Bricking & Unbricking a Dell Inspiron Mini 9

I dusted off an old Dell Mini 9 netbook I had lying around, I’d stopped using it as the netbook refused to charge its battery once it’d run down completely (easily do-able if the machine is used lightly & could go up to a month without use), after the second battery It happend to, I gave up on it.
A side effect of the battery being run down was that it was not possible to flash the BIOS through windows, Phoenix WinPhlash refuses to write to the flash if there is no battery detected & exits with error code: -144.
This is not an issue on DOS using the phlash16 utility. Here lies a different kind of madness, as it’s attempting to write to the flash it stops using the mains & switches to battery power source, which if you have an unchargable battery results in bricking the netbook.
At this point, you can perform a flash recovery using a boot floppy containing a special boot sector, the phlash16 utility, some library and a copy of the image to flash named as BIOS.WPH generated with the BIOS recovery tool.
To initiate the recovery mode, the power and battery need to be removed, a USB floppy drive connected (of the left hand side ports only the USB port closest to the SD card reader worked on mine). With the Fn & B keys held down on the keyboard, connect the power whilst continuing to hold the keys down. At this point the power light should switch on. Press the power button & when you hear a beep, let go of the keyboard keys.
After a moment the system will begin reading the floppy & once reflashing commences, the system will begin beeping, once it has finished the system will reboot & startup normally.
I was unable to find working links for prepared images which I could write using dd so instead had to resort to finding another machine running Windows XP & a USB floppy drive but I’ve imaged the floppies I created so hopefully It wont be a repeated exercise.

The images can be written to a USB flash drive & used to recover a Mini 9

A04 Bios recovery image
A07 Bios recovery image

If you have a faulty or uncharged battery & you intend to use the phlash16 utility, remove the battery before attempting to flash the BIOS.

One Reply to “Bricking & Unbricking a Dell Inspiron Mini 9”

  1. Is a USB floppy drive necessary? I’m trying all the above using bootable USB flash drive containing: 1) base files for bootability (created using Rufus), 2) phlash16, and 3) your A07 image renamed bios.wph. How it goes: while holding down FN + B, upon AC connection, nothing happens (no power light). Power on pressed – power light – a beep – FN + B released – USB flash reading (flashing light) – after 15 sec or so light goes steady and the story ends. After disconnecting and reconnecting power everything (including Windows) boots normally. No BIOS flash attempted, I guess. Where am I doing wrong? Battery removed all the time.

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