if they released a updated firmware for clones ，please share to everyone，thanksDon't even attempt it unless you want to brick your device and have a paperweight. No logical reason to even update since the only thing that is lacking is Bleem retail support. japanese_cake is already removing all protections from the retail bleems and we will be able to play them soon on the GDEMU clones.
The Chinese clone manufacturer had to customize the previous firmware to run on the clones due to slight differences in the hardware such as completly different Amtel chip model numbers as stated above, so many things were changed vs how they are in the retail version. This is why you can't simply flash them with the retail firmware because doing so will brick the device.