GPS not getting a lock? - MTCD Android Head Units General

Had a problem earlier where the head unit couldn't get a GPS lock. Occasionally I need to close and re-open the satnav application to get a position, however today it just didn't work. After a few resets and it still not working I opened up the GPS Info app and it could see satellites, however it was a bit erratic. I thought it would settle down, however it didn't. I took the video of it but I can't upload it here as video's don't seem to be allowed?
Anyway it just said 'Invalid', the date, time and speed all showed 0 and the number of satellites kept flipping from 1 to 12 with varying levels of signals (23 through 43).
I had to remove the glovebox yesterday as my wife managed to rip out my USB charging socket when trying to connect her phone (AND spilt a can of Pepsi, and she wonders why I don't like her using my car...). The GPS receiver is installed above the glovebox under the dash. Its possible I damaged the cable on re-installing the glovebox but I was pretty careful.
I'll take it apart tomorrow and have a look. Is this likely the cause or could it be something else? It seems odd that it sees a lot of satellites if the GPS receiver is not connected (i.e. cable broken).
Andy

Is it an MTCD?

marchnz said:
Is it an MTCD?
Click to expand...
Click to collapse
Its a PX5 MTCD (says MTCE with MCU update). Its a GS (Xtrons) unit.
I took the head unit out this morning and tried a spare GSP antenna and it worked straight away.
I then took the glovebox out, removed the original GPS antenna, put the spare in there and re-routed the cable so it hopefully won't get crushed if I remove the glovebox again.
All working now. The GPS cable is quite flimsy. I can see on the original one where it is slightly flattened so it must have been this.
Andy

Related

External GPS Antenna

My Artemis did not come with an external GPS antenna. I've been looking online, but I can't find any sort of specification as to what kind of connector this external GPA antenna jack uses. What kind of antenna should I buy?
The Artemis has a built-in Sirf III GPS antena which work even with cars having a reflective windshield.
Yes, thank you. I would still like an external antenna just in case.
in the Premium version, I bought, there was an external GPS-antenna included.
It has a very long cable.
But sorry, I can't tell you, what kind of connector it has.
If you really think you need an external aerial for the GPS unit in your device (which I doubt to be honest) have a search for the part number 36H00352-00M it transpires that the same aerial was supplied for the I-Mate PDA-n, you can purchase one from http://www.expansys.com/p.aspx?i=129590 (at least I can improve the reception on my PDA-n now I know that! and I have found a use for the external GPS aerial that was supplied with my Arte) - Mike
... there is one also available here.
PavelR.
I was thinking of this as well.
It may be necessary to get an ext antenae, because it takes a about 1 - 5 minutes sometimes for the handset to pick up (or connect as it shows in grey) a GPS signal
AD10 said:
I was thinking of this as well.
It may be necessary to get an ext antenae, because it takes a about 1 - 5 minutes sometimes for the handset to pick up (or connect as it shows in grey) a GPS signal
Click to expand...
Click to collapse
Try the new update of Navigator 6 on the TomTom site before buying. Maybe there is some goodies there
I upgraded to the 6.03 and it still takes a very long time for it to get a valid signal.
I inquired about HTC P3300 external antenna GPS signal booster but they are out of stock and have no ETA when they are going to get them in.
Anybody have a source on where to get the above product from?
Ext Aerial
The HTC 3300 uses the same external aerial as i-Mate PDA-n. I got mine through Expansys. It really boosts the signal, but makes no real difference to TTFF. It is much better in the concrete jungle though.
How much from Expansys? I'm in melb too so AUD is no problem for me. My last city trip saw signal drop out nicely!
good thing i was testing and knew where i was going!
jdl1306 said:
How much from Expansys? I'm in melb too so AUD is no problem for me. My last city trip saw signal drop out nicely!
good thing i was testing and knew where i was going!
Click to expand...
Click to collapse
WOW - Lucky you.
Imagine nto knowing your way.
@Camstech - How long does it take before you get a valid GPS signal with the ext antenna connected ?
Rgds
O2 Orbit Aerial
Hi. Having used an Exec running the same version of CoPilot, but with a Holux GPSlim 236 BT, the Orbit is definitely slower to TTFF, and sometimes gets a little 'lost'. For a few seconds, it will jump to a street maybe a 100m away, then come back, and recalculate the route again. I feel that an aerial might just improve matters a bit. I have read the previous posts, and am still finding great difficulty in finding an external aerial to fit the Orbit. O2 have no information at all, and when I've contacted the suppliers listed above, they have all said that they don't carry aerials that fit. One suggested that they suspect that the connector for the Orbit is now actually different from the original Artemis - although that seems rather unlikely. Have now tried MMCX, MCX,and lastly SSMB - none of which fit. Any ideas? Thanks in advance.
Hiznibz54 said:
Have now tried MMCX, MCX,and lastly SSMB - none of which fit
Click to expand...
Click to collapse
According to http://www.gpsforless.co.uk/product_details.php?id=5887 it's a mini-MMCX.
Aerial
Yes, I know, but when I rang them today, they were the ones who said that it wasn't the MMCX, that the O2 may be now different from the Artemis, and they had been asked quite a few times for a suitable aerial, but they definitely didn't have anything that fitted, nor did they know what it was.. The plot thickens.. The connector looks exactly the same as in the phone socket beside it, but a few phone companies I've shown it to don't know either.
I just picked up a BT-359W Bluetooth GPS Receiver for 85- Euro new.
The only difference between the BT-359W & BT-359S is the design on the top.
I made sure the battery was 100% charged before I turned it on (old habits die hard) and after spending 5-10 minutes trying to configure the Bluetooth on the HTC P3300 - I am a newbie when it comes to this new technology - it was able to get 3 satellites while I was in the house right away.
The thing is very small also - 82 mm x 41 mm x 13.4 mm (Inches: 3.22" x 1.61" x 0.52").
I would have to say that this is a great alternative to a wired antenna.
Here is a review I read before making my final decision: GlobalSat BT-359 Bluetooth GPS receiver review
I tried my BT Holux GPSlim 236, which I'd previously used with my XDA Exec, with the Orbit. It paired up automatically in about 20 secs, and the reception, and TTFF is MUCH better. Without 236, in my office, I was struggling to get more than 4 satellites, and a fix was at least 5 mins. Admittedly this was deliberately in a poor reception area. Swapping to the 236, by the time it had registered with the Orbit - as I said, only about 20 seconds - when I checked satellite status, it had already found 11, and had a 3D fix!! I had hoped for the simple life, with just the Orbit in an active car cradle, but I think if I can't get a simple plug-in aerial, it'll have to be back to the BT 236, and its charger.

Holox BT-541 Bluetooth GPS Review

First post, so go easy folks...
The Holox BT-541 Bluetooth GPS receiver is waiting for me to collect from the Post Office in the morning. I plan to test it out and then post my findings.
First off, it was £25 including delivery from ebay and I am fully aware that the makers have ripped off the "Holux" brand name. Not particularly bothered by that and am more interested in testing the little bugger out.
I don't however, have any other GPS system (other than Nokia N95) to compare it to, so do you guys have any particular information requests? I will do my best to answer your queries.
I'll be using it with Memory Map PDA software on HTC Universal in the UK using OS 1-25,000 maps. I'll probably try it out in conjunction with Nokia Maps also.
I've got a Holox, very nice little thing! Picks up GPS signals very quickly (under 30 seconds i think it was ... i didnt count too well...), and my HTC Touch picks it up via BT almost instantly!
Hmm.
First impressions not good. The instruction manual is delivered on a cd which none of my three drives will read.
I can't get any further than pairing the device with my Universal. After that I just get "Could not open COM port" errors. Any clues on how to set it up?
OK.
The problems with connecting were caused by the stupid GPS Connection program in WM6. The unit connected first time with my Nokia and gave an indoor accuracy of 18m. Cold start - 21s
Got it working on universal like this:
Device Paired
Select Serial Port service
Create COM port (I could only get it working with COM8)
In the External GPS Settings program select Hardware Com port as COM8
Baud Rate 38400
Select Software Com port as NONE
Deselect "Manage GPS Automatically" in the Access tab.
Now it works very well and the little blob on my Memory Map screen is able to follow me everywhere I go. There doesn't seem to be any lag at all and it happily follows me around while driving.
I took the Holox unit into the forest today for a workout. It's a 50 year old Scots/Corsican pine forest.
Cold start in 45s under the tree cover. I walked 2km and then drove a further 5km in a Land Rover. The GPS only lost its bearings once, for a distance of about 50m, putting me about 100m to the south of where I actually was. Not bad for being under constant tree cover.
The unit uses the same battery as my Nokia N70 and therefore getting a replacement battery when it dies should not be a problem. It'd be nice if it had a hole to attach a lanyard, but I guess something could be improvised.
Just wanted to say thanks for the review, I've really been wanting to get one of these but was a little put-off by the website, made me doubt it would actually work. Anyway based on this I think i will get one, thanks!
How is it charged? USB or normal plug
Got two of these off ebay. (1 Duplicate sent by mistake).
Great little device.
Flown a Cessna 172 with it using XDA2i , Memory-map navigator and Pocket FMS http://www.pocketfms.com .
Driven with it using Tom-Tom and HP rx3715, HP Hx2750, XDA2i and Palm Tungsten T3.
No problems pairing. Manual covers basic setting up, and LED indicators etc.
Mains charger supplied, but can be charged using standard USB A to Mini B from a USB port on PC, or via a USB adapter from a Car 12v source.
rontorbay said:
Got two of these off ebay. (1 Duplicate sent by mistake).
Great little device.
Flown a Cessna 172 with it using XDA2i , Memory-map navigator and Pocket FMS http://www.pocketfms.com .
Driven with it using Tom-Tom and HP rx3715, HP Hx2750, XDA2i and Palm Tungsten T3.
No problems pairing. Manual covers basic setting up, and LED indicators etc.
Mains charger supplied, but can be charged using standard USB A to Mini B from a USB port on PC, or via a USB adapter from a Car 12v source.
Click to expand...
Click to collapse
I was thinking of buying one of these, but I hate having wires and chargers and stuff around my car - does this thing work while plugged into a charger? And once it's over-charged, do you need to disconnect it before it will start charging again etc? I'd like to get one and leave it permanently connected to a power supply, and just park it on my rear parcel-shelf or something?
thecellartroll said:
OK.
The problems with connecting were caused by the stupid GPS Connection program in WM6. The unit connected first time with my Nokia and gave an indoor accuracy of 18m. Cold start - 21s
Got it working on universal like this:
Device Paired
Select Serial Port service
Create COM port (I could only get it working with COM8)
In the External GPS Settings program select Hardware Com port as COM8
Baud Rate 38400
Select Software Com port as NONE
Deselect "Manage GPS Automatically" in the Access tab.
Now it works very well and the little blob on my Memory Map screen is able to follow me everywhere I go. There doesn't seem to be any lag at all and it happily follows me around while driving.
Click to expand...
Click to collapse
Hmmmm perfect. I've tried for two days to get a motorola t815/805 working, installing motonav (still not working) and I couldn't get any help at all through the motorola site or software. Your com port settings worked perfect, it finally paired up and google maps mobile found it.
I may not even try to get motonav workng, I'm so frustrated with that.

No power to the antenna GPS

A greeting, a good 2016 and thanks to all for their valuable contribution in this forum. Forgive me because I do not speak English. For about a month I bought a Eonon 5165F, specific for BMW.
Mod. S07
MTCB KLD1 v2.55
Android 4.4.4.
Build rk3188
ARMv7 CPU 1.6 GHz (x4)
memory 1024Mb
The problem is that only detects a satellite, both with GPS antenna which is not connected. I measured the voltage on the jack (on the back of the radio) where you screw the GPS antenna, detecting 0 volts. Is there a solution? Thanks in advance and excuse me if I'm wrong section.
I'm not sure I understand your question.
Let me tell you my experience and hope that it answers what your actual question is.
When using navigation software, unless I had a route entered and running, the GPS signal would be lost if I ever exited the navigation program. Unlike when I actually had the program providing me directions; I would still be provided oral directions even if I was on the "radio" screen.
I believe that there is no power to the GPS antenna unless there is a program running that requires it.
First a big thank you for your prompt response. I did not understand the answer, because of google translator. I try to explain better, the problem is that my car radio is only one satellite is with navigation software, both in function gps monitor. This occurs with both GPS antenna connected, both with GPS antenna disconnected. An operator Eonon, with whom they are in contact and which still do not receive information, suggested I check if the voltage on the antenna jack on the GPS was 3.3 volts. So I infer that having measured 0 volts, no current then the antenna does not work and accordingly the car radio is only one satellite.
Google Translate is not helpful. I suggest posting in your own language as well so that someone else might be able to help.
Check the GPS antenna voltage while a navigation program is running.
la max said:
First a big thank you for your prompt response. I did not understand the answer, because of google translator. I try to explain better, the problem is that my car radio is only one satellite is with navigation software, both in function gps monitor. This occurs with both GPS antenna connected, both with GPS antenna disconnected. An operator Eonon, with whom they are in contact and which still do not receive information, suggested I check if the voltage on the antenna jack on the GPS was 3.3 volts. So I infer that having measured 0 volts, no current then the antenna does not work and accordingly the car radio is only one satellite.
Click to expand...
Click to collapse
To be sure you're measuring DC Volt? Eonon is correct you should have around 3,3 volt DC. If not, your HU is probably faulty. If Eonon allows you, open it up and check
if the GPS antenna wire is connected. You can also beep the antenna wire from the socket to the MB connection.
The cable is connected because the first few days the GPS working. I noticed the problem after I plugged a +12 volts from the car battery to avoid losing time and the memories of the radio stations. I did a restore to factory state but the problem remained. I do not know if you can be of help, but after you restore disappeared applying air pin pro. Thank you.
la max said:
The cable is connected because the first few days the GPS working. I noticed the problem after I plugged a +12 volts from the car battery to avoid losing time and the memories of the radio stations. I did a restore to factory state but the problem remained. I do not know if you can be of help, but after you restore disappeared applying air pin pro. Thank you.
Click to expand...
Click to collapse
Well, you didn't tell it has been working before you did something. Why don't you load the factory firmware
which might fix your problem. Ask the manufacturer for the correct firmware and instruction how to reload the firmware.
You might also go into recover and clear all various cache, like Dalvik and so on. Ask the manufacturer for information.
I hope that the manufacturer decides to fully answer. Then I will try with different solutions. I will also try to remove the cache with Dalvik, but first, the root. I have the impression that the problem is related to some electronic component burned.
la max said:
I hope that the manufacturer decides to fully answer. Then I will try with different solutions. I will also try to remove the cache with Dalvik, but first, the root. I have the impression that the problem is related to some electronic component burned.
Click to expand...
Click to collapse
If you only installed software then it's unlikely a hardware problem.
la max said:
The cable is connected because the first few days the GPS working. I noticed the problem after I plugged a +12 volts from the car battery to avoid losing time and the memories of the radio stations. I did a restore to factory state but the problem remained. I do not know if you can be of help, but after you restore disappeared applying air pin pro. Thank you.
Click to expand...
Click to collapse
You can check the “ACC” and “B+” wire are correctly connected to your car connectors.
If opposite, exchange the “ACC” and the “B+” wire.
---------- Post added at 07:32 AM ---------- Previous post was at 06:41 AM ----------
la max said:
A greeting, a good 2016 and thanks to all for their valuable contribution in this forum. Forgive me because I do not speak English. For about a month I bought a Eonon 5165F, specific for BMW.
Mod. S07
MTCB KLD1 v2.55
Android 4.4.4.
Build rk3188
ARMv7 CPU 1.6 GHz (x4)
memory 1024Mb
The problem is that only detects a satellite, both with GPS antenna which is not connected. I measured the voltage on the jack (on the back of the radio) where you screw the GPS antenna, detecting 0 volts. Is there a solution? Thanks in advance and excuse me if I'm wrong section.
Click to expand...
Click to collapse
If the GPS function cannot work normally, you can check
1. if the GPS antenna is connected well (check manual)
2. if the GPS antenna is broken (you can try another GPS antenna to test)
3. if there is something wrong in the inside of your head unit (you can ask the seller for help)
4. the GPS software (try another navigation, such as google or waze)
Hope can help you!
Thanks again for all your answers and your advice. I've already checked if the antenna is connected properly. I also tried another GPS antenna. The result does not change. I tried google maps but can not find my position. I do not think they are wrong connections, because the attack is specific to my car. Initially, the GPS worked with these connections. I did not understand what is the thread "B +". I have not updated because Eonon still unresponsive. I wait a few days later I will open the radio and ask you what to check specifically. I thought also to upgrade MCU, what do you think?You could solve? Thanks XDA forum
la max said:
Thanks again for all your answers and your advice. I've already checked if the antenna is connected properly. I also tried another GPS antenna. The result does not change. I tried google maps but can not find my position. I do not think they are wrong connections, because the attack is specific to my car. Initially, the GPS worked with these connections. I did not understand what is the thread "B +". I have not updated because Eonon still unresponsive. I wait a few days later I will open the radio and ask you what to check specifically. I thought also to upgrade MCU, what do you think?You could solve? Thanks XDA forum
Click to expand...
Click to collapse
Don't start to mess around with things that has no connection to the GPS. Have you answered my question concerning when did it fail? I've already explained in this thread what you should do if you open it up. ACC and B+ are the two power connections. B+ is battery power always on/yellow cable . Acc is on when your starter switch/key is Acc position/red cable. No harm done if you switch the two yellow/red. The only thing you lose is radio settings and other memory items as you already experienced.
When did it fail? When you did something mechanical/electronics/software.
welcome back satellites
Hello I have great news, I solved my problem. Tired of waiting for news from Eonon today I decided to open my car radio. After various voltage measurements have found that the base of the GPS coaxial cable, on the motherboard, there were 3.26 volts (but not on SMA female jack on the back of the car as I had already said in previous posts). Moving the cable was impossible to have tension. After careful consideration of the cable I noticed that she had been made a bad weld on SMA female jack, because the cable was not connected and was only held by shrink tubing. I went to an electronics store and took a piece of coaxial cable with SMA female connector already soldered. I proceeded to solder on the motherboard and everything has fallen into place. I thank all the people who helped me and especially the user halloj. You are strong XDA!
Can you tell me about the fix? I have the same problem on erisin unit for e46, sometimes it works i have signal, sometimes no signal... And it stay with no signal untill the car is off for 2-3 hours, from where shoud i start?
la max said:
Hello I have great news, I solved my problem. Tired of waiting for news from Eonon today I decided to open my car radio. After various voltage measurements have found that the base of the GPS coaxial cable, on the motherboard, there were 3.26 volts (but not on SMA female jack on the back of the car as I had already said in previous posts). Moving the cable was impossible to have tension. After careful consideration of the cable I noticed that she had been made a bad weld on SMA female jack, because the cable was not connected and was only held by shrink tubing. I went to an electronics store and took a piece of coaxial cable with SMA female connector already soldered. I proceeded to solder on the motherboard and everything has fallen into place. I thank all the people who helped me and especially the user halloj. You are strong XDA!
Click to expand...
Click to collapse
Hi there!
Did you perhaps take a picture of your inside work? can you share it here please?
Thank you!

Weird rear camera issue

Hi,
I have an Android 5.1 .1 unit with RK3188 chip 1G RAM. All works well but there is a weird rear camera issue. When I start the car and switch to backup gear, the rear camera always works normally, however, after driving 10 minutes or longer the camera does not work anymore and the screen shows an exclamation mark when gear switched to backup. This happens approximately 80% times, while the other 20% times the camera would work OK even after long driving time.
The camera is wired normally with power connected to backup light. Backup light power is also connect to the head unit as trigger for rear camera video.
I was initially thinking this could be a bad camera issue, but the problem persists after installation of a new camera. So it must be the unit.
Has anyone else experienced similar problem? Any help to fix the issue is much appreciated.
yves31 said:
Hi,
I have an Android 5.1 .1 unit with RK3188 chip 1G RAM. All works well but there is a weird rear camera issue. When I start the car and switch to backup gear, the rear camera always works normally, however, after driving 10 minutes or longer the camera does not work anymore and the screen shows an exclamation mark when gear switched to backup. This happens approximately 80% times, while the other 20% times the camera would work OK even after long driving time.
The camera is wired normally with power connected to backup light. Backup light power is also connect to the head unit as trigger for rear camera video.
I was initially thinking this could be a bad camera issue, but the problem persists after installation of a new camera. So it must be the unit.
Has anyone else experienced similar problem? Any help to fix the issue is much appreciated.
Click to expand...
Click to collapse
modern car? possibly smart power management and therefore not sending enough power to the camera as it detects the reverse light not needing that much power. my vw golf does it and my friends bmw 1 series did, if its wired to a switch 12v does it do the same?
fma965 said:
modern car? possibly smart power management and therefore not sending enough power to the camera as it detects the reverse light not needing that much power. my vw golf does it and my friends bmw 1 series did, if its wired to a switch 12v does it do the same?
Click to expand...
Click to collapse
Thank you, fma965. That makes sense.
The car is 2013 Prius. I did not realize cars are getting much smarter since last few years. 12v can come down a lot to save energy. I'll try to rewire the power connection.
yves31 said:
Thank you, fma965. That makes sense.
The car is 2013 Prius. I did not realize cars are getting much smarter since last few years. 12v can come down a lot to save energy. I'll try to rewire the power connection.
Click to expand...
Click to collapse
you may need to use a relay to detect when reverse light is on then trigger camera via 12v connection (elsewhere) otherwise the camera will be always on
yves31 said:
Thank you, fma965. That makes sense.
The car is 2013 Prius. I did not realize cars are getting much smarter since last few years. 12v can come down a lot to save energy. I'll try to rewire the power connection.
Click to expand...
Click to collapse
http://www.halfords.com/workshop-to...fixings/halfords-hef554-relay-12v-30amp-4-pin is what i've used (UK)
12v cigareete lighter / battery to 1 pin, gnd to another pin, camera to the 3rd pin and the reverse light power to the 4th pin (not in that order)
fma965 said:
http://www.halfords.com/workshop-to...fixings/halfords-hef554-relay-12v-30amp-4-pin is what i've used (UK)
12v cigareete lighter / battery to 1 pin, gnd to another pin, camera to the 3rd pin and the reverse light power to the 4th pin (not in that order)
Click to expand...
Click to collapse
Thanks. I ordered a 12v/30amp/4pin relay and will install according to your instructions when it arrives.
fma965 said:
http://www.halfords.com/workshop-to...fixings/halfords-hef554-relay-12v-30amp-4-pin is what i've used (UK)
12v cigareete lighter / battery to 1 pin, gnd to another pin, camera to the 3rd pin and the reverse light power to the 4th pin (not in that order)
Click to expand...
Click to collapse
Relay came yesterday and I installed it. Pull cigarette lighter as 12v power source, wired to the relay switch, and connected rear light cable to relay as trigger.
To my surprise, the problem of video still persists! I can get rear camera video when starting the car, but loss video ~10 minutes after driving when shifting gear to reverse.
