Have you checked that both the batteries are installed correctly?
They should both be +ve on top as shown in the ifixit [guide|145390] guide.
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If you've got a DMM (digital multimeter) check the voltage of the original batteries. If they're <1.5V then perhaps that's why the keyboard won't work.
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If you've got a DMM (digital multimeter) check the voltage of the original batteries. If they're <1.5V then perhaps that's why the keyboard won't work. A single new battery is 3V.
Why did you try to replace them in the first place?
Hi @mckennah
Have you checked that both the batteries are installed correctly?
They should both be +ve on top as shown in the ifixit [guide|145390] guide.
If you've got a DMM (digital multimeter) check the voltage of the original batteries. If they're <1.5V then perhaps that's why the keyboard won't work.
Why did you try to replace them in the first place?