How do I pair my bt 38k1 to my new phone lg g2?

Try 0000

how to reset the pin number for bt 38k1

to pair a blue tooth device to a phone first you must turn the bt power on the phone to on,then you have to put your blue tooth device into discovery mode,now most manufactures use the power button for thisw feature.By holding down the power button on your device when turning it on for 6 to 10 seconds it usually puts the device into discovery mode.there should be a light that stays on on your blue tooth device.once you have the bt device into discovery mode you will be able to pair the device to your phone by search or add new device,once it pairs it will ask for a pin or pairing code.most manufactures of blue tooth devices use a 4 digit factory pin pairing code they aare as follows 0000,1234,9999,or 1111 once youve put tjhe pin code on they will pair ,i hope this helps

Each pair of BT enabled phone and headset is a particular world. I don't have the Plantronics, but my LG phone pairs fine with my Lubix stereo headsets. I'll tell you how I managed to pair them: I put my headsets in pairing mode. Then, on my phone, I go to 'Connectivity > Bluetooth > Device list > Options > New'. If my bluetooth stack is off I'm prompted to turn it on. It starts to search for devices, and comes up with my BT headsets' name, I press 'Pair', it prompts me for the pairing code. I enter '0000' (the same code for your Plantronics' headsets, by the way) and Ok. Then, back to the Device list, I select the BT headsets and go to 'Options > Connect'. I'm good to go. After listening to music, I use to go again to 'Connectivity > Bluetooth > Device list', select the headsets and press 'Options > Disconnect'.
Hope it works for you.
Cheers! Carlos

look at BT manual to turn on visibility of unit then when phone finds it u need to set up a 4 digit security code for the pair to connect

after pair successful highlight the headset and hit connect

I figuered it out.........you have to push and hold the BT button down as the phone searches for it. Good to go.

The mamual says to hold the - and + volume keys at the same time for approx. 2 seconds till the light starts to flash green and red. The pairing code is 1234

Push and hold both vol(+) and vol (-) at the same time for approx 2 secs. The headset will falsh green and red lights. Get your phone to search for bluetooth devices. It should find the headset. Enter pairing code 1234 in phone. Done

im having a problem with my h700c and my lg too it was paired with a samsung and i got the lg now the phone phone the BT fine it just wont pair,wat can it be?