this chip is overheatng and the flashlight always turn on (drains the battery and prevent the tablet from booting) when charging, can someone help me
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i had this problem since i got the universal which is about 6
months ago, the problem is that when the battery is 100% the green led is stuck even when i remove the charger, and in the power settings "charging" wont go away, and the battey is dead in less than 3 hours on standby, i tried another ROM and another battery but its no use, is there any solution, i really need help.
thanx in advance
Have same problem... any help
Probably problem with M/B, small chip that control charging. But check the WIKI first I think I saw something about this problem.
pl chk all radios are off. I had same problem last year but in my case I was using whatever source of power such as car charger, Inverter, ect. I'm using only my laptop now. Charging Voltage can damage your batt real fast.
The charge control chip is in the battery pack, not on the mainboard. While it is possible that the OS is reporting false based on the data it receives from the chip, it is unlikely since he says he tried other ROMs as well, which would have eliminated the problem.
I would have also thought of a dying battery, but he has tried another battery without success.
My best guess is that the power routing chip is either damaged or miscalibrated, and evaluates the received data wrong, leading to excessive power drain, even in standby mode, for example by keeping WiFi powered, and not instructing the CPU to throttle down.
The "stuck" LED, however, indicates a different problem, as LED control is a separate aspect of the motherboard firmware.
I would recommend backing up everything, and using mtty to format the DOC, which should erase everything. After that, install you ROM of choice, and if the damage is not hardware-based, it should be fixed. If it is hardware based, then I'm afraid only a qualified service can help, most probably the device vendor, if the warranty is still valid.
Hi! My tablet has no battery, so I put the charger cable and lights flash, but it does it always, lights flash, all turn off and turn on again, and all process again.
I saw somewhere on internet to plugh charger without battery, wait 3 seconds and put battery again. I did that but, when I plug charger without battery it does the same (flash lights, turn off and back to flash light, appear huawei s7 on screen and turn off again). I put battery and nothing happens (still flashing and turn off)
And I can't turn on my device :S
Fault is on the battery... totally drained, and can´t start the charging process.
If you have other battery, test it and see.
If not, find and power supply, and input around 4.3v and 2.0mA... wait for the battery to have at least 3.5 or 3.8v... then I think you can start the normal charge process in the the tablet itself.
I replaced a broken screen on my HD2 recently. After I re-assembled everything and turned on power, I noticed the phone overheats and draws very large current (up to -300mA in standby and up to -800mA with screen on). When I connect it to external power, overheating gets worse and current is small positive (=40mA or so).
Software and battery are definitely not the cause of this (i swapped Roms and batteries to test this). So, it must be a hardware issue, more specifically an issue created by disassemble/assemble cycle.
Any ideas, wizards?
Hi,
I'm having a strange problem with my Tab's battery, it losses all the charge at once (screenshot attached).
When that happens the device won't turn on or charge when I plug it in, it shows a red battery sign with a yellow triangle. It stays like this for 10 to 20 minutes then starts charging, when the charging starts I can turn it on.
Has any one faced the same issue? I tried a factory reset and installing the system again, but that didn't help.
My device is P6800 (WiFi+3G) and I'm on the stock ROM.
Thanks ..
Can any one tell me if it's software or hardware related?
It sounds like the behavior of fake/counterfeit batteries that you could buy from evertop.co.uk, which gives incorrect reading during discharge and goes down immediately when out.
Of course Samsung shouldn't have bought a counterfeit battery from evertop.co.uk for you so I guess it is a quality problem with your battery, as such you should send it back to Samsung with evidence for repair.
I suggest you take action asap, as incorrect battery readings could damage your tablet. In your case sudden shutdown without proper shutdown sequence could seriously fragment your internal storage.
hey everybody
Hello everybody
what are the odds for a successful replacement for the i9100 PMIC, the MAX9887?
i mean desoldering and soldering a new one...yes i know its BGA footprint
what tools do i need?
i bought about a month ago a second hand SGS2. The buyer says everything is OK. it is, except that battery beieg extreamly drained
Two batteries of mine pass drain tests withthe lithium charger turnigy accucel 6. both batteries prooved to be 1600mAh..
In my case the battery won't last two/ three hours on flight mode, even after full charge
my (unfproffesional) observation:
I noticed that the phone gets real hot even during flight mode and normal operating (3g network, no data )
So, i thought it must be a messed up IC chip causing this. I disassembled the phone and powered it half-naked.
Traveled a bit in YouTube and wait the battery to drop. as it did, i tried to touch some of the IC chips to check the temp, i knew the heating must
Be created there somewhere. And, it did. The heating in my device comes from U501 , MAX8997.
i know this chip responsible for some power management
what are the odds its shorted? causing the device to drain massive current which empty the battery...