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Lg t mobile phone

Hi when i insert my sim card into my phone, the phone turns on then switches straight back off. when no sim card inserted it switches on, any suggestions :0)

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Re: lg t mobile phone

Try placing other sim card on your phone! if it still switches off, then you should send it to a service personnel!

Posted on Nov 15, 2007

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How can you jailbreak a lg g800?

ow to Enter Unlock Codes on LG KB770: Insert an original simcard and turn phone on Enter sim PIN if required Enter 2945*#770# From the menu that pops up select "SIM unlock" Enter unlock code you received and press OK The phone will then reboot and the unlock is complete How to enter Unlock Codes to LG GB250 & GB220 Power on your phone without SIM card Enter 2945#*505# From the menu that pops up select "SIM unlock" Enter unlock code and press OK The phone will then reboot and the unlock is complete How to Enter Unlock Codes on LG GT505: Power on your phone without SIM card Enter 2945#*505# From the menu that pops up select "SIM unlock" Enter unlock code and press OK The phone will then reboot and the unlock is complete How to Enter Unlock Codes on LG KP100: 1) Insert a not allowed SIM card 2) Press the unlock button 3) Enter the code OR 1. Insert allowed SIM. 2. Booting (Request PIN Code, PIN Code enable) 3. In Idle Screen, Input the hidden number (2945#*20001#) 4. Input the number (above), go back to the idle screen 5. Menu-4.Settings, 7.Security-6.SIMLock Code:-1.Network Unlock Code:-1.Deactivate: 6. Select "1.Deactivate:" Menu, Display pop up " SIM Lock Code:". 7. Input right Unlock code, Display pop up "Deactivate". 8. Reboot, and unlock simlock code How to Enter Unlock Codes on LG KF390 and KF390q: 1) Insert a SIM Card from the network the mobile is locked to and turn it on 2) Insert the following sequence *#865625#; 3) Select 'Unlock USIM' 4) Select 'Network Lock' 5) Insert the unlock code 6) Reinsert the unlock code 7) Select OK. Done! How to Enter Unlock Codes on LG Prada (e.g KE850, etc): 1. Switch the telephone on with Original SIM card inside. 2. Enter SIM pin if required. 3. Enter 2945#*8501# and press the call button (middle button bottom of the screen). 4. SIM unlock mode will appear on screen. 5. Enter unlock code 6. Select Reboot. 7. Switch phone off, and then turn back on again. Phone is now unlocked How to Enter Unlock Codes on LG KE990 / KU990 Viewty: 1. Insert original sim card and turn phone on. 2. Press telephone icon at bottom of screen to bring up the phone keypad Enter 2945#*990# 3. A menu will pop up, select sim unlock: 4. Another menu will appear, select Network lock. Enter your unlock code and press ok 5. The phone will then reboot and the unlock is complete. How to Enter Unlock Codes on LG KG245 (Vodafone Australia): 1. Insert a Vodafone Australia working SIM card. 2. Ensure the phone is charged and then switch the phone on. 3. Optional Step: If the SIM card has a PIN, enter your PIN number 4. Wait for the phone to power up then enter 2945#*7101# 5. Select Menu , then go to Settings > Security > SIM Lock > Network 6. Select Deactivate and enter the 8-digit unlocking code provide for your handset. 7. The handset will be unlocked automatically and will display "Done". This will be confirmed if you can make and receive calls with the Non-Vodafone Australia SIM card. (You will need reception and phone credit with the different network provider) How to Enter Unlock Codes on LG KG800 or TG800 Chocolate: 1. With the phone in standby, enter 2945#*7101#. This will activate the extra menu. 2. Go to: Settings>Security>SimLock>Network 3. Select deactivate. Enter the unlock code How to Enter Unlock Codes on LG C2000: 1. Insert non-Cingular SIM card 2. Power on the handset - phone will display "phone restricted" 3. Select "Cancel" - phone will display "phone restriction code" 4. Enter the SIM Unlock code 5. Select "OK" - the handset is now successfully unlocked How to Enter Unlock Codes on LG U8150: 1. Switch ON your phone with a not allowed SIM card. 2. Compose: 277634#*#. 3. Go to menu "SIM Lock". 4. Enter the unlock code How to Enter Unlock Codes on LG INCITE CT810 Power on phone with original SIM card Type 2945#*810# In the menu that appears select Sim unlock Enter supplied unlock code Your phone is unlocked How to Enter Unlock Codes on LG F2250 Power on phone with Orange SIM card inserted While in the Start menu type 2945#*3311# Return to the startup screen Press Menu key Select Settings > Security

