alright guys I'm going to post up what I have so far since I now have a way to go back to 1.08

after further playing around the process is a bit easier than I originally thought. All you need to do is take the firmware you want to flash and change the names of the files and folders to that of what version the device THINKS it is.

for example. if going from 4000 to 4100, the 1.03 FW is named AVIC5100NEX, this needs to be AVIC5000NEX. inside this folder there are a bunch of other files and folders with the name 150 in it, every 150 must be changed to a 140 so that the NEX4000 thinks it is the correct file for it. 

When flashing back to 1.08 you simply need to change the 1.08 file structure so that it looks like a NEX4100 update.

At this moment ALL BT Audio is not working. you cannot get any audio that functions over BT to work, this means pandora / Android Auto (just the audio) / phone calls, and anything else that uses BT as the means for audio. 

As far as I can tell this is due to the user not being able to toggle BT Audio from "off" to "on" in the settings of the device like you can on 1.08, it is stuck off and this is apart of the USERDATA folder which I don't currently have a way of reading.

What I am hoping is that this is a problem for the 4100 too and the will release a new FW soon that we can play with. 

If anyone has any idea of how to open the .prj files to view and edit its content please advise!

4000 (1.08) to 4100 (1.03)

http://www.filedropper.com/4000to4100_1

4100 (1.03) to 4000 (1.08)

http://www.filedropper.com/4100to4000test1

Both me and newtonfb have gone to 1.03 and back without a problem.

I'll take a look at the 6000 and 8000 units now to make sure its structure is the same.

Another Interesting find..... not only is the structure the same, the files appear to be identical as well. I can't 100% confirm this but it would be interesting if a gen 1 FW was the same for all devices and just model # specific.

8000 to 8100 file:

http://www.filedropper.com/8000to8100

I'll be posting these links on the front page too for easy access

WARNING: there are things that don't work right now. On my 4000 I have no audio in CarPlay.

It seems whatever handles the handoff of modes for the different audio stuff doesn't work in this. That's why android auto and CarPlay have no sound. This is something we may need to figure out by pulling pieces from the 1.08 firmware and seeing if they fit with the 1.03 firmware.

Currently reverting to 1.08. Will let everyone know of the jump back is painless.

Edit: yep the downgrade back worked without a hitch. Let's try to figure out how to get the bugs out of this firmware and start having fun!

jump back should be super easy.

And yes CarPlay audio will not work either as this too is over Bluetooth i believe. I think everything comes back to that Bluetooth Audio "off" not being able to be triggered to "on". If we can get around that then we should have a pretty solid build.

jump back should be super easy.

 

And yes CarPlay audio will not work either as this too is over Bluetooth i believe. I think everything comes back to that Bluetooth Audio "off" not being able to be triggered to "on". If we can get around that then we should have a pretty solid build.

Yep. I was able to jump back fine. No actually CarPlay runs everything including phone calls off USB. it's interesting to note that if I turned off CarPlay iPod audo would work off my phone, but with CarPlay on there is no sound.

CarPlay audio worked just fine for me. However the microphone does not work, so there's very limited CarPlay functionality. I am currently running the newest iOS beta. Some settings are not accessible such as camera, but it still worked in reverse. My SiriusXM presets were adjusted to different channels but did not require a reset.

I do not have access to an android auto capable device right now, but there are many improvements to functionality in the firmware. New settings, such as the EULA screen coming at startup instead of at CarPlay launch (would love to see it just go away), and with new CarPlay settings in iOS 8.3 you can allow CarPlay without unlocking device, plug and play like android auto. New dimming settings are not acessible. It seems to be off to a good start though, great work. Thanks.

covert_death let me know when you get the 6000 file

Curious on the bluetooth (possible CarPlay and Android Auto), could there be a difference in the bluetooth chip thats causing the no audio problem?  I am wondering if there were any hardware changes other than screen.

Speaking of screens, I am curious if its possible to upgrade the screen to the newer screens, once parts come available.

CarPlay audio worked just fine for me. However the microphone does not work, so there's very limited CarPlay functionality. I am currently running the newest iOS beta. Some settings are not accessible such as camera, but it still worked in reverse. My SiriusXM presets were adjusted to different channels but did not require a reset.

 

I do not have access to an android auto capable device right now, but there are many improvements to functionality in the firmware. New settings, such as the EULA screen coming at startup instead of at CarPlay launch (would love to see it just go away), and with new CarPlay settings in iOS 8.3 you can allow CarPlay without unlocking device, plug and play like android auto. New dimming settings are not acessible. It seems to be off to a good start though, great work. Thanks.

are you running a beta iOS 8.3?  where would those settings be? Is it on the iPhone or the radio?  I have never seen any CarPlay settings on my iPhone (I'm running the current 8.2)

It's only on iOS 8.3. Apple appears to be adding a lot more features presumably there's going to be a massive CarPlay rollout on vehicles in the next few months. I've only used beta 3 and 4 of iOS 8.3. Once connected I went to Settings -> general -> CarPlay. After connecting to a compatible receiver a list of my cars popped up and it appears as AV Receiver. Next to it is an info button press it, and you get two options. 1 Forget this car 2. Allow CarPlay when locked.

It's only on iOS 8.3. Apple appears to be adding a lot more features presumably there's going to be a massive CarPlay rollout on vehicles in the next few months. I've only used beta 3 and 4 of iOS 8.3. Once connected I went to Settings -> general -> CarPlay. After connecting to a compatible receiver a list of my cars popped up and it appears as AV Receiver. Next to it is an info button press it, and you get two options. 1 Forget this car 2. Allow CarPlay when locked.

Thats cool. I stopped messing with beta's last year. wonder how much longer till they roll that out?

Where's the link to download the file ? I try clicking the link but it's not downloading the file.

I have the 8000

Where's the link to download the file ? I try clicking the link but it's not downloading the file.

first post in this thread

How big is this file ?

This is awesome, I have 8000 and i will try the 8100 software and see how it works. also I have LG G3 and will see how the android auto works

is there file to flash back to the 1.08 8000nex from the 1.03 8100nex firmware?

yea I'll work on it now and get it and the 6000 up

Any chance you can whip one up for the 7000? 

8100 back to 8000 is up.

I'll check to see if the 7100 has a FW out yet, if so Im sure its the same and can try it.

anyone who tries on a device other than the 4000 can you please let me know if you are experiencing audio issues from the phone as well???

6000 to 6100 is up, revert on its way.

all files are up for 4000 6000 and 8000

again, let me know what problems you guys see.

8100 back to 8000 is up.

 

I'll check to see if the 7100 has a FW out yet, if so Im sure its the same and can try it.

 

anyone who tries on a device other than the 4000 can you please let me know if you are experiencing audio issues from the phone as well???

i will test the 6000 for you if you like

sweet...just saw it.  I will test it tonight when I get home.  I am going to assume the same issues.  Also, wondering if there will be an issue since the 6000 has an SD reader and the 6100 does not

Updated my 8000 without problems. I thought I could outsmart the BT problem by replacing the bluetooth folder inside the firmware update with the bluetooth folder (as well as the PJ150BT.VER and PJ150BTL.VER files) from the 1.08 firmware. But no such luck, I'm having the same problems everyone else is having: no BT audio on neither music nor phonecalls. 

I tried un-pairing and re-pairing the phone, as well as resetting the BT settings on the NEX. No dice.

Also, it definitely takes a few seconds longer to boot.

I'm going back down to 1.08 for now and wait to see what king of progress Covert is making with this issue. Happy to test things out any time!

UPDATE: reverting back to 1.08 also worked without any problems