R-JTAG Troubles with my Falcon

jappish · Feb 10, 2014

Hey guys,

I'm working on a falcon thats being a real pain. I have another thread here if you need pics of soldering. Starting a new thread since it's a different problem and to keep the thread easy to follow.

To sum it up

Had ROL problems, fixed them.
Flashed back original nand and played a while with it to test, no problems at all.
Flashed jtag nand again and I'm now stuck at POST 79 - Load XAM and one blinking red light.

Here's the rater log

Code:

Phat Selected
Version: 10
Power Up
Waiting for POST to change
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 38 - SIG_VERIFY_4BL_CD 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 19 - HMACSHA_COMPUTE 
Post 1A - RC4_INITIALIZE 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 22 - INIT_SECENG 
Post 2F - RELOCATE 
Post 2E - HWINIT 
Post 31 - FETCH_HEADER_4BL_CD 
Post 33 - FETCH_CONTENTS_4BL_CD 
Post 34 - HMACSHA_COMPUTE_4BL_CD 
Post 35 - RC4_INITIALIZE_4BL_CD 
Post 36 - RC4_DECRYPT_4BL_CD 
Post 37 - SHA_COMPUTE_4BL_CD 
Post 3A - BRANCH 
Post 40 - Entrypoint of CD reached 
Post 41 - VERIFY_OFFSET 
Post 44 - FETCH_CONTENTS 
Post 45 - HMACSHA_COMPUTE 
Post 46 - RC4_INITIALIZE 
Post 47 - RC4_DECRYPT 
Post 48 - SHA_COMPUTE 
Post 4B - LZX_EXPAND 
Post 4E - FETCH_OFFSET_6BL_CF 
Post 4F - VERIFY_OFFSET_6BL_CF 
Post 51 - LOAD_UPDATE_2 
Post 50 - LOAD_UPDATE_1 
Post 52 - BRANCH 
Post 58 - INIT_HYPERVISOR 
Post 5A - INIT_XEX_TRAINING 
Post 60 - INIT_KERNEL 
Post 61 - INIT_HAL_PHASE_0 
Post 63 - INIT_KERNEL_DEBUGGER 
Post 64 - INIT_MEMORY_MANAGER 
Post 65 - INIT_STACKS 
Post 66 - INIT_OBJECT_SYSTEM 
Post 67 - INIT_PHASE1_THREAD 
Post 68 - Started phase 1 Initialization + INIT_PROCESSORS 
Post 69 - INIT_KEY_VAULT 
Post 6A - INIT_HAL_PHASE_1 
Post 6B - INIT_SFC_DRIVER 
Post 6C - INIT_SECURITY 
Post 6D - INIT_KEY_EX_VAULT 
Post 70 - INIT_VIDEO_DRIVER 
Post 73 - INIT_SATA_DRIVER 
Post 79 - LOAD_XAM 
Shutdown
Phat Selected
Version: 10
Power Up
Waiting for POST to change
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 38 - SIG_VERIFY_4BL_CD 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 22 - INIT_SECENG 
Post 2F - RELOCATE 
Post 2E - HWINIT 
Post 33 - FETCH_CONTENTS_4BL_CD 
Post 34 - HMACSHA_COMPUTE_4BL_CD 
Post 35 - RC4_INITIALIZE_4BL_CD 
Post 36 - RC4_DECRYPT_4BL_CD 
Post 37 - SHA_COMPUTE_4BL_CD 
Post 3A - BRANCH 
Post 40 - Entrypoint of CD reached 
Post 42 - FETCH_HEADER 
Post 44 - FETCH_CONTENTS 
Post 45 - HMACSHA_COMPUTE 
Post 46 - RC4_INITIALIZE 
Post 47 - RC4_DECRYPT 
Post 48 - SHA_COMPUTE 
Post 4B - LZX_EXPAND 
Post 4E - FETCH_OFFSET_6BL_CF 
Post 4F - VERIFY_OFFSET_6BL_CF 
Post 51 - LOAD_UPDATE_2 
Post 50 - LOAD_UPDATE_1 
Post 52 - BRANCH 
Post 58 - INIT_HYPERVISOR 
Post 5A - INIT_XEX_TRAINING 
Post 61 - INIT_HAL_PHASE_0 
Post 62 - INIT_PROCESS_OBJECTS 
Post 63 - INIT_KERNEL_DEBUGGER 
Post 64 - INIT_MEMORY_MANAGER 
Post 65 - INIT_STACKS 
Post 66 - INIT_OBJECT_SYSTEM 
Post 67 - INIT_PHASE1_THREAD 
Post 68 - Started phase 1 Initialization + INIT_PROCESSORS 
Post 69 - INIT_KEY_VAULT 
Post 6A - INIT_HAL_PHASE_1 
Post 6B - INIT_SFC_DRIVER 
Post 6C - INIT_SECURITY 
Post 6D - INIT_KEY_EX_VAULT 
Post 6F - INIT_POWER_MODE 
Post 70 - INIT_VIDEO_DRIVER 
Post 71 - INIT_AUDIO_DRIVER 
Shutdown
Power Up
Waiting for POST to change