I made sure the relay wired correctly (If connected wrong, I would be either stuck in permanent rear camera video or no video after shifting to rear gear). I changed video cable as well to be sure no cable issue. Also noticed that when the problem appears, I have to wait for the head unit to shutdown completely (not to sleep mode) in order to get video back from rear camera.
Not sure if this is MCU bug. The problem started since I had the unit and MCU got updated once. I'll update one more time to see if anything changes.
yves31 said:
Relay came yesterday and I installed it. Pull cigarette lighter as 12v power source, wired to the relay switch, and connected rear light cable to relay as trigger.
To my surprise, the problem of video still persists! I can get rear camera video when starting the car, but loss video ~10 minutes after driving when shifting gear to reverse.
I made sure the relay wired correctly (If connected wrong, I would be either stuck in permanent rear camera video or no video after shifting to rear gear). I changed video cable as well to be sure no cable issue. Also noticed that when the problem appears, I have to wait for the head unit to shutdown completely (not to sleep mode) in order to get video back from rear camera.
Not sure if this is MCU bug. The problem started since I had the unit and MCU got updated once. I'll update one more time to see if anything changes.
Click to expand...
Click to collapse
What MCU manufacturer and what version? i'm on KGL crossflashed to HA
fma965 said:
What MCU manufacturer and what version? i'm on KGL crossflashed to HA
Click to expand...
Click to collapse
It's MTCD_KD_V2.41_1, and is already the latest version. I'll try to flash other manufacturer's MCU since most of them are compatible.
Prior to flashing, I should start by erasing current MCU settings and set to defaults. Do you know the best way to do so?
Edit:
MCU flashed to HA-2.52, but problem not changed. Seems to be a hardware issue, or compatibility issue with Prius.
I tried to wire rear camera to front video input. Image did show up, but I had to press a button each time when switching to back gear. I may have to live with the issue.
Strangely enough I have a 2010 Prius and yes I have a similar issue. Mine works almost always, but if I switch to reverse, then back to any gear, then back to reverse, more then 5-6 time during a minute, then I have the same as you. I'm pretty sure we have the same cause. If I reboot the unit everything is ok. Our situation is definitely different to the german cars as they have a detection circuit for failed bulb and that is the reason for their issues. Ours don't have that, at least ZVW30 Prius. I doubt it's the power or the camera. That is the unit itself and as you say probably poor hardware design.
Agree with you.
Additional note:
I had some issues after cross flashing MCU. Lost RDS in radio and iGo became very slow. Now I flash original KD MCU back and everything got back to normal. Cross flash MCU may not be always a good idea.
Hi you solved?
Mine do the same..its another car...more strange that mine works fine before i change battery...after that start with problems...
It switch but take 5 mins at least...
I rewire.put relay.put direct 12 and nothins..sometimes it works at second..bit after nothings....
Any help?
Thanks
Hello,
I had the same issue and check voltage. For an insane reason, the wire provided with the radar kit was totaly failing.. measured voltage was around 5 volts whereas camera required 12v ( i though to the USB volatge first, but, no!). This red&black wire, i don't known how, went to a huge resistance... may be pinch. I change for good power wire and throw away the bad one. My rear camera get back...
Bruno
yves31 said:
Thank you, fma965. That makes sense.
The car is 2013 Prius. I did not realize cars are getting much smarter since last few years. 12v can come down a lot to save energy. I'll try to rewire the power connection.
Click to expand...
Click to collapse
I'm looking for someone who knows how to rewire. You guys know a good place?

WiFi/Bluetooth replacement?

Hey (first post!)
I was replacing USB charging port flex cable by myself (and for whatever reason decided to unscrew the main board as well, but put it back in place right after). After I put everything together I noticed that my WiFi signal is extremely low. Also tried connecting to my Bluetooth headset but it has very weak signal and can operate properly within 1m distance, otherwise it starts stuttering and finally disconnects.
So I figured that I might have damaged WiFi/Bluetooth board and need to replace it. However I cannot find any spare parts for it anywhere. I only found one for OnePlus 5 but it seems that most of the parts are different between 5 and 5T.
Any suggestions please?

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