hello so i have a a1398 9 beeps i think its bios.. took out chip and did backup here it is.. dont know what emc it is bc the back cover isnt original .. its a1398 2015 i believe and board number 820-00163-a attached is the orignal efi dump
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Re: Need clean bios for a1398 i believe 2015 here is original bios backup
it says file is larger then the ic?Comment
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Re: Need clean bios for a1398 i believe 2015 here is original bios backup
i changed to 16mbyte/128mbit since chip is 16mb , is that ok? it flashed fine and no errors.. But i put it back on the board and no beeps now but just black screen and fans come on for 10 sec or so and then go off. will bloated battery cause no boot ? i tried unplugging battery and just leave charger and still same thing.. tried without ssd same issue. I did solder the chip backwards the first time lol will that damage the chip? i put it back on the reader and read it fine. im assuming the ic is good?Comment
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Re: Need clean bios for a1398 i believe 2015 here is original bios backup
it worked after i choose 8mbyte/64bitComment
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hi i have a macbook pro 15 i believe 2015 a1398 from the looks of the bios chip and board layout. Well it has 9 beeps and doesnt turn on..ive heard it the efi bios chip? is there preprogramed chip that i can buy or do i have to reprogram the ic ? i did buy a efi reader and bios chip that looks little diff ( has legs like for the 2014 a1398 efi ) the one i have is newer flat type smd .... -
Recently I used the official Lenovo bios updater software on my ThinkBook 13s G3 ACN (20YA0005GE). The updating process failed and I got a black screen after powering the device. Of course I did not make an own backup before using the Lenovo bios updater.
I bought a CH341A programmer and was able to make a connection to the chip while it is still soldered on board. But I did not realise that the chip was a 16MB size and selected the wrong size (8Mbit / 1 MByte) before reading the content of my chip. So the dump I did before erasing the chip is only 1MByte big. I fear that I lost... -
Hello,
i hope to find help her in the forum. It is a littlebit tricky. I searched many Days about disabling IntelME that was may major task. So i have a Clevo PD50PNN motherboard.
At first i tried to Backup the BIOS with tools direcly from Windows(normaly i am a Linux user). But no full success because not every part of the bios was readable. So i bought a modified CH341a for a Backup.
Backup worked but since the backup the Laptop is not booting anymore. I flashed the newest Version oft the BIOS with success, verfiy everything ok.
But the... -
Hello, I have an old Dell G3 3579 (ST: 2WQ7LP2-8FC8) with a newer 8FC8 BIOS password. I have successfully attached to the flash chip (W25Q128JVSQ) on the motherboard with a CH341A programmer and made several modifications using Intel FIT (e.g., allow software SPI write) without bricking. I was also able to boot to a modified GRUB shell where I attempted to edit many BIOS security related options like BIOS Guard/Lock, Flash Signature Override, ME FW Image Re-Flash, etc.
Unfortunately, some of these modifications like to Intel BIOS Guard failed because it is fused into the PCH. Also,... -
Hello,
I have a Lenovo Thinkbook 15 G2 ITL i5 Laptop (serial number: MP2BFZEF) that when I turn it on, the led on the power button lights up for 5 seconds, then goes out. There's no display and nothing happens.
So I thought it was a Bios problem.
I found 3 bios chips on the board, which I read with a bios programmer: two XMC model bios chips and a Winbond model bios chip. Each XMC model bios chip has two partitions named XM25QH128A [3.3V] and XT25F128A [3.3V]. And the Winbond model bios chip has three partitions named W25Q80BL 3.3V, W25Q80xV 3.3V and W25Q80DV 3.3V....
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