I tried to upgrade once again with version 7.07 and after 40% device restarted and never came back from boot screen. I see green light flashing inside the housing but nothing is happening. Is there a way to restore it back or will I have to send it back for service?
It is very clearly said in every place. After 8.01 can NOT downgrade.
In first place.
And all times when do what ever FW update it need do using USB stick what really works reliable with equipment and it need be true proofed with tests BEFORE any attempt to FW update. This is so clear thing that this do not need write instructions.
Also, least with every other Siglent equipment. USB need be in native FAT32 format. It must have single partition. Its connection to USB bus need be as reliable as also power to oscilloscope. During whole update process, do not touch USB (for avoid any possible contact fail)
Also after stored .ADS file to USB stick it is very good practice to check it match with original unzipped file.
During FW update from 7 to 8 version SSA do several self restarts (boots) before it is ready.
It do not really take 20min. So in first place something have gone wrong.
I have updated more than one SSA (and whole load of other Siglent equipments and never meet any problem) and update works just rock solid when do it exactly as instructions and out from instructions of course first be sure that USB is sure ok and update .ADS file is exactly ok in root of USB.
What was idea for update 7.07 after failed 8.01 update.Why? Just for fun or with some knowleedge what to do. Is it better first study and after then think what to do.
Now, do NOT ANYTHING more before you know exatly what is safe to do next.
One question.
You say you have modified 7.07 before you start update FW update for 8.01
Who told you this can do and is it possible there have been some exeption when you have done it - example accidentally. There is several possible modifications and methods in FW 7 versions. It need know exactly what can do and what can not do, except if you can yourself analyze what can and what not.
Do you remmeber if there was perhaps h letter after FW version number last time before this all..
I "can not" give any instructions how to continue.
But two questions and depending your answer perhaps some peoples here can try kindly help you.
But at this time my recommendation is: do not try update any more or change anything before there is real knowledge what to do next for avoid possible more deep problems. Q 1.: Do you have reliable copy of original some files (before any first change in system).
Q 2.: Do you have now normal access to SSA system (via LAN) with PC or what ever telnet terminal? Or is SSA now as "dead"?