Read fails for only 1 characteristic

[Thomas]

I am using the BLE Scanner app on Android to check that my device works.

I have 2 similar problems :

on one device, I can read all characteristics except one. This has been tested with different phones. The characteristic doesn't return anything on read

STRANGE thing : this happens only on one of the prototypes I have. On other prototypes there is no problem

I saw a similar problem with write on ANOTHER device : all writes work on writeable characteristics except on one characteristic (always the same) for ONE device (android error code 133).

So : 100 prototypes

• 98 work
• 1 has 1 characteristic with READ fail, all other characteristics work
• 1 has 1 characteristic with WRITE fail, all other characteristics work

Any idea what this could mean ?

The handlers in the code are one liners,they are not the culprits

Thanks Thomas

[Hung Bui]

@Thomas: Please let us know if you hit the issue again. Note that Android platform itself is not very reliable regarding BLE. It's always better to cross check with the PC software and maybe with an iOS device.