MobileRead Forums - View Single Post - Vox Kobo Vox Charger

PaulLeadbeater · 03-27-2012, 08:24 AM

Many people have complained about the Kobo Vox charging situation

, viz.

Short Cable
Lack of extra charger for sale
- Inability of Tablet to recognise 3rd Party chargers (no green light)

I have read various suggestions about how the charger is wired but nobody has actually published any results.

I have now investigated the wiring of the charger (without opening anything up) and I find the following setup for the micro-B connector -

Pins 1 and 5 provide 5V power - as they normally do
Pins 2 and 3 are shorted together - as they are when a USB outlet is use only for charging (i.e. no data transfer)
Pin 4 is shorted to Pin 5!

Pin 4 in normally not connected for a micro-B type connector so I think that Kobo have used this pin to let their tablet recognise only their own charger - and nobody else's!!

I would like to know if anyone has found the same as I have and if anyone has constructed a suitable adaptor to overcome the Kobo restriction. In the meantime, I will continue my own investigations and, hopefully post some more info.

03-27-2012, 08:24 AM	#1
PaulLeadbeater Junior Member Posts: 2 Karma: 10 Join Date: Mar 2012 Device: Kobo Vox	Kobo Vox Charger - 3rd Party Solutions Many people have complained about the Kobo Vox charging situation, viz. Short Cable Lack of extra charger for sale Inability of Tablet to recognise 3rd Party chargers (no green light) I have read various suggestions about how the charger is wired but nobody has actually published any results. I have now investigated the wiring of the charger (without opening anything up) and I find the following setup for the micro-B connector - Pins 1 and 5 provide 5V power - as they normally do Pins 2 and 3 are shorted together - as they are when a USB outlet is use only for charging (i.e. no data transfer) Pin 4 is shorted to Pin 5! Pin 4 in normally not connected for a micro-B type connector so I think that Kobo have used this pin to let their tablet recognise only their own charger - and nobody else's!! I would like to know if anyone has found the same as I have and if anyone has constructed a suitable adaptor to overcome the Kobo restriction. In the meantime, I will continue my own investigations and, hopefully post some more info.