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Thats too bad. But thanks for letting me know. i learned something new today, this will tell me that now we cant trust anyone that sells copy cause now they are putting viruses, well unless they guarantee it. Just be careful on what the tech may say also, cause it may still be an easy fix. I wish I had my hans on the unit to figuire out the problem.

Sorry for the delay, I got so busy and didnt get any spare time to reply. After you performe a new upgrade disk, the unit will go to a succesful mode. Since you have a copy disk it is normal that the unit will say at startup (insert appropiate disk),but after a few seconds it should go away. Burned disk dont have the appropiate keys and get skiped,they erase important data that its hard to recover when going back, is like when making a copy dvd and skip the previews but in this case we need every data to format. in your case the original version system program must be 1.00 and GPS program ha

Hello.I know how frostrating can be when something goes wrong specially after spending alot of money on the unit. I can try to help you with the knowlage i have with avic D1-D2 unit. Am not an expert on head units but I know about computers alot & how our unit runs with(BIOS). Everything now in days needs new upgrading. I still cant understand why Pioneer cant make it a bit easier on us by sending us new upgraded so our unit are kept up to date, but i guess Pioneer wanta us to buy new units as they come..Units like this requires new upgrading. My unit needed a few adjustments i try to keep

I went ahead and refresh on how to do the Downgrade on my System. At first i had a little glitch, but later it worked. I also tested the language setting and also worked.I took pictures from my cell phone as instructions but it seems kinda blurry, i think it better off with the instructions. Make sure you are using the original disk. also check if your original disk is not scratched cause that can be the problem. I noticed on Ebay there is a new upgrade for 2010.it is not the OEM version but They guarantee it to work on your system. http://cgi.ebay.com/Pioneer-AVIC-N1-N2-N3-N4-D1-D2-D3-2

I can assure you that if i get my heands on your unit i can get it back on track. I know there are many ways on resolving the issues into the service menu. The Bios can be tricky sometimes. Since u have already decied on taking it to get it fix, I advice you not to let them rip you off. there are some honest tech services and get the jjob done right. But theere are also dishonest people that may want to tell you other problems found in the unit just to get youre money. Alright am curious how it went, yeah let me know. Thanks. Luis. Thanks for youre complement

Remember be patient>>>>>Since the system is corrupted you get this NG signs, I really don`t know what Dragon Connect means, but lets try this exact instructions while changing the language: remember it doesnt matter what language it is, go to system setting and change the Language then let it install(upgrade) but make sure it goes well and finishes.then change the language back to English, but hit the eject button before the unit has a chance to start the upgrade. You will see "insert the apropiate disk" message. Take your old working disk(80mt) for example and place it in

Hello........Ussually when the system says NG there may be a problem with ure screen, meaning the screen may be wearing out or becauswe the system is curropted.. If ure screen is working fine. Try to reset the system to see if that fixes the problem,then try the steps again on how to do downgrade. there is anothere way how to do the downgrade, all you have to do is go to the change language setting, pick any language. Then go back to English and the system should update itself to the old vertion. Make sure to do this with the original disk. Hope this helps.

Hello for members that have message INSERT APPROPIATE DISK on their system and became useless. epecially for those who had upgraded the system from fake disks etc, and wish to downgrade because of bad disk, or because the System took the wrong Firmware from curiosity. Well say hello to the Original old version and no more of the stupid annoying INSERT DISK... Well here is the solution. For those who want back the Old version. 1. GO TO THE SERVICE MENU SCREEN. If you don’t know how to get there, make sure you have the radio on with the original disk inserted in the DVD-ROM. EX: my versio