Hi, i bought a Droid Razr M with cracked screen to fix my bricked one. I put the motherboard from the new one and the screen and other things from the old one together. I tried to use both batteries. New combined phone works, boots up, but the problem is charging. When i plug it in charger when turned off, it looks like it started to charge, but when the screen turns off, it looks like it stopped to charge. When it boots, it looks like on the picture. Battery shows always 2% (old one) or 1% (new one). It sometimes connects to PC and ADB. The strange thing is that when I put it into fastboot, it says batteryk and it let me flash the new ROM. When booted up, there's notification "connected in factory mode" and "CommServer started"
What can I do? Is it hardware or software problem? Thanks
It's maybe hardware(?). I believe CommServer is a factory recovery tool which is also connected to CQA_Test to run diagnostics.
But the fastboot says
Code:
battery:ok
even when it's not connected to PC
Have you tried to restore factory firmware?
Yes, flashed kitkat fxz
Is there any method, how to get the real battery state? Because it doesn't discharge (from the 2%), even when unplugged.
Klen2 said:
Is there any method, how to get the real battery state? Because it doesn't discharge (from the 2%), even when unplugged.
Click to expand...
Click to collapse
Simple Battery Logger is a nice little app.
Are you able to run CQA Test?
EDIT:
Code:
adb shell
dumpsys battery
Yes. There is screen, vibrator, sensor etc. test. Battery test says connected do USB (the settings app says connected to unknown). Batery level is corresponding to system - 3%
Code:
dumpsys battery
Current Battery Service state:
AC powered: false
USB powered: true
Wireless powered: false
status: 1
health: 2
present: true
level: 3
scale: 100
voltage: 3486
current now: -2700
charge counter: -21
temperature: 286
technology: Li-ion
[email protected]:/ $
So it seems, that fastboot doesn't get the battery info properly... it's really low. Problem is, that I can't get it to charge
Klen2 said:
Code:
dumpsys battery
Current Battery Service state:
AC powered: false
USB powered: true
Wireless powered: false
status: 1
health: 2
present: true
level: 3
scale: 100
voltage: 3486
current now: -2700
charge counter: -21
temperature: 286
technology: Li-ion
[email protected]:/ $
So it seems, that fastboot doesn't get the battery info properly... it's really low. Problem is, that I can't get it to charge
Click to expand...
Click to collapse
status:1 = UNKNOWN - which leads me to believe it's a hardware problem. (Charging Port(?))
=%So it takes power from charger, but do not charge battery. Could you say, where is the broblem? I think I could go to service and let it replace.
ATTACK said:
(Charging Port(?))
Click to expand...
Click to collapse
Do you think so? Because it gets power from charger, otherwise it would be completly dead, after that all, what i have done with it (at the begginning the battery level on both batteries cca 4%, now 3% and 2%
Does both batteries have the same results? When plugged in while off does it ever go to the charging animation? Does the led stay green when plugged in while off for a moment like 30 seconds+?
Sent from my XT907 using XDA Premium 4 mobile app
ezknives said:
Does both batteries have the same results? When plugged in while off does it ever go to the charging animation? Does the led stay green when plugged in while off for a moment like 30 seconds+?
Click to expand...
Click to collapse
Both batteries have same results. It goes to charging animation, but when the screen turns off then, it stops to charge (no green led)
SO:
-it takes power from charger (otherwise the battery would be dead now)
it takes power from battery (the phone works without battery)
-BUT it doesn't charge
--Where is the problem? Are the same pins in Micro USB used for giving power directly to motherboard as to charge battery?
Are you switching the entire back piece, did you use a heat gun and remove the battery from the back or pry it out? there is two pressure contacts toward the top next to the back speaker does it appear the logic board makes good contact with them... So the led doesn't even flash not even for a second
Sent from my XT907 using XDA Premium 4 mobile app
ezknives said:
Are you switching the entire back piece, did you use a heat gun and remove the battery from the back or pry it out? there is two pressure contacts toward the top next to the back speaker does it appear the logic board makes good contact with them... So the led doesn't even flash not even for a second
Sent from my XT907 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Green led lights, but only before the screen turns on and shows charging animation. I'll have a look at the pressure contacts.
EDIT:
The pressure contects are for NFC
Yea your right I just pulled the battery off the back...I was hoping it would be like the droid 4... I'll take another look at my working one... And fully de-assemble my broken one... It seems like its getting power but its not getting to the battery
Sent from my XT907 using XDA Premium 4 mobile app
SO, do you thing that replacing USB port will fix it? Or what?
Did you pry the batteries off the backs...or anything like that that would damage the batteries... With the led lighting up before it goes to the charging animation leads me to believe the USB is ok... It may be somewhat faulty but the green led means that the phone recognized the charger, the battery is very low and needs to charge the battery some before going to the charging animation but it seams that its not letting it do that... You flashed kk to it so its getting a good enough connection for that... For me it sounds like the batteries are defective some how or maybe the logic board got damaged somehow when the prior owner broke the screen... I would let it sit on the charger while off over night for quite a while like 6-10 hours before doing anything drastic like changing the USB port... I would use the one from your brick being as you know it worked before..
Sent from my XT907 using XDA Premium 4 mobile app
So definitely no charging. I don't thing that the batteries are damaged. I thing I was able to charge them little bit with the bricked motherboard. The problem must be somewhere on new motherboard. But where? I thing it won't be easy.
