ml_homeboy

Thanks to some people here. My headunit is back again. I am so happy :mrgreen: .

 

Best worldwide community here

Glad to here!

So USB contains right (valid) firmware with the only AVIC500NEX folder? In this case you can try flash firmware using testmode (Write Program Forcedly).

 

Also you can update areas of your backup image file using parts of firmware files without headers. After this you can restore backup with updated firmware.

Hey im running 1.11 now, my usb drive had some partitions on it that needed to be remove from when i was trying to flash the internal card. My Bluetooth is having issue as it is grey out sometimes and I am unable to update the Bluetooth firmware. I see lots of post with other folks having the same issue, but i feel may a wire is pulled off when I disassembled the unit or it may need be reset which I see some folks sell the part on eBay.

I want say Thank You to "Whats Whats..." and Bass_rock for all your help!!!!

Ill update after the weekend when i have the time to tear it apart again.

-Mike

Yes, exactly after testmode_n "mode change" key execution to one-time unlock of password-locked internal sd card. Also you can insert any new sd-card with corresponding size with image on it, but this card will be also password-locked after first start. So you need execute following steps:1) insert usb stick into USB1 (not in USB2) with testmode N key which unlocks you card (mode change)2) turn on your device3) wait until "mode changed" (or something like this) text displayed4) turn off your device (and DON'T turn on again, card will be locked again)5) remove your card and insert into your computer6) write image into this card7) insert card into device again device will password lock this card and boot

OK I have had some success thank you all - much appreciated!

Now the firmware is 1.0.1 and while I'm trying to apply 1.11 the unit complains that there is more then 1 update file on the USB. Maybe I need to do incremental firmware updates?

-Mike

So each of the keys boot a different mode. There is one key that will load the recovery mode with a corrupted internal sd card. I forgot which one it is. But here is a repo I created with scripts to create test keys and the explanation on them. https://github.com/bassrock/AVIC-NEX

 

Ok - im getting lost now; i was hanging in there for a while..

Well can i remove the internal SD card and just drop the image on it?

-Mike

 

I'm not familiar with Mac, but seems like you can use simple dd utility: https://help.ubuntu.com/community/How%20to%20install%20Ubuntu%20on%20MacBook%20using%20USB%20Stick

 

Something like this:

sudo dd if=/path/to/downloaded.img of=/dev/diskN bs=1m

Im not having much luck getting it into test mode with any of the the keys that are in the share you provided. I just need a FAT32 drive and place one of the files ( TESTMODE_N.key) on the root - correct?

Is the stock MAC image write software acceptable or should I look for a 3rd Party?

-Mike

There is at least three testmodes available. Full testmode from working firmware (testmode_a key), recovery boot partition testmode (two copies on two partitions in internal sd card) and easyrecovery mode (located in distinct chip soldered on daughter CPU board - NOR flash).

 

Last mode can be activated even without existing firmware on internal sd card using special testmode_n keys (three N-keys available in the wild, first one for mode change (sd card password unlock), second for copy device mode, I don't remember purpose of third key).

Thanks Again - Project for today!

I'll keep you posted.

-Mike

No need to open or dismount unit. Just write image for your unit into usb stick or sd card (please do not copy img file, use image writer software), and use test mode "copy device" key to enter recovery mode and write contents of your external usb/sd card into internal sd card.

 

UPD: you can download avic 5000 nex image from Adam's website: https://builds.casual-dev.com/index.php?dir=random%2FAVIC%2F

Awesome - but it seems I cant get back into test mode. Is there a way to force the unit into recover mode? I'm in the process of making a new Testmode usb drive as I feel the disk may have been corrupted.

Downloading image now

-Mike

I believe that mode actually does the reverse of what you were trying to accomplish. I recommend opening up your unit and replacing the internal SD Card with a new one that has the appropriate image.

Thanks Bass_Rock - Is there a repository with the stock images hosted somewhere here on the forum or do I need to purchase one from Pioneer?

Thanks

Hi Folks,

I greatly appreciate all the hard work, been enjoying myself adjusting my NEX5000. Ran into a issues as I got a little a head of myself.

I used the "copy" option in TestMode assuming I was copying the internal SD to my USB so it would be easier to look at the file structue on the MAC.

Now I'm dead in the water boot to a "Software Error" and my USB will not boot the unit into TestMode.

Any advice?

Thanks in Advanced!

-Mike

Awesome Worked!!!

Thank You!