THE Rikomagic MK802 II Recovery How to, Tools, Firmware and Benchmarks

[javieros]

I have used the Rikomagic without the Picochess image to watch movies on the TV set, surf the internet, use Google Maps and play with the Android games from the Play Market of Google.

I have installed also Chess Genius and Chess Shredder on it.

Yesterday, I used the Rikomagic with Picochess image and I had problems to boot and one of the times it booted well, with Picochess running, it hang at move 5 of the game.

I wonder if these problems are related with using Rikomagic with Android. Really when you install apps and change the configuration the system is writing in the internal memory information and this information may collide with the information written in Picochess linux, that also writes to "disk" (internal memory) for example the wifi settings.

So I have searched and found this link to recovery Rikomagic MK802II to its initial state.

http://www.rikomagic.co.uk/forum/viewtopic.php?f=2&t=449

Before do it, I want to know the opinion of Jean-Francois and Shiv

Javier

[Jean-Francois Romang]

Hello Javier, there is no need to recover your Rikomagic ; Pico is 100% independant from the android OS. It is most likely a pico bug...we have to catch it. Did it hang in book mode ?

2012/11/5 javieros <javi...@us.es>

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[javieros]

Yes, it was in book mode. 

It is very easy to save the log with Putty settings and I have the log of the above session, I will publish here when I will arrive home.

Looking at the screen I have noted that sometimes the clock is frozen and the screen has no refreshing and other times the clock is running with the screen refreshing very fast.

I like very much the message "ponderhit!!" :)

Javier

[javieros]

Here it is

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2012.11.04 20:30:28 =~=~=~=~=~=~=~=~=~=~=~=

login as: miniand

min...@192.168.0.198's password: 

Access denied

min...@192.168.0.198's password: 

Welcome to Ubuntu 12.04 LTS (GNU/Linux 3.0.36-t1+ armv7l)

 * Documentation:  https://help.ubuntu.com/

Last login: Sun Nov  4 21:46:37 2012 from j-pc.local

]0;miniand@miniand: ~ miniand@miniand:~$ sudo su

[sudo] password for miniand: 

]0;root@miniand: /home/miniand root@miniand:/home/miniand# screen -D -R -S 521.sf ls [K

There is a screen on:

520.sf (05/11/12 03:28:59) (Detached)

1 Socket in /var/run/screen/S-root.

]0;root@miniand: /home/miniand root@miniand:/home/miniand# screen -ls D -R -S 521.sf 01.sf [1P.sf

[?1049h [r [m [2J [H [?7h [?1;4;6l [4l [?1h = [0m (B [1;24r [H [2J [H [2JSending message:performance

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:q removed from B5 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (q on G4) to the engine

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:Q added on F5 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (Q on C4) to the engine

rnbqkbnr/pppppppp/8/8/2Q5/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

Sending message:bli500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:Q removed from F5 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (Q on C4) to the engine 

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:Q added on E5 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (Q on D4) to the engine 

rnbqkbnr/pppppppp/8/8/3Q4/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

Sending message:bli000

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:Q removed from E5 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (Q on D4) to the engine 

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:Q added on D5 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (Q on E4) to the engine 

rnbqkbnr/pppppppp/8/8/4Q3/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

Sending message:bli500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:Q removed from D5 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (Q on E4) to the engine 

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:k removed from D1 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (k on E8) to the engine 

rnbq1bnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

You play black

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:k added on D1 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (k on E8) to the engine 

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:0

Sending message:  book

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

[c2 c4 ]

Sending message:c2 c4 

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:P removed from F7 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (P on C2) to the engine 

rnbqkbnr/pppppppp/8/8/8/8/PP1PPPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:P added on F5 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (P on C4) to the engine 

rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:0

Sending message:459500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

Sending message:458500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

Sending message:457500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

Sending message:456500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

Sending message:455500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

Sending message:454500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:n removed from B1 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (n on G8) to the engine 

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:n added on C3 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (n on F6) to the engine 

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

rnbqkb1r/pppppppp/5n2/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:4013

Sending message:  book

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

[d2 d4 ]

Sending message:d2 d4 

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:P removed from E7 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (P on D2) to the engine 

rnbqkb1r/pppppppp/5n2/8/2P5/8/PP2PPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:P added on E5 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (P on D4) to the engine 

rnbqkb1r/pppppppp/5n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:0

Sending message:453500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

Sending message:452500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:p removed from D2 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (p on E7) to the engine 

