Context : Stars with about 1 - 2 solar masses at the red giant branch ( RGB ) represent an intriguing period of stellar evolution , i.e .
when the convective envelope interacts with the fast-rotating core .
During these mixing episodes freshly synthesized lithium can come up to the stellar surface along with high angular momentum material .
This high angular momentum may alter the surface rotation pattern .

Aims : The single rapidly rotating K-giant V1192 Ori is revisited to determine its surface differential rotation , lithium abundance , and basic stellar properties such as a precise rotation period .
The aim is to independently verify the antisolar differential rotation of the star and possibly find a connection to the surface lithium abundance .

Methods : We applied time-series Doppler imaging to a new multi-epoch data set .
Altogether we reconstructed 11 Doppler images from spectroscopic data collected with the STELLA robotic telescope between 2007–2016 .
We used our inversion code iMap to reconstruct all stellar surface maps .
We extracted the differential rotation from these images by tracing systematic spot migration as a function of stellar latitude from consecutive image cross-correlations .

Results : The position of V1192 Ori in the Hertzsprung-Russell diagram suggests that the star is in the helium core-burning phase just leaving the RGB bump .
We measure A ( { Li } ) _ { NLTE } = 1.27 , i.e .
a value close to the anticipated transition value of 1.5 from Li-normal to Li-rich giants .
Doppler images reveal extended dark areas arranged quasi-evenly along an equatorial belt .
No cool polar spot is found during the investigated epoch .
Spot displacements clearly suggest antisolar surface differential rotation with \alpha = -0.11 \pm 0.02 shear coefficient .

Conclusions : The surface Li enrichment and the peculiar surface rotation pattern may indicate a common origin .