How to Replace the Internal MicroSD Card - RT6

[Jeromekjerome]

Thank you, I'll give that a go,but I guess if they are there then it's not going to work. Step 1 I'll have a look

[Jeromekjerome]

That worked, the file names are now right so I guess it's a different problem

[GiveMeABreak]

So a CRC error means the firmware file is corrupt or the media is corrupt (file fails the Cyclic Redundancy Check) so is failing.

This can be down to a corrupt file from an interrupted download or the file has been modified in some way.

Try downloading again and if that fails make sure format the USB stick in FAT32 again - this must always be done before installing the firmware to eliminate any foreign files or problems with the USB.

[Jeromekjerome]

Will do thanks, I'll try a different usb stick as well

[Jeromekjerome]

I read instructions again, properly this time , so bought a 4gb usb stick , carried out full format, and unzipped file again ( I used peazip) but still the same error, although it did take a lot longer to decide that there was a problem. Not sure what to do next, I guess I could buythe software on cd and try it.

[Jeromekjerome]

So, latest update, thanks for the help Marc. I've been on holiday just got back. I ordered the manufacturer update disc and just managed to load it. It took well over an hour but radio display now working, rear camera working. The maps aren't there , I guess because that's not part of the update and the hud and fuel economy etc is still in kph not mph. I did go into units but the only option there was temperature. Am I missing something?

[karpenter]

Hello.
I think every French car user has to come here someday .

I have owned Citroen C4 B7 since 2013 and started to have problems with my "computer". A few months ago it started to restart once in a few weeks, then more often and came to a state that it was restarting every few minutes or every time I tried to push some button. I decided (probably too quickly) to update the firmware (from 2.70 to 2.86B) - I have RT6 unit (RNEG2). I failed using USB, but I "succeeded" from CD. Unfortunately, after going to 100 %, it froze. Then I realized that that must be a problem with the internal micro SD card. I changed the card and (for the second time too quickly) updated my firmware to 2.86B - but without that, I was not able to eject a CD. And it was starting and freezing in a loop. I finally succeeded but with some known problems. Buttons were reprogrammed, I lost BT, I couldn't set a time and date and at the start, I had a Peugeot logo. Then I found mirascript and datexplorer and tried if I could do it that way. And I have found some problems - using datexplorer I simply cannot change values for many things that need to be fixed (like vehicle brand and button functions). I decided to download the User_com.dat and the User_config.dat from github post that showed the same situation as mine for exactly the same car. I compared my file and the one from github and they were mostly the same with some changes that seemed to may repair my car's computer. After that, I decided to upload only the User_config.dat file with the VIN changed to mine. And voila - all the buttons work fine, I was able to manage a BT connection and set timings. I still have a Peugeot logo because it is written in User_com.dat which I still haven't downloaded because many things differed from the file downloaded from the internet and mine - taken from fresh 2.86B. So I don't think I will do that. So generally I have one problem left - echo while phone calls. I found a solution how to deal with that with mirascript but I have no idea why I cannot modify most of the values using datexplorer (1.01 or 1.06). My PC has Windows 10 installed. Does anyone have problems with changing values in detexplorer?

Thanks in advance .

[Jeromekjerome]

This may be a double post but I've now installed both UK and German maps and now, thanks to everyone's help, everything works except it still shows Kmph and metric distances. It default to this when the SD card packed up. I can't find anywhere to change to mph. There used to be a setting in setup before it went phhtt to change but that is no longer there. Anyone got any idea or tips? Many thanks

[jmiguel]

Just leaving here my experience since I had to do this twice on my car and don't want to investigate it again for a possible 3rd time :p

- Find a RT6 2.86 image
- Format a USB drive in fat32 (I did a 2GB partition even though the drive was way bigger)
- Copy the files from the image into the USB drive

Now... the important thing is that the drive do not contain any other file but the ones from the image. This means that we have to download all the hidden files that the OS has created.
For this, on a unix computer (mac or linux) we can do the following:

- Be sure that the drive is not being used by any app
- Open the system app that manages mounted disks (optional, disk utility on mac)
- Open a terminal and navigate to the route of the drive
- Run

Code: Select all

find . -name ".*" ! -name "." ! -name ".." -exec rm -rf {} +

on the terminal. This will remove all the hidden files that where created by the OS
- Unmount the drive on terminal or through the app previously opened. if not sure how to do it... just remove the pen.

