Did you try zerorize and flash again?
Sometimes I feel Nokia might have pulled some type of kill switch to kill N9s.
So many people faced this issue and we still don't know reason. Why and how it happens suddenly?
I tried checking SIM tray mechanism by opening N9 but that also didnt help. I have given up

Hi Suyog,

here is the log for the last flash attempt. Everything seems to be alright. The cmt module flashed correctly too. As far as I've gathered, it isn't a hardware problem.

C:\Program Files\Nokia\Flasher>flasher.exe -f -F main.bin -F emmc.bin --erase-us
er-data=secure -R
flasher 3.12.1 (Oct 6 2011) Harmattan
WARNING: This tool is intended for professional use only. Using it may result
in permanently damaging your device or losing the warranty.

Suitable USB interface (bootloader/phonet) not found, waiting...
Found device RM-696, hardware revision 1601
NOLO version 2.3.6
Version of 'sw-release': DFL61_HARMATTAN_40.2012.21-3_PR_006
Sending ape-algo image (7096 kB)...
100% (7096 of 7096 kB, avg. 23734 kB/s)
Suitable USB interface (phonet) not found, waiting...
Ping attempt 1 (250 ms)
Server application: 1.7.2
Found product RM-696 rev. 1601
Server implements softupd protocol version 1.8

Battery level 82 %, continuing.
Erasing, this may take a while.
Erase done.
Image SW version DFL61_HARMATTAN_40.2012.21-3_PR_006
Image moslo not present
Image tar skipped
Image config skipped

Battery level 82 %, continuing.

image [state progress transfer flash speed]
---------------------------------------------------------------------
[x] cert-sw [finished 100 % 1 / 1 kB NA ]
[x] cmt-2nd [finished 100 % 95 / 95 kB NA ]
[x] cmt-algo [finished 100 % 789 / 789 kB NA ]
[x] cmt-mcusw [finished 100 % 6050 / 6050 kB 2906 kB/s]
[x] xloader [finished 100 % 23 / 23 kB NA ]
[x] secondary [finished 100 % 94 / 94 kB NA ]
[x] kernel [finished 100 % 2714 / 2714 kB 1811 kB/s]
[x] rootfs [finished 100 % 978983 / 978983 kB 10479 kB/s]
[x] mmc [finished 100 % 1829147 / 1829147 kB 13691 kB/s]
Updating SW release
Success

Did you try different SIM?
Also try to put thin paper below SIM in SIM tray and check.

At first when the phone went kaput I thought the SIM card tray went bust! I ordered for a new one but that ofcourse wasn;t the problem. I also tried the thin paper method. I've tried other SIMs too, no luck. Only that the SIMs that I've tried were cut to Micro-SIM size and not the ones that came from the carrier.
I'm trying wifey's SIM card now, her's is a carrier provided one. Lets see.

I'll try the thin paper method once again. Wifey's SIM behaves exactly the same as mine. The network appears for a brief period and then vanishes into thin air making me miserable as hell!

Ohh, hard luck then ! Exactly same thing I have here.
Network appears for few seconds and then goes off.
Can you see IMEI number after networks goes away?

That's the funny bit in my case. I can see the IMEI number when the network goes away but again only for a brief period. After that it goes off again! On and off. I think I may have mixed up flashing different versions (most likely India version). Today I will try flashing the cmt only for the India version and then do a full flash with the German version or any version higher than the India one. Fingers crossed!

After trying every tutorial and forum thread I can find, I will admit that I now need to ask for help.

N9: Singapore Black 16 GB (059J246)

I received it new when the phone was first released. We used it for a day loaded up some software, then tried to wipe it to bring it back to factory clean after we ran into a problem. It never came back up. That was a while ago and I don't remember the details. I had other new phones at the time and was traveling, so we didn't get the phone fixed. The phone now gets caught in a loop of Nokia screen / reboot.

Since then I've tried various things from this discussion board and elsewhere. Here's where we are now:

When I try to flash the device using the Navifirm downloaded images for the variant on Flasher 3.12.1 on both Mac, PC and Linux, here's the output:

flasher 3.12.1 (Oct 5 2011) Harmattan
WARNING: This tool is intended for professional use only. Using it may result
in permanently damaging your device or losing the warranty.

