What's with the car charger problem and cooked ROMS.

[Alabama978]

I flashed the official WWE rom repackaged by Mr Vanx and the car charger worked OK

I flashed Schaps early version 3.57a and it charged OK in the car. New 3.57a doesn't :-(

Black satin and Sleuths new ones don't work either with car charger.

This a a major problem for me with Tom Tom on for several hours at a time, and I do not want to go back to WWE repackaged after seeing so many nice ROM's ;-)

Is there a fix for this?

I tried searching before posting but could only find one question on this and no answer #335 in Official AT&T thread.

Also see #35 in Farios ROM thread (WM 6)

Al

[stesa]

i had no problem with anyone of the ROM you talk about (all tried) and car charger

[njmarchetti]

I have had the car charger problem too! Except I had it back with the stock WM5 ROMs as well, so I don't think it is related to the cooked ROMs.

Sometimes my car charger simply would not power the device, unless I did a soft reset. This happened using both the Y-connector and direct mini usb. I don't seem to have the problem nearly as much with the WM6 cooked ROMs.

Anyone know where this problem comes from?

[falum]

I just thought it was a dodgy car kit, i find a soft reset sorts it out.

[alkizmo]

non-HTC chargers can be modified to work 100% without any software modification.

Simply pry open the mini-USB male plug and link/solder pink 4 and 5 together.

Pin 4 & 5 are the pins on the right side (when the pins are facing UPWARDS)

I did this with one of my mini-usb cables and now it can charge my HTC with any USB power source.

Laptop in stand-by mode
USB wall charger
2xAA USB portable charger
USB car charger

etc

[toyfreak]

I have the HTC car charger which was offered as a promotion with the Cingular 8525 when it was introduced late last year. This charger does not pass enough current to keep up with high current draw situations like a very low battery (and possibly heavy device use?) I think it may only put out 500mA. I would try a charger which puts out 1,000mA first and see if that fixes the problem.

[Alabama978]

The charger I am using worked perfectly before WM6 flash, so I doubt if it is a current problem.

Only other possibility is that wm6 changed the USB somehow (unlikely)

UPDATE _ Well a soft reset and it now charges. I just hope it doesn't require SR regularly when travelling in the car

Al

[JoeVulture]

The Cingular charger that I have makes the phone charge every time, flawlessly, no soft reset required.

My Garmin GPS 20SM on the other hand does not connect pins 4 and 5 together, and thus will not charge the phone. If I do a soft reset after connecting it to the phone, it is fine. Trying to connect the pins in the charging cable together resulted in blowing up the charging module (in the GPS, the phone is fine). There is the possibility that I screwed up the solder job somehow. The funny thing is that I opened up the mini-USB connector side of the Cingular car charger and probed it using a multimeter - the same two pins that I connected together in the Garmin charging cable were shorted (either in the cable, or at the cigarette socket end, the pins were not connected together in the USB end).

I have actually sent an e-mail to AT&T requesting that they fix the software restriction preventing car chargers that send enough power to charge the phone (like my Garmin GPS 20SM). Whether or not they ask HTC to do it, that's up to them. HTC apparently will not fix this issue without prodding from the individual operators (that's what their e-mail to me said).

-- Joe

[zorrykid]

I've an old :-) Black 2.0
The same problem for me with the car charger....sigh

[bigbaldbloke]

I'm running Majick & get the same. All was fine before I upgraded from WM5, but now the charge light stays on only if I've done an immediate soft reset or once it goes to stand-by. My BT headset connection also drops after about 5 mins of non-use, unlike when it's charging.

[jcespi2005]

i think this issue is only related to the pin of the USB car charger connector. First time i put my hermes in my old car charger i used with my Wizard, i get this issue... i change the ROM several times, and every time i get the issue... then, after some research i buy a charger for hermes, and after this, i never have seen this issue with all the ROMs i have tried... and tried every ROM :) Now i'm on Sleuth 3.1 and, of course, no problem with the charger.

Seems also that somes ROMs have something modified to bypass this issue by software, but don't know wath...

So my recomendation is that you look for one specificaly hermes charger and not one with the USB cable removible.

Good luck.

[Alabama978]

Well today I plugged my phone into the car charger and nothing happened again. I did a complete restart (hold off button then confirn shut down) and after restarting it worked again. Take the charger plug out and put it back in, then nothing.

