A roundup of tech analyst ratings changes: 1) Evercore has downgraded Intel (INTC -1.5%) to Underweight. Also, Citi has cut its estimates for Intel. 2) Citi has removed Qualcomm (QCOM -0.5%) from its Top Picks Live list. 3) Needham has downgraded contract manufacturers Flextronics (FLEX -0.9%), Plexus (PLXS -1%), and Benchmark Electronics (BHE -1%) to Hold. 4) HSBC has upgraded China Unicom (CHU +0.7%) to Neutral. 5) Jefferies has started Nintendo (NTDOY.PK) at Buy. 6) Evercore has downgraded ON Semi (ONNN -2.7%) to Equal Weight. 7) Barclays has downgraded VeriFone (PAY -1.2%) to Equal Weight.