[Android Head-Units] djborsi:
Hi,

here my experience with Junsun V1 Pro with MTK 8259 (detailed spec. of device in below screenshots).

View attachment 5194495 View attachment 5194497

My car is:

Mazda 3, produced 2010 (type BL).

1. The radio station memory is cleared after rebooting the device (i.e. after setting differen CAN Type), so I must always to set the radio channels from beginnig on.

>> this I can handle since I don't have to play with CAN Type setting all the time.

2. I cannot pin any widget, or any shortcut of an app the to any of the home screens! The system hangs up when I trying to pin something.

>> this is to solve by different launcher. I have tried with Nova launcher and took radio, bleutooth etc. app from “for_launchers” zip file. Was working fine.

3. During using a navigation app the music from radio and sounds from navi are not mixed. Radio is playing and when navi sound comes, then radio is reduced and overplayed, I couldn't find option to change it.

>> in the end nothing special, it is a matter of expectation and taste.

4. The reverse camera (gift from Junsun) is not working afer installation according to diagrams.

>> this stays unsolved...

5. After switching car gear to reverse any backview as Warning Line or as Assistance Line are not working, not appearing!

>> is unsolved,

maybe connected with issue no 4. (system doesn't detect camera, so also deosn't activate any backview).

6. After switching car gear to reverse the sound level reduction deosn't work!

>> is unsolved,

maybe also connected with issue no 4. (system doesn't detect camera, also deosn't activate any backview, so in the end no sound level change).

7. I did Reset to Factory Settings (through android interface) to correct the problem no.2 (see description above). It helped for a moment, so after some time (~15 minutes) the issue came back, so still I cannot pin any widget or shortcut to any home screen.

8. I cannot find any option to make Screen-Lock.

>> probably dedicated app would help, but I haven't tried.

9. The CAN info are not working with my car, so I cannot see any info about open doors, etc.

>> I was using CAN Type 145, as adviced by seller, but still was not working.

All of above issue I was trying to solve with seller via messages (my english is not perfect, but their ... terrible).

After upgrading the device to a new FW (provided by seller), after few days of discussion, I have decided to return the radio back. I did all according to agreement with seller and via aliexpress system and it worked fine. I got money back (211€) , all good.

The device, beside above described issues, worked really really well, fast and smoothly.

The GPS was catch fast and 4G with sim card slot extension worked really amazing (direct internet access as well as direct phone calls possible!).

The radio reception and the sound quality, also very good!

It is a pity, because the device looks like has a big potential, but the current FW is not perfect, so causing small, but many annoying problems.

Not sure about camera issue (no.: 4+5+6), if it is connected with FW or rather with CAN decoder...

I would consider to buy it again, but first I will wait for a better FW/OS/ROM, so I am looking forward for any news about it!

I hope the info will help some of you.

Greetings!