Renault Laguna 3 van bouwjaar 2010 Carminat problem time stamp

[Valwit]

Thank you Valwit! Did you have to re-zip the whole folder afterwards, or just drag all of the contents (in the same file structure) to your copy SD card?

Also, as I've chickened-out of removing the SD card (!) at the moment, can anyone please tell me what size and format the replacement (copy) SD card should be, please?

Just drag it out.
As for the card: i believe everything below 8 GB should work

 

[Bristolian]

Just drag it out.
As for the card: i believe everything below 8 GB should work

Thank you once again.

 

[apak]

I also manage to tweak the tdb ECU to show the clock not asociated to the gps of my scenic 3 (2009). Need a ODB2 tool, a pyren with ECU files.

It delays quite often but it´s a secundary solution. Already patched PNDnavidator to a full navcore SD card, and got back gps clock also.

Thanks

 

[GeoffTolton]

using Windows PC, and a copy of the orginal SD, not previously patched/enhanced/whatever.
I downloaded navcore_8843.3130258.Carminat_TomTom.cab (just googled it) inside was the file
install/DS_1/IA0000700006swlimage0.zip
i unzipped it (using 7zip, BTW: it also allows you to access files with the ext3_loopback) and copied all the files to the root dir of the SD card. Windows asked if i want to replace 2 files, I denied.
This way I had ~tsystem (which i renamed to ttsystem) and PNDNavigator on my SD.
I patched PNDNavigator with the carminat-patch.html posted here before (I'm lazy, that's faster than HEXing around).
Clock is back

Thank you Valwit. This worked perfectly! Thanks too to MacPat for all of his work and the excellent carimat-patch.html

 

[GeoffTolton]

Honestly, I'd say pretty much the same thing. Anyone who thinks consumer electronics are likely to be supported for 15 years aren't going to be very happy with many things. The only real competition for this kind of device is Garmin, and they don't offer support for 15 year old devices, either. In fact, it's my experience that Garmin shuts down firmware support much sooner than TomTom used to do for Nav2 devices like the Carminat. The Carminat system was introduced in 2009, and wasn't being sold after 2012.

It's entirely possible that the infrastructure (IDE) necessary to do a new code build for a device that old no longer exists in the TomTom development lab, or if it does, there may no longer be anyone there who knows how to use it. Your device is already a couple of full generations old.

Whilst I agree that you can't expect electronics to be supported forever I do expect that manufacturers should show some respect for their customers. They should issue an End of Life statement detailing when they plan to stop support, giving as much notice as possible. They should also not continue to sell maps and other updates if they have silently withdrawn support. I have seen no such statement from Tom Tom so my assumption is that they still support the Carminat system and so still have the wherewithall to produce a patch.

 

[canderson]

Whilst I agree that you can't expect electronics to be supported forever I do expect that manufacturers should show some respect for their customers. They should issue an End of Life statement detailing when they plan to stop support, giving as much notice as possible. They should also not continue to sell maps and other updates if they have silently withdrawn support. I have seen no such statement from Tom Tom so my assumption is that they still support the Carminat system and so still have the wherewithall to produce a patch.

Warning has been given by TomTom for all of the devices for which it was alone responsible, but they expected the auto manufacturers to make known the future of devices incorporated into their vehicles. Note that among the list below, you do not see those devices that are installed in Renault, Lexus, Fiat, Daihatsu, Toyota, Subaru, Mazda or Opel/Vauxhall.