I may look for a Hermes charger but expect they are expensive. Until then I think it will be back to the boring official release as I can't be bothered with an SR every time I get in and out of the car.

My charger is not a removable cable type but a cigar plug one end and a solid USB the other. I don't think it is current related either since I had it working with TomTom on a low battery on several occasions on the WM 5 rom.

Perhaps some of the talented ROM chefs can figure it out ;-)

Al

[cp1md2b]

@Alabama,
When you experience this problem is it after having had the phone tethered or connected to your computer via the usb? I ask because this is a known problem with the 6700. It has something to do with the unit converting from one current to the other. Personally I suspect it has something to do with the SPL version. I'm afraid the soft reset is the recommended fix. I have seen this with a couple of the Black ROM's.

Currently I use vp3G's v3 and it has gone away.

[tochill]

I asked Faria about this in one of his threads and he said it has something to do with the power management settings in the ROM itself. If we can edit that, then the car chargers will work.

[JoeVulture]

i think this issue is only related to the pin of the USB car charger connector. First time i put my hermes in my old car charger i used with my Wizard, i get this issue... i change the ROM several times, and every time i get the issue... then, after some research i buy a charger for hermes, and after this, i never have seen this issue with all the ROMs i have tried... and tried every ROM :) Now i'm on Sleuth 3.1 and, of course, no problem with the charger.

Seems also that somes ROMs have something modified to bypass this issue by software, but don't know wath...

So my recomendation is that you look for one specificaly hermes charger and not one with the USB cable removible.

Good luck.

I actually have the Cingular charger, and it works fine with my phone. But, if I want to use it and the GPS 20SM at the same time, then I need two cigarette lighter outlets, and my car only has one. So, I'm getting by with using a splitter to power both units simultaneously.

It just sucks having to do that when the GPS 20SM is providing a perfectly good power signal that can be used. And after proving to them that they need to provide a cable that works specifically with the Hermes, they have mysteriously become silent on the issue. :mad: My only hope here is that HTC fixes the firmware as to not block it (as the same cable works with a T-Mobile SDA).

-- Joe

[naughty]

just to confirm same issue here, subscribing for the toping and awaiting resolution

[stynos]

http://forum.xda-developers.com/showthread.php?t=318849&page=75

I also asked Faria, he told me that he can't remember what he changed in power management settings... I will look for it later.

We'll just have to keep our fngers crossed...

[hpolimar]

i found a trick. if you plug the car charger and then turn off the phone it starts charging even if you turn it on again

[JoeVulture]

Assuming that you are talking about actually powering down the phone (hold the power button, as opposed to just a quick press, which "suspends" it), this is roughly the same thing as the soft reset trick. Suspending the phone and then bringing it back on does not work (with vp3G's ROM anyway).

My only beef with the soft reset trick is that the phone takes 30-45 seconds to boot, which is a pain when I want to use the GPS application.

-- Joe

[zorrykid]

Yes, but only when the phone restart (hold the power button) the charge
re-work (and the orange led turn it on...)

There is no solution when the led turn off...plug..re-plug the cable, unplug all the charger....Turn off the car...and (google translation...) "come down from the car to take one fresh air puff"… ahahah

[tiptoekirk]

My iGo charger when plugged into the wall seems to have some issues charging as well.. Left the cigaretter adapter at home this trip so i cant test it, and i do not have the oem charger so i have been using the usb cable to charge the phone.. A reset seems to make it work or charging with the phone off.. Any fixes for this yet??

[JoeVulture]

To all of those who find this a problem (and maybe even those who don't), I encourage you to discuss this issue with your carrier. If we can put enough pressure on the carriers, we might convince one of them to get HTC to make a ROM where the software issue in the USB stack is fixed. (I sent an e-mail to AT&T support requesting this, and they gave me back their usual non-committal boilerplate answer.)

HTC (this is probably a boilerplate answer too) has told me via e-mail that they do not implement feature requests unless he carrier requests them.

Unfortunately, I do not know enough about Windows Mobile/Windows CE to adapt the USB stack from another device where charging does work properly, otherwise I would have done it by now.

-- Joe

[sweetboy0215]

i dun have that problem. I just plugin my car changer and it charge right away. U sure u get the right car changer. Because they have the one 4 pin and 5 pin with the same look. Im using cingular 8525

[JoeVulture]

i dun have that problem. I just plugin my car changer and it charge right away. U sure u get the right car changer. Because they have the one 4 pin and 5 pin with the same look. Im using cingular 8525

I'm not sure who you're posting to, but if it is me:
Yes, I have the correct car charger, it works fine. My issue is that my Garmin GPS 20SM, which is advertised to charge a cell phone connected to it, does not.

