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Rear usb-c ports ?
- Thread starter Coley50
- Start date
Which iPhone are you using and have you used the iPhone and the cable with a USB-C charger before?
My iPhone X charges on the rear USB-C ports. I often charge my iPhone using a USB-C charger when I want a fast charge and I tested it in the car with an original Apple USB-C to lightning cable which I use already and so know it works.
My iPhone X charges on the rear USB-C ports. I often charge my iPhone using a USB-C charger when I want a fast charge and I tested it in the car with an original Apple USB-C to lightning cable which I use already and so know it works.
Works for me with iphone X, SE and iphone 12.... using an ANKER cable.
https://www.amazon.ca/dp/B07H27J698/ref=cm_sw_em_r_mt_dp_4epGFbPKCFGB8
https://www.amazon.ca/dp/B07H27J698/ref=cm_sw_em_r_mt_dp_4epGFbPKCFGB8
darkNstormy
Member
I have an iPhone SE 2020 and have the same issue with the USB C Ports at the rear of the car. It is not a faulty cable, if I plug the cable in at the front USB C it works, as does wireless charging. Haven’t done anything about it thought I would wait and report it if any other issues cropped up.
Could be a faulty port. My work iPhone seems to charge ok, although I do go through a quadlock wireless charger. I can't think of a reason why the iPhone wouldn't charge if the port wasn't faulty it . iPhones don't do fast charging so it's not like it needs to draw more power.
This is my second model 3 with the new USB c ports in the rear and neither have worked? Iphone x and 11 and used original cable plugged into these adaptors from amazon. My Samsung s9 has no problem?
Gritin USB C to USB 3.0 Adapter,...
https://www.amazon.co.uk/dp/B081S27N43?ref=ppx_pop_mob_ap_share
Gritin USB C to USB 3.0 Adapter,...
https://www.amazon.co.uk/dp/B081S27N43?ref=ppx_pop_mob_ap_share
It’ll be the adapter. Try a USB-C to Lightning cable. iPhones are notoriously fussy with third-party accessories.
Glan gluaisne
Active Member
As above. Older iPhones default to the legacy method of using the potential on the data pins to tell the phone the available charge current from dumb USB ports, essentially any USB connection that the phone cannot initiate a smart connection with. I modded an adapter to enable my phone to charge from any USB-A port some time ago, just a matter of putting some resistors to connect two data lines to +5V and 0V, to fool the phone into thinking it was plugged in to an Apple charger. In typical Apple fashion they chose not to use the standard USB charge protocol. The difference between Apple's way of doing things and everyone else's is described here: Apple and other USB charger secrets |
Having said that, USB-C supports intelligent handshaking to set the charge current available, and also the charge voltage (USB-C allows up to 20 VDC at up to 5 A), and the Model 3 is supposed to have that intelligent handshaking enabled, as someone's done a tear down of the rear USB ports and it looked very much as if the proper USB voltage/current control was fully implemented. Newer Apple devices are supposed to be able to fully use USB-C, as Apple made the Thunderbolt 3 connection using the USB-C standard (but chose to give it their own name, again in true Apple fashion). Charging problems, and even damage to equipment, from using USB-C cables that don't have the correct internal pull-up resistor configuration is a known problem. Knowing whether a lead has the correct pull up resistor internally on the configuration channel pin seems to be a bit of a lottery, especially, perhaps, with cheaper cables originating from the far east.
Having said that, USB-C supports intelligent handshaking to set the charge current available, and also the charge voltage (USB-C allows up to 20 VDC at up to 5 A), and the Model 3 is supposed to have that intelligent handshaking enabled, as someone's done a tear down of the rear USB ports and it looked very much as if the proper USB voltage/current control was fully implemented. Newer Apple devices are supposed to be able to fully use USB-C, as Apple made the Thunderbolt 3 connection using the USB-C standard (but chose to give it their own name, again in true Apple fashion). Charging problems, and even damage to equipment, from using USB-C cables that don't have the correct internal pull-up resistor configuration is a known problem. Knowing whether a lead has the correct pull up resistor internally on the configuration channel pin seems to be a bit of a lottery, especially, perhaps, with cheaper cables originating from the far east.
Just a quick update. I tried an original Apple USB-C to Lightning cable in both rear ports just now and my iPhone is charging quite happily. As a result I've cancelled the Ranger appointment (and will check this forum far more regularly in future!)
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