GO 750 (LIVE) (W4/W7/W8)
ONE 30 Series (PA/PB/PC/PE/PF/PH/PI/PK/PN/PP/PL/PO/PQ/PV)
XL IQ Routes² (GG/GH/GI/GJ/GP)
VIA 110(AG)/130/135(AV/AQ)
GO 630 (JB)
GO 740 LIVE (WR/WL)
XL IQ Routes (RU/RS)
GO 825 (FY)
ONE XL (L1/L2/L3/L4/L7/L9)
ONE 2nd Edition (E1/E2/Z1/Z2/Z3)
GO 300 (M1)
GO 520 (M2/M4)
GO 550 LIVE (W3)
VIA 120 (AI)
VIA 125 (BH)
GO 825 (FB)
GO 930 (J6)
GO 920 (M8)
GO 1005 (SI)
GO 2535 (SM)
GO 1005 (SQ)
XL v4 (GV)
GO 950 (W1)
GO 750 (W6)
START 50/55 (GZ)
XL 30 Series (RB/RC/RH/RI/RM/RN/RO/RV)
Start (XA/XB/XC/XD)
GO 1000 (LIVE) (TD/TB)
VIA 120 (LIVE) (AN/AU/FM)
GO 720 (M6/M9)
GO LIVE 1050 / GO LIVE 2050 (SB)
XL IQ Routes LIVE (R1/R2)
Start 20(AO)/25(BK)
ONE XL HD Traffic Europe (F3)
ONE 3rd Edition (Y1/Y2/Y3/Y4/Y5/Y7/Y8)
GO 500 (2005) (M3)
GO 530 (J1/J2)
GO 710 (V5)
VIA 220 (AR)
VIA 125 (BM)
VIA 125 (FP)
GO 7000 (LF)
XXL 540 WTE SERIES (RZ)
GO 1005 (SJ)
GO 2535 (SN)
GO 1005 (SR)
XXL CLASSIC SERIES (GX)
GO 750 (W2)
GO 940 (WB)
XXL IQ Routes/Classic (RY/RW/RX/GL/GQ)
Start²/Start Classic (XN/XM/XF/XH)
GO 1005 (LIVE) (SF/SB)
GO 700 (M5)
GO 730 (J3/J4)
ONE IQ Routes (P1/PS/P2/PU)
GO 820 (FT)
Start 60(WM)
ONE 1st Edition (G1/G2)
GO (B1)
GO 510 (V5)
GO 540 LIVE (WT)
VIA 110 (AH)
VIA 125 (BG)
GO 820 (FA)
GO 730 (J5)
GO 9000 (LG)
GO 1005 (SE)
GO 2535 (SL)
GO 1005 (SP)
GO 910 (V7)
START 40/45 (GY)
GO 950 (W5)
START (XO)

 

[josep]

Donde puedo conseguir fastactivate

 

[harmonie.m]

bonjour,
Comment faire ma version est 8.842..
Merci d'avance

 

[Willy875]

bonjour,
Comment faire ma version est 8.842..
Merci d'avance

infuture, please communicate here in English as that is the format forthis forum.

 

[Mike`s GT]

Moin, herzlichen Dank für diese Analyse. Hervorragende Arbeit! Ich habe notepad++ installiert, anschließend das hex-plugin für notepad++ aktiviert. Die Datei steht im Hauptverzeichnis der SD-Karte. In notepad selbst view in hex unter plugins aktivieren. Die beschriebe Zeile suchen, ändern und speichern. (Megane3 Coupe 2010, Carminat mit dem aktuellen System)

Welche Zeile soll man da suchen?

 

[Mike`s GT]

Habe einen Megane 3 GT Mit TomTom Navi und seit ca. einer Woche auch das Problem mit der fehlenden Uhrzeit.
System ist aktuell (8.843)

 

[dhn]

@Mike`s GT

English is the language of this forum. Please abide by the rules. Thanks.

 

[heavenware]

Thanks to Valwit

also meine Original DACH SD Card von 2010 hat sich aktualisieren lassen dass ich die Uhrzeit wieder sehe, ich habe mir jedoch vor ein paar Wochen mir noch bei ebay für 30€ eine Europa Karte mit Blitzer gekauft, bei der funktioniert das ganze nicht, die Karte geht zwar in meinem NAVI aber ohne Uhrzeit und spricht auf den Patch von Walvit nicht an..
was kann das sein ? Danke

So, my original DACH SD card from 2010 updated so I can see the time again. However, a few weeks ago I bought a Europe map with speed camera warnings on eBay for €30, and it doesn't work. The map works in my sat nav, but it doesn't display the time and isn't responding to the Walvit patch.What could be the problem? Thanks.

 

[bpjl]

Hi all,
After extensive reverse engineering (together with AI, Claude) of the PNDNavigator binary on the Carminat TomTom SD card, I've found the root cause of the --:-- clock issue that many users are experiencing since around 19-20 April 2026, and more importantly, a fix.

