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Author Topic: U-boot corrupted. Looking for recovery procedure  (Read 5883 times)

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August 22, 2013, 12:33:53 pm
My nch536mw is equipped with RS232 TTL.

RS232 was running smoothly and I was able Log with hyper terminal.

Unfortunately, during a flash procedure (NCH536MW to FI9820W), I corrupted my U-boot.

Now, HyperTerminal don't see anything while the camera is powering On. Nothing happend. My IPCam is dead :-)

I am a software engineered with lot of tools  available...

Is there any recovery procedure for U-boot 1.1.4?

Looking forward to your help. Thanks!

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August 23, 2013, 02:17:34 am
hmmm, that would require "real" jtag (miso, mosi, clk, rst etc) and not just rs232.
I don't remember having read about this ... questionable if all the needed pins are accessible on the board

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August 23, 2013, 05:58:39 am
Thanks for your input.
That is exactly what I thought: I should directly reprogram the Flash Memory.
I have a JTAG interface or what ever it can be but I miss the procedure, pin location and HEXA files.

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July 24, 2017, 07:51:01 am
Hi my friend,

You had success on booting from SD Card?

I have the same problem now.. :(

Thanks and regards

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July 28, 2017, 01:36:53 pm
Whats the SoC?

Some of the more modern SoC's can do recovery via USB boot.
If not, you'll need an SPI flasher or similar to rewrite the uboot directly onto the flash, eg with a BusPirate or dedicated device.