Question about Samsung SYNC SGH-A707 Cellular Phone

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I had At&t service and then i got it turned off so i got a tmobile chip and i put it in my phone and it asked for a network key. and then i put in 2 many attemps so now it says phone freeze sim unavailable please contact service provider and i dont know what 2 do because i cant find any unfreeze code so please help

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Posted on Jan 02, 2017

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SOURCE: I have the same problem with the samsung enternity SGH-A867

Hello Djnyc2468,

Well your best bet is to contact your service provider the one whom originally provided service for your phone (AT&T).

They will have to help you unlock that phone as that model is not covered by the cell phone unlocking program that I would normally use to generate a code.

If its the new tmobile sim card that has been blocked you will need to contact Tmobile to help unlock it.

Post back if you have any further question's or comment's. I will be happy to assist you further. Thank you for choosing Fixya!

Posted on Aug 23, 2009

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Important: Stop if you receive an error message. The device may lock permanently if you enter the incorrect code multiple times.
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  3. Verify the IMEI by typing *#06#.
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I have the same problem with the samsung enternity SGH-A867


Hello Djnyc2468,

Well your best bet is to contact your service provider the one whom originally provided service for your phone (AT&T).

They will have to help you unlock that phone as that model is not covered by the cell phone unlocking program that I would normally use to generate a code.

If its the new tmobile sim card that has been blocked you will need to contact Tmobile to help unlock it.

Post back if you have any further question's or comment's. I will be happy to assist you further. Thank you for choosing Fixya!

Aug 23, 2009 | Samsung SYNC SGH-A707 Cellular Phone

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Network unlock code


Is solution for a d900i

BACK UP YOUR FILES BEFORE UNLOCKING
This will also bring the phone to default settings 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#)

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Tmobile g1 smartphone


Believe them. If there is a network issue, then a tower may be down and cause signal problems.

One solution requires you to call in, ask for PDA support and have them refresh you on the network.

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