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 38 - SIG_VERIFY_4BL_CD 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 38 - SIG_VERIFY_4BL_CD 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 22 - INIT_SECENG 
Post 2F - RELOCATE 
Post 2E - HWINIT 
Post 31 - FETCH_HEADER_4BL_CD 
Post 33 - FETCH_CONTENTS_4BL_CD 
Post 34 - HMACSHA_COMPUTE_4BL_CD 
Post 35 - RC4_INITIALIZE_4BL_CD 
Post 36 - RC4_DECRYPT_4BL_CD 
Post 37 - SHA_COMPUTE_4BL_CD 
Post 3A - BRANCH 
Post 40 - Entrypoint of CD reached 
Post 42 - FETCH_HEADER 
Post 44 - FETCH_CONTENTS 
Post 45 - HMACSHA_COMPUTE 
Post 46 - RC4_INITIALIZE 
Post 47 - RC4_DECRYPT 
Post 48 - SHA_COMPUTE 
Post 4B - LZX_EXPAND 
Post 4E - FETCH_OFFSET_6BL_CF 
Post 4F - VERIFY_OFFSET_6BL_CF 
Post 51 - LOAD_UPDATE_2 
Post 50 - LOAD_UPDATE_1 
Post 52 - BRANCH 
Post 58 - INIT_HYPERVISOR 
Post 5A - INIT_XEX_TRAINING 
Post 61 - INIT_HAL_PHASE_0 
Post 62 - INIT_PROCESS_OBJECTS 
Post 64 - INIT_MEMORY_MANAGER 
Post 65 - INIT_STACKS 
Post 66 - INIT_OBJECT_SYSTEM 
Post 67 - INIT_PHASE1_THREAD 
Post 68 - Started phase 1 Initialization + INIT_PROCESSORS 
Post 69 - INIT_KEY_VAULT 
Post 6A - INIT_HAL_PHASE_1 
Post 6B - INIT_SFC_DRIVER 
Post 6C - INIT_SECURITY 
Post 6D - INIT_KEY_EX_VAULT 
Post 6F - INIT_POWER_MODE 
Post 73 - INIT_SATA_DRIVER 
Post 79 - LOAD_XAM 
Shutdown
Phat Selected
Version: 10
Power Up
Waiting for POST to change
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 29 - HMACSHA_COMPUTE_3BL_CC 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 39 - SHA_VERIFY_4BL_CD 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 87 - Panic - ALIGNMENT 
Post 06 
Post 06 
Post 12 - FSB_CONFIG_RX_STATE 
Post FE 
Post FE 
Post 10 - Payload/1BL started 
Post 11 - FSB_CONFIG_PHY_CONTROL 
Post 12 - FSB_CONFIG_RX_STATE 
Post 13 - FSB_CONFIG_TX_STATE 
Post 14 - FSB_CONFIG_TX_CREDITS 
Post 15 - FETCH_OFFSET 
Post 18 - FETCH_CONTENTS 
Post 19 - HMACSHA_COMPUTE 
Post 1A - RC4_INITIALIZE 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 22 - INIT_SECENG 
Post FE 
Post FE 
Post FE 
Post 10 - Payload/1BL started 
Post 11 - FSB_CONFIG_PHY_CONTROL 
Post 12 - FSB_CONFIG_RX_STATE 
Post 13 - FSB_CONFIG_TX_STATE 
Post 14 - FSB_CONFIG_TX_CREDITS 
Post 15 - FETCH_OFFSET 
Post 16 - FETCH_HEADER 
Post 17 - VERIFY_HEADER 
Post 18 - FETCH_CONTENTS 
Post 19 - HMACSHA_COMPUTE 
Post 1A - RC4_INITIALIZE 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 22 - INIT_SECENG 
Post 06 
Post 06 
Post FE 
Post E0 
Post 10 - Payload/1BL started 
Post 11 - FSB_CONFIG_PHY_CONTROL 
Post 12 - FSB_CONFIG_RX_STATE 
Post 13 - FSB_CONFIG_TX_STATE 
Post 14 - FSB_CONFIG_TX_CREDITS 
Post 15 - FETCH_OFFSET 
Post 16 - FETCH_HEADER 
Post 17 - VERIFY_HEADER 
Post 18 - FETCH_CONTENTS 
Post 19 - HMACSHA_COMPUTE 
Post 1A - RC4_INITIALIZE 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 22 - INIT_SECENG 
Post 2F - RELOCATE 
Post 2E - HWINIT 
Post 33 - FETCH_CONTENTS_4BL_CD 
Post 34 - HMACSHA_COMPUTE_4BL_CD 
Post 35 - RC4_INITIALIZE_4BL_CD 
Post 36 - RC4_DECRYPT_4BL_CD 
Post 37 - SHA_COMPUTE_4BL_CD 
Post 3A - BRANCH 
Post 40 - Entrypoint of CD reached 
Post 42 - FETCH_HEADER 
Post 44 - FETCH_CONTENTS 
Post 45 - HMACSHA_COMPUTE 
Post 46 - RC4_INITIALIZE 
Post 47 - RC4_DECRYPT 
Post 48 - SHA_COMPUTE 
Post 4B - LZX_EXPAND 
