In the case, where you no longer have a working DVD drive, you can still install Windows directly from the ISO file. To my knowledge no firmware upgrades were ever released to allow USB installs on 2011 or older Macs. Apple changed the firmware to allow USB Windows installs around 2012, when they stopped putting DVD drives in Macs. Also, the 2010 models were required to install Windows using a DVD. All the 2010 models were not designed to do so. It is my understanding the newer Macs do install Windows to boot using the EFI. This software assumes you have installed Windows to boot using the BIOS method. To get all of the device drivers to work properly, you need to install the proper "Boot Camp Support Software". Many have attempted to install Windows to boot using the EFI, but doing so in my option is rather pointless. OS X and many Linux operating systems can be installed to boot using the EFI firmware. The older (legacy) method uses the BIOS firmware and the newer method uses the EFI firmware. There are two methods to boot software on your Mac. You can install without a DVD or flash drive, but the procedure is difficult and requires installing third party software. Is there anything that I can try before replacing the keyboard? Also, the external keyboard does not work either.You can not use a USB flash drive to install Windows on a 2010 iMac. It appears that the machine is stuck in some sort of BIOS mode or something. I took out the hard drive but still, it is showing this.
I tried holding the alt key, resetting PRAM, SMC, but nothing worked. When I turned my system on, it showed a white screen (no chime) and went to this screen “No bootable device - insert boot disk and press any key“ keyboard was not responding except the power button. I made sure that the keyboard was fully dry. It spent there like 2 hours and then it was drying for like 7 hours. Anyways I took out the keyboard and put it into my ultrasonic cleaner filled with distilled water. Before the disassembly, I messed around with Bootcamp (not sure if it’s important).Įverything went great, but the backlight film had a big coffee stain on it. So I decided to clean out the keyboard and whole laptop. Everything was great except the keyboard which had some signs of water damage (it pressed random keys, some keys weren’t working, it double typed).
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