Mili's TSOP Quick Fix

[mangoop]

I'm still learning about the whole JTAG process and the issue of doing a quick fix if you get ECM'd. I was reading this part on the how to instructions on Mili's TSOP Quick Fix:

Now if They hit your receiver's TSOP you can restore it fully with the saved file. You always have to do an EEPROM erase before writing a new BIN file onto it.

What does the EEPROM erase consist of? What do you have to do before you write the saved bin file? Do you go to the EEPROM Programming button and press erase before you go to flash programming?

[Chief]

Mangoop, the receiver's EEPROM controls functions such as personal settings, channel locks, satellite switching information, etc - a critical part, indeed, but tiny in comparison to the data stored in the TSOP chip. (8K vs. 2-4 megs of data)
Think of your TSOP chip as the basic operating system for your receiver. It controls nearly everything - how the menus and guides appear, video decryption, and so forth.
If your receiver is unfortunate enough to receive an ECM, most of the time you can repair it by simply erasing a SECTOR of the TSOP chip's programming. Different receivers use different sectors, and you will choose the appropriate sector for your unit once inside JKeys' "Flash Programming" area. You erase the sector, place the receiver back in the stream, and the stream itself will rewrite the sector you just zapped.
A FULL ERASE is seldom necessary, but it is imperative that you have a clean backup of your entire TSOP chip (AND the EEPROM)stored away somewhere in the event that you need to do a full rewrite.
To do a total rewrite of the TSOP, first, you must do a full erase first, then write your saved TSOP file back to the chip. To rewrite the EEPROM, you can erase, or just overwrite the existing program.

Again, just because your receiver gets hit with an ECM does NOT mean you need to do a full rewrite - or touch the EEPROM programming at all. I've personally rewritten only two EEPROM chips in the past 8 months, and in both cases it was due to a faulty "check switch" sequence.

[Chapster99]

Actually, there is no option to erase the eeprom. Your only options are 'Save' or 'Program'. Now if you're simply doing a sector erase (quick fix), there's no need to mess with the eeprom. However, if you're doing a full reflash, then you need to create a virgin eeprom using FlashEdit.

[Chapster99]

Chief beat me to it....and got more into detail too! Thx Cheif!