Post 4E - FETCH_OFFSET_6BL_CF 
Post 4F - VERIFY_OFFSET_6BL_CF 
Post 51 - LOAD_UPDATE_2 
Post 50 - LOAD_UPDATE_1 
Post 52 - BRANCH 
Post 58 - INIT_HYPERVISOR 
Post 5A - INIT_XEX_TRAINING 
Post 61 - INIT_HAL_PHASE_0 
Post 62 - INIT_PROCESS_OBJECTS 
Post 63 - INIT_KERNEL_DEBUGGER 
Post 64 - INIT_MEMORY_MANAGER 
Post 65 - INIT_STACKS 
Post 66 - INIT_OBJECT_SYSTEM 
Post 67 - INIT_PHASE1_THREAD 
Post 68 - Started phase 1 Initialization + INIT_PROCESSORS 
Post 69 - INIT_KEY_VAULT 
Post 6A - INIT_HAL_PHASE_1 
Post 6B - INIT_SFC_DRIVER 
Post 6C - INIT_SECURITY 
Post 6D - INIT_KEY_EX_VAULT 
Post 6E - INIT_SETTINGS 
Post 70 - INIT_VIDEO_DRIVER 
Post 73 - INIT_SATA_DRIVER 
Post 79 - LOAD_XAM 
Most Fails(cumulative): 0x22
Shutdown
Phat Selected
Version: 10
Power Up
Waiting for POST to change
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 38 - SIG_VERIFY_4BL_CD 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3A - BRANCH 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 39 - SHA_VERIFY_4BL_CD 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 28 - FETCH_CONTENTS_3BL_CC 
Post 3B - PCI_INIT 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 22 - INIT_SECENG 
Post FE 
Post FE 
Post FC 
Post FE 
Post 06 
Post FE 
Post 10 - Payload/1BL started 
Post 11 - FSB_CONFIG_PHY_CONTROL 
Post 12 - FSB_CONFIG_RX_STATE 
Post 13 - FSB_CONFIG_TX_STATE 
Post 15 - FETCH_OFFSET 
Post 16 - FETCH_HEADER 
Post 17 - VERIFY_HEADER 
Post 18 - FETCH_CONTENTS 
Post 19 - HMACSHA_COMPUTE 
Post 1A - RC4_INITIALIZE 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 22 - INIT_SECENG 
Post FE 
Post 06 
Post FE 
Post FE 
Post FE 
Post 10 - Payload/1BL started 
Post 11 - FSB_CONFIG_PHY_CONTROL 
Post 12 - FSB_CONFIG_RX_STATE 
Post 13 - FSB_CONFIG_TX_STATE 
Post 14 - FSB_CONFIG_TX_CREDITS 
Post 15 - FETCH_OFFSET 
Post 16 - FETCH_HEADER 
Post 17 - VERIFY_HEADER 
Post 18 - FETCH_CONTENTS 
Post 19 - HMACSHA_COMPUTE 
Post 1A - RC4_INITIALIZE 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post 22 - INIT_SECENG 
Post 2F - RELOCATE 
Post 2E - HWINIT 
Post 33 - FETCH_CONTENTS_4BL_CD 
Post 34 - HMACSHA_COMPUTE_4BL_CD 
Post 35 - RC4_INITIALIZE_4BL_CD 
Post 36 - RC4_DECRYPT_4BL_CD 
Post 37 - SHA_COMPUTE_4BL_CD 
Post 3A - BRANCH 
Post 40 - Entrypoint of CD reached 
Post 42 - FETCH_HEADER 
Post 44 - FETCH_CONTENTS 
Post 45 - HMACSHA_COMPUTE 
Post 46 - RC4_INITIALIZE 
Post 47 - RC4_DECRYPT 
Post 48 - SHA_COMPUTE 
Post 4B - LZX_EXPAND 
Post 4E - FETCH_OFFSET_6BL_CF 
Post 4F - VERIFY_OFFSET_6BL_CF 
Post 51 - LOAD_UPDATE_2 
Post 50 - LOAD_UPDATE_1 
Post 52 - BRANCH 
Post 58 - INIT_HYPERVISOR 
Post 5A - INIT_XEX_TRAINING 
Post 60 - INIT_KERNEL 
Post 61 - INIT_HAL_PHASE_0 
Post 62 - INIT_PROCESS_OBJECTS 
Post 64 - INIT_MEMORY_MANAGER 
Post 65 - INIT_STACKS 
Post 66 - INIT_OBJECT_SYSTEM 
Post 67 - INIT_PHASE1_THREAD 
Post 68 - Started phase 1 Initialization + INIT_PROCESSORS 
Post 69 - INIT_KEY_VAULT 
Post 6A - INIT_HAL_PHASE_1 
Post 6B - INIT_SFC_DRIVER 
Post 6C - INIT_SECURITY 
Post 6D - INIT_KEY_EX_VAULT 
Post 6E - INIT_SETTINGS 
Post 70 - INIT_VIDEO_DRIVER 
Post 73 - INIT_SATA_DRIVER 
Post 79 - LOAD_XAM 
Shutdown
Power Up
Waiting for POST to change
TIMEOUT or SMC CORRUPTED - Shutting Down
Shutdown
Power Up
Waiting for POST to change
TIMEOUT or SMC CORRUPTED - Shutting Down
Shutdown