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:p added on D3 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (p on E6) to the engine 

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

rnbqkb1r/pppp1ppp/4pn2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 0 1

-------------------------Move:3372

Sending message:  book

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

[g1 f3 ]

Sending message:g1 f3 

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:N removed from B8 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (N on G1) to the engine 

rnbqkb1r/pppp1ppp/4pn2/8/2PP4/8/PP2PPPP/RNBQKB1R w KQkq - 0 1

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:N added on C6 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (N on F3) to the engine 

rnbqkb1r/pppp1ppp/4pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 1

-------------------------Move:0

Sending message:451500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:p removed from E2 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (p on D7) to the engine 

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

Sending message:450500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:p added on E4 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (p on D5) to the engine 

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

rnbqkb1r/ppp2ppp/4pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 1

-------------------------Move:0

rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 1

-------------------------Move:3299

Sending message:  book

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

[b1 c3 ]

Sending message:b1 c3 

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:N removed from G8 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (N on B1) to the engine 

rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/5N2/PP2PPPP/R1BQKB1R w KQkq - 0 1

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:N added on F6 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (N on C3) to the engine 

rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 0 1

-------------------------Move:0

Sending message:449500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

Sending message:448500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:p removed from F2 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (p on C7) to the engine 

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:p added on F3 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (p on C6) to the engine 

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 0 1

-------------------------Move:3242

Sending message:  book

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

[e2 e3 ]

Sending message:e2 e3 

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:P removed from D7 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_REMOVE (P on E2) to the engine 

rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N2N2/PP3PPP/R1BQKB1R w KQkq - 0 1

-------------------------Move:0

dgtnix-debug:Received _DGTNIX_FIELD_UPDATE from the board

dgtnix-debug:P added on D6 on the board

dgtnix-debug:Sending DGTNIX_MSG_MV_ADD (P on E3) to the engine 

rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - 0 1

-------------------------Move:0

Sending message:446500

dgtnix-debug:Sending message to clock

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

dgtnix-debug:Received _DGTNIX_BWTIME from the board

dgtnix-debug:clock ACK received

Sending message:445500

dgtnix-debug:Sending message to clock

dgtnix-debug:invalid message -4- int readMessageFromBoard(int g_descriptorDriverBoard) :�

dgtnixManagerFunc:read error

dgtnix critical:sendMessageToClock: write() error

: Bad file descriptor

dgtnix-debug:dgtnix_errno:Bad file descriptor:close() < 0

[?1l > [24;1H

[?1049l[screen is terminating]

]0;root@miniand: /home/miniand root@miniand:/home/miniand# screen -D -R -S 520.sf ls [K

No Sockets found in /var/run/screen/S-root.

]0;root@miniand: /home/miniand root@miniand:/home/miniand# 

[Shivkumar Shivaji]

Great to have a log. The information at the end is quite useful. Not sure why its happening this time. Jean will probably have ideas relating to number of messages/events sent to the clock and board.

Sending message:445500

dgtnix-debug:Sending message to clock

dgtnix-debug:invalid message -4- int readMessageFromBoard(int g_descriptorDriverBoard) :�

dgtnixManagerFunc:read error

dgtnix critical:sendMessageToClock: write() error

: Bad file descriptor

dgtnix-debug:dgtnix_errno:Bad file descriptor:close() < 0

Jean, when looking at the above log and the relevant code, I see that if a bad message is read from the board, pico chess essentially terminates. Maybe bad messages should never occur (and the cause can be debugged and fixed). I also wonder if it makes sense to try to do a reconnect to the board if a bad message is received rather than terminating. 

Javier, I wonder if your o-droidx problems are related to the same cause. Can you get a log from your o-droidx as well? I am attaching a screenshot of how to connect your odroid-x to wifi. Getting a log should be very similar excepting that the username for the o-droidx is "linaro".

Shiv

[javieros]

Thank you Shiv, finally I have connected it via ethernet and after played several games there were no problems.

Javier

[Jean-Francois Romang]

I suspect this is a USB cable problem ; be I may be wrong.
You are right Shiv, pico should try to reconnect when it enconters such errors (even if you plug/unplug the board). Something more on the to do list :-)

2012/11/6 javieros <javi...@us.es>