I am in the same situation. I purchased a Lenovo tab 4 10 plus ($300) specifically to use with Square. I purchased a suitable stand ($100) and a printer ($400) and router ($200) so that I could use these all together. And what do you know.... Square reader won't work with this tablet even though it's a very up to date device. The app runs great but reader won't work. Come on guys bluetooth is a convention that should work regardless of device. This device is NOT listed on the list of devices with known issues even though this thread shows many people having issues with it. Square has the ability to push out firmware and software updates to solve these issues so why aren't they fixing issues as they appear. This is not good enough. Should have stuck with PayPal here.
Hello @Hamish, I'm very sorry for the frustration.
I went to check for any developments on Lenovo Tab 4 (10) Plus compatibility, though there isn't anything that I can access and share out. We will update the Lenovo section of our Device Compatibility page as soon as we're able to test and support more tablets. In the meantime, other sellers have had success with using another supported Android device with a Heckler stand.
Hope this helps get you in the right direction for now. Again, apologies for the trouble with getting set up. Please do keep in touch and let us know if any other questions come up.
Thanks for your reply. I really hope they include support for square bluetooth reader on the lenovo tab 4 10 plus as it's a great tablet at a reasonable price.
As for stands I selected this one which is great for situations where you need the tablet to be secure
CTA Digital Universal Anti-Theft Security Grip with POS Stand for Tablets - iPad Air 2, iPad mini 4, Galaxy Tab, Note 10.1, 7-10-inch Tablets (PAD-UAT https://www.amazon.com/dp/B00PFEPSA8/ref=cm_sw_r_cp_apap_R8BQVME8kLe3D
And I also have one of these which is also great quality and a good price.
AboveTEK Elegant Tablet Stand, Aluminum iPad Stand Holder, Desktop Kiosk POS Stand for 7-13 inch iPad Pro Air Mini Galaxy Tab Nexus, Tablet Mount for Store Showcase Office Reception Kitchen Countertop https://www.amazon.com/dp/B01KW7LSQK/ref=cm_sw_r_cp_apa_i_shhhBbRX3PQ0T
I highly recommend both of these stands.