08-05-2024, 06:07 AM
Here is a final update on this.
It's possible to switch IHUs on SPA cars. The replacement IHU part number or its Supersession(s) should match the car.
For example:
My original IHU part number is 32247896 AA and HW 31667665 AA built in 18/08 and has CD connector at the back.
The replacement IHU part number is 32343488 AA and HW 32343493 AA built in 21/02 does not have CD connector at the back.
Main differences, the newer one comes with 120GB SSD drive and the older one comes with 90GB regular 3.5 drive.
Here is the catch,
The replacement IHU would not install or update any application or map on a different car. There are two main reasons.
1) VOLVO ties the IHU, VIN of the car and the installed application versions on the specific IHU number.
2) IHU itself keeps records of the installed apps in internal memory.
There is a workaround,
1) It is possible to swap the hard disk from old to replacement IHU as long as the applications do not require an update on the target IHU or the application(s) has never been installed before on the replacement IHU.
For example:
On the original IHU I had weather app which worked but on the replacement IHU the installed weather app required an update (did not work). When I took the original HD and put it on to the replacement IHU, the weather app still asked for the update although the application inside the HDD came from the IHU was indeed the latest.
The update notification comes from the VOLVO servers, it does not check the actual installed version in the IHU, it checks the last record on their database.
Available applications for download also comes from the VOLVO. Although I had all the applications installed and working from the original HD on the replacement IHU, download center still shows all the apps in the new apps tab.
2) If the replacement IHU does not have all the applications or any app installed but you want to keep the new SSD,
a) Uninstall all the applications on the original IHU on the original HDD. The reason for this, VOLVO keeps record of each installed app on each IHU and it does not check if the app exists on the HDD or not.
b) put the new SSD on the original IHU and download all the applications.
c) put the new SSD back to replacement IHU and install the replacement IHU on the car.
In both options, you won't be able to update or install new apps on the replacement IHU until the car is connected to VIDA and it won't allow to perform total upgrade until IHU software reload is done. I don't know if connecting the car to VIDA would be enough for installing apps or it would require IHU reload no matter what.
I had to replace my IHU to make the camera work and to resolve other issues. So, at least workaround works for me, I got my applications back.
It's possible to switch IHUs on SPA cars. The replacement IHU part number or its Supersession(s) should match the car.
For example:
My original IHU part number is 32247896 AA and HW 31667665 AA built in 18/08 and has CD connector at the back.
The replacement IHU part number is 32343488 AA and HW 32343493 AA built in 21/02 does not have CD connector at the back.
Main differences, the newer one comes with 120GB SSD drive and the older one comes with 90GB regular 3.5 drive.
Here is the catch,
The replacement IHU would not install or update any application or map on a different car. There are two main reasons.
1) VOLVO ties the IHU, VIN of the car and the installed application versions on the specific IHU number.
2) IHU itself keeps records of the installed apps in internal memory.
There is a workaround,
1) It is possible to swap the hard disk from old to replacement IHU as long as the applications do not require an update on the target IHU or the application(s) has never been installed before on the replacement IHU.
For example:
On the original IHU I had weather app which worked but on the replacement IHU the installed weather app required an update (did not work). When I took the original HD and put it on to the replacement IHU, the weather app still asked for the update although the application inside the HDD came from the IHU was indeed the latest.
The update notification comes from the VOLVO servers, it does not check the actual installed version in the IHU, it checks the last record on their database.
Available applications for download also comes from the VOLVO. Although I had all the applications installed and working from the original HD on the replacement IHU, download center still shows all the apps in the new apps tab.
2) If the replacement IHU does not have all the applications or any app installed but you want to keep the new SSD,
a) Uninstall all the applications on the original IHU on the original HDD. The reason for this, VOLVO keeps record of each installed app on each IHU and it does not check if the app exists on the HDD or not.
b) put the new SSD on the original IHU and download all the applications.
c) put the new SSD back to replacement IHU and install the replacement IHU on the car.
In both options, you won't be able to update or install new apps on the replacement IHU until the car is connected to VIDA and it won't allow to perform total upgrade until IHU software reload is done. I don't know if connecting the car to VIDA would be enough for installing apps or it would require IHU reload no matter what.
I had to replace my IHU to make the camera work and to resolve other issues. So, at least workaround works for me, I got my applications back.