Adventures with a 7200

[Nefarious]

Greetings all!

Long time reader, first time poster :)

I've been a little leary about posting in forums since Dave and Charlie started collecting info from them.... I used pretty acrtive at hitec's site till it dissapeared. This site is awsome and the people in the forums are some truly L33T folks! :)

Anyway, after 3 years of loyal service with a 3m my 7200 w/h a rom 2 was hit with all the others. (yeah, no lock, dumbass move). It was a long run and I'm grateful to let my programmers gather some dust :) After the hit it was back to waiting and reading and hoping one of you all would find a fix. Is usual you all came through with the tsop swap method!

So, I'm 90% into this and I have a couple of questions about the programming. Hers what I've got so far-

1- took an old 3700 and removed the tsop

2- bought a few sockets and mounted the 3700 tsop back in the ird with a socket. The IDR green light came on and everything was cool. I could read the tsop and write to it. I compared the dumps from before and after the socket and they are identical.
(word to the wise! if you dont have a hot air gun use a torch to get the socket mounted correctly. A small soldering iron is fine for tacking it in place but its way to hard to get it heated well enough w/o melting the hinges of the socket with the iron. If you use a torch make sure you protect the socket or it will melt quick! I used aluminum foil. Fold the foil over a few times to make it thick, mold it over the socket leaving only a small area between the hinges and the pins exposed for heating. Afterwards, remove the foil immediatly. Use something to genltly press the socket down while heating. I used the blunt end of my xacto knife. Unless you get the socket soldered well you will never get a good read on the chip!!)

3- I modded the IRD to supply 5v to the tsop (very good guides on this site) I put a switch in so I can use 3v or 5v tsops.

4- I pulled the tsop from my 7200. (nerve racking, have a few beers first :rolleyes: ) and mounted it in the socket.

5- I d/l the j-keys def file for the 2700/7200
(this file is only compatible with the latest version of j-keys!!)

6- I was able to do a full dump of the chip. I opened it up in the flashedit and everything was there, ird # box keys, good crc.

And thats where I'm at.

What I need to know is can I edit the ecm out by erasing a sector in j-keys like other irds or should I use HexEdit and just fff the affected area? Since I dont have a buffered j-tag I'd rather use j-keys so I dont have to write the whole tsop.

Also, once I get it back together and put the mic lock on it, will it still take the guide updates every week? If they send an update I need how will I know?

Anyway, thanks for all the info

[Nefarious]

Also, anybody know why theres a 32 pin tsop pad overlaping the 48pin on the 7200 board?

Oh, BTW, I thought it somewhat humorous that there a picture of a ship with a pirate flag in the 3700 PBC :)

[Nefarious]

anybody know If I can erase the ecm from a 7200 tsop with jkeys but just erasing 1 sector?

[farmboy491]

Change Address 0x6162e..0x61632 from the value "78 88 B4 4F 14" to "FF FF FF FF FF". then write the bin back to the 7200 tsop.

[Nefarious]

Change Address 0x6162e..0x61632 from the value "78 88 B4 4F 14" to "FF FF FF FF FF". then write the bin back to the 7200 tsop.

so no easy jkey sector erase? Bummer....

Ok, did that, wrote it back, time to socket the dp and see it if works.

Oh, and in jkeys, when you go to write make sure it sees it as 7ff00000 and not 7ff80000 or youll get an error writting..

[md2020]

so no easy jkey sector erase? Bummer....

Ok, did that, wrote it back, time to socket the dp and see it if works.

Oh, and in jkeys, when you go to write make sure it sees it as 7ff00000 and not 7ff80000 or youll get an error writting..


there are also several 7200 bins you can test with
or post yours with bigus cam machine ID -

-
if you have the new update that would be appreciated I bet >:)

[md2020]

oh
t109 to ground for the tsop lock when you deciede to put back into the stream.


109 is clearly written on the side of the tsop nearest the front.. see it
you can run a wire from that to one of the outputs (say Mic seems to be a popular one) or just to DGN the ground see that just infron and to the left thats ground or to the chassil where there is a good ground...


