Makeblock mBot Manual page 71

Since the iPad 2 doesn't support BLE protocol, so it cannot work with our Apps which need
connect with Bluetooth.
The Apps of our product work with iPad 3 and above and the iOS should be iOS 9.0 and above.
V. The Bluetooth connection to the Ultimate 2.0 is unstable?
For the issue that the Bluetooth connection is unstable between Robot and Makeblock App, it may
be caused by the power issue, or the Bluetooth module is not well plugged. So, you may change
the battery for the Ultimate 2.0 to have a try since it is easy to lead disconnect issue on Bluetooth
when it lacks power.
According to our test and research, it is suggested to use rechargeable Li-ion battery or
rechargeable nickel-metal hydride, nickel-cadmium which can be bought from amazon or local
shop. Or alkaline battery with good quality like Energizer, DURACELL.
Besides, please check if the issue goes to the same when use other devices.
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