330 : 637664#*#
8360 : *6*41*12##
8380 : 525252#*#

LG 8550 885508428679#*#
Phone
Service Menu Code

8110 277634#*#

8120 277634#*#

8130 47328545454#

8138 47328545454#

8180 v10A 49857465454#

8180 v11A 492662464663#

8330 637664#*#

8360 *6*41*12##

8380 525252#*#

8550 885508428679#*#

Phone
Unlock Menu Code

Older phones 2945#*88110#


U880
was told that unlocking code for the phone is "0794070061"
and method is to enter 142358#*#
but when i enter above code instead of asking for nck code it restarts(phone is temporary unlocked with sim inside).
Plz help how to unlock it permanently

Hello, LG all models test mode:
Type 2945#*# on the main screen.
2945*#01*# Secret menu for LG
IMEI and SW (LG 510): *#07#
Software version (LG B1200): *8375#
Recount cheksum (LG B1200): *6861#
Factory test (B1200): #PWR 668
Simlock menu (LG B1200): 1945#*5101#
Simlock menu (LG 510W, 5200): 2945#*5101#
Simlock menu (LG 7020, 7010): 2945#*70001#
Simlock menu (LG 500, 600): 2947#*

LG-U81XX SPECIAL CODES
Code to read phone version :
- Phone without SIM
- Enter 277634#*# or 47328545454#
- Select 'SW Ver.info'
Code to reset phone :
- Phone without SIM

- Enter 277634#*# or 47328545454#
- Select 'Factory Reset'

Code to enter UNLOCK MENU :
- Phone wit SIM inside
- Enter 2945#*88110#
Test Menu 8330 : 637664#*#
Test Menu 8180 V10a: 49857465454#
Test Menu 8180 V11a: 492662464663#
Test Menu 8130-8138: 47328545454#
Test Menu 8110-8120: 277634#*

Hope this helps.

If you are helped you can rate on the 4 thumbs and leave a short comment,because,
this is the free side and I can get the chance, to help people like you .
Thanks for using fixya .

Hello,
Please back up every thing
LG all models test mode:
Type 2945#*# on the main screen.
2945*#01*# Secret menu for LG
IMEI and SW (LG 510): *#07#
Software version (LG B1200): *8375#
Recount cheksum (LG B1200): *6861#
Factory test (B1200): #PWR 668
Simlock menu (LG B1200): 1945#*5101#
Simlock menu (LG 510W, 5200): 2945#*5101#
Simlock menu (LG 7020, 7010): 2945#*70001#
Simlock menu (LG 500, 600): 2947#*

LG-U81XX SPECIAL CODES
Code to read phone version :
- Phone without SIM
- Enter 277634#*# or 47328545454#
- Select 'SW Ver.info'
Code to reset phone :
- Phone without SIM

- Enter 277634#*# or 47328545454#
- Select 'Factory Reset'

Code to enter UNLOCK MENU :
- Phone wit SIM inside
- Enter 2945#*88110#
Test Menu 8330 : 637664#*#
Test Menu 8180 V10a: 49857465454#
Test Menu 8180 V11a: 492662464663#
Test Menu 8130-8138: 47328545454#
Test Menu 8110-8120: 277634#*

Hope this helps.

If you are helped you can rate on the 4 thumbs and leave a short comment,because,
this is the free side and I can get the chance, to help people like you .
Thanks for using fixya .

1-Press 277634#*# phone will enter Service Menu
2-Select GCF Setting
3-Select GCF On
4-Phone reboot and unlocked working with any sim

Note:This Solution working with only old firmware version

Phone lock,user code
- Press 277634#*# phone will enter Service Menu
- Select Factory reset
- Phone reset and reboot
- Phone unlocked (All phone defaul setting).

Unlock LG KH1800
- Press menu - 0 (hold) enter code: 147359
- Phone enter Service menu
- Select GCF Test - Select Rel.99 or Rel.15 phone reboot and unlocked

If you need to enter the service menu it is done with a special remote called a servicer's remote. Just press the INSTART button.

If you do not have one you can enter the menu by pressing the MENU button on the actual TV (or ENTER, OK) and at the same time press the MUTE button on the remote control.

Hope this helps, please rate my solution.

Hi,

If it's the childlock, you can change that in the menu.

cheers, Gerard