A25 Main Board Rev:2.1 need bios.

[nesijnet]

Hello guys.
Grundig
A25 Main Board Rev:2.1
I need UMA bios file.
Thx.

This is my old bios. On password.
if we can remove the password ok.

[SMDFlea]

Re: A25 Main Board Rev:2.1 need bios.

Bios cleared . Pegatron A25 Main Board Rev:2.1

Grundig GNB 1560 1540

LG E530

[nesijnet]

Re: A25 Main Board Rev:2.1 need bios.

Bios cleared . Pegatron A25 Main Board Rev:2.1

Grundig GNB 1560 1540

LG E530

Thank you.

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

Hello friends i have same board (grundig GNB 1560 , A25 rev 2.1 Motherboard) with updated bios from 206 to 209,when on 206 bios version there were 2 problems , the 1 st. Problem was it was hanging on while bios save and exit menu after you press yes,and then the systems reboot after like 30 - 45 seconds. The second problem was when you click shut down computer on windows 7 , the screen goes black (seems as normal shut down) but never shut down and stays like that until you keep press power switch about 4 or 5 second, (until you keep press power switch the system remains working until you remove power and it consumes about and constant current like about 0.61 - 0.63A and remains until forever without battery installed and never comes to 0.02A (shut down and ready to power on stage) practically the systems sows not shuts down sand stays like that) also on windows 7 when you click restart instead of shut down it restarts but a few late or sometimes it's shut down instead of restart (goes 0.02 A stages ) also there is no any problems computer works normal and no errors or blue screens while using laptop, and the third problem was when installed windows 10 (fresh formatted) on-board intel hd graphics makes screen black when installed intel hd drivers and never comes again until you open windows 10 on safe mode and remove intel hd driver

Finally after I find and bios version 209 on an site and updated it from 206, my third problem solved (intel hd drivers works without any problems on windows 10) , but other issues are not solved (bios hangs, and not shut down problem) does it related about bios or an hardware issue?? If somebody have can please share me schematic diagram of A25 rev 2.1 board

Or any one have any idea why the system is not shut down ?? And advise an solution for it ??

[SMDFlea]

Re: A25 Main Board Rev:2.1 need bios.

Schematic requests go here - https://www.badcaps.net/forum/forumdisplay.php?f=41 ,it isn`t available anyway.

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

Schematic requests go here - https://www.badcaps.net/forum/forumdisplay.php?f=41

Thanks my friend , and do you have any idea why the issues like this?? Or what might be the problem?? Also i did not test the bios file that you attached, if i test it the problem might be solved ?? (I am affraid to lose intel hd graphics fix) and also what version is it (bios that you attached)?? And what is the final version ?? I am using 209 now

[SMDFlea]

Re: A25 Main Board Rev:2.1 need bios.

Make a bios backup first and try the bios at post #2 .The version is 208 ,there`s been 1 member so far out of 144 who downloaded it that said thanks,so i assume its working for him, everyone else has been too lazy to confirm one way or the other .

.

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

Make a bios backup first and try the bios at post #2 .The version is 208 ,there`s been 1 member so far out of 144 who downloaded it that said thanks,so i assume its working for him, everyone else has been too lazy to confirm one way or the other .

.

Ok my friend, i will test it and post the result, should I flash it with awardflasher.exe or external firm flasher (directly program to rom chip)?? , does it require the Ec programmer also or no need?? , thanks for your help

[SMDFlea]

Re: A25 Main Board Rev:2.1 need bios.

If you flashed it before with the awardflasher then it should work or flash it with an SPI programmer if you have one. Desoldering the chip is the most reliable way,but you can try it with a sop8 clip too.

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

If you flashed it before with the awardflasher then it should work or flash it with an SPI programmer if you have one. Desoldering the chip is the most reliable way,but you can try it with a sop8 clip too.

OK my friend thanks, o have spi programmer, but first will try awardflasher.exe

And post the results

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

If you flashed it before with the awardflasher then it should work or flash it with an SPI programmer if you have one. Desoldering the chip is the most reliable way,but you can try it with a sop8 clip too.

Dear SMDFea;

First, I get my dump as 2MB file size, but what is interesting is that, I checked the rom chip on motherboard and it's an Winbond 25q32bvsig , I mean it's 4mb as well, also your file is on post 2 is 4mb as well, I tried to flash it with awardflasher and it gave an error like file size does not match rom on chip is 2 mb but file is 4mb so it did not perform flashing, so what I will do now , I will take out the chip , and first will take an dump again with the spi flasher and then try to program your file on it and test it, but what is interesting that my dump is 2mb instead of 4 mb , rom chip also capable of 4 mb and computer works but can't understand why is 2 mb instead of 4 mb, do you have any idea ? And do you think that will it work after flashing 4 mb file instead of 2 mb

[SMDFlea]

Re: A25 Main Board Rev:2.1 need bios.