(In Windows the created files are different and I've not tested with it... but the goal should be the same: not having extra files in the drive.)

At this point the drive can then be used to flash the system. It will work both for an upgrade as well as for a new installation (new sdcard for example)

[Sweet508Driver]

Hi,
Even though the information on this and other forums has been tremendous help, I was still struggling quite a lot to get the navigation of my Peugeot 508SW up and running again. I think and hope that I have succeeded now...
Let me try to 'summarize'.
- The navigation started to work worse and worse in the beginning of 2024 (database error, insert navigation CD and restarts)
- An injector failed in March 2024 while we were underway. Lot's of error codes because of that. We were ~100km way from home but close to garage that specializes on PSA cars. They replaced the injector. The car gave (again) error message like ESP error, ABS error, etc. minutes after we picked it up. The garage could find anything but we could drive the car home.
- I purchased a DiagBox (AliExpress special) to see what is wrong (nothing obvious) and rested the errors
- While diving into the various errors I also found this forum with info about the failing SD card and root cause for the navigation issues
- I replaced the SD card, installed Version 2.86 and purchased new maps from 'Here' (official one, no copy).
- The maps came on USB but also a RT6(?) software CD (with ancient version 2.21) was included.
- It worked fine for a few months but I had occasional error annoying error messages about engine failure, clutch and what have you. But the car drove (most of the time...).
- Then the navigation started failing again up to point of drive spinning up every 15 s
- I removed the unit and the error messages stayed away!
- Navigation unit is failing and messing up the CAN bus comfort? Maybe this overloaded the BSI causing also errors on the CAN High-Speed Bus?
- So, I bought a used unit. All numbers on both units are the same and they were produced just 2 weeks apart.
- I installed it... Drive spinning up every 15 s...
- Put in the CD with software. Started doing something and unit worked again after an 1 h of installation. I updated the maps.
- However, unit was beeping every few seconds. I figured that was related to a mismatch in VIN.
- DiagBox showed me that the VIN's were indeed different but I could update the VIN in the navigation unit.
- Next day again random failures: Sometimes it works normally, sometimes reboots or just spinning drive from the start --> typically SD-card failure
- When it worked normally, I could see the software version (2.75) and safe the user files (configuration) with Mira script.
- I purchased a new SD card (Industrial grade SanDisk) and installed it (by the way: you only need to remove the bottom from the unit)
- The CD with version 2.21 started installation (?) for ~1 h but after still just spinning drive
- I removed the SD card (I have become quite good at this... and don't even remove the unit anymore, just unplug the square connector an the back, tilt the unit 90o and open it)
- The card proved still completely empty.
- Then I remembered to have read that you cannot downgrade because something is also updated next to the SD card.
- In another thread there was a discussion about version 2.75 and Paul-R was do kind to make software 2.77 available (2.75 was apparently never publicly released)
- I copied the files from the ISO-file to a USB drive (I would have to dig rely deep to find CDR's..). I removed the hidden Windows files.
- The first attempt failed after 5 min, but the 2nd attempt looked very promising with updates of the process on the screen! It showed that it was partitioning the SD card and installing all kind of software.
- It restarted and came with graphics mode showing please wait, but also an annoying period beep
- The another restart and 'please wait'
- After ~30 minutes I became fed up and switched off the contact, and restarted the car. Fortunately, everything appeared normal!
- The first map installation froze after a couple of minutes. I switched off the contact, waited for everything going to sleep and tried again. Then it succeeded.
- Navigation on the console screen worked. Although there was no navigation info and 'radio off' notice on instrument panel.
- I ran Mira script to put the use files back. Now navigation info on instrument panel works again!
- I wanted to check for echo with my (Samsung/Android) mobile phone. I could connect via Bluetooth and stream audio, but the car does not switch to the phone audio when there is a call (although phone call option is activated on phone).
- It does work well with an iPhone. So, not sure if it a car or a phone issue.
- Finally I installed Alert zones. That only takes a minute or so.
- Still can't belief that it is working now...

Learnings:
- SD-card change: You don't need to remove the navigation unit from the car and the top cover of the unit (and no need remove the delicate ribbon cable, or have the risk of dropping the CD drive) because the SD-card can be reached after the bottom cover with the 5 screws has been removed
- Software downgrade is (indeed...) not possible
- Don't give up easily. After a few tries the install might go ahead after all.
- It can take many hours....