Vonhendon said:
I have the Harbor Freight 98614, I am happy with it for the price. I heard one should never upgrade the firmware and support from the manufacturer is non existent. Cen-tech is Harbor Freights brand. There is another brand available of the same exact device that is a bit cheaper in price. It is a risk as it would not have the HF return guarantee but if you are confident, you would save money. I am unable to remember the brand at the moment but it is common all over Amazon. It looked identical except the user manual omitted the words cen-tech.
Quick look on amazon, the name could possibly be Autel. The model number eludes me but one can locate the same one, look close enough at the features and compare the pdf user manuals available for both.
If you have a specific question about the 98614, let me know