Hi,
I don't know if I'm posting in the right section, but here is the thing. I've got GeeksPhone Keon Developer Preview, It's a Firefox OS phone, but I've flashed an Android version on it. Everything worked great for about 6 months, and then the phone stopped charging, and it was also not detected by PC. When I plug it to a PC the phone does not detect it's plugged in also the PC does not detect the phone. I tried other microUSB cables and it's the same. I also tried flashing the Android again as I thought maybe it's software related but the problem still exists. Hopefully I installed recovery on it. I currently charge the battery externally, everything else works as expected.
Yesterday I decided to mess with the phone, as I don't have the warranty. I opened it up and checked if the phone actually has power when plugged to the charger. I noticed that the battery is powered so It is charging but the Android OS does not detect that, and decreases the battery via software. I think that the D+ or D- pins are broken, and I'm not sure if they are used for the phone to know if it's charging.
Here is the picture of the circuit board and my findings. Camera is not great so the picture is not that great also.
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0. Is the microUSB port, and I guess there is a problem with it, maybe D+ or D- pins got broken.
1. Those are D+ and D- resistors they are good I've tested them.
2. Those are battery pins. When I probed them when micro USB is plugged in they have power.
3. It's some kind of a IC for power, I think it's used to switch power to the battery from microUSB.
I don't have that good soldering skills so I couldn't resolder the microUSB port, so I'm asking if someone knows another approach to enable the charging via software, as software does not detect that battery is charging, when actually power from microUSB comes to the battery, and because of that it decreases the battery status on Android.
So I'm thinking if I can execute some command so I can trick the phone to believe it's charging, so the battery will charge and when I plug it out I execute the second command to turn off fake charging?
Thanks in advance!
Funny that you have this problem, I just fixed mine today that had the same problem. Basically the micro usb port stopped working because the parts soldered on the motherboard were loose after too much wiggling (cheap mtk phone I guess). I tried resoldering but its just too small, I could not event test the connexions with a multimeter. So I went to one of the million of asian cell phone shops in indonesia where I'm actually travelling and paid 5$ for a guy to fix it. They do it all the time and have expert fingers. Not my phone plugs perfectly, try to find one near your place, wherever that is
Sent from my P5 using XDA Free mobile app
vita94 said:
Yesterday I decided to mess with the phone, as I don't have the warranty. I opened it up and checked if the phone actually has power when plugged to the charger. I noticed that the battery is powered so It is charging but the Android OS does not detect that, and decreases the battery via software. I think that the D+ or D- pins are broken, and I'm not sure if they are used for the phone to know if it's charging.
Click to expand...
Click to collapse
What happens if you put a charge over those connections? It won't accept any? Or does it charge but the software isn't detecting it? Another way of fixing it would be making a separate charger for your battery only, of course that would mean that your phone is useless while charging. I'm pretty sure if you force a charge over it it will absorb it, but I wouldn't exactly know how you could check the battery status so that you don't overcharge it this way.
Related
Hey guys. I have had a few PPCs in the past but the Jade is my first SmartPhone. I like to charge my PPCs in the car as I use them for navigating. I use a universal holder plus I dismantle one of these
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as they are easier to wiggle into any dashboard gaps you might have. They are pretty readily available on eBay, but note that they tend to have pretty low guage wire and aren't configured as twisted pairs so it is pretty hit and miss using it to transmit data but it seems to have no problem transmitting DC current. I have used this for very long trips using devices that pull about 1A of current and the cable doesn't warm up so I presume the resistance must be low enough for charging purposes.
Simply connect the other end to a USB Car Charger and you are nearly ready to go. Connecting it up this way will trigger charging but I suspect the device assumes it is connected to a PC as it turns the screen on when you connect it this way as apposed to the Wall Charger where the screen remains off. Careful using USB Chargers designed for other devices (Ipod etc) as they have configurations which may confuse / damage your device. I found this out the hard way when I connected my Jade to an Ipod USB Car Charger which caused all sorts of grief with an undetectable microSD card, the device refusing to turn off which although is now resolved, I am still uncertain whether I haven't caused some damage
So how do you convince the Jade to charge from your Car Charger like a Wall Charger? Well first thing to be aware of is that devices that implement USB charging have various methods of detecting a connection to a Wall Charger as apposed to a computer. As I have mentioned, the iPod (and my old iPaq) uses a resistor configuration between the Ground, 5V and Data Pins to tell the device that it is connected. Fortunately the Jade is much simpler. I have determined from searching the web plus attacking my Wall Charger with a multimeter that all that is required is that the Data Pins are bridged and that the Metal Socket Surround is connected to the Ground Pin (which it is anyway in most Generic Chargers). All that was involved in mine was opening the Charger, finding the middle data pins on the circuit board and dropping a solder bridge between them. Make sure you buy a good quality USB Car Charger that is easy to dismantle (mine was held together by screws) and can provide at least 1A.
