December 14, 2016 at 10:49 am #58605
Hi, I have an Hi8 Pro single boot that I tried to flash the dual boot bios a few months back and bricked it.
Where can I find an image to restore the bios with an SPI programmer? The tablet’s S/N ends in 4136 and the bios chip is a Winbond 25Q64.
I’m desperate, this has been a paperweight for so long, I used it only for a week, any help is greatly appreciated.December 14, 2016 at 11:21 am #58609December 14, 2016 at 12:18 pm #58613
Can I use the 8MB file from the bios update zip?December 14, 2016 at 1:17 pm #58622
Would be useful to know all numbers apart from the last four in order to determine BIOS version needed.December 14, 2016 at 1:35 pm #58624
PQ32G22151104136December 14, 2016 at 3:02 pm #58629
Could someone with an SPI programmer dump the bios image?December 14, 2016 at 9:03 pm #58653
My tablet is in the same batch as yours. You can find Chuwi recommended BIOS for (y)our serial number here:
Personally, I had a pro put May BIOS for Dual OS Hi8 Pro. Since I did that it works amazingly good – running Build 14393.447.
Unfortunately, I sacrificed bluetooth due to drivers issue. So my solution is not for everyone.December 14, 2016 at 9:30 pm #58654
Do you have an SPI programmer?December 15, 2016 at 12:01 pm #58725
No, I like I said, I gave it to a pro to do it.December 15, 2016 at 11:02 pm #58758
I need to use the 8MByte .rom file from the bios update zip as it is the full bios image, but what will happen to the Windows product key (MSDM) stored in the bios?December 15, 2016 at 11:42 pm #58762
And which 64-bit bios is safe to flash on the first batch of the singleboot Hi8 Pro?December 24, 2016 at 12:14 am #59162shinebarParticipant
- Posts: 3
I had the “black Screen, no LED, noch charging” – issue as well (S/N PQ32G221604) and just programmed the bios with the SPI-adapter. First the official Bios from the Chuwi-Forum, after that the one with the fix for the SD-Card. Both doesn’t change a thing – any hints for me?
Battery is 3.7 Volts (when disconnected from the Mainboard). USB-Current is arround 0.15 Amps @ 5.1V when plugged in, but no led etc.January 9, 2017 at 11:05 pm #60184
I managed to unbrick it.
First press Erase, then press Blank to verify the chip is empty, then load the 8MB file from the bios update zip and press Program.January 10, 2017 at 9:17 pm #60241shinebarParticipant
- Posts: 3
I managed to unbrick it. First press Erase, then press Blank to verify the chip is empty, then load the 8MB file from the bios update zip and press Program.
Hm. Tried that again, Erase, Blank, Write, Verify without any Errors – no sign of life until now. I think I’ll leave the tablet on the charger for some hours.January 11, 2017 at 10:15 pm #60284
Maybe you’re not using the correct bios. Do you have a singleboot Hi8 Pro?
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