Bricked BIOS

[Matúš Pös]

Hey guys, I managed to brick my bios. I tried to install new BIOS, but i chose bad version. My tablet has A5C6 and i tried to install a5c8. Any idea on how to unbrick it ?

[deadby15]

I did exactly the same thing, and had to send the tablet back to China so it could be reflashed. (-_-)

[Matúš Pös]

deadby15 wrote:

I did exactly the same thing, and had to send the tablet back to China so it could be reflashed. (-_-)

Thanks for reply. How much did the reflash cost ? Do you think I could somehow blaim it on “bad windows update”or something like that 😀 ? Or would i have to cover the costs ?

[Iñigo Martinez Lasala]

You have to buy a CH341a programmer with a clip and reflash the chip manually from a PC. No need to remove BIOS chip from tablet but you have to desolder battery pins.

There is a post in this forum about BIOS mod where I tell my (successful) experience reprogramming BIOS.

http://techtablets.com/forum/topic/bios-mods-whos-game/page/3/

[Nicola]

inigo-martinez-lasala

Did you tried to change bios settings in order to activate OTG Charging and other stuff?

[Matúš Pös]

Nicola wrote:

inigo-martinez-lasala Did you tried to change bios settings in order to activate OTG Charging and other stuff?

Could you give me more info please? I cant even turn it on .

[Iñigo Martinez Lasala]

Matúš Pös wrote:

Nicola wrote:

inigo-martinez-lasala Did you tried to change bios settings in order to activate OTG Charging and other stuff?

Could you give me more info please? I cant even turn it on .

 

You have to open physically the tablet and reprogram BIOS flash chip with a flash programmer and a clip. It’s not very expensive. About 20-30 USD/Euro.

 

[Iñigo Martinez Lasala]

Nicola wrote:

inigo-martinez-lasala Did you tried to change bios settings in order to activate OTG Charging and other stuff?

Yes. In fact only unlocking hidden BIOS settings to test from BIOS menu.

[Nicola]

hope you can enable OTG charging… would be very useful for all of us 😉

 

[Carlos]

I have a similar situation.

I’ve received an A5C8 versión from banggood. In BIOS Setup, it said tPad 1.02 version, and in CPU-Z, it said the BIOS was from January 15th 2016.

So I downloaded that 15GB pack that there is over there, to convert A5C6 into A5C8, extracted  the BIOS update folder, copied to C: drive in the tablet, charged the tablet up to 80% at least, and began to flash it. Procedure was OK, flashing showed PASS in big ascii drawing.

After that I tried to restart the windows, and the tablet in the turning off process, began to install windows updates… The it switched of, and I cannot power it on again…

Is there any solution? from then it’s charging till it gets 100% battery.

 

Saludos.

[Author]

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