# Bluetooth controllers **URL:** \ **Category:** Uncategorized\ **Created:** [21 March 2022 22:48 UTC](https://forum.core-electronics.com.au/t/bluetooth-controllers/13497 "2022-03-21T22:48:58Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![James](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/james/32/4400_2.png) [@James](https://forum.core-electronics.com.au/u/James)\ **Post date:** [24 March 2022 04:32 UTC](https://forum.core-electronics.com.au/t/bluetooth-controllers/13497/5 "2022-03-24T04:32:43Z")
Hi Jane, Could you share a bit more about your software situation? That changes the guides and things we recommend. Are you using RetroPie or similar, or just Pi OS. There was a bug getting around a while back with those 8bitdo controllers with retropie, detailed here: > [@Workaround for the RetroPie Bluetooth Security Bug](https://forum.core-electronics.com.au/t/workaround-for-the-retropie-bluetooth-security-bug/10623): > > We have just shared a new tutorial: [“Workaround for the RetroPie Bluetooth Security Bug”](http://core-electronics.com.au/tutorials/workaround-for-the-retropie-bluetooth-security-bug.html) [image] The Problem: You may find that while setting up RetroPie on your Raspberry Pi that pairing new Bluetooth controllers results in something like: During the “Please choose the security mode - Try the first one, then second if that fails”, RetroPie feezes/stops responding When pairing, you get the error “Failed to pair: org.bluez.Error.AuthenticationFailed” If so, then read on as we have a workaro… I’d also make sure you’re in x-input mode (holding x and start when turning on the controller) Also, I’d try the controllers over USB to make sure they are functioning as expected. There is also another thread you may want to have a read through: > [@Bluetooth issues with 8BitDo SN30pro on Rasp Pi 4 with Retropie](https://forum.core-electronics.com.au/t/bluetooth-issues-with-8bitdo-sn30pro-on-rasp-pi-4-with-retropie/10119/45): > > I’ve been away for a few days so only got a chance to have another go last night. My issue was described earlier in this thread and, although related to the same controllers, was different to what Brian has described. In case it helps others avoid the frustrating journey I experienced, I have resolved this by starting from scratch. That is, I took the SD card that I had originally received as part of the kit and replaced with a new image using the instructions at [First Installation - RetroPie D…](https://retropie.org.uk/docs/First-Installation/) Keen to get you back on track! -James --- _[View the full topic](https://forum.core-electronics.com.au/t/bluetooth-controllers/13497)._