Changing the inside interface Subnet using ASDM while maintaining access when using BVI Bridged Groups in ASA 9.8

We can't seem to use ASDM to change the inside interface on new two Cisco ASA 5506x devices.

We have experience with ASDM before the bridged group config was added in V9.8. However, in these new devices, we can't seem to change the default config from the 192.168.1.1 subnet to what we want to use them on. Using Step 4/12 in the startup wizard the Edit button when selecting GigabitEthernet1/2 does nothing? If I try to change the BVI1 bridged group IP ASDM will either return an ERROR when applying or hang?  

I have even dabbled with the cmd line to try to do this but always get an error.

I have spent two days trying to get either of these devices working properly to no avail. I need help, the cisco forums are rubbish imho and there seem to be very few 9.8+ links on how to do this. I am not sure where this is going wrong?
Assist-NetopaAsked:
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Assist-NetopaConnect With a Mentor Author Commented:
Update:

I have managed to get the inside interface re-configured by the following:

Connecting to the console interface using the USB cable and the Cisco USB console driver
https://www.petri.com/cisco-usb-console-connection-setup

Then set the Bridged Group Interface BVI1 to the new subnet IP:

enable
conf t
interface BVI1
ip address 192.168.x.1 255.255.255.0

This changes the bridged group IP and all the GigabitEthernet adapters 1/2 -1/8
You can see this with:
sh interface ip br  - (show interface ip brief)

then get yourself re-connected to ASDM for easier configuration

http 192.168.x.0 255.255.255.0 inside_1  - This is the Port 2 on the back which your management PC/switch is connected to

You'd have to do the same for inside_2 etc to be able to connect from those ports too

I am now back in ASDM and will continue with the config and see if there are any other Cisco gotchas for non Cisco gurus!!!

Alan
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atlas_shudderedSr. Network EngineerCommented:
Is the interface that you are attempting to change active in the up/up state when you are trying to change the IP?
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Assist-NetopaAuthor Commented:
Yes, it is the same interface GigabitEthernet1/2 that the management PC is connected to.
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Assist-NetopaAuthor Commented:
Found the answer myself
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