Question about LG Vu CU920 Cellular Phone
If the LG VU CU920 Says Invalid Sim means it locked to network.You need to Unlock it...You can get the Unlock code from here Simpleunlocking.com/lg-vu-cu920/rs16wp9/ and Unlock it from network lock...Find the Network ,Country it locked now..Then unlock it.After Unlock it use with any GSM Network Sim card.
Posted on Feb 22, 2012
LG PC suite is really quite useless for the VU. Try using just a data cable attached to the phone and usb of your pc. The pc will identify your memory card as an external storage device and you can move your files from the card to your pc. You do nee to have a mamory card installed of up to 4 GB.
Posted on Jul 28, 2009
SOURCE: says insert smart chip
smart chip means the SIM card.
try cleaning the metallic part of the SIM card with a cloth and the metal connectors on the phone with cotton bud etc.
Put it back and try again.
If not working grab another SIM card (working - friend's etc) to test.
If still not working, send to service centre.
If working for other SIM card then replace your own SIM card.
Posted on May 29, 2009
SOURCE: my lg phone
There are several reasons for this message. Has your sim been activated by your servide provider? If not, you must call them.
Has your sim expired or been damaged in some way? If so, it must be replaced.
Have you inserted the sim correctly? The gold contacts of the card must be facing down, and the cut corner must be facing out of the card slot, pointing to the right hand side.
Do you have the right sim for your phone's cellular service provider? If your phone is locked to one provider you can't use a sim card from another provider, unless the phone is unlocked.
Hope one of these helps!
Posted on Aug 07, 2009
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