system/HTTP/UserAgent.php
protected function setMobile(): bool
	{
		if (is_array($this->config->mobiles) && $this->config->mobiles)
		{
			foreach ($this->config->mobiles as $key => $val)
			{
				if (false !== (stripos($this->agent, $key)))
				{
					$this->isMobile = true;
					$this->mobile   = $val;

					return true;
				}
			}
		}

		return false;
	}
protected function setMobile(): bool
	{
		if (is_array($this->config->mobiles) && $this->config->mobiles)
		{
			foreach ($this->config->mobiles as $key => $val)
			{
				if (false !== (stripos($this->agent, $key)))
				{
					$this->isMobile = true;
					$this->mobile   = $val;

					return true;
				}
			}
		}

		return false;
	}
Set the Mobile Device

@return boolean