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Upgrading NEX4000 to NEX4100 - Work in Progress

By Covert_Death · Mar 24, 2015in NEX Series💬 624 posts👁️ 179,956 views
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Posted Apr 07, 2015 · 04:01 UTC#201

Couldn't agree more.  I was very excited for the promise of CarPlay, and in the end the only feature that I actually use that wasn't in my factory radio is the HD Radio.  I don't use CarPlay anymore in the least bit.  It was a colossal disappointment.  Never again, Pioneer.

 

I love my 8000. CarPlay works wonderfully. SXM and HD Radio both work great. UI is 100x better than the stock Toyota Nav that it replaced. My only complaint that I've ever had with it is that the audio "blanks out" when you adjust the EQ. And maybe the crappy voice quality on the TTS, but I use CarPlay for NAV more than the built-in.

Posted Apr 07, 2015 · 04:49 UTC#202

Also if anyone has had any success with hooking up the 4000 to a rooted note 3 and used it with google chromecast without it being extremely zoomed in the top left of the phone mirroring I would appreciate the advice! Thanks

 

That's likely a Chromecast issue. There has been a thread on the Chromecast support forums for months with many different people having the same problem with many different screens. I returned my Chromecast for that very reason. I heard though that the latest Chromecast firmware might help. Have you updated to the newest version?

Posted Apr 07, 2015 · 11:34 UTC#203

Subscribed, this sounds interesting :)

Posted Apr 07, 2015 · 15:32 UTC#204

so I spent the weekend playing around with the open source files pioneer uploads and I just don't know enough about android to really get it yet. Anyone here know anything about compiling android code or work with AOSP? I posted on XDA a while back but didn't hear anything.

Posted Apr 07, 2015 · 22:48 UTC#205

[deleted post]

Edited Aug 05, 2015 by whatisbypass
Posted Apr 08, 2015 · 20:08 UTC#207

I'm an NEX4000 user, and just had a quick question. I understand BT audio does not work, if all you ever use is Carplay, does everything work normally there? And does Carplay work any faster/better than it does on 1.08 on a 4000?

Posted Apr 08, 2015 · 21:57 UTC#208

I'm an NEX4000 user, and just had a quick question. I understand BT audio does not work, if all you ever use is Carplay, does everything work normally there? And does Carplay work any faster/better than it does on 1.08 on a 4000?

 

Starting at post #26, you'll find that people couldn't get the CarPlay audio to work either. I don't know if that goes over BT or not, but it doesn't presently seem to work.

Edited Apr 08, 2015 by EditorDZ
Posted Apr 08, 2015 · 22:28 UTC#209

CarPlay audio does not go through Bluetooth.

Posted Apr 08, 2015 · 23:16 UTC#210

CarPlay audio does not go through Bluetooth.

 

Yep I know - I was just making sure everything related to Carplay works fine when doing this, and whether or not there is any improvement to Carplay performance.

Edited Apr 08, 2015 by Zorn
Posted Apr 09, 2015 · 04:00 UTC#211

Ill be happy to report that I preformed the latest update to my chromecast and it works great with screen resolution! well not perfect. It has a slight hesitation for touch controls and when u turn it a certain way in landscape mode it its the complete opposite for touch controls yet again. But hey its wireless and working somewhat properly!

Posted Apr 09, 2015 · 15:14 UTC#212

Yep I know - I was just making sure everything related to Carplay works fine when doing this, and whether or not there is any improvement to Carplay performance.

Audio from the phone does not work in CarPlay with this hack right now.

Posted Apr 10, 2015 · 00:22 UTC#213

Hey guys update time,

 

I just bought a 4100NEX to upgrade to but while I have both I'll be comparing the differences physically to see what is happening here.

 

So far I can boot to 1.08 (4000) on my 4100 and experience similar problems as the other way around so I really am starting to think that they changed some of the hardware and didn't make it clear.

 

The big difference is the screen. not so much the resolution but the presentation. on the 4100 the screen is actually glass like, not that "film" of plastic on the 4000. Its very dense and gloss like in finish not matte. This is the first thing I noticed right off the bat. 

 

I'll be looking into swapping the internal SD Card out to see what happens when I do that (pulling the 4100 SD card and using it in the 4000). But I think I will have to find the devices password to get this to work so we shall so how that goes.

Posted Apr 10, 2015 · 00:30 UTC#214

Can u swap the screens and test?

Posted Apr 10, 2015 · 00:38 UTC#215

Thanks Covert for continuing your efforts, especially now that you have both units!

Posted Apr 10, 2015 · 01:06 UTC#216

Hey guys update time,

 

I just bought a 4100NEX to upgrade to but while I have both I'll be comparing the differences physically to see what is happening here.

 

So far I can boot to 1.08 (4000) on my 4100 and experience similar problems as the other way around so I really am starting to think that they changed some of the hardware and didn't make it clear.

 

The big difference is the screen. not so much the resolution but the presentation. on the 4100 the screen is actually glass like, not that "film" of plastic on the 4000. Its very dense and gloss like in finish not matte. This is the first thing I noticed right off the bat. 

 

I'll be looking into swapping the internal SD Card out to see what happens when I do that (pulling the 4100 SD card and using it in the 4000). But I think I will have to find the devices password to get this to work so we shall so how that goes.

 

 

Awesome. Thanks for keeping the hope alive

Posted Apr 10, 2015 · 15:31 UTC#217

Can u swap the screens and test?

Screen swapping won't work, I know this because thats the safety feature of the devices. you take the head unit off when leaving your vehicle and if someone steals your radio, its useless, they can't just buy another and use that, it has to be paired.