USB device found at bus 253, device address 4.
Device serial number is N/A
Found device RM-696, hardware revision 1507
NOLO version 2.1.5
Version of 'sw-release': DFL61_HARMATTAN_20.2011.40-4_PR_005
Sending ape-algo image (7032 kB)...
100% (7032 of 7032 kB, avg. 27906 kB/s)
Suitable USB interface (phonet) not found, waiting...
USB device found at bus 253, device address 4.
Device serial number is
Raw data transfer EP found at EP2.
Ping attempt 1 (250 ms)
Server application: 1.6.3
Found product RM-696 rev. 1507
Server implements softupd protocol version 1.8
Image SW version DFL61_HARMATTAN_20.2011.40-4_PR_005
Image moslo not present
Image mmc not present
Image tar skipped
Image config skipped
Charging battery, 10 % battery level (11 % required). Ctrl-c to exit
Battery level 11 %, continuing.

image [state progress transfer flash speed]
---------------------------------------------------------------------
[x] cert-sw [finished 100 % 1 / 1 kB NA ]
[x] cmt-2nd [finished 100 % 95 / 95 kB NA ]
[x] cmt-algo [finished 100 % 789 / 789 kB NA ]
[_] cmt-mcusw [finishing 0 % 6050 / 6050 kB 3005 kB/s]
[x] xloader [finished 100 % 23 / 23 kB NA ]
[x] secondary [finished 100 % 93 / 93 kB NA ]
[x] kernel [finished 100 % 2712 / 2712 kB 1967 kB/s]
[_] rootfs [finishing 100 % 32768 / 1102546 kB NA ]
ERROR: SU_GET_UPDATE_STATUS_REQ terminated with error code 1: Unknown error

image [state progress transfer flash speed]
---------------------------------------------------------------------
[x] cert-sw [finished 100 % 1 / 1 kB NA ]
[x] cmt-2nd [finished 100 % 95 / 95 kB NA ]
[x] cmt-algo [finished 100 % 789 / 789 kB NA ]
[_] cmt-mcusw [finishing 0 % 6050 / 6050 kB 3005 kB/s]
[x] xloader [finished 100 % 23 / 23 kB NA ]
[x] secondary [finished 100 % 93 / 93 kB NA ]
[x] kernel [finished 100 % 2712 / 2712 kB 1967 kB/s]
[f] rootfs [finishing 0 % 32768 / 1102546 kB NA ]
ERROR: SU_GET_UPDATE_STATUS_REQ terminated with error code 1: Unknown error

image [state progress transfer flash speed]
---------------------------------------------------------------------
[x] cert-sw [finished 100 % 1 / 1 kB NA ]
[x] cmt-2nd [finished 100 % 95 / 95 kB NA ]
[x] cmt-algo [finished 100 % 789 / 789 kB NA ]
[f] cmt-mcusw [finishing 0 % 6050 / 6050 kB 3005 kB/s]
[x] xloader [finished 100 % 23 / 23 kB NA ]
[x] secondary [finished 100 % 93 / 93 kB NA ]
[x] kernel [finished 100 % 2712 / 2712 kB 1967 kB/s]
[f] rootfs [finishing 0 % 32768 / 1102546 kB NA ]
Fetching error list:
========================================
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
mmc: sfdisk returned status 1
mmc: Could not exec 'tune2fs -L rootfs /tmp/sudmmcSPkpss/internal0p2'
mmc: Could not remove mount directory /tmp/sudmmcSPkpss/mnt: No such file or directory
[Pipe 4] Finishing in error state with status 1
MTC_NOS_READY not received
MTC_NOS_READY not received
MTC_NOS_READY not received
CMT RFS failed
[Pipe 7] Finishing in error state with status 1
========================================

ERROR: Failed to flash images

Where should I go from here? What answers can I provide to hopefully find a fix?

@Subhash

I will suggest following.
1) Flash original fw. (of product code below SIM tray)
2) Then try mix and match of main and cmt. Try not to use higher versions. North Europe seems good.
3) DO NOT try chinese or operator locked fw unless you have exhausted all other options.
4) Try to send it to country of origin and get it fixed if it is still in warranty.

Keep us posted about your progress

@Suyog, I think I've given up now! I do not know the consequences of flashing a Chinese FW (guess they are disastrous!). I think I'm just going to keep this as a navigation device.
Look at the bright side, its time for a new phone