Have you purchased the Samsung U640 Convoy phone which is locked to a particular network and country? We can provide the correct unlock for your Samsung U640 Convoy. Once the phone will be network-free you can use the default as well as other carrier SIM cards. Unlocking a device by code is the easiest method. We provide all sets of codes including NCK, SPCK, Unfreeze/MCK (if in the server only one set code will be available then you will receive only NCK code).
Unlocking of a phone/tablet by code is the one-time work. Means, every time you will change the carrier, there is no need to unlock it. Unlocking by Code does not involve any software or firmware change, means you will not lose warranty.
Depending upon the service you choose, you may get the following types of codes for Samsung U640 Convoy :
NCK – Network unlocking code is used to remove the simlock.
Unfreeze/MCK – Used to reset the unlock code counter. If you have already tried with too many wrong codes, then it will help you to reset the simlock counter. Once restriction removed, you can again unlock it.
SPCK – Service Provider Code is used to reset the second level of the lock.
If your Samsung U640 Convoy comes from T-Mobile USA or Metro Pcs USA, then before placing an order check about “Device Unlock App”. If in your phone has Device Unlock App is installed then you will not find anyplace to enter the unlock code. If you will place the order, you will still get an unlock code, but it will be useless for you and no refund will be provided. 100% refund will be provided, if code does not work, needs to provide video proof.
How long we need to wait for a Samsung unlock code?
The approximate delivery time for a Samsung unlock code is 1 to 10 days.
The average response time for a Samsung unlock code is 2 days (based on last 100 orders).
How to Unlock Samsung U640 Convoy by NCK?
1. Remove the original SIM card and insert any other operator SIM card.
2. Samsung U640 Convoy will prompt for “SIM Network Unlock PIN“.
3. Enter the NCK code which is provided by unlock-simlock.com.
4. If the code is not accepted, then enter the Unfreeze / MCK code (unsuccessful message may appear).
5. Again enter the NCK or Network Unlock Code.
Now your Samsung U640 Convoy should be network free.