Discuss [MacBook] How can I force a firmware re-flash ? at the Genuine Mac Support - Hackint0sh.org; I have a MacBook 2,1 2.0GHz Core 2 Duo, Late 2006 model. It has the ...
[MacBook] How can I force a firmware re-flash ?
I have a MacBook 2,1 2.0GHz Core 2 Duo, Late 2006 model. It has the latest Firmware installed (v1.1) but I would like to re-flash this because I fear it may be corrupted slightly. How can I get round the Firmware update identifying I already have it installed? Surely there must be something I can edit in a plist file which will skip the detection of the current Firmware version (a bit like when you install iMovie '08 on a G4)??
Please help, I don't mind using Terminal if that's the only way round detection.
Short of a logic board replacement which you may need due to that MacBook Pro having coffee spilled on it there is no known way that I am aware of.
That advice you got on the apple support forum was wrong on 2 counts. The restore cd stated was the wrong version for your model, and since you are already running the latest version of the firmware, it won't work.
Your thought on that forum that you can't boot into openfirmware should be the first clue that you are on the wrong track regarding reflashing the firmware. Your model uses EFI as you were told.
There could be many reasons for the issues you are running into. You stated you had ordered a "new MagSafe connector, new battery connector and a new pram battery." You stated you had reset the PRAM and NVRAM.
The symptoms of your coffee spilled MBP are:
"Boot from PSU - Fine
Boot from Battery - No
Run from just PSU - Fine for about 10 mins then it turns itself off (probably because the PSU alone doesn't provide enough wattage)
Run from just Battery - Fine (charged it up in another MacBook)"
Before you open those parts I'd try something I didn't see you mention, a reset of the SMC chip which controls some charging and sleep functions:
Download this old service manual which has a usable trouble shooting section for start up, shut down and battery charging if the SMC reset doesn't work.
Only perform an SMC reset on the computer if none of the above steps resolved the situation. If this is the case, see below for instructions on locating the reset button or key combination for your model of computer. If your computer is earlier than the models listed here, see "Resetting PowerBook and iBook Power Management Unit (PMU)" or "PowerBook: Resetting Power Management Unit (PMU)".
MacBook, MacBook Pro
1. If the computer is on, turn it off.
2. Disconnect the AC Adapter and remove the computer's battery.
3. Press and hold down the power button for 5 seconds and then release the button.
4. Reconnect the battery and AC Adapter.
5. Press the Power button to restart the computer.
There are many serviceable parts that may be causing your problem, try using that service manual considering coffee isn't the best thing for a laptop to consume.
Nice bit of helpful stalking there
I did mention in an earlier post that I had tried PRAM and SMC resets with no luck. It is infact a MacBook that I have, not a MBP. Is there a service manual for that?
It just seems strange that the laptop will actually run from the battery but the computer has no idea a battery is connected, it's like the detection sensor has gone. I wish I knew how to check individual components on the logic board, I'm useless with my mulitmeter!
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