Jun 06, 2014 | Samsung Galaxy S GTI9000 Smartphone

1 Answer

How to switch from offline to online

Offline mode only appears if the mobile phone is not getting the signal from its service provider.
*make sure that the sim is properly connected*reseat the sim card from the mobile phone*check account status for signal and connection availability*power cycle mobile phone
1. turn off mobile phone2. remove phone battery3. remove memory card4. remove sim card5. wait for 2 minutes before plugging back anything6. after 2 minutes, plug back battery7. insert memory card properly8. insert sim card properly s well, make sure that the sim is not dirty as well9. turn on mobile phone10. check the signal bar, it should be with signal this time and not offline
*after power cycling, phone should be working properly now unless the sim card is really faulty. you check if its faulty by calling your mobile service provider*

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1 Answer

Insert smart sim

Insert sim error happen if the phone is not acknowledging the existence of sim card inserted in the phone.

1. Check if the sim is properly inserted.
2. Turn off mobile phone
3. Remove battery
4. Remove memory card
5. Remove sim card
6. Check the copper pins of the sim if there are dirts stucked on it
7. Ure clean cloth to wipe sim gently
8. Wait for at least two minutes
9. Gently and properly insert the memory and sim card
10. Insert the battery
11. Turn on mobile phone
13. Check if you will still recieve insert sim error
14. If you still recieved the same error you need to call your service provider and check the status and availability of your sim card.

Dec 09, 2011 | AT&T LG CU720 Cell Phone - Silver

1 Answer

When i switch on the mobile it shows insert sim card

if you sim card is already in there try putting it back in there may be you inserted in the wrong way.

May 14, 2010 | Cell Phones

2 Answers

Will a boost mobile sim card from prepaid phone work in my unlocked lg vu

Yes it should if the LG mobile phone is unlocked. If not, when you insert the Boost SIM card in the LG it will ask for a Secutity Code.
If the SIM card won't work in the LG, please get back to me.

Jan 30, 2010 | LG Vu CU920 Cellular Phone

2 Answers

I changed sim card, now they both display ''Insert SIM''

try taking out both cards and popping the battery on the phone.

Wait a few minutes and then turn the phone on with no card in it.

Turn it back off when it says no card found and insert the newer card and power it back up.

It seemed to keep a memory of the blank card.

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1 Answer


It means you need to insert a sim card into your phone if you have not.
I hope this helps!!!

Dec 15, 2008 | LG KG800 Cellular Phone

3 Answers

I need unlocking lg u890

i had a lg u890 mobile phone that i got unlocked but it had the same proble where i swithched on my phone it used to ask for the usim old phone was locked to the 3 nt/wrk i got it unlocked so i could use my 3 nt/wrk sim card or any network simcard but i used vodafone 3g sim card.the code i used with my vodafone 3g network simcard in phone when switched phone on & it asked for usim sim code i inserted code i got & it shut the phone down then on again then it wld work with vodafone no bother at all it even came up with vodafone uk etc.but i had to reconfigure the sms/text telephone number aswell as reconfigure the mms settings & numbers etc aswell as reconfigure wap settings from 3g network to vodaphones.but after i got it all unlocked & settings changed etc & inserted a different 3g network simcard ie vodaphone/orange/o2/3g sim/t-mobile/tesco sim/virgin sims & switched phone on it asked for usim code i tryed the code i have & inserted the same code i have it/they switched phone off & then back on & all network usim card worked with no problems at all.the code i have is.>>> 142358#*# thats 142358# * # all 1 item/action.once you insert that 142358#*# thats it your phone will shut down then restart up & go onto the network usim card you want to use or inserted before using code.but 1 thing tho please remember if u switch off your phone or your phone switches off as batterys run out no power u will need to insert the code again.& another thing code wont work if your phone switches off or you switch it off & plug your mobile battery charger into phone to charge your battery up on the phone & you switch you phone back on when you are charging your phone as the phone will switch on & say insert usim code if you enter the code the phone will switch off & back on again but it will still request usim you will have to wait unto there is plenty of charge in the battery to take phone off charge & swithch your phone on get the usim code message insert code above phone will switch off & straight back on again & then it will go onto your prefured usim card then you can plug your charger into phone again to charge phone can use your phone on charger when u have entered usim code & it switched off & on again & registered with the prefered network.i hope this is of use to you as it is to me.if you try this code & either if it works or not please can you let me knows

Oct 07, 2008 | LG enV VX9900 Cellular Phone

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