Add a Power Switch to F710 Controller : 9 Steps - Instructables
Contacted Logitech support about a bunch of faulty key caps on my G710+, 2 weeks later and a brand new G810 is at my door. They've earned a customer for life! :
Logitech G710+ disassembly and flaky key repair | Roman's Projects
Logitech G710+Gaming Keyboard Review - YouTube
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Logitech G710 Mechanical USB Gaming Keyboard - Newegg.com