answered
2017-09-05 23:35:50 +0200
Ralf 
686 ●25 ●36 ●38
I give the answer by myself because other users looking maybe also the same solution.
Note: In Sailfish 2.1.1.26 there are many small changes in the use of recovery mode. It is Version 2.0 now.
- First I bring my Jolla C in recovery mode with:
- switch off the phone complete (if is not possible take out the battery)
- hold permanently the Volume Up (the button on the upper end of the phone)
- now press also the power button until the phone vibrates then release both buttons
- now you see no Jolla Logo because new is only a small line "recovery mode...telnet 10.42.66.66" on the black screen
- Manage the connection between phone and Windows PC
- connect the phone with a pc via usb (in my case a Dell 830 Win 8)
- a standard driver will be installed
- so wait until the device manager will show this as device "RNDIS" under "Other Devices" (can take some time)
- update manual the driver with a "Remote NDIS Compatible Device" from Microsoft
- then install putty from here: http://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html
- Start Putty
- set Host Name to "10.42.66.66"
- select "Telnet" as the Connection type
- select "only on clean exit"
- select the button "Open"
4 Recovery Mode 2.0 is starting as a windows like a dos windows
- input Number 3 + Enter for using shell
- select "Y" for execute this function
- if you have a lock code input it (do not be surprised, nothing is displayed in the window) + Enter
- if it correct you will see "acepted"
- now use command "chroot /rootfs" + Enter (in this version of recovery mode you don't need mount commands)
- to deactivate all patches you input "patchmanager --unapply-all" + Enter
- you will see a list of all unapply patches (with ".../n" on the end)
- input two times "exit" + Enter
- Unplug the usb connection
- Restart the phone and it will work
The important thinks I have from here also that sometimes is necessary to reinstall "lipstick-jolla-home-qt5 package" after unapply patches.
I try this but it doesn't work "...no connection to package..." Maybe it is a other way with 2.1.1.26 or this work not in shell. I am also not shure if the first line was also a reason for fixing of my bug because it was possible.
I use this codes:
ssu re 2.1.1.26
ssu ur
pkcon refresh
pkcon install lipstick-jolla-home-qt5
I hope it will be helps all other Jolla fans...
Update 2017-09-06:
It works without reinstall lipstick. I had this white screnn two times again if I search the false patch. Now it was it only 2 min for unpatching in recovery mode. After the line to unpatch you have to wait some times, because this take a while.
Update 2017-09-09:
The reason for the white screen bug is the patch "animated ambience".
Don't use this with 2.1.1.26!
I found it out with activating patch for patch.
