The network doesnt work when the sim card is in the phone.when u put a sim card the network doesnt appear

SOURCE: Can't register network in my Sigmatel dual sim card china make

Ibought the phoneSigmatel model CLX W919 from China but i am trying to connect the data cable to my computer to transffer some data but the computer is refusing to recognize the cable yet it can charge from the same cable.what can i do

SOURCE: I have a T-mobile sim and I need to unlock my Samsung SGH-D407.

WOW! what a process! I don't know how you kept track of all that but , good job! Try this. It's a maybe, but better than nothing,

TEMPORARY UNLOCK:
Put a non-accepted SIM Card and turn it on. Type *#9998*3323#. Press Exit. You will get a new menu. Select Malloc Fail.

In newer phones:
#*7337#

SOURCE: sim card not working sim works in other phone

The first thing you can do if you think there is aproblem with the phone settings is that :
Go into network setings of the phone and choose MANUAL in the Network selection. Then you can search for the Lebara network manually and select it, if it works.
Or if it doesnt work, then the phone probably might have been locked. Just check it once, using any other network simcards it your phone. If it is locked, you can easily get it unlocked in your local market.

SOURCE: my phone is unlock forsome reason i even try the sim card from the same company as my recent sim but still doesnt work, it keeps on asking for the sim lock

hello there....well its quite simple...there is nothing wrong with your phone ...its your SIM... if it is asking for a PUK (Personal Unblocking Key) code...call your subscriber and ask them for PUK code,entering this code will reset your sim
if u keep entering wrong your sim will be damaged so call them
If the error message is saying sim damaged call them and ask for a "sim replacement" you will get a new sim while you will retain the same number ,however you will lose the phone numbers and other data stored in sim,this can be free but it depends on the company and how 'customer friendly they are
Hope this helps
Cheers