Use the widget for checking the HTC unlock code to check the database from which it's necessary to order the network unlock code. It's sufficient to open the link, enter your IMEI and you will see by which database you have to place an order.
Use this service to unlock HTC phones if in the previous databases you got the answer "No code in database" for your IMEI.
Keep in mind that orders are processed on the basis of need more time, result is as before will get an email.
Order unlock from the operator USA T-mobile with support Device Unlock App here
It's possible to unlock one! HTC phone or tablet locked under any operator for free if it's not listed among the available for the unlock devices down below the page. To do so, you would just have to register on the website, then create a topic on the forum. Specify in the topic the following: your login on the IMEI website, IMEI, model, device type (phone or tablet), country/operator under which it is locked, take the screeshot when the device asks for the code with the foreign SIM card, and take a second photo of the back side of the device (under the battery). Thus, the topic should include 2 photos, upload those photos on any photo sharing server, Fotolink.su for instance, and insert the link in your message. After you create the topic, you will see there appearing buttons to socials (facebook, google+, twitter, VK, yandex, LiveJournal). You will have to make 3 reposts of your choice (specify the links to your "socials" in your message having closed them with tags), then send e-mail to email@example.com specifying the link in your message to the topic on the forum.
List of HTC phones support for unlock by database Not found:
7 Trophy, Explorer, Rhyme, Smart, Sensation XL, HTC One S, HTC One X, HTC One V, ONE M9, One M8s, HTC Windows Phone 8S
List of popular operators are locked in the smartphone HTC:
United Kingdom T-Mobile, USA T-mobile, USA AT & T, France Orange, Australia Vodafone France, SFR, UK Orange, Spain Vodafone (Airtel Movil), Spain Movistar, Etisalat Egypt, Canada Rogers, Poland Orange, Angola Unitel, Germany O2 , USA Verizon (GSM), Netherlands Vodafone, UK O2
and so on ...