Chuwi hi12 dead after firmware update

[Vicente]

Your Chuwi is dead.

What is your model? Chuwi HI12 Z8300 or Z8350?

I think that you flashed a bad BIOS.

For this reason you must flash your Chuwi by hardware. I made last weekend, it’s not difficult, but you must shop a programmer, adapter to 1.8V, Torx nº4 and clip chip.

[L.K.]

Thanks for your answer. I have the Z8300

I used a file called Lateset Dualboot Hi12 BIOS（remain KEY, solve wifi disconnet issue).rar

[Vicente]

You must download:

https://techtablets.com/downloads-drivers-roms/Chuwi/Hi12/#wpfb-cat-151

• Bios ( https://techtablets.com/downloads-drivers-roms/Chuwi/Hi12/Dual%20Boot%20Bios%20Updates/#wpfb-cat-173 )
• Android OS
• Windows 10 OS
• Drivers ( https://techtablets.com/downloads-drivers-roms/Chuwi/Hi12/Windows%20Drivers/#wpfb-cat-152)

You must shop:

• Programmer for CH341 24/25 (1.96 €)
• 1.8V adapter spi flash sop8 DIP8 W25 MX25 (2.62 €)
• Clip SOIC SOP8 EEPROM 93CXX/25CXX/24CXX (2.54 €)
• Flexsteel 10 unid CR-V Torx (T3 T4…..) (1.59 €)
• Electric welder (soldering iron) 40W max. (about 12 €)
• Tin reel

Procedure is related in:

Bricked trying BIOS update

And PDF Instructions:

Bricked trying BIOS update

 

Good Luck….

PD (reprogramming Bios is very very slow…. about 1,5 hours, and remember too, this procedure dont work in Windows 10, you can make a virtual machine installing windows 7 (32bit) Withh VMWare)

[JMMR79]

hola no encuentro la bios correcta para chuwi hi12 Q64G45171101715

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