hard erase sb6120

[Jester]

i brought a previously bricked sb6120 from ebay with the intention of using usbjtagnt to revive it. ive got my device activated it (thanks for quick reply usbbdm) taken a clean backup from my working sb6120 and flashed i get an error. maybe the dump is bad redump compare with hex editor dumps match. i tried some 8meg bins i obtained from the interwebs and i still get this compare error after flash.

my procedure is as follows: clip testclip to chip open usbjtagnt select sb6120 spi target. power on modem wait untill lights show plug free end of cable into usbjtag. hold power to ISP pin r362. lights go out detect load erase sprogram cmpram error every time. is this the correct way to wire it up?

please see my attached log:

Code: Select all

Copyright (C) 2010,2011,2012
USB JTAG NT    0.63
Target: SB6120
-flshdct 0
Found Address= 00000000 25FL064A
-ldram 0
E:/Modem/00000000.bin loaded
-erase 0 800000
Erase starts...
Erase time 00:00:33 (.001)
-sprogram 0 80000
Program Starts...
Program speed 276.67 KB/s
Program time 00:00:01 (.896)
Program pass, if no further programming needed, power off/on the target
-cpram 0 800000
Bad command
-cmpram 0 800000
Compare data Failed address 80000,target FF,PC memory 56
Time 00:00:08 (.973)
-flshdct 0
Found Address= 00000000 25FL064A
-ldram 0
E:/Modem/00000000.bin loaded
-erase 0 800000
Erase starts...
Erase time 00:00:34 (.097)
-sprogram 0 80000
Program Starts...
Program speed 275.94 KB/s
Program time 00:00:01 (.901)
Program pass, if no further programming needed, power off/on the target
-cmpram 0 800000
Compare data Failed address 80000,target FF,PC memory 56
Time 00:00:08 (.968)
-flshdct 0
Found Address= 00000000 25FL064A
-ldram 0
C:/Users/Jester/Desktop/00000000.bin loaded
-erase 0 800000
Erase starts...
Erase time 00:00:34 (.304)
-speed 2
-erase 0 800000
Erase starts...
Erase time 00:00:34 (.420)
-sprogram 0 80000
Program Starts...
Program speed 170.61 KB/s
Program time 00:00:03 (.074)
Program pass, if no further programming needed, power off/on the target
-cmpram 0 800000
Compare data Failed address 80000,target FF,PC memory 56
Time 00:00:35 (.255)
-flshdct 0
Found Address= 00000000 25FL064A
-speed 1
-speed 0
-speed 1
-speed 2
-ldram 0
C:/Users/Jester/Desktop/00000000.bin loaded
-erase 0 800000
Erase starts...
Erase time 00:00:34 (.145)
-sprogram 0 80000
Program Starts...
Program speed 170.39 KB/s
Program time 00:00:03 (.078)
Program pass, if no further programming needed, power off/on the target
-cmpram 0 800000
Compare data Failed address 80000,target FF,PC memory 56
Time 00:00:35 (.238)

is there someway to hard? erase the spi chip? i had this working once but my finger slipped from the ISP pin during an erase while trying to program a 3rd party f/w. now im stuck in this loop any help would be appreciated. thanks in advance.

[nando29]

the is in the ISP connector. Connect the USBJTAG NT to the modem, power on the modem and finally connect the ISP connector and thats it.

[Jester]

i fixed it. i was following a docx tutorial that came with the f/w using the provided hex addresses ALWAYS failed. how ever using the drop down menu and selecting UBFI1 / UBFI2 after flashing a full 8meg bin provided the expected out come.