Thanks

hersheys247 · Feb 10, 2014

Did you try all settings combination and different voltage. This is common hence the need to fine tune.

jappish · Feb 10, 2014

No I didn't, I thought that the fine tuning settings were just for the glitch timing, isn't it? Because my glitch-time is pretty constant, around 2-3 glitches. I can also mention that rater interprets the xbox as successfully glitched as it begins shutdown countdown when it reaches post 79

gavin_darkglide · Feb 10, 2014

Try changing smc powemode/power vcs settings.

jappish · Feb 11, 2014

Thanks

gavin_darkglide,

to change the smc power setting, do I load the original nand dump in jrunner --> go to tools --> msc config editor --> edit to say 8080 --> save --> load the _edited nanddump --> build xebuild image --> flash to xbox. Correct?

I think my JR Programmer is giving up on me too, or it's my pc? I often have trouble to read or write to nand, but sometimes it works... will try again tomorrow.

Martin C · Feb 11, 2014

OP - disregard all other replies. This is what happens when people chime in who don't have a clue what they're talking about.

"Flashed jtag nand again and I'm now stuck at POST 79 - Load XAM and one blinking red light."

This is E79. In short, your DIP / Voltage setting on the R-JTAG is fine. The issue is with the JTAG portion of the installation. Make sure you ticked AUD_CLAMP during the xell creation if you're using AUD_CLAMP wiring. To recap - leave your R-JTAG as is. Do NOT mess with SMC Config has it's NOT the problem.

gavin_darkglide · Feb 11, 2014

I have never had one get that far on the rater if the jtag wiring was messed up, and considering they never gave a secondary error code, or anything...... I have seen consoles freeze because of bad powermode settings on rgh, before the boot animation though. I didnt see the rrod part though.

jappish · Feb 11, 2014

Martin C said:
OP - disregard all other replies. This is what happens when people chime in who don't have a clue what they're talking about.

"Flashed jtag nand again and I'm now stuck at POST 79 - Load XAM and one blinking red light."

This is E79. In short, your DIP / Voltage setting on the R-JTAG is fine. The issue is with the JTAG portion of the installation. Make sure you ticked AUD_CLAMP during the xell creation if you're using AUD_CLAMP wiring. To recap - leave your R-JTAG as is. Do NOT mess with SMC Config has it's NOT the problem.

Thanks Martin C,

I can't see any bad soldering, so I thought I'd use your "Troubleshooting NAND-x errors" guide, but I can't seem to find my multimeter, will buy a new one and report back the numbers.