This is because of code in the HTC ROM (intentional or not, I'm not sure) that will only allow devices that have pins 4 and 5 shorted together, or actually send USB data, to charge.

Garmin doesn't seem to want to fix the problem, so the only proper fix for me is to have HTC fix the software "defect".

-- Joe

[sweetboy0215]

I'm not sure who you're posting to, but if it is me:
Yes, I have the correct car charger, it works fine. My issue is that my Garmin GPS 20SM, which is advertised to charge a cell phone connected to it, does not.

This is because of code in the HTC ROM (intentional or not, I'm not sure) that will only allow devices that have pins 4 and 5 shorted together, or actually send USB data, to charge.

Garmin doesn't seem to want to fix the problem, so the only proper fix for me is to have HTC fix the software "defect".

-- Joe

i used to have this problem. The other charger for orther device not working right for 8525. I can even use the charge for Rarz V3 too, but i have to plug and unplug too many time in order to get it works. However, when i buy the charger for 8525 then its work perfect.

[JoeVulture]

i used to have this problem. The other charger for orther device not working right for 8525. I can even use the charge for Rarz V3 too, but i have to plug and unplug too many time in order to get it works. However, when i buy the charger for 8525 then its work perfect.

We know that the official charger for the 8525 works fine. That is not the issue here.

Currently I use a cigarette lighter splitter with the Cingular charger and the GPS 20SM, and everything is fine. My point (and possibly others' as well) is that HTC intentionally disables chargers that would work, with the exception of those that have pins 4 and 5 shorted. There is no valid reason that my GPS 20SM charger should not be usable, except that it does not conform to HTC's ("randomly" enforced) non-standard specification.

I have a solution that works (using a cigarette lighter splitter), but since the GPS 20SM will provide power to the phone (and it does to one other HTC phone, as well as a Nokia, and even my 8525 if I do the soft-reset trick), why shouldn't I be able to use it? The extra wires that I have running around my dashboard really suck.

It seems to me that HTC and the operators are in collusion to sell more accessories by making something non-standard, and a (I would bet very trivial for HTC) firmware change could fix it.

-- Joe

[Alabama978]

Well the reason my charger gives so much problems is software.

My original ROM supplied with the TyTn last year was the WWE sim free version. It never failed to charge the phone in the car.

The first DOPOD release repackaged by MrVanx also charged the phone consistently. So for me the issue is somewhere in the software

I realise that all the chefs have done a fantastic job in creating the roms, one of which is installed on my TyTn and I do not want to go backwards.

For me this is a big issue since I travel long journeys and am also in and out of the car a lot on the journey so it's just not practical to SR every time.

I could buy a Hermes car charger to try but I am sure it's software related.

So I appeal to the chefs to delve a little into this problem, it would be great if you could find a solution.

Al

[JoeVulture]

At the suggestion of somebody in this thread, I decided to try the Dopod ROM and the new HTC official release. I used two pieces of equipment, an Apple iPod wall charger (it has a USB connector and provides 5V, 1A), and my Garmin 20SM GPS. The Apple charger is known to work if I use a cable that has pins 4 and 5 shorted.

Both of those ROMs would actually charge the phone when using a cable without pins 4 and 5 shorted, but unfortunately only for a limited time (maybe five or six disconnects/reconnects). Doing a soft reset (with the cable unplugged) would fix the problem, but only for a couple of soft resets.

I guess it's progress, since earlier ROMs wouldn't even start charging the phone with a non-shorted cable at any time.

-- Joe

[species8472_rules]

I have had the car charger problem too! Except I had it back with the stock WM5 ROMs as well, so I don't think it is related to the cooked ROMs.

Sometimes my car charger simply would not power the device, unless I did a soft reset. This happened using both the Y-connector and direct mini usb. I don't seem to have the problem nearly as much with the WM6 cooked ROMs.

Anyone know where this problem comes from?

Same here. I have had the problem on my 8125 and 8525 with EVERY WM5 and WM6 I have ever installed. Car Charger works fine with Cingular Base ROM. I would love to know reason as well? I am glad to see I am not crazy. ;)