Can I do restore firmware for Egreat EG-S2

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Can I do restore firmware for Egreat EG-S2

Postby hdmi on Sun Aug 01, 2010 20:50

Dear Anatol, Reyter, and friends,

I have one Egreat EG-S2 (http://www.egreatworld.com/en/ProductShow.asp?ID=180) that use Sigma 8643 CPU. It is same as Allure M3 (http://www.hdmei.com/?page_id=41). The original firmware is modified HDI Dune 3.0 firmware, I think.

Last week I bricked the EG-S2 when tried to flash C200 firmware on it, as guided by this tutorial http://digital8.org/hd-tips-guides/how- ... -1180.html

Do you think I can apply same method of restoring HDX-BD1 for restoring the EG-S2? I will do it with a SE DCU-11 cable, or Nokia CA-42 cable.

Thanks for your helps,

HDMI.
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Re: Can I do restore firmware for Egreat EG-S2

Postby None on Sun Aug 01, 2010 21:34

hdmi wrote:I have one Egreat EG-S2. The original firmware is modified HDI Dune 3.0 firmware, I think.
Do you think I can apply same method of restoring HDX-BD1 for restoring the EG-S2? I will do it with a SE DCU-11 cable, or Nokia CA-42 cable.
We have no experience of restoration Egreat. It is rather probable that the restoration method will be approximately that most, but you are waited for by difficulty with definition of serial number for stolen firmware from Dune.
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Re: Can I do restore firmware for Egreat EG-S2

Postby 876 on Mon Aug 02, 2010 02:56

egreat s2 have serial connector on board ??? and please make high res photo of PCB
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Re: Can I do restore firmware for Egreat EG-S2

Postby hdmi on Mon Aug 02, 2010 09:33

Dear friends,
I attach here the photos of both sides of PCB. There are UART0 and UART1 areas.
On side 2, at the right edge there is a switch named SW1, but I don't know what it use for.
Can you please investigate the photos?
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Re: Can I do restore firmware for Egreat EG-S2

Postby None on Mon Aug 02, 2010 11:59

hdmi wrote:Can you please investigate the photos?
Obviously, you have to wonder UART0. To determine the lines RX, TX, +5 V, GND should use a multimeter, a line of TX has a potential of about 3,3 V, a RX, will have to determine empirically. It is likely that the trace coincides with the popcorn c200:
+-----------+
2| * * * * * |10
1| * * * * * |9
\-----------+
J7 UART0
/---------------------/ board edge
Pin Function
1 +5V
5 Rx
6 Tx
10 GND
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Re: Can I do restore firmware for Egreat EG-S2

Postby hdmi on Mon Aug 02, 2010 12:23

Thanks Anatol. I will take a multimeter to determine the UART0 pin out. Then post the result tomorrow.
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Re: Can I do restore firmware for Egreat EG-S2

Postby hdmi on Mon Aug 02, 2010 14:16

Hi Anatol,

The pin out of UART0 is the same with your schematic

+-----------+
2| * * * * * |10
1| * * * * * |9
\-----------+

In which:

1 +5V
6 TX (+3V)
10 GND

I could not determine RX :P

What will I do next?
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Re: Can I do restore firmware for Egreat EG-S2

Postby 876 on Mon Aug 02, 2010 15:13

rx and tx on central contacts - try on uart 0 if not working try revert rx/tx and after this if not working try uart1
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Re: Can I do restore firmware for Egreat EG-S2

Postby hdmi on Mon Aug 02, 2010 15:59

Yes, 876. Using multimeter I known pin 6 is TX, and according to Anatol's experience, pin 5 should be RX.

But what I do next?

Can I go further with C200 firmware, by applying this guide? http://support.popcornhour.com/article.aspx?id=1089

Can I come back to S2 original firmware, with mobile phone USB cable and YAMON SATA boot?
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Re: Can I do restore firmware for Egreat EG-S2

Postby 876 on Mon Aug 02, 2010 17:09

next - connect your serial usb cable and you must see logs from your terminal software when player boots ( putty , hyperterminal , zoc e t с) , after this you must use sata boot and booting , next backup your zxenv area from tftp ( and check s.ss key in it) , format your nand , restore zxenv and linux safe kernel from c200 firmware , if success - use original update from c200 and after this use it or restore original S2 firmware
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