Bună!
Acest model de telefon NU are update oficial la Android 4.4 :
http://www.gsmarena.com/acer_liquid_z3-5624.php
http://www.emag.ro/......DGSRJBBBM/
Are Android 4.2 şi cu acesta va rămâne!
Oricum, poţi verifica dacă există vreun update oficial :
" Select About Phone.
Select System Update, then tap Check Now to check for updates.
Or,
Visit the Drivers and Manuals section of Acer support website.
Enter your serial number or select your product from the list.
Select the OS tab.
Click Download next to the file you want to save. Files are specific to each region.
Follow the instructions in the included PDF to install the update." - SURSA :
http://acer.custhelp.com/......smartphone
Toate cele bune.
Pai intri in Setari --> informatii despre telefon --> si actualizare software, daca iti zice ca este actualizat inseamna ca telefonul nu a primit actualizarea la 4.4.