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For some Batch Rev2.0 can not update new bootloader to Rev2.3 via one-key upgrade tool, so we stop the support for the Rev2.0 controller upgrade.
The Rev2.0 user can get the 30% discount when buy the Rev2.3. (only one time)
Please Provide the Rev2.0 “old order number” after you buy it ( to support@pibot.com), we will check and refund to you the discount.
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FOR Skill people , we provide some hacker idea, but we donot proof it will success, the support is limit
https://www.pibot.com/forum/viewtopic.php?f=2&t=34