Enjoy
My previous phone was a palm treo pro (htc panther), for which i bought a sprint car charger (micro usb). The first charger that was sent to me was heavily used, so i complained and got a new one. After i returned my treo, i got the jade and decided to sell the new charger and modify the old one (which was working fine, except the connector didnt connect properly) to charge the jade. So i opened it up and soldered the two (+ & -) wires to an old usb extension cable, so that now i have a car plug with and usb(-a) socket slightly standing out. When i connect my mini-usb cable for the jade only the charging led lights up.
What did you do with Data Wires? If you joined them together then you have achieved the same outcome as a solder bridge.
Nothing, i just cut them as short as i could. They dont connect to each other...the outer ground isnt connected, too...
I noticed a few complaints on this forum and others about Goggle Navigation being too much of a drain on the handset even with it plugged into a car charger.
My suspicion is that this is down to badly made car chargers, and on a previous occasion using the Testing menu, I noticed that my own charger was being reported by the phone as USB.
So I set about trying to rectify this, using my awesome rolleyes knowledge of how the phone recognises what it's being charged with and an 'I don't care if I kill the charger, it was free' attitude.
I took it apart and tested continuity between the 2 middle (data) pins on the USB plug, there was none, and the problem was identified. I simply flipped the board over and soldered these 2 pins together and reassembled the charger.
Took it out to the car, plugged it in and lo and behold, the Testing menu now reports that it is plugged into an AC source! As my phone is fully charged and I don't have any trips planned right now I don't know how much real world difference there is, but it's looking promising, at least the phone now knows it can draw 1000mA instead of 500mA, and for 5 minutes 'work' it was worth doing.
I didn't bother with a how-to as I figured chances of someone having the same charger as me were slim, but pics aren't a problem:
Here is my universal USB charger with the cover removed:
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and the reverse side with the 2 pins soldered together:
Probably doesn't tell you a huge amount unfortunately, but to be honest that's because it really is a simple procedure with not much to tell.
where did you get your universal charger? I'm wanting to chop one up and hide the nexus dock on the side of my GTI instead of blocking my 6" double din monitor..
Almost like you can do your radar detector..
-Chalrie
It was an Xmas present, part of a universal kit. It's made by Mountech if it helps though.
thanks I'll look it up, hopefully most universal ones are designed the same usb wise then I could dremel my dash and have a easy access usb port for nav.
Fail!
Despite the mod, it's still not enough to charge/sustain the N1 with Google Navigation running (screen on full brightness). Guess it's just not man enough to produce the required 1A.
I have a USB port installed in my car as per the headunit
at full brightness and while using google navigation AND streaming Slacker via bluetooth... I do not have a -% charge
in fact, the N1 stays fully charged at all times... (however if I have less than 100%, it does take a long time for the % to go up... might take 5 minutes for 1% increase)
sooo I'm not sure what the problem is with the car chargers (as I don't use one)
I have a USB headunit and never thought to try and charge from it! D'oh!
It is a fact that charging the HD2 with a wall adapter goes a lot faster (1000 mA) than a USB port (500 mA). They make it possible for the device to detect if you are charging through a USB port or a wall adapter by shorting the two middle pins (D+ and D-) on a wall adapter. More information about charging differences between USB ports and wall adapters can be found here: http://www.attdroids.com/forum/motorola-backflip-development-hacking/683-motorola-fast-charge-usb-hack.html
Now under Windows Mobile, HTC built in the software that when you use the CU-S400, the HD2 WILL pull 1000 mA from the power source, not respecting the USB power standards. The issue is that Android DOES respect the USB power standards and detects the CU-S400 as an USB port and thus only pulls 500 mA through the car kit, because the D+ and D- wires are not shorted in the device. Even worse, they aren't even passed from the USB cable, so if you think using a hacked USB cable will solve this issue, you are wrong.
