if you need to revert your router c20 v5 from openwrt to tplink firmware use this file to update from openwrt web page "luci"
Dropbox - TP-Link Stripped firmware for Archer C20 V5(US) - Simplify your life
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Hi, can you describe the steps you have used for stripped firmware?
this firmware not for me i only share the link to help others have the same problem.
help them with firmware that worked with me 100%