Thank you so much @Lufus the script works great!!
My partitions now look like this (sudo sfdisk -d /dev/mmcblk0):
label: gpt
label-id: 00000000-0000-0000-0000-000000000000
device: /dev/mmcblk0
unit: sectors
first-lba: 40
last-lba: 62333918
table-length: 14
/dev/mmcblk0p1 : start= 40, size= 62326288, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=8A2ADA49-3FD8-4F7C-B138-6BAAE7774F7C, name="APP"
/dev/mmcblk0p2 : start= 62326328, size= 256, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=0A5E07F4-9725-4C97-9B33-6727E2FEF753, name="TBC"
/dev/mmcblk0p3 : start= 62326584, size= 896, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=3448C881-CACC-4495-8523-340BDE3AFB06, name="RP1"
/dev/mmcblk0p4 : start= 62327480, size= 1152, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=4132DC35-27A1-4AD2-864B-1D08A4648A78, name="EBT"
/dev/mmcblk0p5 : start= 62328632, size= 128, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=3890BB3E-95F5-4EFE-87FC-3732C0390C05, name="WB0"
/dev/mmcblk0p6 : start= 62328760, size= 384, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=34BAC152-7522-4E08-81CA-D72D1D7A0973, name="BPF"
/dev/mmcblk0p7 : start= 62329144, size= 768, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=0FDC96F9-F479-4B19-A4FB-8D50BA2BF077, name="BPF-DTB"
/dev/mmcblk0p8 : start= 62329912, size= 128, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=20634AB4-472F-4432-95EC-662F1DE5882C, name="FX"
/dev/mmcblk0p9 : start= 62330040, size= 896, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=6532865C-391D-40CD-95AD-CF5F518E906F, name="TOS"
/dev/mmcblk0p10 : start= 62330936, size= 896, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=6D64D042-E0B1-4736-B38D-8843C398AD21, name="DTB"
/dev/mmcblk0p11 : start= 62331832, size= 1536, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=7BCCAB7D-B038-4EBC-A2D3-A828B387FF3C, name="LNX"
/dev/mmcblk0p12 : start= 62333368, size= 128, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=698ED7DA-1F68-40C6-97EC-893518931F22, name="EKS"
/dev/mmcblk0p13 : start= 62333496, size= 160, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=7FC4B55E-E91F-47C1-98CC-2B27B0767F34, name="BMP"
/dev/mmcblk0p14 : start= 62333656, size= 257, type=EBD0A0A2-B9E5-4433-87C0-68B6B72699C7, uuid=35CA5E41-9759-4503-8DF0-88273AF5A645, name="RP4"
I commented out the last line in your script where the backup file is removed, but it was not necessary to revert. Very happy now being able to use the additional space on the SD card :-) Thx again!
