NintendoAge http://nintendoage.com/forum/ -Sqooner (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2019-01-03T10:14:52 -05.00 PutrefactiveHam 18
This was the presentation where they discussed reverse engineering the CICs. Even though they released the CIC code for each clone CIC their analysis actually led to a method to make a universal CIC, which they kept to themselves. MarshallH's own 64Drive uses this but the code is built-in to the FPGA used for the rest of the functions and can't be used elsewhere. ]]> (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2019-01-03T04:15:04 -05.00 PutrefactiveHam 18 (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2019-01-01T17:30:42 -05.00 PutrefactiveHam 18 (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2019-01-01T16:28:45 -05.00 PutrefactiveHam 18 Originally posted by: Ichinisan

Strange. Almost like the Gameshark is setting something with the N64's PIF chip that makes it seize until it sees the specific boot COC it expects.

I used this list back in the day with my Doctor V64 to figure out which cartridges I could use to boot a particular game loaded into the unit's DRAM:
http://n64.icequake.net/mirror/ww...

Maybe you can assemble a set of carts for each CIC and go through each one to see if a particular CIC knocks it out of the locked-up state.

For USA region...

6102
Most common. Used by early 1st/2nd party games and nearly all third party games.

6101
Star Fox 64

6103 
1080° Snowboarding
Banjo-Kazooie
Diddy Kong Racing
Excitebike 64
Ken Griffey Jr's Slugfest
Kirby 64 The Crystal Shards
Kobe Bryant in NBA Courtside
Major League Baseball featuring Ken Griffey Jr
Pokémon Snap
Pokémon Stadium
Super Smash Bros

6105
Banjo-Tooie
Donkey Kong 64
Jet Force Gemini
Zelda Ocarina of Time
Zelda Majora's Mask
Mickey's Speedway USA
Perfect Dark

6106
Yoshi's Story
Cruisn' World
F-Zero X
This is my vote. You will definitely get a stuck black screen if you boot the Gameshark using a key that you don't have a matching cart for. That's why there's a warning whenever you go to change it. 
  ]]> (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2018-12-31T14:34:42 -05.00 PutrefactiveHam 18 Originally posted by: CZroe
 
Originally posted by: quest4nes

3.3 is finicky. To get it to work sometimes you have to use specific games to "reboot" the thing. You triggered this most likely. Once you retried it and reset it, it went back to normal.


 Common issue. You have to use different games to reboot it to load around thatn64 chip. Diddy kong racing was another common game to get it working again

http://atariage.com/forums/topic/132541-some-help-with-my-ne...


That wouldn’t have any bearing on his ability to boot without it though.

Its probably just coincidence. Probably had a blemish in the pin area after gameshark was in there. Rebooting gameshark probably cleared the blemish on the pins.  ]]> (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2018-12-31T12:48:45 -05.00 PutrefactiveHam 18 Originally posted by: CZroe
 
Originally posted by: quest4nes

3.3 is finicky. To get it to work sometimes you have to use specific games to "reboot" the thing. You triggered this most likely. Once you retried it and reset it, it went back to normal.


 Common issue. You have to use different games to reboot it to load around thatn64 chip. Diddy kong racing was another common game to get it working again

http://atariage.com/forums/topic/132541-some-help-with-my-ne...


That wouldn’t have any bearing on his ability to boot without it though.
Also, it's by design (intentional) that you can't boot without the correct CIC. If I recall correctly, after changing the GameShark boot key to a particular CIC, you need to have one of those games around or you will not be able to boot the GameShark again to change modes. ]]> (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2018-12-31T12:00:28 -05.00 PutrefactiveHam 18 Originally posted by: quest4nes

3.3 is finicky. To get it to work sometimes you have to use specific games to "reboot" the thing. You triggered this most likely. Once you retried it and reset it, it went back to normal.


 Common issue. You have to use different games to reboot it to load around thatn64 chip. Diddy kong racing was another common game to get it working again

http://atariage.com/forums/topic/132541-some-help-with-my-ne...

That wouldn’t have any bearing on his ability to boot without it though. ]]> (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2018-12-31T04:06:17 -05.00 PutrefactiveHam 18

 Common issue. You have to use different games to reboot it to load around thatn64 chip. Diddy kong racing was another common game to get it working again

http://atariage.com/forums/topic/132541-some-help-with-my-new-gameshark-pro-33-for-n64/ ]]> (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2018-12-28T14:26:39 -05.00 PutrefactiveHam 18 (N64) GameShark Pro: Concerning Issue? http://nintendoage.com/forum/messageview.cfm?catid=31&threadid=184451 2018-12-28T00:21:33 -05.00 PutrefactiveHam 18
I used this list back in the day with my Doctor V64 to figure out which cartridges I could use to boot a particular game loaded into the unit's DRAM:
http://n64.icequake.net/mirror/www.elitendo.com/n64/usa_boot_save_list.html

Maybe you can assemble a set of carts for each CIC and go through each one to see if a particular CIC knocks it out of the locked-up state.

For USA region...

6102
Most common. Used by early 1st/2nd party games and nearly all third party games.

6101
Star Fox 64

6103 
1080° Snowboarding
Banjo-Kazooie
Diddy Kong Racing
Excitebike 64
Ken Griffey Jr's Slugfest
Kirby 64 The Crystal Shards
Kobe Bryant in NBA Courtside
Major League Baseball featuring Ken Griffey Jr
Pokémon Snap
Pokémon Stadium
Super Smash Bros

6105
Banjo-Tooie
Donkey Kong 64
Jet Force Gemini
Zelda Ocarina of Time
Zelda Majora's Mask
Mickey's Speedway USA
Perfect Dark

6106
Yoshi's Story
Cruisn' World
F-Zero X ]]>