Flashing N900: CMT flashing failed
 

Hi,
I've been using my N900 for about a year now. A day ago I lost all the telephony services; it appeared ? at random, although it may have been after a software update. Googling around I found a number of posts that indicated flashing the brick might help.

I'm using Ubuntu 10.10, and the flashing process goes fine, right up to the end, when it reads : CMT flashing failed. It's reset all my applications, but the telephony services remain dead. FWIW, initially the 5 flashing dots on startup were going at a rapid and semi-random rate; they're now back to a sequential pattern.

I can't find any indication as to what's gone wrong. Do I need to use an alternative OS? I've appended the full output.

Reading through it I note my toy has a hardware revision of 2101, which seems to be a fairly early model. Is that relevant?

Re: Flashing N900: CMT flashing failed
 

Odd, it usually says erasing cmt first before it flashes it

Re: Flashing N900: CMT flashing failed
 

I'm guessing your radio module died - Thus, it can't even talk to it to erase -OR- flash.

Re: Flashing N900: CMT flashing failed
 

generic issue, a visit to nokia service centre should be done at earliest

Re: Flashing N900: CMT flashing failed
 

OK, thanks.

Re: Flashing N900: CMT flashing failed
 

Update: I returned it to the service centre last week. They rang yesterday; flashing it failed to fix the issue apparently (... ) so they've sent me back the brick and told me they'll ring if there's a software update that might help.

To be fair, the N900 was never released in NZ, and it sounded like they may have been a bit out of their depth, but brings a whole new meaning to service; You send us a brick, we can fix it to work like... a brick. Does buying over the internet void your warranty?

Re: Flashing N900: CMT flashing failed
 

Mda-a... even Sony is better - at least they fixed my old PALM camcoder in USA, although I bought it is Switzerland.

Re: Flashing N900: CMT flashing failed
 

Buying over the Internet doesn't, but buying in a country where selling isn't authorized might.

Re: Flashing N900: CMT flashing failed
 

I know, I know. It just seems a bit silly that I could have flown around the world a couple of times while they had it, but because NZ never officially saw it on sale there is "no support"- or at least none worth having. Do you reckon if I posted it to a friend in Australia it'd suddenly become a solvable problem?

Re: Flashing N900: CMT flashing failed
 

Hey guys

I really need some help here.
I have the same problem.when i tried to reflash the phone with maemo flasher i got this error:CMT flashing error
I used the latest global firmware:RX-51_2009SE_20.2010.36-2_PR_COMBINED_MR0_ARM
Also tried flashing eMMC as well,no luck with that.

Is this software related or hardware?

Thanks

Re: Flashing N900: CMT flashing failed
 

Hardware. Go to the service center to get yourself a new device.

Re: Flashing N900: CMT flashing failed
 

hey guys i am new here, i am using a n900 in india and i am having the same error

cmt flashing failed

secondly i would like to ask you people, while flashing which .bin should be flashed 1st ? emmc or the FIASCO ?

thankyou !

regards
Mayur

Re: Flashing N900: CMT flashing failed
 

EMMC first.

Re: Flashing N900: CMT flashing failed
 

Hello!

Having the same problem-erasing cmt failed, also no sim...
Sometimes I have been able to flash but most often not.
No warranty left, is there any hope?

Re: Flashing N900: CMT flashing failed
 

1st ---i dnt remember name of file
2nd u hav to flash vanilla

Re: Flashing N900: CMT flashing failed
 

better u flash on linux or win7

Re: Flashing N900: CMT flashing failed
 

Flashed the vanilla, went fine. Then I tried to flash the rootfs again but the problem persists.

I am using linux (mint).

Re: Flashing N900: CMT flashing failed
 

You receive this issue ( CMT flashing failed) because you don't receive signals from your Network provider. If you had before the problem with "All telephony funtions...." , you may solve first this issue, ant then try to reflash your N900. I had the same problem, but finaly I solved it. Praise the Lord :)

Re: Flashing N900: CMT flashing failed
 

PLEASE HELLLPPPPP!!! DID EVERYTHING BT CMT FLASHING FAIL DOSENT SEEMS TO GO!!
Please if someone have a succesful solution then please tell me....
otherwise i have to knock nokia service center doors..
Please suggest me something if i can repair it myself..:confused::(

Re: Flashing N900: CMT flashing failed
 

Sorry for bumping this oldish thread but I wanted to share my fix.

