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Samsung D series cell phones have some problems with USB charging, which cause them to not work with the excellent MintyBoost USB charger (Edit: This may be on faulty phones only, with broken ICs. Reports of these kind of problems stretch back to the D500, but are clouded by forum chatter).
This cable will enable you to charge a D series samsung from the minty (Tested: D900, Should Work: D800, D820, E780, E870, P300, P910, P920, T809, Z540, according to pinouts.ru).
The method is a little crude, but it should work for earlier D*00 models should they present similar problems. Get the right charger though; they have 18 pins out instead of 20.
This cable will enable you to charge a D series samsung from the minty (Tested: D900, Should Work: D800, D820, E780, E870, P300, P910, P920, T809, Z540, according to pinouts.ru).
The method is a little crude, but it should work for earlier D*00 models should they present similar problems. Get the right charger though; they have 18 pins out instead of 20.
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Signing UpStep 1Tools, materials, and background.
Tools and materials:
Soldering Iron
Solder
Wire Strippers
Heatshrink tubing
Third hand tool
Type A male USB connector (Cannibalised from spare lead)
Spare mains charger for phone
I found that a D900 would not charge from a properly assembled MintyBoost, and this vexed me. The poor battery life when using it as a DAP was the main reason I got a Minty :/
It would charge for three seconds, then stop. Doing this with the phone powered down elicited the message "USB Charging Not Available", even though the presence of the 5 volt USB power was causing the screen to stay powered on.
Some Samsung phones have problems charging via USB, even though they're supposed to be able to. Reasons for this in forum chatter range from faulty ICs to incompatability with USB 1.1 hosts.
The MintyBoost simulates a USB 1.1 host with a 3.3v pull up on D-, putting the pullup on D+ causes it to appear as a USB 2.0 host.
First step was to scavenge USB parts and make a dongle, with which I could swap pins around. Making the mintyboost appear as a USB 2.0 host didn't make any difference. I also found that with the USB 2.0 ports on my desktop PC, the phone would give a charging indicator perpetually, but in fact not be charging at all. Mains chargers work just fine, but USB power is screwed.
Grr! Silly Samsung. Should be simple!
Soldering Iron
Solder
Wire Strippers
Heatshrink tubing
Third hand tool
Type A male USB connector (Cannibalised from spare lead)
Spare mains charger for phone
I found that a D900 would not charge from a properly assembled MintyBoost, and this vexed me. The poor battery life when using it as a DAP was the main reason I got a Minty :/
It would charge for three seconds, then stop. Doing this with the phone powered down elicited the message "USB Charging Not Available", even though the presence of the 5 volt USB power was causing the screen to stay powered on.
Some Samsung phones have problems charging via USB, even though they're supposed to be able to. Reasons for this in forum chatter range from faulty ICs to incompatability with USB 1.1 hosts.
The MintyBoost simulates a USB 1.1 host with a 3.3v pull up on D-, putting the pullup on D+ causes it to appear as a USB 2.0 host.
First step was to scavenge USB parts and make a dongle, with which I could swap pins around. Making the mintyboost appear as a USB 2.0 host didn't make any difference. I also found that with the USB 2.0 ports on my desktop PC, the phone would give a charging indicator perpetually, but in fact not be charging at all. Mains chargers work just fine, but USB power is screwed.
Grr! Silly Samsung. Should be simple!
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Good information, really fantastic, is it work for samsung only or any other mobiles, I am using Nokia, i will check it on my mobile. Thanks for sharing information with us.