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:?: Hello. I was wondering if anybody has had same problem as i have.
I work on my xdaIIs a fair bit away from home and as a result i need to recharge it every now and then. I have a usb charger cable that i use to charge it using other computers and also via a usb car charger pluggy thingy sorry cant remember name :lol:
The problem i have is that while i am charging my xdaIIs using this method the battery power starts running DOWN as if the power is being drained!!! The device is definately telling me its being recharged.
Please help... I have no idea what is going on???!!!
THANKYOU in advance. 8) :?
Depends what you are using to charge I had the same problem with a mini sync cable I bought sync'd fine but didnt charge but that because it was designed for an XDA not an XDA2 bought a new one from boxwave and its fine.
But certainly if your device is sufficiently drained it will be pulling more power that your PC's USB slot will be willing to give it so you could be running into that.
Novice Gadget Boy said:
The problem i have is that while i am charging my xdaIIs using this method the battery power starts running DOWN as if the power is being drained!!! The device is definately telling me its being recharged.
Click to expand...
Click to collapse
I would guess that the charger doesn't supply sufficient current to actually charge the unit. I say this, because I have seen exactly the same thing (= orange light on and the battery power level decreasing fast) when I built my custom charger for XDAII. XDAII is very "picky" and needs a lot of power to charge and the "USB car charger", as you described it, probably can't supply enough.
Thanks for the reply guys.
It used to work when i first bought it but now doesnt.
Any ideas on what i could purchase that WOULD work??
I have had a similiar problem with a similiar charging setup, but mine charges fine as long as the battery level does not fall too low, if it gets below about 30% then it seems to decharge instead of charge... its really strange.
Cigarrete adaptor charger Draining mine too..
I had a Ipaq 2210 installed in the handle bars of my bike with a Holux BT GPS, recently after breaking 2 of them( IPAQS) I've replaced with a XDA IIs, I had a cigarrete adaptor for the IPAQs and another for powering the speakers... as now i can't use the speakers (due to the horrible 2.5 jack)I've modified the supplied connector for charging without the craddle to fit the connector for the speakers...
I realized from time to time the XDA turned it self off... and last travel it just died with the orange led on and battery 0%....
However first time I've used it was a 700km trip (paris - switzerland) and that time had no pbm (once or twice it turned off but that was all)
I've noticed that the supplied wall power adaptor is a 2Amp one... which looks like enourmous to me... but i tought that cigarrete adaptors were not amperage limited (but for your battery and generator/alternator)
One think I havent tried is to cut the Ipaq's one and fit the connector there... as the Ipaq uses the same wall power thing perhaps the cigarrete adaptor will be the same too....
Please any advice for me ??
I would also like to mod the suppplied connector into a usb stand alone sync cable (pls advise on it too....)
Also i would like to fit an Ipaq IR led onto the XDA to use it as remote for my digital rebel camera.... (advice again?)
Thanks in advance
N
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
i had no problem with anyone of the ROM you talk about (all tried) and car charger
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?
I just thought it was a dodgy car kit, i find a soft reset sorts it out.
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
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.
Did work before WM 6
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
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
I've an old Black 2.0
The same problem for me with the car charger....sigh
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.
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.
More on my charging woes - ROM Chefs - help needed
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
@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.
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.
jcespi2005 said:
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.
Click to expand...
Click to collapse
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. 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
car charger problem
just to confirm same issue here, subscribing for the toping and awaiting resolution
In Schaps' thread...
http://forum.xda-developers.com/showthread.php?t=318849&page=75
schaps said:
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.
Click to expand...
Click to collapse
We'll just have to keep our fngers crossed...
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
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
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
I have found that when charging my HTC phone (Kaiser now, used to be a Blue Angel) in my car, if I use a cigarette lighter splitter (So that I can charge another device too) that even if nothing else is plugged into the splitter, the phone will not charge properly. It seems to get enough power to maintain charge, but if I am low on batt, then charge the phone and use it for satnav while I drive, when I finish the journey, the phone has not charged.
This does not seem to be the case if I plug the phone charger directly into the cigarette lighter socket instead of via the splitter.
Knowing a little about electricity, I guess the splitter is running the sockets in parallel or something and dividing the power between the sockets?
Any ideas on what I could do? I would imagine a car battery has plenty of power, maybe it just isn't being distributed properly. I guess the splitter is possibly limited such that it can't pass too much power if only one device is connected?
All the devices I want to use can power from USB, so I am guessing that the solution is maybe a USB hub designed for car use. I have 3 items typically that I want to be able to charge, so a 4 port hub would be nice. Anyone know where to get one in the UK?
I've got the same issue with my car charger (HTC Mogul phone), although for me it doesn't matter whether I use a splitter. Where did you get your charger? Maybe it just isn't supplying enough power.
While it's true that having two devices in parallel causes half the current to flow to one and half to the other (assuming they have the same resistance), the power supplies should be more than capable of pushing enough current for each device, especially when the car is running (and you're getting your electricity off the alternator).
well I thought it could be a dodgy cable but I just got an official HTC car charger for my kaiser and am observing the same thing.
