Hello everyone,
I have weird problem with my kaiser - it doesn't charge. I tried everything what comes to my mind, but maybe someone will have some new ideas.
When plugged in, yellow LED turns on and it says "charging" in the OS, but battery keeps loosing charge. It doesnt matter if I'm trying to charge it via stock charger or over USB. USB port on device is communicating normally - i can access phone memory or SD card from computer over USB, and I checked that "dont charge over USB" is NOT ticked.
I found Kaiser dead in the morning while on wall charger, with yellow LED on. Tried to charge over USB, same thing happens.
I then opened the device (thanks for nice guide for taking kaiser apart) and confirmed that situation is as following:
- voltage on inner contacts of usb (on the PCB side) is 4.5V
- voltage on the pcb side of the battery contacts is 0.8V when plugged in, and when yellow LED is turned on (I believe that in this situation there should be full 4.5V from USB port which i measured and confirmed that is really there on the USB)
- I tried to charge battery individually, (out of the device) and it takes charge normally and keeps it (for a 2 years old device and battery thats great)
- tried to reflash stock rom - all went well (another confirmation that usb is working), but no change, battery still wont take charge
Phone specification:
Kaiser 130 (T-mobile MDA Vario III)
Hard SPL 3.56
ROM and radio: Stock t-mobile 6.1
Battery: stock DynaPack
So it seems that im in the market for new PCB or Kaiser with broken screen or flat cable - offers on pm, please
Oh, it seems that i was able to solve what red LED means - it simply means that there is no (or either failed or inadequate) battery while USB is plugged in and should be charging - but that doesnt mean that it is main battery - there is another small backup battery on PCB. That is my observation, was unable to check it in literature or service manual if im right with that opinion, but i do hope that i helped someone with RLOD
Have a nice day,
darko
bump! anyone?
curious, havwe you tried another battery? You can get them on ebay for $5-$10. I killed my USB plug, I was able to connect with USB, but it would not charge. So I purcahsed a 3-in-1 adapter (which supports the usb plug on top ane bottom), when that finally died I purchased a cradle with extra battery charger. I just keep the spare battery it in and swap them when one dies. No charger needed.
I can help maybe. It has to do with the software. The USB connector can't be the porblem otherwise it would not see the power and let the Red LED turn on. In older devices and some of the new is a lock. It prevents you from charging the phone with a charger not made by HTC. There is a cab called Batfix.cab (Or anything like that). Try to install it. Maybe it helps. The 0.8 Volt only can be normal cause the voltage has to do with the battery. If you take it out the System won't try to charge it cause it doesn't get any power from the battery. That is done to prevent it from charging a fully dead battery cause that could harm your device and yourself cause the battery may explode.
j101399j said:
curious, havwe you tried another battery? You can get them on ebay for $5-$10. I killed my USB plug, I was able to connect with USB, but it would not charge. So I purcahsed a 3-in-1 adapter (which supports the usb plug on top ane bottom), when that finally died I purchased a cradle with extra battery charger. I just keep the spare battery it in and swap them when one dies. No charger needed.
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hi, I want to buy a non USB charger so I can plug my battery in and charge it without the phone needing to be present. What charger did you buy, can you post a link or a pic etc. thanks!
Few days ago i unlocked my phone using this method http://forum.xda-developers.com/show....php?t=2137840 , reinstalled IZS but now when i plug my phone into wall socket it shows charging slowly and it charges slowly.
It`s same cable same charger same phone same battery same socket.. so what am i doing wrong?
I already wiped data / factory reset and reflashed other roms , tryed other charger other wall socket .. nothing helps.
Someone else with this problem ?
i have that problem too.
reason was, the miniusb slot was corrupted at my phone.
i have to plug it in a specific angle.
go to settings -> Battery
plug the charger in, if it shows (USB) even while using the AC-Charger, your slot is corrupt too.
try to plugin and plugout until it shows (AC) and it should load with full power.
also custom roms may drain more battery than your stock ones, a solution would be to lower the maximum CPU Frequenzy and lower you screen brightness, because they may use more battery than the charger can load ;P
Hey guys!
My phone will charge battery only sometimes. The PC usb is not charging the battery (but it does see the usb), my ac is not charging also. I bought a new one. not charging. I tried with 3 different batteries - not charging.
It only charge sometimes when im using the galaxy s2 mini charger. But then it charge ex to 50% or 80% and it stops. I get the charging animation but the battery power drops normally like if i were using the phone.
I opened my 9000 and tried to see if the usb charger is burned or the soldering is bad. But everything is all right :/
By mistake, when i was "rebuilding my phone" i put the simcard backwards. And then even with the mini2 charger i was unable to charge more than 1%.
Do you know what can cause it? Its not the custom rom (helly bean) because i did not update it when it happened a month or so.
Thanks for any help.
Hello today i tried charging my phone using a 5 V 2Amp rail on a pcb from a monitor!.
I connected the usb and shorted the ground and Data + pins on the usb connector to start the charging.The phone was charging but the battery dropped form 70 to 69 % after this i disconected the phone and rebooted it the battery was 93%.
Then i pluged the phone to a 1.2 A charger that i was originally using (Not the charger that came with it! this was a Nokia charger) and the phone would not charge.
After a reboot i saw a meesage that one app got uninstalled.
I downloaded and flashed Carbon Rom 4.4 the one i use for about 2 months now.And tried again (i thought that would replace the uninstalled app the probably messed up the charging.).
Nothing
Then i hooked it up on the pc and it will not recognize the phone normally in fastboot or flashmode.
The plus is the phone works fine and when plug in the charger when its powered down it boots.
Thus i dont think i blew the charge controller on the device.
But it wont go into recovery after the flashing of the rom
I run Carbon Rom KK (4.4.2) Nyan kernel UBL And i haveo nly about 60% of battery left to save it.
Thank you.
News (good or bad i dont know you tell)
It seems to understand a usb stick when connected by otg but only when the usb stick is connected halfway in the otg cable.... something wrong with the connector maybe.
When I plug in usb charger device only turn on usb debugging . If I place my phone on wirless charger it says "wirless charging" and 2 sec ago it disapire without saying anything and it dont charge phone . Only possiblity to charge my phone is to use offline charging . Any1 help ? Rooted with 7.1.1 bra2 rom