20 Most Recent Blackberry BERRY Z10 16GB FACTORY Unlocked GSM 2G 3G 4G LTE MODEL NO : RFH121LW GSM 2G & 3G 850/900/2100 & 4G LTE 800/900/1800/2600 Black - Page 6 Questions & Answers

https://www.techwalla.com/articles/how-to-unlock-a-blackberry-keyboard

on older blackberry's i know if you put wrong code in 10 times it unlocks don't know if z10 the same though

Contact t service provider and have them check the account. They may need to resend the activafion.

contact the supplier direct and ask for a warranty replacement/ repair

No...why would you do that? Blackberry has it's own "App World" All you need for your phone can be found in App World. It is the round blackberry icon on the screen. It's sometimes hidden away - you can type "Blackberry Application World" in the search bar to find it. Installing 3rd party Apps such as Google playstore can damage your blackberry\ Slow it down or worse corrupt the Blackberry OS (operating system)

Cause. The BlackBerry device is configured to only accept Wireless Markup Language (WML) content in the BlackBerry Browser or Internet Browser. The BlackBerry Browser and Internet Browser will not accept WML content through Hypertext Transfer Protocol (HTTP). Resolution. Configure the BlackBerry Browser or Internet Browser to accept both HTML and WML content. Open the BlackBerry Browser or Internet Browser. Click the trackwheel, then select Options. Select Browser Configuration. Change the Content Mode option to WML and HTML. Click the trackwheel, then click Save.

Master rest phone in settings and remove battery for three minutes. If you dont want to master reset and lose info, try just removing battery for 3-5 minutes and reinstalling.

Uninstall and reinstall the app to ensure that it is properly installed. Open your phone's advanced options and view the list of apps currently installed on the device. Highlight the Facebook app and press the "Menu" key. Click "Delete" and wait for it to finish. Once the app is removed, you can reinstall it from App World.