9.1. How to offline upgrade system for Neo 3 series

There are two methods:

  • Method 1 – Upgrade via Internal storage :

1. Create the “dload” folder in the internal storage;

2. Copy the ROM package to the “dload” folder (do not decompress the zip package);

3. In the bottom right corner of Settings, click “Check PUI Update” → “Offline Upgrade”.

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  • Method 2 – Upgrade via U Disk :

1. Obtain the PUI system upgrade package (Pico support staff will provide the specified version upgrade package according to requirements);

2. Prepare a USB flash drive with Type-C port; or a Type-C conversion interface and a Type-A USB flash drive；

3. Create a new “dload” folder in the root directory of the U disk；

4. Copy the ROM package to the “dload” folder (do not decompress the zip package);

5. Insert the Type-C port of the USB flash drive into the device, or insert the Type-A port USB flash drive into the device through Type-C conversion interface；

6. In “My Applications” → “System Update”, click “Offline Upgrade”.

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Note： During the upgrade process, ensure that the power of the device is more than 40%; the system can only be upgraded from the lower version to the higher version; the upgrade process is 3-5 minutes.