YEPO 737A running Jumper EZbook 3 Pro v4 Bios

[Alberto]

Hi i’ve just got a 737A with bios rev:

BIOS Date: 11/07/2018 10:07:49 Ver: 3BANS010

and i think it’s a late revision. (and a beta one, because on boot it writes “EVALUATION COPY”)

 

i d’like to have unlocked features ’cause my 737A is sold with 256GB SSD and i’m sure the 64GB eMMC is still on the board but disabled in bios so i want to enable it to get a second linux drive.

Can you share what are the menu ID you’ve enabled?

 

thank you

 

[Vassilis]

AfuEfix64.efi jumper.rom /P /B /N /reboot 

 

I run this command and my YEPO is dead

 

 

Help meeee

[Hodin]

Vassilis wrote:

AfuEfix64.efi jumper.rom /P /B /N /reboot I run this command and my YEPO is dead Help meeee

You need to flash your bios chip from a programmer box through SPI bus… You can also use a Raspberry Pi with the flashrom utility package on the SPI bus… I have done this on some corrupted bios chips I had to recover…

My first advice is to not alter your bios if you are not confident in what your are doing and not aware of how to do it the safe way !

 

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[Vassilis]

Can I flash my BIOS chip with CH341A?

Do someone knows how to use it?

Does YEPO or ez book 3 have CMOS battery?

[Hodin]

Vassilis wrote:

Can I flash my BIOS chip with CH341A? Do someone knows how to use it? Does YEPO or ez book 3 have CMOS battery?

It should be possible with CH341A, but never used it so for 5 bucks, you should give it a try… There is no cmos battery, the main battery cable is maintaining settings, disconnect it and you will have your bios reset…

Try to locate your chip and find the datasheet for it… Pinout is very important to not destroy the onboard chip with bad voltage input… If you don’t have skills to rework your board on failure with a new chip and a hot hair station, take care of it ^^ Common brand is Winbond or so… Good luck…

@+

[Vassilis]

Hodin wrote:

Vassilis wrote:

Can I flash my BIOS chip with CH341A? Do someone knows how to use it? Does YEPO or ez book 3 have CMOS battery?

It should be possible with CH341A, but never used it so for 5 bucks, you should give it a try… There is no cmos battery, the main battery cable is maintaining settings, disconnect it and you will have your bios reset…

Try to locate your chip and find the datasheet for it… Pinout is very important to not destroy the onboard chip with bad voltage input… If you don’t have skills to rework your board on failure with a new chip and a hot hair station, take care of it ^^ Common brand is Winbond or so… Good luck…

@+

My BIOS chip

AE1732

25LB64CWIG

Look at the attached pictures

What is the Winbond?

What .ROM or .BIN version of BIOS to use?

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[Hodin]

Grrrrrr ! Cannot post !

Cannot answer, my post is not accepted on the forum !!! Pfff !!!

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[Hodin]

See my attachment in the precedent post and answer on the picture here ^^

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[Vassilis]

Hodin wrote:

Grrrrrr ! Cannot post ! Cannot answer, my post is not accepted on the forum !!! Pfff !!!

Thanks a lot

I will use those on the attached photos

CH341A and a 1.8 V adapter

But how to program my chipset ?

Which program and which file to use?

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[Hodin]

Use drivers and soft in zip files attached or ask for particular softwares from the vendor you will buy the adapter from ^^

@+

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[Vassilis]

Hodin wrote:

Use drivers and soft in zip files attached or ask for particular softwares from the vendor you will buy the adapter from ^^ @+

Thanks for your help

But I need also the ROM or BIN file to load / program  to my BIOS chipset

Do you know where to download it?

Can someone help me?

I have YEPO 737A which is the same as jumper ezbook 3 pro

Is there any YOUTUBE video to see how to do this?

[Hodin]

Vassilis wrote:

Hodin wrote:

Use drivers and soft in zip files attached or ask for particular softwares from the vendor you will buy the adapter from ^^ @+

Thanks for your help But I need also the ROM or BIN file to load / program to my BIOS chipset Do you know where to download it? Can someone help me? I have YEPO 737A which is the same as jumper ezbook 3 pro Is there any YOUTUBE video to see how to do this?

Go to my Drive folder, you have original and modded bios there : https://drive.google.com/open?id=1NDw2nXCUaaIh1uRSG9W8PMrispqMlvuS

1st page you have the link to 737A_DRIVERS in my 1st post… You have all drivers and bios files related to the 737A I found on the web…

@+

[Vassilis]

Hodin wrote:

Vassilis wrote:

Hodin wrote:

Use drivers and soft in zip files attached or ask for particular softwares from the vendor you will buy the adapter from ^^ @+

Thanks for your help But I need also the ROM or BIN file to load / program to my BIOS chipset Do you know where to download it? Can someone help me? I have YEPO 737A which is the same as jumper ezbook 3 pro Is there any YOUTUBE video to see how to do this?

Go to my Drive folder, you have original and modded bios there : https://drive.google.com/open?id=1NDw2nXCUaaIh1uRSG9W8PMrispqMlvuS @+

Thanks a lot

So in the software of CH341A there is an option to program the ROM file you gave me ?

Is there any YouTube guide to help me?

[Hodin]

Vassilis wrote:

Hodin wrote:

Vassilis wrote:

Hodin wrote:

Use drivers and soft in zip files attached or ask for particular softwares from the vendor you will buy the adapter from ^^ @+

Thanks for your help But I need also the ROM or BIN file to load / program to my BIOS chipset Do you know where to download it? Can someone help me? I have YEPO 737A which is the same as jumper ezbook 3 pro Is there any YOUTUBE video to see how to do this?

Go to my Drive folder, you have original and modded bios there : https://drive.google.com/open?id=1NDw2nXCUaaIh1uRSG9W8PMrispqMlvuS @+

Thanks a lot So in the software of CH341A there is an option to program the ROM file you gave me ? Is there any YouTube guide to help me?

Google it, you have plenty of tutorials about it… You can flash directly the yepo rom file at address 00000000h (0h) of your chip with some software tools (SPI tools) and the usb programmer… The rom file is compatible with the GigaDevice chip as shown in the Intel ME VSCC table in the rom (see attached picture)… There is no AMI capsule on it so you can directly write this rom file as is on your chip…

You can try flashrom from a linux distro to do it easy if the chip is compatible… You should try to write it with the Winbond chip with the -c setting if it is not, that should work because it is supported in the VSCC table…

https://www.flashrom.org/Flashrom

You can see me using it in my attachments in the post here : https://techtablets.com/forum/topic/yepo-737a-running-jumper-ezbook-3-pro-v4-bios/page/4/#post-151789

@+

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[Hodin]

https://www.flashrom.org/Supported_hardware#Supported_flash_chips Use GD25LQ64 settings with flashrom, it is supported… and -p ch341a_spi (–programmer command option) for the usb tool…

For the next steps, try to google them a few… Bye…

Read a few here : http://www.xtremesystems.org/forums/showthread.php?293149-Guide-EEPROM-Programming

Watch this :https://www.youtube.com/watch?v=2Y06x1f22B0

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