It could have been the cigarette lighter->USB converter or the retractible sync cable I used to use, I will do some more tests and see if I can work out which bit is causing the problem - it wasn't until just recently that I had an official end-to-end solution (ie one HTC car lighter to miniusb cable) so I will try connecting it up various ways, but it isn't exactly quick to test if it is good or not as you need your phone low on batt and to be driving around for an hour or two to see if it is charging properly.
Flat Batteries
Seems XDA has software to prevent charging batteries which are too flat. (Perhaps to protect internal circuitry).
I recommend this thread which has a solution:
http://www.htcwizardweb.net/node/2013#comment-3808
I made it work OK but it is a fiddly job. An external charger for these batteries would be great but I can't find one.
Good luck !
I have the same issue. The battery has refused to charge when its below 40% or so. I now carry a spare in the car, especially as I often depend on Sat nav working!
yeah I had that low batt thing happen with my BA once or twice.
Actually, now I have kept an eye on it, it doesn't seem that bad with my kaiser. I no longer use my car lighter usb adapter though - I use the HTC car charger into a 3-in-1 splitter (usb, extusb, 3.5mm audio) and from that into my Kaiser and it seems to charge the kaiser ok (albeit a little slowly) even when I have a cigarette lighter splitter also powering an RF transmitter.
So I think maybe the weak link was the car lighter to usb adapter, maybe it was outputting too little power on the USB rails.
Car Charger died
I'll jump on an old thread...
My HTC branded car charger (that I got from sending in the post card) worked fine for my Cingular 8525 until a few weeks ago. Then it got flakey and now it doesn't want to work at all.
My 8525 will still charge on my laptop connected cradle and the AC charger.
Has anyone seen any failures in these chargers?
Any recommendations on chargers that are reliable?
Dave.
I have a TomTom one car charger that worked fine on my Hermes when i had wm6 from T-Mobile installed. I then installed PDA corner v10 and worked now I upgraded to v11+ and its not charging any hack I can do to get this working ?? I got my Hermes installed how I want it but need to charge when in the car to get a whole days use.
Usually when I have this problem, I just turn off the phone, and then back on with it plugged into the car charger and it will work fine.. give it a try. I know its annoying, but its a simple workaround.
I plug it in and do a soft reset if it does not start charging.
Agree with above its a pain in the #@% but reset while plugged in usally works (untill you "use" the pnone, then it stops charging)
Or as has been said before, just buy a proper car charger and use that for the tom tom/other usb as well ?
Cheers
Fadge
tnt for toadays rom
This is what I do and it usually works for me (assuming you are connecting to car charger after activesync):
Make sure to power off (standby) your device while in activesync before disconnecting it from the computer. This does seem to be ROM dependent, as with some ROMs this is not necessary.
with my hermes i have similar problem but solution presented here - soft reset while plugged works for me allows to recharge my TyTN up to 100%
Thankyou
Thankyou will give this a go
All -
I posted quite a while back about why this happens... It seems not all USB-mini chargers are created equal... It turns out that apparently the connections between two of the 5 pins need to be "jumpered" (connected) which is easy enough if you have decent electrical / soldering skills and a charger you can half-way get apart. I can't for the life of me remember which two of the contacts need to be jumpered but if you do a search here on XDA I'm sure you'll find it. I bought a cradle-style charger on ebay, took it apart, jumpered the two pins, and have *NEVER* had the intermittent-charge-when-I-want problem again.
Hope that helps.
Hi there everyone,
I have been trying to get my Nexus 7 2013 installed into my car seamlessly without problems since December 2015. I have Timur's Kernel v4 (6.0.1) running on it, and it was working flawlessly.
However, I decided that the no battery mod needed to be done as I just could not leave that battery inside a hot car - way too risky.
So, I did the Kevdav no battery mod - with success.
However, once the battery connection was receiving 5v via a usb car charger the OTG cable connected to the tablet's mini usb port would not wake/suspend the tablet properly. It would wake it up, but once it was awake the little battery icon at the top would forever show that it was 'charging' and once power was cut to the otg y cable / mini usb, it would not suspend (would still show as charging).
I did research, and bought a Drok DC-DC step down converter. I lowered the voltage to the battery mod connection to 3.7v (and tested up to 4.7v) and this alleviated the problem of suspend/wake. I think since the original battery gave out less voltage then the otg/charging connection, this needed to be replicated in order for the otg to work.
However, I now have a new problem that I cannot seem to fix. This problem only seems to happen in the car and does not occur when testing it in the house using normal wall chargers.
For clarity, this is how everything is wired up in the car.
Nexus 7 battery mod side of things:
Nexus 7 battery terminals > 22awg usb cable > drok dc dc step down power supply (this board has a female usb port for output) set at 3.7v (tested up to 4.7v) > input is connected to car's constant 12v connected directly to battery on a fused wire.
Nexus 7 mini usb port side of things:
Nexus 7 mini usb port > usb otg y cable > mini usb cable > 2.4a usb car cig adapter hardwired to car's switched 12v accessory wire.
The link to the drok dc dc step down is this - https://www.amazon.co.uk/dp/B01FDBY66Y/ref=twister_B01GO268W6?_encoding=UTF8&psc=1
I turn on acc ignition to send power to the otg connection. It'll power up. However, if left in standby overnight the tablet won't power up. If I physically press the tablet's power button it'll wake up, show the wake up animation, and react as normal (including any subsequent power downs). However, if I don't press the power button and I turn off the ign again, an icon on my car's instrument cluster will be faintly illuminated - this is odd behaviour and should be completely out. When this is the case, if I get out and try to lock the car the remote central locking doesn't work.
This light will go out if I physically disconnect the otg y cable from the tablet, and low and behold the remote central locking works.
I'm no expert on electronics and such, but it seems to me that power may be flooding back into the OTG connection from the no battery mod power?
Does this make sense? Sorry for the long question, but I was wondering if anyone had any experience with troubleshooting or any advice? I've this one problem and then I'm set but I just can't seem to figure anything out and need someone's advice who is in the know rather than take wild stabs in the dark using my own logic because if I do the latter, not only will I waste money on needless components but I'll more than likely break something. I've read stuff about diodes or something in order to regulate power flow but I'm not even sure I'm using the correct terminology here so if anyone can tell me I'm onto something here or I'm talking complete nonsense then anything is appreciated!
I did search these forums and google but I really cannot find anything that is similar to my problem.
Thanks for any input guys, whether it be any tips on what I'm missing or what I need to change (software or hardware, electrical, etc) - it's all very much appreciated.
Antony
Edit: so sorry I think I posted this is the wrong n7 2013 sub section. I can't delete the post but if a mod could please kindly move it to the relevant forum I'd appreciate it. Thanks!
antc101 said:
it seems to me that power may be flooding back into the OTG connection from the no battery mod power?
Click to expand...
Click to collapse
Hi, indeed, and your "2.4a usb car cig adapter hardwired to car's switched 12v accessory wire" requires a small mod to prevent the power feedback. It needs an extra 1A+ diode connected directly to 12V input. You could modify the adapter's PCB or simply replace the fuse's internal wire with a diode where its cathode goes to the spring and its anode to 12V input. Or just place the diode somewhere along the adapter's hardwire. $0.16 1N4001 is good enough ([email protected] is OK for [email protected]).
Not sure if thread is still active but I also have the same symptom with tablet turning off completely overnight. I am running constant 12v to 3.7v dc to dc on battery input and car adapter 12v to 5v on microusb cable in. Tablet will work fine with on and off but after car is shutdown for the night it will not turn on in the morning. It shows me battery charge icon only. I dont have diode installed either. Not sure if thats the cause. Anyone know why it would completly shutdown overnight?
Neo2020Marz said:
Not sure if thread is still active but I also have the same symptom with tablet turning off completely overnight. I am running constant 12v to 3.7v dc to dc on battery input and car adapter 12v to 5v on microusb cable in. Tablet will work fine with on and off but after car is shutdown for the night it will not turn on in the morning. It shows me battery charge icon only. I dont have diode installed either. Not sure if thats the cause. Anyone know why it would completly shutdown overnight?
Click to expand...
Click to collapse
Hi there,
Been a while since I posted on this thread but just wanted to update on what I have done so far.
Since my last post, I don't have any issues. I placed a diode as mentioned above on the +12v for the accessory power. This seemed to have fixed any back flow of power.
Concerning the power off over night, I'm pretty sure this was something to do with Timur's kernel. I forever had issues with that thing - eg, suspect and wake issues, accessories connected to my usb hub..
I switched to a stock version of android 6.0.1 - MOB30X if memory serves... and installed Elemental X version 5.16. No issues with this setup what so ever.
Huh.
I run my Nexus 7 on my car with the battery, mounted just above the dashboard, with direct sunlight exposition and no UV film on the windshield. It's been a whole year without issues, thank God.
https://i.imgur.com/cPNhDDc.jpg
I live in the Northeast of Brazil, where's 30C to 40C through the year. Sometimes I come up to the car and the tablet shut off due to the heat.
Battery still lasts wonders and there's no signs of damage.. yet.
Is it really adamant to remove the battery, or is it just a precautionary measure?
GTMoraes said:
Huh.
I run my Nexus 7 on my car with the battery, mounted just above the dashboard, with direct sunlight exposition and no UV film on the windshield. It's been a whole year without issues, thank God.
https://i.imgur.com/cPNhDDc.jpg
I live in the Northeast of Brazil, where's 30C to 40C through the year. Sometimes I come up to the car and the tablet shut off due to the heat.
Battery still lasts wonders and there's no signs of damage.. yet.
Is it really adamant to remove the battery, or is it just a precautionary measure?
Click to expand...
Click to collapse
You better have more luck.
My nexus was put under the dash and was fine for around 3 years. And it became expanded in just 2 days, separating the screen and the case. So I have urgently remove the battery.