What model is your programmer ? , if its a CH341A try NeoProgrammer software - https://www.badcaps.net/forum/showpo...04&postcount=7 NeoProgrammer
The reason the awardflasher won`t work is because its an AMI bios ,so use your programmer .

.

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

What model is your programmer ? , if its a CH341A try NeoProgrammer software - https://www.badcaps.net/forum/showpo...04&postcount=7 NeoProgrammer
The reason the awardflasher won`t work is because its an AMI bios ,so use your programmer .

.

Dear SMDFlea;
Firstly, I thank you for your helps and efforts
I confirm that your dump file is working, I flashed it with CH341Amini programmer with Neoprogrammer without an issue, and version become from 209 to 208
The computer boots normal,but the problems remain same bios lags while save changes and exit about 15 - 20 sec and it's not restarting laptop, after selecting save changes and exit is not rebooting laptop its hangs about 15 sec and shuts down, but saving changes.
Also by this version (208) I also lost intel hd graphics driver support on windows 10, the screen goes black when logging to windows 10 , but windows 7 works fine, (did not test windows 8.1 for intel hd graphics driver issues)
Also the other problems remain same,
When you select to restart computer on windows, computer hangs a while and shuts down instead of restart, current composition is going to 0.02A and when you power it on by button, it's start windows without any issues (except intel hd graphics driver problem)
When you select shut down windows , seems shuts down everything then screen goes black and then current composition this time remains about 0.91A and hangs until forever unless you keep power switch Pressed about 4 or 5 sec or remove the power cord but before on 209 bios version current composition was about 0.61A instead of 0.91A
If you keep pressing like about 4 -5 secs then the laptop shuts down and current composition is retuning 0.02 - 0.03A , normal startup stage

This is very strange,

Are there any bios dumps that I can test ??
I don't think that it's an hardware issue, because when you restart the computer shuts down and return normal stage (0.02A) and instead of these the computer works normally, without any doubts, I have dumps as last 209 , with intel hd works on windows 10 but the others problems are same and this dump is 2 mb, instead of 4 mb

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

What model is your programmer ? , if its a CH341A try NeoProgrammer software - https://www.badcaps.net/forum/showpo...04&postcount=7 NeoProgrammer
The reason the awardflasher won`t work is because its an AMI bios ,so use your programmer .

.

May the problem is about me firmware or super io chip firmware related?? 😂🤣😅 I will get mad about this problem

Also the motherboard is good , no any water damage, broken parts or any corrosion on it 😂😂😅

[SMDFlea]

Re: A25 Main Board Rev:2.1 need bios.

Theres a 209 bios on the technopat forum,i think that was the last available bios. It only has the 2MB bios update,not the full bos.Don`t use your programmer,use the included flasher from a dos bootable drive. Thats all the help i can give you .
https://www.technopat.net/sosyal/kon...celleme.31363/
https://drive.google.com/file/d/0B4r...RRejR3eWM/edit

[SMDFlea]

Re: A25 Main Board Rev:2.1 need bios.

May the problem is about me firmware or super io chip firmware related?? ������ I will get mad about this problem

Also the motherboard is good , no any water damage, broken parts or any corrosion on it ������

The bios at post #2 has clean ME firmware. EC 209 attached .

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

Theres a 209 bios on the technopat forum,i think that was the last available bios. It only has the 2MB bios update,not the full bos.Don`t use your programmer,use the included flasher from a dos bootable drive. Thats all the help i can give you .
https://www.technopat.net/sosyal/kon...celleme.31363/
https://drive.google.com/file/d/0B4r...RRejR3eWM/edit

Thank you very much, I will try this one under bootable dos usb

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

The bios at post #2 has clean ME firmware. EC 209 attached .

How to reprogram EC ? , can I program it with Spi flasher?? Because I don't have special EC external programmer

[meraklinetx]

Re: A25 Main Board Rev:2.1 need bios.

The bios at post #2 has clean ME firmware. EC 209 attached .

Can I use CH341A to program EC ?

[SMDFlea]

Re: A25 Main Board Rev:2.1 need bios.

Can I use CH341A to program EC ?

If the EC is stored on an external chip you can program it with the CH341A , don`t ask where it could be though i don`t know.