BLE 4.3 having issue with Service Discovery

Question

I am developing BLE application for android 4.3+ devices. Device discovery, Device Connecting and then Service Discovery everything fine for Nexus4 4.3 device. But same sequence not working, after establish connection, it not able to discover services.

What I understand till now is, it should work flawlessly for every android device who support BLE4.0 and has Android OS version 4.3+. Is there anything depend on Hardware or any other device specification. Here it also support same, it should not be different.

score 0 · Answer 1 · edited May 23 '17 at 10:24

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You should call Discovery services once right after your GATT-client connected. If it is failed, this may mean your device possibly lost bonding (often case). At all Android BLE critical unstable yet.

edited May 23 '17 at 10:24

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answered May 23 '14 at 14:23

Konstantin Konopko

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This is same I am doing ...n it working for some of device I tested Nexus-4, Moto-G. But on some device it get failing..any other suggestion!!! – CoDe May 26 '14 at 05:14
@Shubh and what logcat say? – Konstantin Konopko May 26 '14 at 08:15
@Shubh this log say me nothing, sorry – Konstantin Konopko Jun 11 '14 at 08:36
let me know what u need,..might be help you. – CoDe Jun 11 '14 at 13:14
@Shubh do you make device bonding? – Konstantin Konopko Jun 12 '14 at 13:48
yes device connection is build but while service discovery it getting fail. – CoDe Jun 14 '14 at 04:08
@Shubh it could be device brain damage or smartphone BLE bug. In both cases it is unpossible to workaround, sorry – Konstantin Konopko Jun 30 '14 at 12:19
yes @Konopko , yes similar since peripheral device working with mob device properly so nothing from device side. So I also assuming it is related with smart device, but how can identify it even iat runtime, so can say "Oyyii...there is some issue here"..please suggest if you have any. Thanks :) – CoDe Jun 30 '14 at 12:35
@Shubh if you get some issue, so that is the reason, guess) – Konstantin Konopko Jul 01 '14 at 12:19
but these issue not responded back to application e.g. some runtime issue. – CoDe Jul 01 '14 at 12:32
@Shubh listen, I'm not sure what exactly damaged in Android BLE: OS or smart device. But it is seems that someth wrong with OS because so many smart devices doesn't work correctly. See the link behind I mentioned. – Konstantin Konopko Jul 01 '14 at 12:41
yes I am aware about issue mention over there, but I think it's time to conclude as we both not know what could be possible cause, is it OS(that I don't think, but yes customization can play role here) or Device(but not sure since BLE hardware is same for everyone I guess)...thanks for your time..please update here if you found anything useful. :) – CoDe Jul 02 '14 at 13:22
@Shubh it is new Android L comes this fall, hope it solve BLE problems) – Konstantin Konopko Jul 07 '14 at 11:59
@Shubh yes, see the last Google I/O 2014 – Konstantin Konopko Jul 07 '14 at 12:33

BLE 4.3 having issue with Service Discovery

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