I had the CMT failed error for many hours even when using multiple OSs, for some reason pressing on the battery with some force before and during the flashing process fixed it for me.

Maybe it is due to the lack of contact with the SIM card slot I've read about.

Re: Flashing N900: CMT flashing failed
 

My oldest N900 needed a reflash again recently, and it too had this error (the N900 in question stopped being my only/primary device precisely because of the telephony-functions-disabled error) - anyway, I had this error too (that, or alternatively, on a few attempts I got other more obscure CMT related errors), and after a bunch of attempts to reflash it that way, I gave up, and then next thing I know a few minutes later it booted up again, working fine. Perhaps it's possible that you don't actually need the CMT flashing part to succeed, and the rest of the flash already gets done before the flasher fails due to CMT error(s)?

*Shrug* Worth some more testing.

Re: Flashing N900: CMT flashing failed
 

MT:
I rebooted numerous times after the flashing apparently failed and I was greeted with a very strange looking (missing fonts I presume), and completely unusable, display.

From what I've read many vital steps come during and after the CMT flashing phase (such as setting up the filesystem).

It's strange how this error effects those with the 'telephony functions disabled error' (including mine), even more strange as why pushing the battery in hard eventually fixed the issue.

Re: Flashing N900: CMT flashing failed
 

Hi,

I had the same issue and when pushing battery, like said above, the flashing passed.

I guess the issue is related to the one described in http://talk.maemo.org/showthread.php?t=66870&page=19.

To test, I put some paper under the phone's body and the sheild protecting those chips.

I've tried to reflash my device and it went smoothly. When booting the phone I have no more the message "All telephony functions are disabled. bla bla bla...", just something like "Unable to connect. Contact service".

I guess the hardware problem could be fixed by resoldering those chips or putting some more presure on them.

I'll test and keep you updated.

Re: Flashing N900: CMT flashing failed
 

Yeah! Paper between the battery and the body can work technically but i got a permanent solution! u Just need a pen with a spring and a glue! after a long time my n900 is on its legs again !! JUST HAVE A LOOK AT http://www.jabawok.net/?p=14 ... and try it,,, It WORKED for me! :)

Re: Flashing N900: CMT flashing failed
 

WOW! very nice!

I had the "Al telephony functions"-problem. So I opened my phone (not the 1st time) lifted up the contact-pins to the GSM anthena, but problem persisted...Then re-flashed, but had the CMT failure...I did the "pressure-your phone while ereasing and programming CMT" and the flashing process worked! So, I took your advide and did the following:

https://fbcdn-sphotos-d-a.akamaihd.n...42887194_n.jpg

:). It was a bit scary to take out the aluminium shield for the 1st time!! But now my N900 doesn't lose the THelephony functions so I'm really satisfied :D

Thanx for the advice!

Re: Flashing N900: CMT flashing failed
 

my phone won't finish flashing, i think at the end after kennel or something it says CMT flashing failed or flashing failed can't really see because it closes the cmd soon after, please help me... please

Re: Flashing N900: CMT flashing failed
 

WOWW, Excellent, I repaired it with just one piece of Lentil size of sponge on the back of its battery!!
Now, When i dial *#06# i can read right my IMEI, (Yesterday my IMEI was blank)
BUT still i have not any antenna!
How can i do?

Re: Flashing N900: CMT flashing failed
 

Sorry For Sooo Late Rply!!

If You Still could not figure it out..here is the solution!!

First Try Some Basic Resolutions Before Going For Anything Complicated!!

1) Keep a Piece of paper(or another unused sim) just above your sim slot(obviously with a sim in it) and then try flashing again..

Didn't Work? Ok!

Go For This Tutorial [ http://www.jabawok.net/?p=14 ]

Worked For Me and dktr.k1 as well..

:) Best Of Luck

Re: Flashing N900: CMT flashing failed
 

Your Welcome ! :)