I wonder why no one puts a QnD (quick and Dirty) jtag for the 7100 and 7200

[JT]

You meant TP109...but otherwise good advice.

[Nefarious]

Whats a QND Jtag on a 7200?


Well, my 7200 may be a casualty of war... I accidentally lifted the pad to pin 16 or 17 when working on the socket :cry: I dont think I'm cool enough to get a wire soldered onto that tiny ass pin and it just sits there and blinks at me, occasionally making a black screen before rebooting and blinking some more....


However, I have 2 7100's that have been out of the stream for a year or more. They were given to me with looped cards. Rom2 and Rom 3, either dealer locked or so looped theres not even a good atr so I never did anything with them, untill now since I dont have a sombrero.

I pulled the tsop in one and dumped it to get the keys. Put in the socket and BAM! I'm watchin tv! :)

I also put in the mic lock. I almost hosed the mic lock because I assumed it was a hole through and not just a pad. But with a nice lump of solder it came through.

I made a rom2 for it with no blocker and just a base package top 120 to try and get it to update.

Over night it updated from 123 to 124 and I'm watchin tv again!

Will the lock stop it from getting the guide updates? I've never used a lock before so I dont know what to expect. When should I unlock it to take updates?

Also, does anyone know what the difference is between a 7200 and 7100? Could I flash my 7100 with the 7200 SW and make it a 7200?

Anything special I need to put on the rom2 before I open it up for the 7100?

[rxry]

Funny, I have a JYF 7100 that hangs every night trying to take the 3am update. I have gotten into the habit of pulling power before that event and the next day it works fine except no nine day foward guide. I have not removed the card and tsop lock for an experiment. Anyone else tried this with success. Rumor that JYF 7100 have residual code left on tsop that interfers with normal operation. I sure do not have use of PVR at this time because it looks for the forward guide.

[dishnewguy]

rxry, what software are you at 122 123 or 124 or other?

[Nefarious]

Hmm, did another last night. This one is a bit weird. In sys info the model # is blank and its at 123p. Works fine with lock on, left lock off last night but no update this morning?

[rxry]

rxry, what software are you at 122 123 or 124 or other?


I am a 123 update and 2.3.4.5

[Nefarious]

Hmm, put the origional 7100 HD back in and it sees it as a 7100... The other HD was from a 7200, guess that confuses it.

I'm watching and the mic lock is working but it freezes up once in a while or resets to channel 101. Im still at 123p. Is it the ecm that is doing the freezing?

I pull the card and turn the lock off every night but still no 124p :(

I have another 7100 that was out of the stream for a long time. I want to socket that one and read it to get the keys. I put it in the stream with no card and it didnt update... put it in with a rom2 with no tiers and only the correct ird # on it and it took the update without ecm.

Are you all sure it will take the update w/o the (a) card in?

[dishnewguy]

I did a hd upgrade to my 7100, put a 40 gig in, let it phone home with no card in, took about 40 min to update microshaft, it works great at 124, but it still doesn't know what model number it is. I use TCFD V 1.07 (Newest) now my 7100 is flying great, no freezes or blackouts.

[Nefarious]

yeah, just makes me a bit leary to call Bill on my home phone number linking me to an IRD :)

I tried leaving the card out and lock off all day yesterday and no luck, then I did the reset code and its giving me like channel 201 and 1, then I did a guide DL, ane see the channels but no info. Hmmm, maybe the software on the HD is too different form the tsop to sync. It still shows the game in the guide and webtv. Werent those out by 123? Maybe I'll have to block the callerid and dial Billy up :p

[CRASHER]

Just copy the image, from web to the harddrive, it takes about 10min. to do that. I installed 60G on 7200. It is working like charm for a month now at rev.124. With receiver model as unknown.
Strangely my webtv s/w updated to 17000, and I never connected ph. line

[maxheadroom]

Anyone else doing the reflash on the 7200 with success?