Re: Dell Latitude 3420 BIOS - Manufacturing Mode Required

If you can take a look at the latest BIOS dump uploaded hoaca388, that would be great.

Cheers

Re: Dell Latitude 3420 BIOS - Manufacturing Mode Required

Thanks hoaca388.

I took some time to do some testing (thought my rt809f had broken, but it hadn't thankfully) - I was able to read/write BIOS images on another working laptop I have.

I managed to get another 3420 board, this time with an MXIC MX77L25650FZ4I42A BIOS chip installed (full model number is longer with 'L222862' included). This chip isn't listed within the iFix software unfortunately but after googling the chip specs, it seems to match the specs of the 'W25Q256FV@WSON8 8X6' option...

Re: Dell Latitude 3420 BIOS - Manufacturing Mode Required

Thanks hoaca388.

Is the attached BIOS dump any better? The compressed file size is definitely larger than before.

Cheers...

Re: Dell Latitude 3420 BIOS - Manufacturing Mode Required

Thanks for looking at this hoaca388.

I took the bios dump (uploaded yesterday) with my rt809f programmer.

I since attempted several other dumps of the chip but each time the results are different (in total I have 8 dumps now). The latest version I've attached.

I then released I was dumping the data using the GD25Q256C@SOP16 settings (within the iFix program). I've since switched to the appropriate WSON8 settings (the dump for this can be seen below).

I also found...

Dell Latitude 3420 - EC Region 'Reset' Needed (MPM Unlock)

Hi,

Can someone please help with replacing/'resetting' the EC region of the attached BIOS image?

Laptop is a Dell Latitude 3420.

Thanks guys...

Re: Broken Dell Ultrasharp U2410

Hi,

Had exactly the same problem recently.
Managed to get a broken U2410f, the problem being that the screen would stay on for a few seconds and soon after would turn off. In order turn back on I'd have to disconnect it from the mains and reconnect but then again it would turn off after only a few seconds.

On closer inspection I found that the backlight was causing the problem.
I dissembled the entire unit and found that the cause of the issue was a charred CCFL tube + the plastic around the connector for...