4.19.42+ kernel broke the file system, LZ4 issue, how to revert to prev kernel?

[Nachteule]

Install older kernel procedure:

1) refresh apt database

Terminal

sudo apt-get update

2) get a list of available versions

Terminal

sudo apt-cache policy linux-image-bcm2836
linux-image-bcm2836:
Installiert: 5.1.1+-1557851454
Installationskandidat: 5.1.1+-1557851454
Versionstabelle:
*** 5.1.1+-1557851454 100
100 /var/lib/dpkg/status
4.19.42+-1557939063 500
500 http://kmcubie stable/rpi2-stretch armhf Packages
4.19.34+-1555996925 500
500 http://kmcubie staging/rpi2-stretch armhf Packages
4.19.30+-1553363462 500
500 http://kmcubie staging/rpi2-stretch armhf Packages
4.19.29+-1552695630 500
500 http://kmcubie staging/rpi2-stretch armhf Packages
4.14.102+-1555993600 500
500 http://kmcubie stable/rpi2-stretch armhf Packages
4.14.102+-1550774632 500
500 http://kmcubie stable/rpi2-stretch armhf Packages
4.9.108+-1530490703 500
500 http://kmcubie stable/armv7l-stretch armhf Packages

3) Install older kernel version 4.14.102+-1550774632 for example

Terminal

sudo apt-get install linux-image-bcm2836=4.14.102+-1550774632