My phone asking insert sim? - Samsung Star GT-S5233 Cell Phone

i think when you inserted a sim it is asking insert sim right?
for temporary first insert the sim card ,insert battery then put a small paper. fold it and put it ...if this doesnt works contact a repair shop

. First do a CUSTOM reset: *2767*2878# (star 2767 star 2878 hash)
turn off the phone
2. take out the battery and sim and put wrong network SIM and insert a half of it,
so it won't ask for network password and shows "Insert SIM" message.
Now put the battery ,and switch the phone on .(phone shows "Insert SIM" message.)
3.With out turn off the phone push the sim fully in. At this stage the phone is still asking to "Insert SIM"
4. Make a FULL reset by typing: *2767*3855#(star 2767 star 3855 hash)
5. The phone should reboot working with "wrong" sim inside.
6. Make a Change the NCK password to 8 zeros by typing: *7465625*638*00000000*00000000#
(star 7465625 star 638 star 8zeros star 8zeros hash)
7. Now Disable network lock By typing: #7465625*638*00000000#
(hash 7465625 star 638 star 8zeros hash)
Phone is unlocked (check with *#7465625#)

1. First do a CUSTOM reset: * 2767 * 2878 # (star 2767 star 2878 hash)
turn off the phone
2. take out the battery and sim and put wrong network SIM and insert a HALF of it, ie half in and half out and slip the battery in behind it, this is important
so it won't ask for network password and shows "Insert SIM" message.
Now put the battery, and switch the phone on. (Phone shows "Insert SIM" message.)
3.With out turning off the phone push the sim fully in. At this stage the phone is still asking to "Insert SIM"
4. Make a FULL reset by typing: * 2767 * 3855 # (star 2767 star 3855 hash)
5. The phone should reboot working with "wrong" sim inside.
6. Make a Change the NCK password to 8 zeros by typing: * 7465625 * 638 * 00000000 * 00000000 #
(star 7465625 star 638 star 8zeros star 8zeros hash)
7. Now Disable network lock By typing: # 7465625 * 638 * 00000000 #

You are trying to use a SIM from another Network or Handset but your phone is LOCKED to your old network and/or to a specific SIM card and number: this is why it is asking you for the unlock code to remove the restriction. It you are no longer under contract or obligations (such as minimum total recharge amounts for apre-paid handsets), then you could try to request the unlock code from the original service provider of your handset.
As for asking to insert SIM card, make sure that the SIM is correctly and securely inserted in your handset SIM holder. Also check that the SIM is still functional by inserting it in another handset: SIM card can be permanently and physically disabled if you attempt to enter too many consecutive invalid codes (usually around 10).
Hope it helps and good luck!

1. First do a CUSTOM reset: *2767*2878# (star 2767 star 2878 hash)
turn off the phone
2. take out the battery and sim and put wrong network SIM and insert a half of it,
so it won't ask for network password and shows "Insert SIM" message.
Now put the battery ,and switch the phone on .(phone shows "Insert SIM" message.)
3.With out turn off the phone push the sim fully in. At this stage the phone is still asking to "Insert SIM"
4. Make a FULL reset by typing: *2767*3855#(star 2767 star 3855 hash)
5. The phone should reboot working with "wrong" sim inside.
6. Make a Change the NCK password to 8 zeros by typing: *7465625*638*00000000*00000000#
(star 7465625 star 638 star 8zeros star 8zeros hash)
7. Now Disable network lock By typing: #7465625*638*00000000#
(hash 7465625 star 638 star 8zeros hash)
Phone is unlocked (check with *#7465625#)

when you insert sim in your phone after using it offline,it should ask you if you want to continue using your phone in offline mode...select NO..Otherwise your phone cannot detect the sim card..clean sim terminals..if problem persists check and reheat sim filter IC..the crystal one, near the sim terminals itself..if all fails then UPP (CPU) or software problem..

"Insert SIM" message is normally displayed on phones when a SIM card is not inserted on power-on or it does not detect the SIM card inserted.

Likely Causes:

1. No SIM card inserted or inserted SIM card is damaged
2. Inserted SIM card not positioned well in such a way as to make contact with the corresponding contact bridges on phone.
3. Phone locked to a specific network and can only work on other networks when the firmware version is "flashed", that is completely changed to an unlocked version.
4. The phone might be faulty (try with another good SIM, if you still get thesame message and its not one of the above reasons... it might be a transciever problem or the phone's SIM card slot's pins might be defective).

cheers.

00000 OR 12345

your sim card broken. go to your operator office ask for sim card change.