GS290 full backup/recovery

[aibd]

Hi @v.podzimek, welcome!

For TWRP you might read this post.

Gigaset GS290, how to root and install ZIP files?

@chrisphl, thank you for your reply! There are many with semi-bricked GS290 who then appear to brick them by using SP flashtool! I would very much like to see how we could assist some GS290 owners by writing a recovery solution, perhaps with TWRP? Post script edit. What follows is a small walkthrough of a suggested method of rescue for GS290. Although this thread is originally titled “how to root and install ZIP files” the proposed rescue method which follows does not use use or expect root. …

… and do be sure to use the search on this forum, many posts share the tag gs290 (seen at the top of your post)