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Hello everyone, I badly need help with Pioneer Carrozzeria MRZ09, it is stuck on a bootloop, head unit is practically unusable...anyone please help me to restore functionality of this excellent rated head unit, ill be grateful to you guys

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Can you get into test mode?

You can achieve this by pressing MENU/NAVI button with your right pointer finger constantly and then press RIGHT LEFT RIGHT LEFT RIGHT LEFT with your left pointer finger, and then release all.

Once this is achieved you will see a list of choices in Japanese.

DO NOT CHANGE ANYTHING YET.

If you manage this, you will need to replace some files which you can find in another post here.

Lets take it step by step so please either post here for others to learn or pm me for further instructions

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Can you get into test mode?

You can achieve this by pressing MENU/NAVI button with your right pointer finger constantly and then press RIGHT LEFT RIGHT LEFT RIGHT LEFT with your left pointer finger, and then release all.

Once this is achieved you will see a list of choices in Japanese.

DO NOT CHANGE ANYTHING YET.

If you manage this, you will need to replace some files which you can find in another post here.

Lets take it step by step so please either post here for others to learn or pm me for further instructions

Hi, Yes I can enter Test Mode with a bit of struggle....what to do next? Which files to replace and how?

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you can download backup this is from mrz05 and check with yours what is missing then add on but make sure you do backup of yours first https://mega.nz/#F!nUwjVLxZ!1soULiYcJRyf1W3ANrSFZg

Thanks pal...  Any idea which file or folder in particular is responsible for booting up the device? I can concentrate on that file or folder then, makes it a lot easier, looking forward to hear from you manio112 and others..

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