Please contact your reseller for activation. They must add the serial number of your card to the server.
Or maybe you asking about a credits account.
Starting from 37 version of Samsung tool to repair IMEI and some other operations with phones you need to have an account with credits on it, to can authorize on the server. The number of credits in the account does not matter. It’s free, credits will not be charged.
Without this, you won't be able to use the new solution.
You can order credits from our official sellers.
If your seller is not present in the list, you buy credits at your own risk.
Do not share your credit account password with anyone else.
We recommend you to attach the credit account to your z3x card immediately after purchase.
These simple rules will help to save your time and money.
Here is reseller list :
Country: China, Hong Kong
Web https://www.imei.us . ( Instant Avalable Z3x Unlock Credits)
Country: Hong Kong and WorldWide
Web https://www.gsmserver.com . (Buy Z3x Unlock Credits Online)
Skype: gsmserver.com, sonnka123456, ventasgsm.es
Sonork: 100.85899, 100.1587356,
SimSim Electronics LLC
location: Dubai, UAE
Phone: +971 4 2727113
E-mail: hamsfazil @ gmail.com
Country: Pakistan, UAE "Dubai"
Contact person Muhammad Salman