From a030ed8ccb6923efa9b0f313f516309da9b31bde Mon Sep 17 00:00:00 2001
From: sspark <sspark@onioi.com>
Date: Tue, 24 Jan 2023 10:51:20 +0000
Subject: [PATCH] rel 0.9.3

---
 README.md |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/README.md b/README.md
index 676b875..b9fb3e1 100644
--- a/README.md
+++ b/README.md
@@ -111,6 +111,17 @@
 
 ```
 
+kernel header issue ( Error! DKMS tree already contains: 8812au-5.6.4.2_35491.20191025 )
+```
+sudo apt-get upgrade
+sudo reboot
+sudo apt install build-essential libelf-dev linux-headers-$(uname -r)
+sudo dkms status
+sudo dkms remove 8812au/5.6.4.2_35491.20191025 --all
+sudo dkms status
+sudo make dkms_install
+```
+
 ### RPi4 internal WiFi disable & USB WiFi enable wlan0 ###
 
 /boot/config.txt

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