Unlock Sony Ericsson W810i with AT&T

Hello Readers,

Yesterday, I unlocked my W810i phone with AT&T connection. I have been with AT&T network and using this phone for more than 3 years and was legally allowed to unlock my handset. From India, I called up AT&T customer care using Skype to get the unlock code. Following are the steps:

1) Determine IMEI (International Mobile Equipment Identity) number unique to your GSM handset. Dial *#06# to get your IMEI number. IMEI number can also be found on handset near battery.

2) Based on the IMEI number, AT&T customer care found out the unlock code for my phone. They gave me a 16 digit unlock code. I am pretty positive, there are softwares that would find unlock code from IMEI number ;).

3) Turn off your phone, insert new GSM SIM card, and turn on the phone. It would give you a Incorrect SmartChip error. At this moment, simulate below key strokes

  • Push left arrow
  • Push * key twice
  • Push left arrow

4) Then you would see Personalize menu, and you are given the option to Select

  • Network
  • Network Subset

5) Select first option Network. You will be prompted for NCK number. Push in the 16 digit unlock code and then push OK. Boom, you will see settings with new GSM SIM card you inserted.

P.S. Be careful while entering NCK number. You only have 5 chances to unlock phone.  Also, don’t select Network Subset option in Personalize menu. It will prompt you for NSCK number and feeding in your unlock code will not unlock your phone.

Thanks for reading this post.


About Badal Chowdhary

I am a Software Engineer by profession. I have done SCJP and SCWCD certifications. Like working on cutting edge technologies and frameworks. Driven by challenges and fascinated by technology. I love playing and watching sports: Cricket, Ping Pong, Tennis, Badminton, Racket Ball and Gym.
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