Hi,
I have a LG G2 D805 that doesn't turn on. What happened is that the digitizer broke, so i couln't turn off the phone. So i decided to open it to disconnect the battery and wait for my digitizer replacement to arrive.
When i disconnected the battery the phone turned off, so i reconnected the battery to test it out. The phone didn't turn on.
I connected the phone to the charger and the led flashed red. Again discconected the battery and i reconnected it and the phone turned on (this was with the charger connected and after many tries).
So i disconnected it again to test it out because this is really weird, and after many tries the phone turned on but with a message that the battery was not connected. Tried again, and the phone does not turn on at all, not even with the charger connected.
I think that the motherboard it is blocked in some way, I checked the the battery (it is fully charged) with a multimeter and it gives 4.3v of output.
I checked if the motherboard was getting any voltage, and it is getting 3.7v.
I hope you guys could help me, Thanks!
Related
Hi,
My wizard main battery (wiza16) was very low and the wizard stop with a message “The internal battery is very low”. After coming back home I have tried to charge but it is not taking charge and didn’t turn on anymore. I recently bought a new battery (wiza16, 3.7 VDC, 1250 mAH) thinking that it will work again but still the same problem, wizard is not taking charge or turn on.
Can anyone help me?? What can I do to start my wizard? Do I need to change the tiny little battery (which is inside the wizard)? Kindly help me.
Wizard service manual
Hi,
See if when you connect the power plug the led turns red, if yes....
If Charge light is red when plug in AC adapter, it means the main battery is not charge enough and can’t power on,
You just need to continue charge unit the light become Amber
If not, i think you have a problem.
Check if charger its working and if its pluged.
If it helps --- ftp://ftp.xda-developers.com/Wizard/Docs_Tutorials/Wizard_Service_Manual.pdf
Wizard Battery discharge completely
Hi,
Thanks for quick reply. there is no light when i connect my wizard with PC. I don't have the AC charger, I have lost that for long and was using my PC usb to charge. trying to get one AC charger.
There was no problem with my wizard, just can't turn on after it's battery discharge completely. Even the new battery couldn't turn that on.
You'll need the original charger if the battery has complelty discharged as it will only charge from the computer if the phone is powered on.
This happened to me before.
There is a trick to giving the battery a quick charge which will give it enough juice to boot the phone up and allow it to charge from usb. its not recommended but works.
You will need a spare usb cable, cut one end of, strip the wires back and connect the red wire to + and the black to - on the battery, only do it for a short period, about 30 seconds while conneted to your computer.
You may need to give it a few 30 second bursts to give it enough juice.
Pop the battery back into the phone and switch it on while pugged into the PC
Took me a few attempts to get enough charge in the battery for it to boot up.
Wizard battery
You can also use a 9V battery to jumpstart your battery. But then you have to be more careful. I connected the 9v battery to my Wizard battery for about 15 seconds, then tried to start up my device. If not successful I started again with 15 seconds jumpstart..
But you can find more information here in the forum: just search for jumpstart or something similar....
Regards
huibuh_!
Wizard Battery discharge completely
Thank you all for information. 9V battery method didn't work for me. Looking for AC charger online and get a link (http://www2.dustin.se/pd_5010073700.aspx). Do you think this is the right one? If yes, then I can order.
yea that's the right one but if you have a friend with a ppc or maybe a razor you can use there charger most ac adapters are starting to use mini usb just a way of saving some money even though having an ac adapter is good
could also try and get one of those usb plugs that you can plug up to a wall and plug in a usb cable into the slot
but don't take my word for this wit hmy wizard i haven't had it shut all the way day
if anybody can verify this would work
AC charger not also working
I have got the AC charger yesterday. When Connect the Ac charger first time the red light on my wizard showed for just half second then dissappear. Still let that connected for whole night but no response.
Thank you all for help.
