Welcome to Discuss Everything Forums...

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.


 

Tags for this Thread

+ Reply to Thread
Results 1 to 2 of 2
  1. #1
    Emily's Avatar
    Senior Member

    Status
    Offline
    Join Date
    May 2009
    Posts
    1,586
    Downloads
    0
    Uploads
    0

    Will an at&t SIM card work in an old cingular phone?

    I just got a new phone on at&t and I'll be going to the beach soon.. I don't want to ruin the phone so I was going to try and put my SIM card in an old phone.. but the only other phone I have is made for Cingular. The old phone is the Sony Ericsson z300a. If I put my SIM card in this phone will it still work the same? Please help me out.

  2. #2
    Unregistered
    Unregistered's Avatar
    Guest
    Do you want to use your Sony Ericsson Z300A with AT&T USA network sim card?You need to unlock the phone from current Cingular network.Otherwise it will display "Sim Not Valid" or "Invalid Sim card" message on screen.To fix this problem get unlock code from the site Prounlocking.com for Sony Ericsson Z300A and unlock it easily.I have unlocked my Sony Ericsson Z300A from same cingular USA using the unlock code from the site.

 

 

Quick Reply Quick Reply

Click here to log in


What is the number after 87?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 1
    Last Post: 12-07-2013, 01:01 AM
  2. Replies: 0
    Last Post: 09-05-2010, 06:19 AM
  3. Replies: 0
    Last Post: 08-20-2010, 11:04 AM
  4. Replies: 0
    Last Post: 04-24-2010, 01:17 PM
  5. Replies: 0
    Last Post: 04-08-2010, 10:15 AM

Bookmarks

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •