MOD TRANSLATIONFYI.... I contacted ruancheng Official Store about a software update today (3/22/2023) and they replied with....
Dear friends, there will be updated software next month
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Ez a verzió jó nekem?Hello, van firmware frissítés a képen látható fejegységhez? Köszönöm a válaszokat.
What device is this update for? K4811_NWD or K4811_JYT? And what is the new software date?Me han respondido, me han enviado el recovery original de la firma que ocupa 3.7gb y se instala mediante el usb de 4 pines. La recuperación ha sido exitosa pero la radio no es del todo estable. A veces se bloquea. Os dejo el enlace de la actualización.
K4811_NWDWhat device is this update for? K4811_NWD or K4811_JYT? And what is the new software date?
Same way you enter on any android phoneHow to enter the developer menu on K4811? I know the code is 345543, but I don't know how to enter.
Thank you.Same way you enter on any android phone
Hi. Maybe you should go to the official website of the manufacturer and look there for the necessary information?Did you ever find more info on your K4811? I have a K4811 and the only thing I’ve figured out so far is the Factory Settings password is 1617 but I don’t know the developer mode password or even how to change main screen.
I had to replace the canbus box in my head unit because it wasn't working properly. The previous software is also used for the new canbus box. In such a case, should the first canbus software be deleted? If so, how and where can I find it? The two canbus boxes are not from the same manufacturer, so they are different.
is anyone having issues with WIFI performance?
When I set My Mobile Phone as Access Point (AP-for sharing internet connection) the connection is very very slow... this case prevent Waze, Spotify etc to connect.
i have tried to connect to my WiFi Home connection and same issue.
Been there, done that. Most of these are AliExpress items with little to no support from the "reseller".Hi. Maybe you should go to the official website of the manufacturer and look there for the necessary information?
Curious since you have the unit open can you check the antenna connections?, some of the videos I watched show that these units antennas are not solder correctly to the chip, my unit suffers from poor antenna reception even with the supplied antennas attached, my hotspot box can be right next to the unit and not receive 5 WiFi bars, and the 4g antenna forget about that, unless I’m in the city literally in the vicinity of a cell tower. I won’t get any connection from T-Mobile. I’m not good with disassembling electronics. Otherwise I would attempt to disassemble it myself, I wouldn’t even know where to start.So I just got the k4811 and opened it up because I usually hardware mod these Chinese android headunits. They are advertised with a tda7851 or tda7850 amp that's 75w x 4 2ohm or 50w x 4 4ohm. Mine actually came with a tcb503hq which is one of the newest car audio amps in the 25 pin package. The tda7850 only does those maximum wattage ratings with 19v but cars give 14.4v so they actually only give around 30w 4ohm and the units come with a 6600uf capacitor when the tda7850/7851 needs a 10000uf 25v capacitor a well. The tcb503hq gives basically full 50w x4 4ohm with 14.4v, it doesn't have to have the 10000uf capacitor and it has noise suppression built in to prevent the horrible hum or whining you here when using an amp with these. So I'd suggest checking what amp is in your unit and upgrading it to the tcb503hq for $5 if yours has anything else.
can i have a link to this update please?K4811_NWD
You can see it on the download page.
View attachment 5877305
Did you ever find more info on your K4811? I have a K4811 and the only thing I’ve figured out so far is the Factory Settings password is 1617 but I don’t know the developer mode password or even how to change main screen.
A couple of years ago I bought the full version of Malaysk's firmware for a PX30/RK3326 Android 9. works great.
I have new head units now, the Phoenix SC7862 Android 10 and a Ezonetronics K4811 Android 11
I searched the forums for these but it's quite empty. do these translate to something I can search for? like MTCD/MTXX ?
Or is there a thread about modded firmware for them somewhere?
In your last line, do you mean 8581a instead of 5851a?
Does the freeware version of DeviceInfoHW report the desired info? My AHU is installed in a vehicle that is not under my control so I would prefer not to have to arrange to purchase an app with my account. Maybe AIDA64 would work too.
Here you are. Enjoy!I wonder if @m00n61 wouldn't mind trying to extract that fan app so I can try it on my device.
It’ll be a few weeks before I have access to the unit again to try this. Many thanks for your efforts!Here you are. Enjoy!