If you want to get the unlocking code for your ZTE Z855 Avid 4, we recommend you to contact to the original carrier, because it is the only way to obtain the SIM network unlock PIN for free. You must know that you need to fulfill the carrier's requirements, such as being the cell phone plan owner. At Movical.Net we know that sometimes it is complicated to fulfill these requirements, if your device is a second-hand phone or if you are in another country it will be a really complicated task.
The fastest method to obtain the unlocking is ordering in our website, when other SIM cards are inserted, and your ZTE Z855 Avid 4 asks you for the code; you must fill out the questionnaire and in a few hours you will receive an email with the unlock instructions.
We must indicate that sometimes the unfreeze MCK code is needed (when attempts are wasted, the mobile will prompt the - SIM network PIN blocked. Enter SIM network PUK - ). Other different case, is if you need to use your phone in a different continent, in this case it will be requested the regional code RGCK, you should not worry, our company already knows these cases and always send you the necessary codes for a perfect unlock.
No, once a ZTE is unlocked, it will be never relocked again, so you can update the firmware without any trouble.
You can use your Z855 Avid 4 with any SIM card from United Kingdom and abroad, such as 3 Hutchison, O2, Orange, T-Mobile, Tesco Mobile, Virgin Mobile, Vodafone, EE, BT Mobile network providers.
When a Z855 Avid 4 does not reject your new SIM card but does not allow you to make calls, it is most likely that the IMEI has been blacklisted. You need to contact with the carrier to solve it.
1. - Make sure you have an active data connection via 3G/4G/LTE or Wi-Fi.
2.- From the Application list, tap Device Unlock, the application is located in the MetroPCS or T-Mobile folder.
3.- Choose the Permanent Unlock.
4.- Restart the device.
"My ZTE was unlocked! thanks"
"I am very happy. good company"
"thank you for your services . it took 9 days but it was good to wait i will continue using your services and again thank you"
"I can solve my firmware problem! Great job!"
"Very good and the code works perfect "