Hello
Can any one help me to identify this chip please it's 16mb but can't read it with my tl866a programmer
Can any one help me to identify this chip please it's 16mb but can't read it with my tl866a programmer
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Re: Chip eeprom not identified
Eeprom identified thank you . -
Re: Chip eeprom not identified
Make both firmware and hardware update then try. If still has the problem then try RT809f.Comment
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Re: Chip eeprom not identified
that is giga device biosComment
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Re: Chip eeprom not identified
Its nor 16mb its 2 mb bios.........foulu0238 you divided the bios ic by 8, any kind of number. example windbound 25q32f 32/8 = 4 mb , 25q64f 64/8= 8 mb................
Second if you can not find specific model of bios .......you write any one model of same mb . example winbound 25l80f , eon 25fv, Mx 25l80f
Enjoy your Engineering .................Comment
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This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.
There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as... -
Adding chip support is quite easy,there`s even some instructions included with NeoProgrammer,although its not obvious where they are
and once you do find them there`s a few crucial steps missing.
Extract chiplist.zip to a folder,the instructions are in Import_EN.txt and in Import.xml .Its the xml file where we add the new chip.
Open Import.xml with notepad or any other text editor.In this example i`m adding a Macronix MX77L25650F SPI_NOR chip.
After adding the chip save the xml file and copy it to the root directory of the... -
I keep seeing people in the Tv forum asking for eeprom programming and a lot of them seem to use a CH341a.
Is there a reason why this seems to be so popular? Or are there better and preferable alternatives?
Are there ones which a novice would be better off using?
Any suggestions welcome. -
Common SPI bios chip programming Questions and Answers
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Q: I have a bios request,i can`t post my backup as i can`t read from the chip.
A: If you can`t read from it how do you expect to write to it ?.
Q: Why is my bios chip unreadable ?.
A: The programmer is faulty or has a worn or broken zif socket.
The USB cable is frayed,connector pins worn or some other physical damage.
Not enough amperage or voltage to power the programmer properly.
Bad...09-02-2021, 04:40 PM -
Long story short:
- dad converted Asus Chromebox CN62 into Windows compatible, with mrchromebox BIOS, years and years ago
- gave the computer to his son a couple years later
- son now decided to revert it to Chrome OS, to sell it as original (re-writing BIOS with the backup one created by his dad)
- too lazy to remove the board from the case, thought a voltage regulator was the BIOS chip (you know... it has 8 legs)
(seems like the story was not that short)
He used alligator clips to read the chip. No luck reading it. Removed chip and placed on a SOC-8...
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