I’ve just repaired a whole batch of HTC Vive controllers for Goldsmiths, University of London.
The entire batch had familiar faults with trackpad issues, and general unresponsive trackpads due to a design flaw. Other faults may be involving battery and charging issues, a faulty steam / menu button, trigger or grip button.
I have a service of repairing controllers at £25 per controller. You can send a batch of them to me and I can repair your controllers, and post them back to you within a few days. If you have any enquiries regarding HTC VIVE Controller repairs, send me an email at firstname.lastname@example.org or telephone me on 07973 993049.