Hello
after days of searching and trying I finally solved my problem with my Voltcraft ds0-1102D oscilloscop!
I found a lot of useful information on this forum and want to share my solution to contribute to this valuable source of knowledge:
The problem started with an attempt to upgrade the firmware with a file downloaded from
http://voltcraftdownload.info/Default.aspx?modelno=DSO-1102D (DO NOT USE THIS!)
After the Update, the scope would only display the boot screen and be stuck there.
my Solution:
-) download firmware from Hantek:
http://www.hantek.com/en/ProductDetail_3.htmlDSO5102B for DSO1102D
DSO5202B for DSO1202D
DSO5062B for DSO1062D
-) unzip DSO5102B_Firmware.zip
-> dso5kb_func_dso5102b20180226.up
-) decrypt:
gpg -o dso5102B.tar.gz -d dso5kb_func_dso5102b20180226.up
(password dso5000b)
(some errors and warnings seem not to matter...)
-) gunzip dso5102B.tar.gz
-> dso5102B.tar
-) tar -xvf dso5102B.tar
-> dso5kb_func_dso5202b20180228.up.tar (seems to be the same for dso1102D and dso1202D)
-) tar -xvf dso5kb_func_dso5202b20180228.up.tar
-> tekwayup_client (directory) und upend (text file)
-)copy the tekwayup_client directory to a USB stick
-) connect Oszilloskop per Serial TTL to your computer.
-) start your serial terminal programm (putty 115200B, 8n1)
-) switch on the oscilloscop (don't touch the power supply!)
(following commands should run on the scope)
copy the directory tekwayup_client to /tmp/ :
-) cp -R /mnt/udisk/tekway_client /tmp
-) chmod 777 /tmp/tekwayup_client/packet/do_update.sh
run the update:
-) /tmp/tekwayup_client/packet/do_update.sh
-) sync
-) sync
... and your scope should be fine again!