BD-C7500 Downgrade Hack

[bucko67]

Will there ever be a firmware downgrade for the samsung BD-C7500 blu rey player
I'm currently on firmware BSP-C7500WWB-1025.1.

[bucko67]

whether it's on this forum used to be a firmware for BD-C series player

[bucko67]

if any of you have this player. the capabilities of this player. if the server has the firmware to downgrade this model. can be set. me an answer that does not play with this.

[bucko67]

Did anyone downgrade BD-C7500.
Firmware BSP-C7500WWB 1025.1
I got it that way.Someone responded I got it that way.
we no longer hope.
greeting.

[bucko67]

have someone give me a reply or not downgrade the firmware for this player

[bucko67]

USBtoTTL-over total controller adapter

BD-C7500.txt

there is Console code for this player

[bucko67]

I work at the site with the wiki. tell what I did.
http://wiki.samygo.tv/index.php?title=H ... _series_TV

[bucko67]

I succeed to the point where ask me to mount mtd file system. When show promt # i can not typing nothing on keyboard . What next?

[bucko67]

Automatic startup canceled via Ctrl-C

Code: Select all

CFE> c                                                                          
Invalid command: "c"                                                            
Available commands: info, splashsd, splash, loop, dir, macprog, macprog2, envwrp

Code: Select all

*** command status = -1                                                         
CFE> boot -elf -z flash0.kernel: 'root=/dev/romblock2 console=0,115200n8 BDVD_B'
Loader:elf Filesys:raw Dev:flash0.kernel File: Options:root=/dev/romblock2 conso
Loading: 0x80008000/4645696 0x80476340/304464                                   
Successfully loaded secure elf image....                                        
Entry address is 0x8000c330                                                     
                                                                                
current time (16546328 uS), 16546 ms                                            
                                                                                
Timestamp started ...                                                           
Starting program at 0x8000c330                                                  
                                                                                
[    0.000000] -- DDR Bank 0: 128 MB                                            
[    0.000000] -- DDR Bank 1: 256 MB                                            
[    0.000000] Linux version 2.6.28.9 (root@BdManager) (gcc version 4.2.0 200701
[    0.000000] Kernel command line: root=/dev/romblock2 console=0,115200n8 BDVDo
[4294667.387000] checker_0 control 0x00000008 addr low 0x00001000 hi 0x00345000 
[4294667.394000] read rights _0 0xffffffff _1 0xffffffff write rights _0 0x0000 
[4294667.403000] checker_1 control 0x00000008 addr low 0x00346000 hi 0x021fff80 
[4294667.410000] read rights _0 0xffffffff _1 0xffffffff write rights _0 0x0000 
[4294667.419000] checker_2 control 0x00000008 addr low 0x20000000 hi 0x241fff80 
[4294667.426000] read rights _0 0xffffffff _1 0xffffffff write rights _0 0x0000 
[4294667.435000] checker_3 control 0x00000018 addr low 0x2fd00000 hi 0x2fdfff80 
[4294667.442000] read rights _0 0xffffffff _1 0xffffffff write rights _0 0x0000 
[4294667.463000] Driver 'sd' needs updating - please use bus_type methods       
[4294667.470000] Driver 'sr' needs updating - please use bus_type methods       
[4294667.477000] vide_ofe_probe: FE SECURITY NOT ENABLED                        
[4294667.490000] scsi 0:0:0:0: CD-ROM            SAMSUNG  SPE-450          00585
[4294667.499000] sr 0:0:0:0: Attached scsi generic sg0 type 5                   
[4294667.547000] brcmnand_probe: Found MLC device Samsung MLC K9G8G08U0A/B      
[4294667.553000] brcmnand_probe() pageSize : 2048, blockSize: 262144<6>Updating0
[4294667.565000]  allocating this->pLocalOob<3> allocating this->ecc mask<6>Brc0
[4294667.598000] Creating 22 MTD partitions on "bcm7xxx-nand":  
[4294667.604000] 0x00000000-0x00100000 : "cfe"                                  
[4294667.609000] 0x00100000-0x00600000 : "kernel"                               
[4294667.614000] 0x00600000-0x04600000 : "rootfs"                               
[4294667.619000] 0x04600000-0x04800000 : "ofefw0"                               
[4294667.624000] 0x04800000-0x04a00000 : "splash"                               
[4294667.630000] 0x04a00000-0x04c00000 : "splashS"                              
[4294667.635000] 0x04c00000-0x04e00000 : "splashU"                              
[4294667.640000] 0x04e00000-0x05000000 : "bootsound"                            
[4294667.645000] 0x05000000-0x05080000 : "macadr"                               
[4294667.650000] 0x05080000-0x05100000 : "nvram"                                
[4294667.655000] 0x05100000-0x05180000 : "rawnvr"                               
[4294667.661000] 0x05180000-0x05200000 : "drmregion"                            
[4294667.666000] 0x05200000-0x05280000 : "drmregion1"                           
[4294667.671000] 0x05280000-0x05300000 : "ofews"                                
[4294667.676000] 0x05300000-0x05380000 : "ofews1"                               
[4294667.682000] 0x05380000-0x06280000 : "tmp"                                  
[4294667.687000] 0x06280000-0x06780000 : "kernel1"                              
[4294667.692000] 0x06780000-0x0a780000 : "rootfs1"                              
[4294667.697000] 0x0a780000-0x0a980000 : "ofefw1"                               
[4294667.703000] 0x0a980000-0x13f80000 : "widget"                               
[4294667.708000] 0x13f80000-0x3ff00000 : "pstor"                                
[4294667.715000] 0x00000000-0x40000000 : "all"                                  
#

I've done up to this point. ?To further typed on the keyboard nothing happens.

[juusso]

Interesting research...