I spoke with my seller on aliexpress and they sent me the latest official firmware 0.31 and it's made after 14.1.1 update. Full change log here:
Change Log:
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R0.31
Fixed some console boot to OFW after system update 14.1.1
NOTE:
1. Upgrade the firmware of the chip before upgrading console to 14.x
2. If your console boot to OFW after system update 14.x, short circuit the two round holes on chipnx to restore factory setting, then update the firmware of the chip to R0.31.
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R0.30beta
1. Updated new driver for SD and DRAM.
2. Easy menu for config the chip function. There are two ways to call out the easy menu:
a. Holding VOL+ when glitch on. (Can be disabled in the easy menu)
b. Remove MicroSD card, holding VOL+ and click PWR 5 times within 10 seconds after glitch on.(Always enabled)
3. Boot to OFW by holding down VOL- when glitch on. (Can be disabled in the easy menu)
4. Auto HOS Off. (Can be disabled in the easy menu)
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R0.24
Fixed some bugs.
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R0.23
Added reset Training Data function.
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R0.22
Optimized MicroSD card compatibility.
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R0.21
Fixed the Training bug.
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R0.20
Initial version.
Also noticed there's only the firmware file inside the zip archive, bootloader is missing. Anyway nothing exciting.