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Front USB charging problems

Discussion in 'Model 3: Interior & Exterior' started by FalconFour, Jul 26, 2018.

  1. FalconFour

    FalconFour Supporting Member

    Joined:
    Mar 25, 2016
    Messages:
    41
    Location:
    Milpitas, CA
    I can't seem to get the front USB ports to charge... it charges for a few seconds, then stops, then charges, then stops, then charges, then stops... like the USB supply in the car is so appallingly wimpy that charging a phone overloads it. First tried it with an Anker PowerLine 1-foot MicroUSB cable, since I didn't have the Tesla MicroUSB cable yet (thanks for the Lightning and USB-C but you missed the most common one :rolleyes:). Just got the Tesla cable today and ... wow! Same problem, same thing, can't charge my phone in the car.

    Couldn't Tesla have just worked with Anker on integrating a reliable, powerful dual-port QC3.0 USB power supply in the car?

    Sigh. Anyone have the same problem or should I (try to) take my car in for service (already)?
     
  2. angelman

    angelman Member

    Joined:
    Jul 7, 2018
    Messages:
    139
    Location:
    los angeles
    I took my car in for service as the front usb ports didn't work at all. I got a model s loaner.. so no big deal for me :)
     
    • Helpful x 1
  3. Tdriver

    Tdriver Member

    Joined:
    Jan 20, 2015
    Messages:
    366
    Location:
    Palm Desert, CA
    You can get a full power charge thru the 12V power socket.
     
  4. FalconFour

    FalconFour Supporting Member

    Joined:
    Mar 25, 2016
    Messages:
    41
    Location:
    Milpitas, CA
    #4 FalconFour, Jul 26, 2018
    Last edited: Jul 26, 2018
    Doesn't really help when the phone area is completely separated from the 12v power socket... either requiring running a cable out from one compartment and into another which is REALLY FREAKING TACKY FOR A CAR OF THIS QUALITY. (I'm a Tesla/Musk fanboy by self admission, but seriously, this is pretty low-tier crap I was totally _not_ expecting to have problems with!)

    I put in a request with support to see if I need to go in for service... I kinda hope I do, because at least that means it wasn't designed this badly ;)

    update: The back USB ports charge my phone just fine! %#[email protected]#!!!
     
  5. seyclone

    seyclone Member

    Joined:
    May 8, 2018
    Messages:
    89
    Location:
    NY
    My iPhone 6S+ was down to 11% so I lifted the top cover, removed the phone pad, lifted the undercover, and plugged a long cable into the USB port. The phone showed that it was charging, but continued to lose power. I reversed the whole procedure, unplugged the USB cable, and plugged into one of the rear USB ports - Finally success!

    What's going on here? What's with the front USB ports?
     
    • Like x 1
  6. angelman

    angelman Member

    Joined:
    Jul 7, 2018
    Messages:
    139
    Location:
    los angeles
    In my case it was just a loose wire connection they needed to fix. Worth it, if only to get a nice model s loaner and a free carwash!
     
  7. hmgolds

    hmgolds Member

    Joined:
    Aug 30, 2018
    Messages:
    41
    Location:
    Brainerd, MN and Boston, MA US
    I just returned from a visit to the service center because of our phones not charging. They cycle back and forth and never properly charge.

    I was told there is a known issue with certain phones where (again, as I was told) the security in the phone OS is preventing charging. It doesn't effect the rear usb outlets as they are power only. The phones they mentioned are: Nexus 5 S, Moto G5 Plus, Sony Xperia Z5, Motorola G4, Motorola G5. Both of our phones are Motorola models. They don't have any problems charging via data-enabled outlets in other vehicles.

    They did replace the front usb hub. They were not able to replicate the problem with any of their phones (all iPhones).

    The issue did not arise until about a month after delivery. During that period I know there was one Tesla s/w update and very possibly a phone update.

    My next step is to try charging one of our phones from the front usb with the phone turned off. And to test with another Android phone or tablet.
     
  8. AlanSubie4Life

    AlanSubie4Life Active Member

    Joined:
    Oct 22, 2018
    Messages:
    1,511
    Location:
    San Diego
    Sometimes (can’t determine the pattern) , if you put a LOCKED iPhone in the front charger, iPhones have a message “unlock iPhone to use accessories”, and the phone will not charge until it is unlocked. This is new behavior (I think?). I don’t know whether it was an Apple update or a Tesla update that started this...

    At first I thought it had to do with the USB hub I have but I saw the behavior with the port which does not have the hub. But not right now...
     
  9. hmgolds

    hmgolds Member

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    Aug 30, 2018
    Messages:
    41
    Location:
    Brainerd, MN and Boston, MA US

    Apparently there can be incompatibility between the vehicle software and the phone software that interferes with the "handshaking" that goes on when you connect to a data-enabled usb port. I've found a workaround that works - use a DataBlocker between the Tesla port and my cable. A charge-only cable might work as well.
     
  10. Dana1

    Dana1 Supporting Member

    Joined:
    May 20, 2018
    Messages:
    752
    Location:
    Houston
    Have you tried another phone just to eliminate the phone as an issue?
     

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