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Audi MMI3GP/3G+ firmware downgrade
16-01-2019, 08:29 AM,
Post: #1
tcp443 Offline
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ZTAudi  Audi MMI3GP/3G+ firmware downgrade
hi guys,

need some advise. its for audi mmi3gp / 3g+ headunit(s)

if say i have updated the mmi to K900 / K942, is there a way to downgrade it back to K700? 
should i do an emergency update by using K700 firmware? 
would this help?

fyi. the k900/k942 firmware has green menu and emergency update enabled. so it should no issues to perform it. just wondering if can be done like that.

please advise.
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16-01-2019, 21:24 PM,
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Soft Offline
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RE: Audi MMI3GP/3G+ firmware downgrade
Why would you want to do that ?
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17-01-2019, 00:37 AM,
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tcp443 Offline
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RE: Audi MMI3GP/3G+ firmware downgrade
(16-01-2019, 21:24 PM)Soft Wrote:  Why would you want to do that ?

Need to test something out but please tell me. Is it possible? If yes how please?
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21-01-2019, 11:14 AM,
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pydzik Offline
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RE: Audi MMI3GP/3G+ firmware downgrade
Yes it is, but only the core parts will be downgraded to 700 with emergency upgrade.

Process for that is simple. Put in the SD card with desired version and start the emergency upgrade. It will go into boot loader and flash MMI3GAPP and few others modules with the ones from SD card. The others will stay on the version you currently have.

So, actually depends on what you want to test.
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21-01-2019, 11:20 AM,
Post: #5
tcp443 Offline
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RE: Audi MMI3GP/3G+ firmware downgrade
(21-01-2019, 11:14 AM)pydzik Wrote:  Yes it is, but only the core parts will be downgraded to 700 with emergency upgrade.

Process for that is simple. Put in the SD card with desired version and start the emergency upgrade. It will go into boot loader and flash MMI3GAPP and few others modules with the ones from SD card. The others will stay on the version you currently have.

So, actually depends on what you want to test.

ok. then once the core modules go to 700 then  i can go thru like normal update using same 700 firmware and get other modules updated to 700 as well?
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