[Android Head-Units] djblaze852002:
My experience, questions, and findings.

I began with a unit long ago when this thread was first started by [MENTION=1915855]KID52[/MENTION]. The unit i received came with firmware 2.6.62 and MCU 4.1.0-1-10-0101. It only had one USB in on the back which was being used by a WiFi dongle. I followed the threads and upgraded the firmware many times up until 2.7.4 and only updated the MCU once to 4.3.7XXXXX. In all the updates the only changes I really noticed were the addition of a new pulldown menu with icons for wifi, cache clean, and brightness plus with the new MCU i saw more options in settings and was finally able to select a delay time on shutdown. I tried using the new swap SD feature but it never really worked properly. The unit lasted 11 months during which I experienced many crashes where the screen would go white and the unit would become unusable until i rebooted. One day I put a music CD in and it crashed my unit. After that it began crashing all the time to the point where it would no longer boot at all. I tried all the resets but it would not boot to anything not even to update the firmware. I tried contacting the ebay seller and they ignored me and would not honor their 1-year warranty. I took the unit apart, checked all connections and still was unable to get it to boot. I also applied some heat to the processor in hopes of resoldering a possible loose connection. NO LUCK! Perhaps the processor is fried? Any suggestions? Otherwise I have a bunch of spare parts for sale if anyone is interested.

I decided to purchase another unit from a different seller. This new unit seems better built. The back is made of solid piece of metal compared to the thin metal used in the first unit. I think it will help with heat dissipation. It also has 2 usb inputs on the back. One labeled wifi and one for 3G. It came with Firmware 2.7.9 and MCU 4.2.15-1-10-2101. The shutdown delay works great and so does the switch SD option. So far things have been going well except for one issue where while using Waze navigation my unit would lose GPS signal. It would really lose it to the point that no other app (GPS TEST) could not see any satellites. I checked all connections and made sure the antenna was unobstructed to no avail. I have recently factory reset the unit and things seem better for now. It was an intermittent problem so wont be surprised if it happens again. Does anyone have experience with such a problem? Is there something else I should try f it comes back? Otherwise I might contact the seller for an RMA.

Lastly my questions are whether I should perform any updates to the firmware or MCU. Are there any features that I would gain by doing so? The only thing I might be interested in is getting an offline GPS app to work. My understanding is that I would need to update to 2.8.8 to get TOMTOM to work. Is this correct? I am hesitant to make any changes to either because of my experience with my last unit where things would sometimes not work, frequent crashes and a dead unit in the end. I would only do so if it would yield big benefits.

I am also somewhat interested in getting bluetooth OBDII to work or getting the Dash app to work with USB OBDII. I really would like to use the Dash app because it provides so much intuitive information. Any advice would be greatly appreciated. Sorry for the long post.