Posted Apr 11, 2015 · 14:01 UTC#218

I don't have any skin in the game, I have neither of the HUs but I've done a bunch of reversing on Pioneer's firmware and hardware/SD hacking on my unit APPRADIO 4 which has a common software and hardware base.

 

What's the goal? What do people actually want from the x100 series?

 

I took a really quick look at the differences between the 4000 / 4100 and it looks like the hardware is super similar, with a few differences:

 

CPU Unit

 

* New flash rom - this could mean the BSP has changed (and the SD passwords are different) but can't tell until inspecting the kernel or dumping the flash. The CPU hasn't changed so I'd be surprised if there were significant differences.

 

Interface Unit

 

* HD/DAB tuner change

* System uCom change

 

Monitor Unit

 

* New multi touch panel

 

DVD Unit

 

* a Mirrorlink chip is gone (or moved)

 

 

What's the same:

 

* CPU

* LCD + backlight

* Bascially everything (hardware version KM500B vs KM506B)

 

 

When updating things can be done independantly:

* Programs

* Bootloader

* Boot

* Recovery Partition

* Platform

* Opening Data

* System uCom firmware

* Bluetooth firmware

* GPS firmware

 

The code for x100 is PJ150 and x000 is PJ140.

Once updated, unless some core files are manipulated the unit will assume the new hardware's identity.

 

Its possible to craft an update that mixes and matches units between updates - or leave some out. It's also possible to redo a whole partition.

 

What this doesn't take into account is sofware and driver versions and how the harware actually talks to each other. e.g. there might many more software than hardware changes that could lead to significant interop issues. I haven't inspected the update to see (an update probbaly isn't detailed enough)

 

At this stage I don't see any reason to think that the tty assignments have changed on the UART interfaces though.

 

If I was starting on this from scratch with a x000 unit I think a good first step would be:

 

* back up internal SD, just in case

* make the minumum manipulations to the update to make it apply (i.e change no data just names and headers)

* once updated successfully boot into the service test mode with TESTMODE.KEY and run the hardware diagnostics - these cover basically everything, touchscreen, fans, bluetooth, monitor so should show up any issues easily.

 

I wouldn't force bluetooth, gps or ucom updates at this point - don't want force the HU to brick those components with an incompatible firmware. 

 

If I had a x100 unit I'd dump the SD card and take a gander at that. (swapping unlocked sd cards would be an interesting experiment, as the firmwares wouldnt be touched just potential driver issues - if it worked it'd be funny to think you could just order the SD spare part from pioneer from a newer model to "upgrade")

 

Posted Apr 12, 2015 · 17:13 UTC#219

Thanks for the mods everyone. I cannot get the links to work for the 4000/4100NEX in the first post. Any ideas?

Posted Apr 15, 2015 · 16:33 UTC#220

Covert_Death.....Awesome dedication towards this topic bro.  I was sooooo pissed when Pioneer had to release a new unit just to update Android Auto.  I bought my 4000NEX during last September just in hopes that Android Auto will be made available as a FW update.  Like everybody else here, I am also ranting about less than 1 year old unit purchase which now does not meet my expectations.  

Posted Apr 17, 2015 · 17:25 UTC#221

Covert_Death.....Awesome dedication towards this topic bro.  I was sooooo pissed when Pioneer had to release a new unit just to update Android Auto.  I bought my 4000NEX during last September just in hopes that Android Auto will be made available as a FW update.  Like everybody else here, I am also ranting about less than 1 year old unit purchase which now does not meet my expectations.  

sorry for the delay, it's been a buys week at work. I found the SD card inside the unit but as I guessed it's PW protected and I don't know how to extrapolate the PW from the new unit / old unit to unlock it. I don't even know if this would resolve the issue but at least it would be 100% 4100 SW on a 4000 instead of a partial upgrade like the FW seems to be. 

 

I need to be able to sell one of my units so I hesitate in destroying them any further haha.

 

Also I have had no luck getting anyone interested on XDA...

Posted Apr 17, 2015 · 22:04 UTC#222

sorry for the delay, it's been a buys week at work. I found the SD card inside the unit but as I guessed it's PW protected and I don't know how to extrapolate the PW from the new unit / old unit to unlock it. I don't even know if this would resolve the issue but at least it would be 100% 4100 SW on a 4000 instead of a partial upgrade like the FW seems to be. 

 

I need to be able to sell one of my units so I hesitate in destroying them any further haha.

 

Also I have had no luck getting anyone interested on XDA...

https://fail0verflow.com/blog/2014/enhancing-the-avic-5000nex.html

 

This guy was able to obtain the password

Posted Apr 17, 2015 · 23:13 UTC#223

On a different note, why on 4000 to 4100 is PJ150OPN.PRG named 150 and not 140 like on the stock firmware?

Posted Apr 19, 2015 · 04:27 UTC#224

I take it there are different passwords on the 4000 series and the 4100 series?

Posted Apr 20, 2015 · 23:40 UTC#225

Pioneer right now mediocrity in a sea of garbage. The head unit manufacturers are not innovating. Frankly I'm glad for CarPlay and android auto because my radio will receive updates and new functionality over time from apple instead of from pioneer.

 

In the 8.3 beta the album art looks better and once again works with third party apps, the phone no longer needs to be unlocked to use CarPlay,(you just tell the phone to trust this head unit and it auto launches after that) the maps now does this thing where if you don't touch it it hides buttons automatically to dedicate more of the screen to the map, Siri has a new button to let me call the person to reply to a text and I have no doubt in the future there will be a button to send audio messages for iMessage conversations.

 

When the interface comes from my phone I don't have to care about the pioneer one. I already have an interface from apple.

There may not be a payoff. For most new cars, the infotainment is so integrated with the rest of the car both physically and electronically that the market for aftermarket audio may be shrinking.

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