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Difference between write with/without response for Android and iOS

Other Parts Discussed in Thread: CC2540

Hi,

I am working with CC2540 and experience the following:

1) Android -> all the write was using "Write_Type_No_Response" and seems to be working

2) iOS -> most of the write (other than OAD) requires "CBCharacteristicWriteWithResponse" to work. if using "

CBCharacteristicWriteWithoutResponse", the chip doesn't do any thing.

Anyone know what the problem is?

Is it just iOS 7 OS restriction?

Thanks