What's happening - the root cause
The Carminat TomTom uses a SiRF Star III GPS chip (GSW3.2.4TT_3.1.00.12-C35B1.02) that stores the GPS week number in a 10-bit field, which can only count up to 1024 weeks before rolling over to zero. Around 19-20 April 2026, we crossed GPS week 2415. This is exactly 1024 weeks after GPS week 1391, which corresponds to 6 September 2006.
This means the chip's 10-bit counter has overflowed once, and the chip now thinks the date is somewhere in September 2006 — not the classic 1024-week rollover (that won't happen until November 2038), but rather the chip losing track by exactly one full 1024-week cycle.
We can confirm this because when the loopdir folder was deleted from the SD card during testing, the system recreated it with a timestamp of 6 September 2006 — exactly what the GPS chip was reporting as the current date at that moment.

Why the clock shows --:--
Through reverse engineering the PNDNavigator ARM binary using Ghidra, I found the function CClock:oCurrentDateTime. This function retrieves the current date and time and returns it to the clock display. It contains a hard-coded year threshold check:


c if (year < 2007) { // return invalid / show --:-- }

Because the GPS chip reports a year of 2006, this check fails and the clock display always shows --:--. The navigation itself continues to work because position fixing doesn't rely on the absolute date.

The fix
The fix is to lower the year threshold from 2006 to 1977 (before the GPS epoch of January 1980), so the software accepts any year the chip reports — including 2006.
On cards where PNDNavigator is a standalone file on the SD card (this applies to cards that were modified using the FastActivate tool):

1. Make a backup of PNDNavigator on your SD card first
2. Find the following bytes at offset 0x402928 in the file:

d6 07 00 00

1. Replace with:

b9 07 00 00

On Mac, using Python:

python data = bytearray(open('/Volumes/TOMTOMDISK/PNDNavigator','rb').read()) file_offset = 0x402928 assert data[file_offset:file_offset+4] == bytes([0xd6, 0x07, 0x00, 0x00]) open('/Volumes/TOMTOMDISK/PNDNavigator_backup','wb').write(bytes(data)) data[file_offset] = 0xb9 data[file_offset+1] = 0x07 open('/Volumes/TOMTOMDISK/PNDNavigator','wb').write(bytes(data)) print('Done!')

On Windows, using a hex editor like HxD:

• Open PNDNavigator
• Go to offset 402928 (hex)
• Verify you see D6 07 00 00
• Replace with B9 07 00 00
• Save

Important notes

• This fix applies to modified/unlocked SD cards where PNDNavigator exists as a standalone file
• On original unmodified cards, PNDNavigator is embedded inside loopdir/loopback.ex3 (a Linux ext3 filesystem image) — patching that requires Linux tools to mount the filesystem and is more complex
• The navigation itself continues to work correctly even without this fix — only the clock display is affected
• The fix has been tested and confirmed working on a Renault Laguna with Carminat TomTom firmware version 8.843

Additional findings
We also patched the ephemeris files (packedephemeris.ee, ee_meta.tlv, ee_meta.txt) to correct their timestamps. While this did not fix the clock display by itself, it may help with GPS fix acquisition time.

Ok, I have to say nothing in there looks like a file the patch can be applied to. Let's say, it was a false assumption, my apologies!

I don't know what I did exactly about 7-8 years ago to get an extracted version of PNDNavigator. It probably has something to do with the map updates I installed back than, probably not via an official way

I used TT FastActivate back then. I took a look at how TT FastAcivate works and you indeed need to install/copy a version of PNDNavigator (and a lot other files) to your SD card manually. So, that's how I got it on my SD card I think...

