UBOOM L - Blinking Power Light And No Functionality After Successful Firmware Updates

Feb 11,2024
Feb 11,2024 at 1:16 pm
Feb 11,2024 at 1:16 pm

Hello ~ I recently purchased the UBOOM L, which switched on and paired with my phone successfully.

I wished to downgrade the firmware to Oluv's 0.4.5, which appeared to have work correctly, however when I now try to switch the unit on, I get a flashing power light and cannot pair my speaker with a device. I re-flashed the firmware back to 0.5.0, but that has not solved the issue.

I've tried a speaker reset by holding the power button for eight seconds, and also using the reset switch on the back of the unit.

Can you assist please?

Thank you!!


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EarFun CS Team

Staff Member

Feb 22,2024 at 10:7 am
Feb 22,2024 at 10:7 am

Hi Friend,


Thanks for choosing EarFun.


Please kindly send us your order number and email our customer service team via service@myearfun.com or submit the warranty ticket on our official website: https://www.myearfun.com/process-warranty.




EarFun Customer Service Team

Report #1 Reply
Mar 09,2024 at 11:7 am
Mar 09,2024 at 11:7 am

You need to choose existence UboomL in the bluetooth list and forget it, then connect again. It is written in the firmware instruction

Report #2 Reply

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