Because I didn't found a software solution for this issue and because charging at 500 mA is useless (with GPS on, the HD2 consumes more than 500 mA), I started hacking my CU-S400 . Now for all of you CU-S400 owners that are running Android, I think you might find these guidelines to hack it very useful
1. Click open the micro USB connector on the CU-S400 on the side by using a small, flat and thin screwdriver. Click open on both sides. It gives some resistance but don't worry, it will click.
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2. Lift out the connector through the clicked open box. Do this with the little mainboard first, trying to get the connector out first will not work. This step can require some tinkering, but don't worry, take your time and it will come out.
3. Now we have to short the D+ and D- wires of the USB port. As you can see on the main board, they are even not passed from the USB cable, which makes hacking the device a bit easier. Connect the two pins as shown on the picture with a cupper wire. I didn't soldered them on the mainboard with some tin on purpose, because I didn't wanted a permanent solution (very unlikely, but you never know I want to go back to Windows Mobile . If you want a permanent solution and aren't afraid of soldering and taking risks, I would advise to solder the cupper wire.
4. Test your hack! Before putting it all together again, connect your HD2 to the main board and put a USB cable in your wall adapter to make sure the bridge is made. From now on, don't ever connect your car kit to a PC USB port! It might work perfectly, but you risk to frie your PC or USB port if it isn't designed to provide the required 1000 mA!
5. Re-asseble your CU-S400 the reverse way you pulled it apart.
PS: just for the record, I can not be held responsible for any damage to your HD2 or car kit because of using these guidelines.
Great!
I just did it myself today not knowing someone had made a guide in here ..
But i strongly recommend to disassemble it the right way by pulling the transparent off by hitting it from the top and down, then it should pop right off, so you can unscrew the three small torx screws underneath it..
The CU S400 mod is a must for HD2 users, running Android and gps in the car
Hello,
Does it put your HD2 Android into car mode automatically.
Thanks for your replay.
Thanks!
Sorry if this is in the wrong place,
XDA has helped me out many times in the past, I've searched but found no concrete answers with this though:
I'm a truck driver and often charge my N4 on the go, probably doesn't help the battery, which for the last few months has begun to discharge in around 6 hours. I nearly bought a new battery but put it off then the phone died.
I plugged it into a in car (truck) charger on the 12v socket whilst at 5% and the charger started smoking. Pulled it out and found the phone was off and unresponsive (no surprise) with no red LEDs or otherwise.
Each time I did the following i also tried the volume down and power key or volume up and power key combinations with and without the charging cable plugged in and whilst holding down the buttons as well:
I plugged it in at home from a mains charger, nothing,overnight,nothing.
Also tried from the computer USB port,still nothing.
Bought a new battery, no change.
Bought a wireless charger in case the USB port fried: seemed to get warm but that could be the charger induction coils. Still no power on.
"Charged" the new battery externally with a spliced USB cable, nothing
"Charged" the new battery externally with a power supply at 0.5 ah and battery voltage went from 3.45 to 3.70 still no power on.
Repeated the above at 2.0 ah and put the battery voltage up to a maximum 4.5v for 10 mins - this time the backlight came on and would stay on until long press of the power button.
Then the phone got REALLY hot. I mean to the point of "something feels like its about to thermal runaway" hot. Pulled the battery and eventually it cooled down. If I plug the battery in now it gets hot on the WiFi/Bluetooth module first then spreads out over the board. As the power management chip is on the other side of the board to the WiFi module my question is: has this phone gone to hell? Is the chip overheating because its now fried or because its not getting the right power? Am I completely stupid and should get a phone that I can look after (Nokia 3210 anyone?!)
I had a N4 before this that packed up on me and I think the PMIC may have been the problem as well,only ever seen one post about it though that went unanswered.
Thanks for any suggestions, not trying to waste anyone's time or space.