For everyone else who has this file, here's A HTML file you can download to your PC. Open the file in your favourite browser and drag your PNDNavigator on there. Using Javascript the correct offset will be located and a patch will be applied. You can than save your patched file to your SD card. Be sure to make a copy of the original first, that way you can always go back.
Important to know, no files get uploaded anywhere, everything happens on your own PC.

https://ictapnl-my.sharepoint.com/:...iSrYMDmQ7Dq46AaF7L_l2cevZvF21-qq1xfA?e=FqWgRp

The instructions on how to use TT FastActivate are still widely available online, so for those who only have an original SD Card maybe you can first get the needed files via those instructions. AND AGAIN, I can't say this enough: Make backups of your SD card before you start, if anything goes wrong, restore and retry...

using Windows PC, and a copy of the orginal SD, not previously patched/enhanced/whatever.
I downloaded navcore_8843.3130258.Carminat_TomTom.cab (just googled it) inside was the file
install/DS_1/IA0000700006swlimage0.zip
i unzipped it (using 7zip, BTW: it also allows you to access files with the ext3_loopback) and copied all the files to the root dir of the SD card. Windows asked if i want to replace 2 files, I denied.
This way I had ~tsystem (which i renamed to ttsystem) and PNDNavigator on my SD.
I patched PNDNavigator with the carminat-patch.html posted here before (I'm lazy, that's faster than HEXing around).
Clock is back

I’d like to give a huge thanks to @MacPat and @Valwit for their hard work and persistence. Thanks to you and your advice, I managed to get this darn watch working again. My wife is happy—and I’m relieved.

By the way, I updated the maps from version Europe_1065.10694 to Europe_1150.12721. It’s a shame I couldn’t “get” anything more up-to-date, but this is still pretty good.

 

[Valwit]

I didn't do anything, so no need to thank me. Just wrote down how i patched mine on windows with the information and tools provided already here, so all credits got to @MacPat

Heavenware: the DACH SD, does it have the PNDNavigator on it? Is it 8.843?

 

[heavenware]

ja auf beiden ist der PND Naviiagtor drauf mit der Anleitung von dir, bei meiner originalen die läuft einwandfrei....vielen Dank....
bei der Ebay Karte ist nichts drauf, nur Ordner, geht auf Anhieb im Navi, lässt sich aber nicht mal kopieren auf eine freie Karte

Yes, both cards have the PND Navigator installed with your instructions. My original card works perfectly... thank you so much...The eBay card has nothing on it, just folders. It works immediately in the navigation system, but I can't even copy it to a blank card.

 

[nofx]

using Windows PC, and a copy of the orginal SD, not previously patched/enhanced/whatever.
I downloaded navcore_8843.3130258.Carminat_TomTom.cab (just googled it) inside was the file
install/DS_1/IA0000700006swlimage0.zip
i unzipped it (using 7zip, BTW: it also allows you to access files with the ext3_loopback) and copied all the files to the root dir of the SD card. Windows asked if i want to replace 2 files, I denied.
This way I had ~tsystem (which i renamed to ttsystem) and PNDNavigator on my SD.
I patched PNDNavigator with the carminat-patch.html posted here before (I'm lazy, that's faster than HEXing around).
Clock is back

Laguna 3 2010 solved this way, it was so easy. Thanks everyone o worked on this

 

[Taffyjones]

I’d like to give a huge thanks to @MacPat and @Valwit for their hard work and persistence. Thanks to you and your advice, I managed to get this darn watch working again. My wife is happy—and I’m relieved.

By the way, I updated the maps from version Europe_1065.10694 to Europe_1150.12721. It’s a shame I couldn’t “get” anything more up-to-date, but this is still pretty good.

Laguna 3 2010 solved this way, it was so easy. Thanks everyone o worked on this

Hi, Good morning to you all. I have the same problem with my 2010 Renault Grand Scenic III 1.5 dci Privelege Tom Tom. Would you be able to make and send me a new sd with the Europe maps and the new clock code that is working please.? I would pay for it, I miss my clock. If you can do it I would give you all my details. I am a disabled Veteran Pensioner wh lives in Dublin, Ireland.

 

[zikaman32]

Δεν έκανα τίποτα, οπότε δεν χρειάζεται να με ευχαριστήσετε. Απλώς έγραψα πώς έκανα patch στα Windows με τις πληροφορίες και τα εργαλεία που παρέχονται ήδη εδώ, οπότε όλα τα εύσημα πηγαίνουν στον @MacPat

Heavenware: το DACH SD, έχει το PNDNavigator πάνω του; Είναι 8.843

Γεια σας κύριε
You think that this will be working to an original card?

 

[BoRo]

Is there a sollution for people that are not very good with pc? I dont understand how this works with patch etc..