Brick updating bios aspire 7720Z

Hi guys!

I have an old aspire 7720z ick70. I tried to update my bios from 1.14 to 1.45 and while the flashing the device stops suddenly. I wait for a couple of hours and nothing works (tochpad, keyboard, power button...) so I get the battery out and get it on again. Now nothing works (power button, power leds...nothing).
Searching by forums I have found that there is a key-treak to wake up the notebook and re-flash the bios with a usb pendrive, but I can´t found the treak for my device.
Could somebody help me, please?
Thanks in advance.

P.S.: sorry about my english...I think is not so good.

 

The method is: Get a BIOS image in .fd format (if you have it in .exe format, then use 7-Zip to extract), rename it to "ICL50HW.FD", burn to a CD, and use Fn+Esc to trigger recovery mode. There is a thread about it (though it mentions the Aspire 5315, the 7720Z's motherboard is identical to the 5135).

 

Thanks for your answer, netroller 3d, but I was trying this yesterday afternoon, and I don´t was able to wake up my notebook.
With your answer I asume that the bios is an inside h2o, isn´t it? So I don´t need the method of the crisdisk.
Ok, I think the problem is that the key combo don´t woks on my notebook. Touch the Fn button plus the Esc button at the same time, then plug in the AC wire and then press the power button. Thats right?...the notebook don´t do anything.
Is there another key combo for this device?
Thanks a lot.

 

Yes, this is an Insyde BIOS, so no special crisis disk utility needed.

The procedure is:
1. Remove battery and AC.
2. Press and hold Fn+Esc.
3. Plug in the AC. The power button should briefly flash orange.
4. Press the power button. Fan should spin up. There will be no display on the screen, and all LEDs will remain dark.
5. Release Fn+Esc.
6. Insert the CD containing ICL50HW.FD and wait until the notebook powers down.

If this doesn't work, try this:
1. Remove battery and AC.
2. Plug in a fully-charged battery. (We are going to use it for flashing, so make really sure that it can hold a charge!)
3. Press Fn+Esc.
4. Follow steps 4-6 above.

 

Thanks a lot for your answer netroller. I was involved in a moving those weeks, so I coldn't do anything on my notebook.

The steps you said are the same that I tried, but not had orange light and fan didn't works. So I asume that cd drive not works also.

I'll try with battery and no AC cable. The notebook was pluggin when the fatal error happens so I suppose that the battery is full. I have no chance to prove it because don't know anybody with this notebook.

The previous owner said me that she usually carry the device to a technical support. Is possible that anyone there had desable the key-combo?

If this is possible, please a tuttorial to redo this.

Thanks in advance for your time.

 

There is no way to disable Fn+Esc on an Insyde BIOS - if there is no hardware issue, it should work.

However, if you have no orange flash, then chances are that the fault that caused your notebook to power down while flashing is still present. Most likely the voltage regulator is shot.

 

try with 1.11 bios to recovery ICL50HW.fd

it works for me

 

1.45 should work too, it doesn't matter. No orange flash always means a hardware (usually power) failure.

 

I know it doesn't matter but a couple times my laptop bricked and 1.45 didn't work with my 5315
1.11 works fine every time