Blizzard Authenticator on iPhone 4

#0 - June 24, 2010, 2:40 p.m.
Blizzard Post
I received my iPhone4 yesterday and transferred everything over from my 3GS, but for some reason, the serial number on the new authenticator now starts with a EU instead of US. It associates just fine, but should I be concerned?
#8 - June 29, 2010, 1:52 p.m.
Blizzard Post
I suspect for some reason you have a 'new' authenticator. EU does designate that as a Euro version.

If it is not the same serial number, it's not going to work.

You may need help from Billing to get the old one off so you can add the new one on. If you jotted down the old serial number, that process becomes far easier.

Billing and Account Services
Phone Support - 1 (800) 59-BLIZZ (1 (800) 592 5499)
Live Representatives Available 7 days a week, 7am to 8pm PDT
E-mail Support - [email protected]
    Players in Australia should call 1-800-041-378
    Players in Singapore should call 800-2549-9273
    Players in Chile should call 1230-020-5554
    Players in Mexico should call 001-888-578-7628
    Players in Argentina should call 0800-333-0778
    All other international players should call: (949) 955-0283
#10 - June 29, 2010, 1:59 p.m.
Blizzard Post
It's fine to use.

If you took the old one off prior to changing, you should be golden.

Authenticators (either keyfob or mobile) will work in any region, not matter what region they were obtained from.