** Raspberry Pi RPI.L gains 6.5% to 501.5p; among top pct gainers on FTSE 250 .FTMC index
** British single-board computer maker narrowly beats FY core profit estimates, helped by sales of its flagship Raspberry Pi5 and semiconductor units
** Jefferies upgrades to "buy" from "hold"; only brokerage with "buy", per data compile by LSEG
** Brokerage sees recovery from inventory issues and growth from new products
** Stock rated "hold" on avg; median PT is 522.50p
** Stock down 20.3% this year, as of last close
(Reporting by Rashika Singh)
((Rashika.singh@thomsonreuters.com))