[BUG] returned  error cod 144 when trying to do firmware

When I try to install firmware  The device returned an error code (144)
(field to open new session error 144)
because right buds have differnt version of firmware and left buds have differnt version firmware 
how can i update if the 2 buds(L+R) have differnt version of firmware  can any one fix this pls
i think someone can get rid of this error  144