How to do Passcode/Disable iCloud Removal iPhone and iPad
 1- Download Tool 
Download the Bypass Tool and Jailbreak your device.
Passcode FMI: OFF Tool Here
Jailbreak Here

2- Place Token Order
then order token. 

3- Do Passcode FMI:OFF
If your device iCloud password has not been changed by old owner, your Passcode order will be successful and device iCloud will be FMI:OFF.

Some Errors and Solutions

Error: Failed to Remove iCloud Error: 401 account data changed

Why You Get: This error you get because iCloud Password changed from old owner.
Solutions 1: You can use Passcode/Disable Bypass Service.
Solutions 2: If your device no have Meid number, you can use Bypass Service after restore your device.

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Error 1: Error your request can't be generated
Error 2: Error your request can't be generated ReferenceID 

Why You Get: Because you using old Passcode Removal Tool.
Solutions: Download new tool. ( Passcode FMI: OFF Tool Here )