@Keland44, most Razr chargers dont work, they MUST be at least 850mA in order for the Wizard's battery to receive anything. The older Razr chargers are sometimes as low as 350mA, but the never ones are as high as 1.2A, so you need to read the label on the charger itself to be sure.
ashasaur said:
@Keland44, most Razr chargers dont work, they MUST be at least 850mA in order for the Wizard's battery to receive anything. The older Razr chargers are sometimes as low as 350mA, but the never ones are as high as 1.2A, so you need to read the label on the charger itself to be sure.
Click to expand...
Click to collapse
Yup that is about right,
If the battery is complelty dead, then you need to original charger.
If you have got the right charger and you get a red light and it goes off. your phone might have a problem.
This happened to my last wizard after stupidly trying to dry out the screen after getting it wet which stopped the touchscreen working (i was drying it out while the phone was still on) well my wizard crashed.
Took ages to get it back on but it was very unreliable then one day, it wouldnt go on and charger done nothing. Unpluging and pluging the charger in several times got a red light on.
Sometimes i could get it to turn on, the charger would charge for about 5 minutes then the phone would die soon after.
Your phone might possibly be bricked.
Help :
I Have Same Problem with my wizard
Yesterday my wizard goes died, i think the battery out
when i came home, i use AC Charger for HTC Universal, for 1st time its red light then off,
after 15 minutes orange light, i try to turn on my wizard and works but only in boot loader 5 minutes again its going off again
until now my wizard wont turn on
some body help
Hi guys,
Suddenly facing a strange problem since last night.
My x10i was running out of charge & i connected to the comp to charge while i was working. I noticed the charging speed was extremely low, so i restarted the phone to see if it would help. Did not.
Thought there is some problem with the cable, used a different cable as well, but no use.
The slow charging had stopped and eventually the phone died.
Tried connecting to the socket & charging, still no use.
The red led blinks when i connect the phone to a charger via the usb or the socket.
needless to say the phone does not even boot up now, obviously for no charge...
any ideas wat maybe wrong or wat i could do ?
please advice
Have you tried to let it charge for some time in off mode? As long as your battery is not dead, and the phone get the right voltage through the USB connector it should charge in an "emergency mode". This is a slow way of charging, but allows for charging without any electronic circuits to monitor it, it is not the same as the charging screen that usually displays when you connect the phone while it is powered off. Usually when a phone is completely discharged it needs to be connected at least 15 min, sometimes a lot longer, before the electronics kicks in, and starts the speedcharging.
My best advise would be to connect it to the mains charger, or a USB port you KNOW supplies power. Some laptops cut down on the powersupply to the USB ports when they run on battery. Let it be connected for a long time (several hours), and then try to power it on again.
If that does not help three things can be wrong
1. Somewhere the USB connection is broken, either in the cable or in the connector on your phone (or on the PC's connector, but that is less likely).
2. The battery is dead, modern batteries contain circuits that actually disables the battery when any given parameters gets outside the defined limits. This is to prevent the battery catching fire. On some batteries this renders the battery useless, and you need a new battery.
3.) The mainboard of your phone is dead, and hence nothing works, can be ruled out if you can borrow a battery from someone to test if your phone works then.
I hope a good and long charge can sort out your problem, that is the easiest fix, and it is free.
Hi O_K,
well, i have been charging (or trying to) the phone since it died last night.
i have used different chargers & different modes of charge (through the system & the wall socket) - no joy at all.
the LED blinks red a couple of times when connected.
Very occasionally, the SONY ERICSSON logo (startup) shows on the screen & it switches off again, back to the blinking.
So charging for a long time & through different chargers has not helped.
gonna try a different battery now to see if that can help.
Thanks for your response!
well, tried switching chargers & batteries.
The problem seems to be with the charging unit on the phone (USB)
with any charger or battery, wen connected the led blinks (like wen the phone is charging), but there is no charge happening.
eventually the phone dies, even if charging
any ideas?
