Support for DSR922 (4dtv)

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Expand view Topic review: Support for DSR922 (4dtv)

by wolffie454 » Tue May 10, 2011 6:52 am

Are we talking about 405, 410, or 922 here??? I have dump for it

Flash Dump ?

by Harry181 » Thu Apr 28, 2011 1:41 pm

Anyone get a full dump?

by usbbdm » Sun Apr 10, 2011 10:56 pm

Pichardo wrote:I have a DSR410 too, what "flash def" do you use to dump it?

Can you share with us ?

Thankz in advanced . . .
You should just select DSR405.


by Pichardo » Sun Apr 10, 2011 10:15 pm

usbbdm wrote:No. I think I have one box that is either 410 or 405. So the dump is not a problem.
I have a DSR410 too, what "flash def" do you use to dump it?

Can you share with us ?

Thankz in advanced . . .

by wolffie454 » Sat Apr 09, 2011 7:29 am

I have F/W from my box, but it won't let me write it back. I am not sure why if it is a checksum issue or what. I have looked through the directions, etc here but unable to find useful info on what I need to do to download F/W back to the box. F/W is useless without ability to reload to box. If someone would be so kind as to tell me what I need to do or where it is posted, it would be appreciated. I have no problem reloading/modifying the NVRAM BTW and have been doing experiments with it lately. Need to modify stock tiles and be able to load back to box the flash.

I also need to know how to turn updates off if someone has any idea.

Firmware Dissasembly ?

by Harry181 » Sat Apr 02, 2011 2:59 am

Anyone interested in taking a look at the Firmware to try and get it mapped?
If you are, I'll PM you one from *C

by usbbdm » Wed Mar 30, 2011 7:50 am

Harry181 wrote:Hey Boss , if you need any dumps from a 405, let me know.
No. I think I have one box that is either 410 or 405. So the dump is not a problem.

Hey Boss if you Need?

by Harry181 » Wed Mar 30, 2011 12:08 am

Hey Boss , if you need any dumps from a 405, let me know.

by wolffie454 » Mon Mar 28, 2011 8:55 am

What I would like to see
1. Ability to open all ZK, FP channels like we used to have
2. Ability to synch the $%^& clock like it used to be, it didn't use to update everytime I changed satellite.
3. This should have been #1-Turn off all updating. I played around and did a few tricks to only have them wiped out on either satellite GB or G5. We need to turn off updating from the stream (or turn back on if needed)

BTW, my end goal is not to get free channels. I have DirecTV anyway for the family and general programming. But, satellite is my hobby and, hey, if I can get a feww channels they won't even let me pay for i.e Discovery or Playboy, I'll be a happy camper.:)

I am pretty sure there is a way to turn off updating and also to make box think it is subbed to a channel or channel is in FP mode.... Wish I knew how.

by merkin » Wed Mar 23, 2011 8:00 pm

usbbdm wrote:You wan to do some
1. SPI capture?
2. Fake UID like DCT2224?
3. Add some remote features?
1. 4dtv subscribers can send there own hits via websams. Sure beats phoning them.

2. 4dtv uses monthly category keys, good luck.

3. Like adding satellites and manual tuning? (similar to DSR's with "business mode" option)

by wolffie454 » Wed Mar 23, 2011 11:10 am

Yes, Whatever "tricks" can be pulled would be "awesome". I am still trying to send them your way boss.

My friend sent you a test box, have you discovered anything in the f/w to auth channels, etc. If you want me to test anything on my end let me know, shouldnt be a problem. I am getting full NVRAM dumps now with g then bk commands.

Dissasembly ...

by Harry181 » Tue Mar 22, 2011 11:16 pm

Yes Boss, Fake UID, Activate Box the same as DCT's that would be awsome !!!

by usbbdm » Tue Mar 22, 2011 7:50 am

Harry181 wrote:Anyone had any luck with the Dissasembly of NVRAM?
NVRAM cannot be disassembled. Only the firmware can be disassembled.
What is the goal to disassemble the firmware? You wan to do some
1. SPI capture?
2. Fake UID like DCT2224?
3. Add some remote features?

Dissasembly of NVRAM

by Harry181 » Mon Mar 21, 2011 11:12 pm

Anyone had any luck with the Dissasembly of NVRAM?

by wolffie454 » Mon Mar 07, 2011 4:48 pm

merkin wrote:Sorry, I thought you understood what I have been saying this entire time. No wonder why you have trouble...
Flash memory IS the NVRAM (NVRAM IS NON-VOLATILE hence the "NV")
SRAM is volatile (Loses all its data once power is gone)
And according to the datasheet of the SRAM on the DSR's...well here is the quote,
"The families also support low data retention voltage for BATTEERY back-up operation..."
I think we are saying the same thing, just different ways.

"I have noticed the stock tiles in flash memory, so this is not where that data (sat tiles/factory analog only CDT's, etc.) is actually stored?

Maybe I am way off base here, but isn't what we are calling NVRAM actually SRAM because that data is lost with a Master Reset, and the non-volatile is the flash RAM? Also the 922 has RAM, which I have seen is only temporary storage (so aptly named) with name of current program on the VC and next program, etc etc."

Static RAM is lost with loss of power/reset. NVRAM is not. However, some SRAM must be battery backed as boss said, otherwise current maps would be lost everytime you unplugged the unit. Only thing I noticed back when unit was subbed is that sometimes it would require a rehit and trip counter would go back to 0. NVRAM (aka FLASH) stores only the stock tiles and analog descriptors, correct?

Sorry, I am sometimes a glutton for punishment because I WILL ASK QUESTIONS when not fully understanding such as these locations.

Another thing what is labeled "FLASH" can be easily uploaded from the IRD, it includes the F/W which is for mine v. EC. Now when FLASH is uploaded, you won't get "RAM" or "NVRAM" until you issue the "init" command, which I assume from reading that box is then in read chip select mode, and is until it is reset or power cycled.

Maybe boss will write another version of USBBDM NT with tabs named after the DSR922's hardware and locations. I don't care as long as memory can be accessed and backed up.

Boss, if you anything from me, I have several backups of flash, NVRAM, and RAM areas from different dates, including when I had box authorization.

Now, back to working on the refrigerator, defrost heatstrip went out, PITA!!