Px5 USB not working - MTCD Android Head Units Q&A

hi, I sent the radio for a warranty because the touch screen did not work. They sent me a new radio, this time the USB is not working from the beginning, I tried a few pendrives, a wireless keyboard, charging the phone, nothing works. I checked with a multimeter and it shows 2.26V on the radio and the same at the end of the USB cable (so the cable itself is good, I also checked the cable and it's okay) anyone can knows where is the problem?

I d send it back, the only accounts I ve read about usb not working have when the SoM has been recovered a la @marchnz's method and someone has been heavy handed inserting pins into the SoM.

I've had several issues with USB on these as well. If someone tries to charge their device off the port, it tends to blow out components instead of signaling a brownout and shutting off the port.

I've used the pins metod to upgrade my SOM to Orero and my USB stop working. I've fixed my SOM with a thiny piece of alluminium inserted in the pins i've used for the upgrade.

Related

(FIXED) Imate 9502 broken usb port

I have just bought an imate 9502 with a broken charger port (usb plug) inside someone has tried to fix it by linking the pins from the usb port to the pcb but have failed so bad that they have completely f*ct where the pins soilder to the pcb, i was hoping someone with a 9502 would be willing enough to open theres and take some macro photos of the usb port so that i can attempt to trace back where the tracks go and fix my phone.
Any help would be great thx.
P.s in the meantime does aybody know where i can get an external battery charger?
I ended up fixing it by removing the old usb plug and replacing it with a new one and than tracing back the power wires on the pcb than i bit of trial nd error but in the end found them, soildered some tiny copper wires back to the new plug and it now charges perfect
Only downside is that the usb still doesen't work so no sync with the pc at all
which usb plug did you need and where did you get it from?
it would help alot as i am also thinking of doing this to mine

Qtek 9100 USB PROBLEM

Hello,
Problem: then i connect my Wizard via USB cable it shows no signs of any connection at all, but battery is charging. I still can sync via bluetooth and IR and it works just fine, but USB is totally dead. Maybe my wizards usb slot is broken ? Any suggestions what to do ?
Best reggards
yolkee
Have you tried another cable?
I have a P3600 (Trinity) with a mini USB socket. Every now and again, the charging light comes on but the USB fails. I reckon the socket or cable end is getting a bit worn/tired out, and only the +5v and ground contacts actually connect. The two centre data lines don't, hence the Activesync error, but the phone is still charging Fiddling with the socket or just pressing it down toward the back of the phone will make it work.
If this doesn't work, maybe the socket has completely had it.
Update to this: Feb 25:- The USB connection has now failed completely. Charges the battery, but ActiveSync cannot connect, other phones are fine using the same cable. No amount of fiddling will get it to work. The device is now assigned to the ever growing pile of electroscrap used as demo machines. Now on a company hand-me-down MWg Zinc II. Not an HTC device, I know, but I won't be leaving the forum.
yolkee said:
Hello,
Problem: then i connect my Wizard via USB cable it shows no signs of any connection at all, but battery is charging. I still can sync via bluetooth and IR and it works just fine, but USB is totally dead. Maybe my wizards usb slot is broken ? Any suggestions what to do ?
Best reggards
yolkee
Click to expand...
Click to collapse
Welcome to forums
Perhaps here you can find your way:
http://wiki.xda-developers.com/index.php?pagename=HTC_Wizard
Also see Wizard section for more help.
Hope it helped,

[Q] micro usb cable help (pinout++)

I bought some really cheap retractable cables of ebay. When I got them they didn't work at all. I opened and rewired the micro-usb connector - the cables were connected all wrong, but after a little soldering I think they're correct.
Now the cables are working fine with my Nokia N82, but when I connect them to my Desire and Desire HD my computer won't recognize it as USB devices, only charging.
I've looked at the pinout here http://www.kineteka.com/microusb-b.aspx - should pin 4 be connected to GND to use it with HTC?
Any tips?
I was curious of the pinout, thanks for the link.
As far as wether the pin should be grounded, well... if it's not working ATM ground it and see if it works? Since you're successfully charging the phone you know you connected the +5 correctly, grounding any other pins won't cause damage...
Cheers
P.S. Also sometimes good to check the obvious, did you enable the Mass-Storage option in Android?
I've had similar issues with USB 1.1 ports.
Are you connecting it to a USB 2 port??

[Q] Philips AS111 force to charge

Hi all,
I have a Philips AS111 docking station/bluetooth speaker/charger. Worked perfectly for my SGS2, however, since I bought a new phone (Sony Xperia Z1 Compact) I'm experiencing some problems.
I bought an micro usb to magnetic connector adapter to be able to connect my phone to the dock without having to open the flaps all the time. I took it apart and it basicly splits the first and fifth pin of the micro USB connector to the pins in the magnetic connector. Unfortunately I may not link to external images...
Unfortunately, my phone does not charge when using the adapter in combination with the Philips dock. It does when using the original Sony USB charger and the adapter, so the adapter is fine.
I measured the voltage on the two pins, and it's 0V. I even tried to fool the dock by putting a 1.5kOhm resistor over several lines. Only when I put a 1.5kOhm resistor between 5V and the connector housing, the dock responded by turning on Bluetooth. Voltage went crazy, flipping between 0 and 3V, but phone still doesn't charge.
I think the sollution is to fool the dock by putting a certain resistor between certain lines or by shorting certain lines. Does anyone have a clue how to fool the dock to think there is a device connected, so it opens the +5V line?
Thank you very much!
Nobody into usb connection protocols? :crying:
Finally got it working. Eventually I needed to connect two wires together inside the device. One of them being 'CLAS1' and the other was Ground. Both could be found on the connector going to the micro usb plug of the device. Unfortunately I can not post a link to the photo I made of it.
mblox said:
Finally got it working. Eventually I needed to connect two wires together inside the device. One of them being 'CLAS1' and the other was Ground. Both could be found on the connector going to the micro usb plug of the device. Unfortunately I can not post a link to the photo I made of it.
Click to expand...
Click to collapse
Hello!
I've just bought an AS111. Charges perfectly my SGS4 but it doesn't do a thing when I try connecting my SGN3 (the one with the micro-usb 3 connector) to the Philips dock. I know that the micro-usb 3 is backwards compatible but I do believe that the AS111's dock outputs too little power - or something like that, I am no expert.
I was wondering that maybe your experience could be of help to me. What do you think? If so, could you please guide me through the stuff you did to the dock? Thank you!

Tf300t keyboard dock mod USB connection

Hi all,
I am trying to mod my old tf300t and keyboard dock into a dex dock for my note 9. Im not worried about the tablet portion as i can get a lcd controller for the panel. However ive been soldering and desoldering for the last 3 days. I am trying to leverage the docks kb controller and add a usb connection or modify the dock port into a usb.
I have looked at the various pinouts but cannot get the keyboard working.
I dont care about audio or sd card or the extra usb port.
Any help or pointers would be great.
Here is a mockup of the pinouts i have soldered based on the pinouts i found
Ive been trying to test it on an old s7edge incase i wire something wrong. It detects a regular keyboard but when i try this nothing...if i use the wall charger i see that the dock is charging but still nothing at the dock connector. Ive been trying with a usb 2.0 cable. Connected to the d+ d- vcc ( all 3) and multiple grounds and i pinned the sense pin to ground as well.
I have also tried to open the charge cable and solder the usb to the data pins on that both with and without ground. And use a 5v plug and the original asus plug.
The dock port is basically garbage at this point so if i plan to use that i need to use the 2 20 wire connectors and map the individual wires .
I have managed to get the s7edge to detect that something is connected. However i then resoldered the pins to try more as it wasnt working. So i need to go back to the beginning to try again. I believe my issue was due to the otg aspect of the usb. Im using an adapter for the phone but i also tried to wire the connector the same way. Ill take some pictures of it later if i can get it working
So not sure if anyone is following this thread but i have made progress.
I have totally butchered the original 40 pin connector and now am tapping into the 40 individual wires that connect the main board to the connector pcb. I can get my s7edge to detect that the usb connector is attached but it keeps telling me that a high power usb device is attached and that it needs an external power source.... so today i busted out the multimeter and i believe i connected one of the usb host vcc connections to the other vcc connections so i separated this. I also believe that the s7edge has some usbotg voltage issues so im going to test it with an old macbook pro with windows to see what it picks it up as. When i get some more time i will try to trace the other wires there might be something else needed
Maybe
Nice job, I'm not particularly knowlegdable in electronics but I remember there is a battery portion in the dock? Maybe it causes some error during otg?

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