Peace
UPDATE:
I'm also trying to resurrect an older N4 that had RLOD but when I tried to replace the battery I prised the battery connector off the pcb...ye. Should stick to not touching anything and not moving from one place. I soldered a pair of leads on to the contacts this evening to see if I get anything from it and I got a solid red led so thought I'd hook up more jumpers to the battery and go from there, in so doing I ripped the track off the pcb...no pad left to solder too and I cant find where the track runs to patch into it anywhere else. So I took the pcb off the phone I first posted to see what's underneath, and look what I found:
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And also:
Judging by how much black blood these chips have bled and the exit wound on the PMIC I think its fair to say I have two useless unrecoverable phones, no hope of data recovery via JTAG and no working phone either. Hope this helps someone looking to see why their phone gets so hot and won't turn on!
Can anyone help me, I got Reverse charging when I plugin with stock charger.
The phone still said "Charging" but the battery not coming up.
I have to reboot to recovery or fastboot to charge everytime.
I tried to reset factory or anything I could but nothing help.
Please kind to help me
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Most probably your charger is damaged...
Check your charger by plugging it into another device...
pranavkpr said:
Most probably your charger is damaged...
Check your charger by plugging it into another device...
Click to expand...
Click to collapse
Absolutely..
This used to happen when a connection draws OUT power from device.
Try with different cable/adaptor is recommended
I tried 3 but it’not worked
But when I boot to fastboot, Pc still can regconize my phone @@
When i turn off the phone, my phone continue wake, appear like charging, but auto turn off and replay this
P/s: sr abt my english
SBzBi said:
I tried 3 but it’not worked
Click to expand...
Click to collapse
If you tried another charger and it still doesnt charge...
Then take it to asus service center...the phone is faulty
pranavkpr said:
If you tried another charger and it still doesnt charge...
Then take it to asus service center...the phone is faulty
Click to expand...
Click to collapse
I found this : when i plugin charger phone not charge, but i reboot the phone while keep charger plugin, phone is charging
But when I plugout, and want to charge again, I have to reboot
SBzBi said:
I found this : when i plugin charger phone not charge, but i reboot the phone while keep charger plugin, phone is charging
But when I plugout, and want to charge again, I have to reboot
Click to expand...
Click to collapse
Hardware issue, get replacement device asap.
Hey did you get any solution? I am facing the same problem
akhileshr said:
Hey did you get any solution? I am facing the same problem
Click to expand...
Click to collapse
I reflash to stock rom and firmware.
Download this : https://drive.google.com/uc?id=12sL3C7McYRAiWbZINcuVh5yiV70y01Hy&export=download
Reboot phone to fastboot
Extract file to c:\adb folder and run file flashall_AFT.bat
your phone will clean stock, relock bootloader
Reverse charging pop-up
Pc does not detect my device , when plugged in socket phone is charging that time no pop up comes.
Any solution ?
venkyraja said:
Pc does not detect my device , when plugged in socket phone is charging that time no pop up comes.
Any solution ?
Click to expand...
Click to collapse
This happed to me as well. At first I thought of replacing the phone but then I realised one day I went out when it rained and there was some chance of water entering into the charging port so I used a hair dryer and put the phone deep inside a bag of rice for 2 days only at night and then the problem got solved. This may sound stupid but given it a try. Even the often pop up of reverse charging stopped from then. Hope it helps
Reverse charging notification appear when u plug otg cable. Between otg and normal usb cable has different pins connection to be worked with. It could be on phone female socket had some water inside, or conductor dusk, that make it became short circuit with otg pin, try clean it. If that didn't solve the problem, check if the pin inside got damaged or not, in some cases when i repairing phone, the water getting inside between the socket and the board, so u need to open the back cover to check it. Sometimes with just blowing it with hair dryer can clean the water, but there is another problem if its like salt water, the water can be dried out but the salt wont be dissapear and become a solid semi conductor type that make short circuit happens.
Facing problem of provide normal charging and data transmission
When I connect the mobile to the charger then it show the this message
==provide normal charging and data
I am facing same problem .what is the solution?
are u got any sollution for that reverse charging issue???????
same happens to my device also. can anyone help me!!?
I also facing the same issue
.reverse charging pops up everytime.And now my phone is not taking charge also
I have the same problem, maybe is dust or some liquid, on usb port, you can use some product cleans contacts for electronics, if not resolve, you need to replace the usb board, you can do it by yourself or leave it to a professional, be happy xD