Configurable ATT MTU

[milav]

Is this possible to change MTU Size in nrf51822 Board from 23 to 43?

is any changes is done android side app? the application is same copy of nrf Toolbox UART app.

please suggest me a right way.

Thank YOu

[endnode]

Not with Nordic stack as far as I understand, all S110/120/130 versions support only default ATT_MTU size (for memory reasons - it requires certain amount of RAM).

[John]

I'm not sure this is correct. I just took a quick look at the Nordic website documentation. Under the nRF51 soft devices, the S130 indicated it supported Bluetooth 4.2 with configurable ATT MTU.