BIOS flashing without battery

July 3, 2016 at 15:54:23
Specs: Windows 10
I am trying to update my BIOS in order to fix battery, see previous thread here:

http://www.computing.net/answers/ha...

In short, the battery is not bad but my laptop won't restart while the battery is plugged in. AC power works fine.

Two cases when I try to update the BIOS:

1. I try to update it with the battery plugged in causing me to get stuck at a black screen on restart.

2. I try to update it with only the AC power plugged in, causing me to be prompted for a battery.

Any ideas on how I can do this safely?


Also, would starting the installation with the battery plugged in, then unplugging it while the laptop is restarting, damage my laptop?

message edited by Riplaptop123


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#1
July 3, 2016 at 16:51:44
You never posted the model number of your Toshiba Satellite. As stated in your other thread, just because the BIOS is outdated doesn't necessarily mean it's a problem. When you went to the Toshiba website & checked for a BIOS update, did you check the description of what it actually updates or fixes? Did it specifically say "fixes problem restarting with battery" or something similar?

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#2
July 3, 2016 at 17:00:56
It did not although at this point, I am willing to try every possible option. My model is S55-A5295

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#3
July 3, 2016 at 17:56:36
It appears the latest BIOS is version 6.40. None of the versions say anything about battery issues. But since you listed Windows 10 as your OS, it might be worthwhile (see #1 in the description below). Did you have this problem with the previous OS?

"Version 6.40 - 2016-04-04

1. Support Windows 10.
2. Set: USB Provisioning default setting of disable for Release.
3. Improve system stability.
4. EC/KBC Change - Fixed the issue which mouse pointer appeares in reverse tablet mode."

http://support.toshiba.com/support/...

I wonder if you should have updated the BIOS prior to installing Win10?

message edited by riider


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#4
July 4, 2016 at 05:49:46
It's odd since I have been using Windows 10 ever since it came out with no problems. The problem arose just a week or two ago. No, I didn't have this problem with 8.1 either. Additionally, on the download page for my model, the newest version I can download is 1.80. I am currently using 1.60 version of the BIOS.

Is there a way to force to bios to update without a battery connected?

message edited by Riplaptop123


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#5
July 4, 2016 at 06:27:45
A BIOS flash should never be performed with battery power alone. I know of no reason why it wouldn't work with just the AC adapter or with the AC + battery, unless it has something to do with Win10?

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#6
July 4, 2016 at 16:12:13
I'm sure it would work. I just get an error when I try, telling me to plug in the battery, even though ac power is supplied

As a side note, i tried reinstalling windows 10 but the problem persists

message edited by Riplaptop123


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#7
July 4, 2016 at 17:34:09
OK, I did some searching & from what I've read, the S55-A5295 doesn't have a "user replaceable" battery?

http://cdgenp01.csd.toshiba.com/con...

If that's true, try doing a hard reset to fix the battery problem.

http://support.toshiba.com/support/...


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#8
July 4, 2016 at 17:53:16
Is this a new battery?
Are you trying to update bios from within windows 10?
Do you have the new bios on a stick?
Take out the HDD and check if you can start-up the laptop with battery and AC connected.
Do the BIOS upgrade from the stick or from within BIOS if possible.



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