Thanks.

Martin C · Feb 11, 2014

It's nothing to do with NAND-x - it'll be your JTAG stuff. Get a Multimeter and check the TMS/TDI points (J2D2.1 & J2D2.2) on the board against GND. They should be 1.5k each.

Also check the diodes on the QSB aren't the issue.

jappish · Feb 11, 2014

Thanks Martin C, will check that as soon as I get my hand on a multimeter.

Do you mean the diodes on the JTAG alt v2 QSB?

AllyNerd · Feb 11, 2014

Yes... Did your values measure to 1.5k as Martin asked?

Oh I see you don't have a multimeter yet... Definitely a must have when troubleshooting

jappish · Feb 11, 2014

I had a nice multimeter =) but I think someone borrowed it and I can't remember who, I asked the most likely friends, but they say they didn't

So I'll just have to buy a new one I guess

I'll report back as soon as can

jappish · Feb 15, 2014

Ok, so I finally got a dmm, the j2d2 1 and 2 read 1.55k each

The diode closest to the solder jumper on the qsb shows a value of 1344 / 419

The other one shows 1290 / 408

jappish · Feb 17, 2014

Is there anything else I can try? Thanks

Martin C · Feb 17, 2014

Set the QSB switches to ON / 0

You should have continuity between the coloured points as in the pic. You should NOT have continuity between different coloured points.

jappish · Feb 17, 2014

Ok, so I checked and nothing seems right

I have nothing on the diodes, but I have continuity on all points on the right side of the qsb (even different colors) blue is the only one that has continuity (except that it also has it with different colors)

I also checked continuity from topside of MB to solderpoint on QSB, all four points have continuity. Should I try to resoldering anyway?

Martin C · Feb 18, 2014

I wrote a sticky on best things to check:

(R-)JTAG Troubleshooting once past POST 0x2E

jappish · Feb 18, 2014

Thanks for the guide Martin C,

I noticed that you wrote that the QSB switch should be ON in the guide, but OFF in the post above. When I reported the values in my last post I had the switch in OFF position.

I now tried it with the switch in ON position and this is what I get:

orange to orange 0 ohm resistance
green to green 0 ohm resistance
blue to blue 0 Ohm resistance

right side points
orange to blue (both blue points) 1.49k Ohm resistance
green to blue (both blue points) 1.49k Ohm resistance

-------------------------------------------------------

orange right side point to green diode 2.98k Ohm
green right side point to orange diode 2.98k Ohm

Jumper setting on 330 Ohm shows 271 Ohm
Jumper setting on 470 Ohm shows 361 Ohm

-----------------------------------------------------------

Diodes

I have the dmm in diode mode

with the switch in ON position I get 1206 / 346 on the diode closest to aud_clamp point
with the switch in ON position I get 1310 / 337 on the diode closest to the on/off switch

with the switch in OFF position I get OL / 346 on the diode closest to aud_clamp point
with the switch in OFF position I get OL / 346 on the diode closest to the on/off switch

Martin C · Feb 18, 2014

Apologies - it should be set to ON (so the points are active).

You only need to check the values as mentioned in the sticky. If all of these are good and match what's expected (and you're certain your JTAG wiring matches SMC type in J-Runner), you might be looking at a GPU reflow/reball/replace.

EDIT: I might need to expand on the sticky to indicate the expected values of the diodes on the QSB, just to make sure. You can eliminate these by getting 2 1N4148 diodes and soldering them in place, setting the main on/off switch to off.

jappish · Feb 18, 2014

Martin C said:
(and you're certain your JTAG wiring matches SMC type in J-Runner),

Does this refer to if I ticked aud_clamp and rjtag when building the image? If yes, then yes I did, I checked the log.

Martin C said:
You only need to check the values as mentioned in the sticky. If all of these are good and match what's expected (and you're certain your JTAG wiring matches SMC type in J-Runner), you might be looking at a GPU reflow/reball/replace.

the sticky mentions that there should be no continuity between different colors, should I interpret my measured resistance between colors as ok then, or do the values above show that something is wrong?

Could I try a different jtag method perhaps?

And as I mentioned previously, I'm having a hard time flashing and reading the nand, the jrp often gives me flash config 0x00000 errors, this must be due to some bad wiring, doesn't it? Or is the programmer just giving up on me?

I will buy a new set of diodes and try that as well. Out of curiosity, why should the switch be in off position while soldering the new diodes?

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R-JTAG Troubles with my Falcon

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