South Korea's Samsung Electronics Co said on Thursday it has not considered acquiring Research In MotionK or licensing the embattled BlackBerry phone maker's new mobile operating system.
A lack of support from potential partners such as Samsung could mean more trouble for RIM, which is seeking various options to turn around its embattled business.
Shares of RIM had risen more than 5 percent early on Wednesday after an influential analyst said it may license the BlackBerry 10 system to Samsung.
"RIM has already lost its initiative in the smartphone market and what is left doesn't look really attractive to the likes of Samsung," said Lee Sei-cheol, an analyst at Meritz Securities. "Should they have a deep patent pool, that might be the most appealing asset to potential acquirers."
RIM's shares have fallen more than 80 percent since the beginning of 2011 when Apple and other smartphone makers started to widen their lead on RIM, which once dominated the business.