https://devzone.nordicsemi.com/f/nordic-q-a/62143/ios-requesting-large-packetI have an application communicating with IOS Bluetooth and it seems that IOS tries to write characteristics larger than the default. The Trace is shown below. Is this a normal exchange or should I be doing something to prevent this. On Android the flowen-USTelligent Community 13Fri, 05 Jun 2020 09:01:48 GMThttps://devzone.nordicsemi.com/thread/253458?ContentTypeID=1Fri, 05 Jun 2020 09:01:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:62be7856-ba51-4860-97f5-20025aa1eae1Aleksander Nowakowski<p>iOS requests highest mtu and data length automatically. If the device responds with lower values, these are then used by the app. Apps should check CBPeripheral.maximumWriteValueLenght(forWriteType:)&nbsp;<a href="https://developer.apple.com/documentation/corebluetooth/cbperipheral/1620312-maximumwritevaluelength">developer.apple.com/.../1620312-maximumwritevaluelength</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/253401?ContentTypeID=1Fri, 05 Jun 2020 01:58:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cac923b4-594e-4260-a0fb-2ee722129b78fgeldenh<p>Thank You</p> <p>We can close</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/253352?ContentTypeID=1Thu, 04 Jun 2020 15:28:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2ed48d79-57c4-4f2e-849e-5d61f69be852Aleksander Nowakowski<p>iOS requests highest mtu and data length automatically. If the device responds with lower values, these are then used by the app. Apps should check CBPeripheral.maximumWriteValueLenght(forWriteType:)&nbsp;<a href="https://developer.apple.com/documentation/corebluetooth/cbperipheral/1620312-maximumwritevaluelength">developer.apple.com/.../1620312-maximumwritevaluelength</a></p><div style="clear:both;"></div>