SKKCA-21 Connection Down

[cheekangteh]

hi, why the Bluetooth module always connection down with my phone device?

i open kcToolKit to view my connection. When i pair the Bluetooth module with my laptop. it success and how me
AT-ZV ConnectionUp
AT-ZV -BypassMode-
(it successful pairing)

but when i try with my mobile device, it show me:
AT-ZV ConnectionUp
AT-ZV -BypassMode-
and direct continue with
AT-ZV ConnectionDown
(not successful)

why this happened? how can i soft this? kindly advice. thanks

[cheekangteh]

or sometime it show me
AT-ZV ConnectionUp
AT-ZV -BypassMode-
AT-ZV BondingPending 0017835986a9
AT-ZV ConnectionDown

[kl84]

Since you said it works when pairing with your laptop, it has to do with your phone's bluetooth connection. Have you tried with another phone? ...from your friends may be?

[cheekangteh]

yup... i try with other mobile phone.. it show me bonding ok.
what mean by bonding ok? means got connecction and both device can communicate?

not that if the connection is establish, it will show me
AT-ZV ConnectionUp
AT-ZV -BypassMode-
and both device can starting their communication.

isn't the Bluetooth module support only specific mobile phone? or any version mobile phone that can support serial port communication ?
kindly advice.
thanks

[robosang]

I have tested my SKKCA-21 before with one of my friend's phone, I think is samsung, but forgot the model. I think if the phone have SSP (Serial Port Profile), you should be able to create connection.

I guess the bonding should be from the phone, do the phone request to key in bond key?

[cheekangteh]

hi, i test with HTC model.

Yup, for the first time it ask me for the key in bond key, but i just click next without key the key.
and it show me
AT-ZV ConnectionUp
AT-ZV -BypassMode-
then hang for while, then
AT-ZV ConnectionDown
...
after i restart my handphone, it direct show me
AT-ZV ConnectionUp
AT-ZV -BypassMode-
AT-ZV ConnectionDown
without asking me the key.

i try to check mobile phone Bluetooth setting.. it is correct...
but i don't know why it automatic come to connection down.. kindly advice. thanks

[cheekangteh]

i try my mobile phone with GPS receiver that using Bluetooth serial profile, and it can be connect without any problem. What i can do for this? can suggest me some way for checking the problem ? tq

[robosang]

If you suspect the SKKCA-21 really have problem, you can fill in the form under support tab in Cytron website. Their technical team will follow up with you. My SKKCA-21 is working fine at least with my Bluetooth Dongle.

Have you try with Bluetooth Dongle on computer?

[cheekangteh]

yup... i try b4... it success..

[robosang]

yup... i try b4... it success..

You can use dongle to connect SKKCA-21 but the handphone fail? Can it be handphone setting?