I don't own a 570, but all the BIOS upgrades I've done on ThinkPads of
this vintage will not work at all unless a battery is present. It's not up
to the user.
Paul Pennington
Augusta, Georgia
----- Original Message -----
From: "Rob Bell" <[email protected]>
To: <[email protected]>
Cc: <[email protected]>
Sent: Monday, February 15, 2010 5:19 PM
Subject: Re: [Thinkpad] Putting a CF in a 570
Donald MacQueen wrote:
The bios update instructions say that you need ac power -and- a charged
battery. What is the charged battery (which I don't have anymore) used
for? Will the update succeed without one?
Thanks again.
The charged battery is expected to be in place as a failsafe in the event
that AC power is interrupted during the BIOS update. If the update is
interrupted by a loss of power the BIOS will be permanently broken.
Depending on the machine (I believe) some may let you take the risk and
some may prevent you from moving ahead without a battery.
I guess I'd rate the risk like this: If the laptop is solidly plugged
into the wall and the AC power is reliable and the AC adapter is reliable
(no flakey cord) and you don't do anything that risks bumping the laptop
or cord during the BIOS update then your risk should be low. But by doing
so you run the chance of killing your PC. Is avoiding that chance worth
the price of a new battery? Only you can answer that.
Rob
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