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We've got you covered! Download a free PDF copy of the Acer Liquid Z4 user manual here.
Acer backs up the Liquid Z4 with a 1 Year parts & labour warranty.
If your Liquid Z4 has problems and is still within its warranty period, you could contact Acer support or the retailer you purchased the phone from. You'll find Acer's contact information here. If your phone is off warranty and needs repair for a physical problem such as a broken screen or bad battery, you should visit an authorized service centre or a local phone repair shop. You can also connect with others in The Informr Community Forum to find and share answers to questions.