There is a thread some where in this forum for fixing the same problem you have...I don't remember the exact name of the thread..if I find it I'll post the link here..Anyways what the guy did was
-Pull the battery out and connect the charger till the led turns green.
-put in the battery now and charge the phone...
and I think that was it.
Hope it helped..
EDIT: Found the link.
http://forum.xda-developers.com/showthread.php?t=944322
Hi everyone.
I have the Galaxy S4 I9505, and recently when i woke up in the morning i saw that my phone had not charged, and that the battery was dead. The micro usb port had been acting weird for a while, and would only accept the charger that i had at home, but now it wouldn't even accept that one. So i replaced the charging module hardware part with a new one, but it still won't charge, turn on or react to anything. I have tried to put in a fully charged battery (charged using external charger), but the phone still won't turn on. Any clues to why this have happened? My phone was fine before this whole ordeal, besides the charging problem that is.
Regards
Stefan
When I plug charger LED blinks for a second and turns off, when I charged battery manually by putting the cables to V+ and V- for 5minutes the system booted, battery was at 20% and shows device is plugged in, but it's not charging it actually. While device stayed on cable for all night it was still 20% in the morning but as soon I disconnected it and battery went to 18% I plugged it back, after 2 hours it was still at 18%. system recognizes charger but not charging. I've also changed cable, adapter, replaced USB port and battery, but that didn't work. Now I have empty battery and it won't turn on for charging even in bootloader mode, as soon I turn recovery mode on it, device turns off and won't turn on again.
What's wrong? Is it motherboard problem and will repair cost more than new device?
Ok, seems the issue resolved when I disassebly phone completely and reassembled it, weird and a signal for phone replacement I guess.
Yesterday, my S8 said that there was moisture in the charge port. I look in there and saw that there was something in there, I tried to blow it out several times but managed wipe it out with a handkercheif. After that I swiped the notification and it didn't come back again.
At night time, I plugged my phone to the charger to see that after the phone's screen went off, it stopped charging to come back again when the phone screen turned on. It kept repeating this cycle. But when I unlocked the phone it continued to charge until the phone's screen turned off.
I changed the charger, it charged even when the screen was off. Also, it worked when I tried to use a powerbank. But when I used the packed in charger, it kept repeating the cycle.
Thinking that it might be a bug, I restarted the phone to see it's fixed.
I closed the phone to switch it on this morning. But before I switched it on I plugged the charger to see that it gave the "Drop" icon meaning that there is moisture in the port. Then I switched the phone on. The problem came back! It didn't charge when the phone's screen was off. After I tried to charge it with another charger, I plugged the original charger back. It worked even when the screen was off.
To be sure there wasn't anything stuck in the portI closed the phone, filled the port with water, waited untill its dry and plugged the charger. I stopped giving me the "Drop" icon and started charging the phone.
After that, I turned on the phone and plugged the charger. The problem was fixed!
But "was" fixed... After a while, the problem still persists.
If you can say what might be causing this, thank you!
I think, the problem cause is Fast Charge 2.0
Now I opened the Advanced Battery Options to disable the fast charging, but it turns out that is was already disabled! But wait, it says that its "Fast Charging". To enable it, I unpluged the USB-C. It enabled itself! After plugging the cable back, the problem is solved. At least for the time being.
Some interesting stuff is going on with this phone XD
I got similar problem. After connecting charger phone says fast charging blablabla and after 5 seconds charging is stopped and then after 1 second it charging again but with no fast charging. I've tyied few diferent chargers and cables also i've cleaned usb c port wiith isopropyl alcohole with no luck. Fast charging missing. Restart and switching on/off fast charging performed few times - no luck. Must be a bug in system... any ideas folks??
well i dont have does issues with my s8... but it did once happen that phone didnt want to fast charge but after repluging the cable issue was solved...i would advice u to take ur device to waranty service cuz solving problems on ur own is not acceptable and ur device shouldnt have those issues.