Philips 32PHT4001/60 Service Manual page 24

Software update menu will pop up when press confirm key, then select "Yes" to confirm:
The process of software updating:
Method 2：Keep pressing VOL+ key on the machine panel, power on the machine, the standby light flashes quickly after
about 5 seconds, standby light extinguish and turn into lighting after about a minute, means that the upgrade is completed.
3.3. Notice：
①. When the machine Upgrading (U disk light flash), do not remove U disk or switch off the power, otherwise it will
destroy the software and lead can not upgrade.
②. The machine must be power off when inserted or pulled out U disk, to avoid U disk or damage the machine.
4、When cannot upgrade in accordance with the step two, or upgrade failed, can only ISP upgrade, please refer to the
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