DSO Quad Bootloader corrupted

--DSO203

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johnypean
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Re: DSO Quad Bootloader corrupted

Post by johnypean » Fri Feb 20, 2015 8:57 pm

Hello,

just checking if someone has used the FLDump app from bobtidey on a working DSO with HW 2.81. Or dumped the image through CN7 with serial connection.

wagnermerle
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Re: DSO Quad Bootloader corrupted

Post by wagnermerle » Mon Mar 02, 2015 1:00 am

Checkout the upload I created:

http://www.seeedstudio.com/forum/viewto ... =26&t=5629

Merle

johnypean
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Re: DSO Quad Bootloader corrupted

Post by johnypean » Mon Mar 09, 2015 5:59 pm

Tank you,
I was too eager to get it working and was probably trying too hard. In the end my device died on me. As it seems one coil (USB power L7) and power stabilizer (U15) for 2,8V have gone bad probably because I used the same computer for power and serial connection. Looking at the schematics, that was probably a bad idea. Accidentaly shorting the pin 1 on CN7 durring programming would explain things too, but i have taken precausions for that, so not sure. I don't know if I will be able to recover this device, but probably not. I managed to make a full system backup (although it's the corrupted state) if anyone is interested. I also confirmed that I was able to restore to that state comletely. My plan was to rewrite all available parts of it and flash it back. With this, I would probably get it working. A little more patience would help. ;-)

sir5
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Re: DSO Quad Bootloader corrupted

Post by sir5 » Tue Jul 21, 2015 7:59 am

can anybody post a complete firmware for hw2.72 8mb?

I have a blank dead screen without solution

8mqej3p
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Re: DSO Quad Bootloader corrupted

Post by 8mqej3p » Thu Jul 28, 2016 12:21 pm

sir5 wrote:can anybody post a complete firmware for hw2.72 8mb?
I can do that for you. I have the same HW. But ... I have to do some more steps for it:
1. Dump the bootloader in HEX - already done using FlDump by bobtidey, http://www.seeed.cc/topic_detail.html?id=1601.
2. Rip off my serial number from it (or just replace with some random numbers) - maybe someone can help me with this? (some tips about offsets, etc.)
3. Convert HEX dump to BIN format - need some help too, currently I'm waiting for wagnermerle's help to find some software to do it. http://www.seeedstudio.com/forum/viewto ... =26&t=5629
sir5 wrote:I have a blank dead screen without solution
Have you got a USB-TTL adapter? Have you tryed to connect (to your DSO) in Bootloader Serial mode?

8mqej3p
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Re: DSO Quad Bootloader corrupted

Post by 8mqej3p » Fri Jul 29, 2016 6:37 pm

embedded wrote:... Hardware Serial number. In order to know it you can use the SYS FW 2.50 I modified to show you at startup the License number further to the Serial number.
Can you plz tell us how to find the HW serial and License number in DFU dump? Offset? Or maybe you can open your sources of modified SYS250a.hex? At least, the part which reads the License number.

And what if I know my serial and license numbers - any idea how to restore them after DFU flashing?

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