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Related
Hi all,
Hi hoping someone could help, a guy at work has handed me his Defy as its not charging. Plugged it in and after the M splash screen it goes to the battery charging screen. Only problem is that just shows a massive question mark ? Anyone know what that means please? My ony thought is its not a a genuine battery so the phone is having diffaculty reading the charge level or something ?
Cheers
I can think of three reasons why the battery why the battery wont charge:
You are not using the original charger
You don't have the right battery
The battery is defect
It is easy to test point one: Just plug your phone in an USB-port of a running PC.
Otherwise you could buy an original battery, or if you know someone else with a defy, swap batteries and test...
I too had same issue, used universal battery charger for charging the battery for some time and then on its working fine.
Sent from my MB525 using XDA Premium App
And you can charge it with an USB cable and a PC?
It just happened to me two days ago. A battery pull and put back solved it. There must be something with the connections. Got me. Only happened that one time.
I too had same issue,how did you solve !?
I too had same issue in 7 mounts
I have the same problem. If I connect my defy to a pc the white LED of charging turn ON but it doesn't charge. It can boot but it turn off after the boot because have no charge!
you could also have a wrong battd!
I have one charger that charge some android phones ( old xperia and samsung) but doesn't charge my defy or a newer samsung.
Anyway, I use an original samsung charger (don't buy those cheap $1 ones) and it can charge any phone.
It's strange because the voltage written written on both is the same and so is the mini usb plug (the amps are higher on the original though).
Only the original charger that came with the phone will charge mine. Any other charger and I get errors.
Sent from my MB525 using xda app-developers app
Happened to me that the brand new battery didn't charge, just a question mark on the notification bar(I even charged via mcGyver Style). Check your connection pins on the battery between + and -. It couldn't check the battery load status. Check yours if still have the problem.
Ya are saying use a usb charger to charge our android but ya are not solving our problems for those who like the charging pads mine charges when phone is on and in sleep mode however when turned off and on the charging pad it shows the question mark on the battery symbol the phone works fine with the charging pad when in sleep mode just not when its turned off I like to just take my phone off the charger and go instead of unplugging it.
Guys, I'm hoping someone familiar with LiPo battery charging can give me some insight. I've done some diagnostics, and I'd like your take...
- Nexus 7 3G, purchased a few weeks ago. 4.2.1, not rooted, stock charger and cable
- Battery life seems good, fully charges and discharges 'normally'
- I usually charge with the device powered off (ie: blocky battery icon in the middle of the screen).
However....
- On two occasions now, I've left it on the charger for a long time (>15 hours) and have come back to a dead device.
- Pressing the power button doesn't bring up the blocky battery icon.
- Holding the power button for 30+ seconds brings the device back back.
- It has otherwise never failed to boot properly during normal use.
Out of curiosity, I was wondering if there was something wrong with the charging process causing this, so
- I plugged the stock charger into my Kill-A-Watt last night to monitor the charging current.
- Even 8 hours after the device finished charging (via the blocky icon), the current never dropped to zero - it stuck around 10mA on the AC side (ie: ~1.2W).
- My first N7 (sent back for a bad speaker and dead pixels) went to zero after charging. My iPad does the same.
QUESTION(S):
I know modern LiPo batteries have internal circuitry to prevent overcharging, but does it sound like that circuitry might be defective on mine such that I should be worried about overcharging? Could that be the reason for my lockups?
I really don't want to go through the return process again if I don't have to. I'd rather just live with it if I can prevent damage by taking it off the charger when complete. Thoughts? Opinions? Have any of you done this test, and if so, does yours go to zero?
Thanks for any insight!
developer_john said:
However....
- On two occasions now, I've left it on the charger for a long time (>15 hours) and have come back to a dead device.
- Pressing the power button doesn't bring up the blocky battery icon.
- Holding the power button for 30+ seconds brings the device back back.
- It has otherwise never failed to boot properly during normal use.
Click to expand...
Click to collapse
That might be a possible cause... Leaving any device plugged in the charger for long periods of time is not recommended. Anyway have you tried charging the tablet with another charger with a higher output? If it refuses to turn on even after holding the power button for 30 seconds you might be able to "wake" it up by using a higher output charger. Thats what I did on my Nexus 7 when the battery level went too low.
cr0wnest said:
That might be a possible cause... Leaving any device plugged in the charger for long periods of time is not recommended. Anyway have you tried charging the tablet with another charger with a higher output? If it refuses to turn on even after holding the power button for 30 seconds you might be able to "wake" it up by using a higher output charger. Thats what I did on my Nexus 7 when the battery level went too low.
Click to expand...
Click to collapse
Hmmm...everything I've read has indicated that Lithium Ion/Polymer batteries can be left on a charger without damage since they have internal circuitry to prevent overcharging (although I realize a constant topping off is probably not wise in the long run). As for a charger with a higher output, I thought the stock charger was 2.1A....I've never heard of a 3A or 4A USB charger. Can you clarify what you mean?
Also, as I said, on the two occasions it has locked up, holding the power button has brought it back, so I'm not really asking about how to get it back if it locks up - I'm asking if the behavior (locking up, charge current not dropping to 0) is indicative of a battery that has faulty overcharge protection.
Thanks though!
The "charger" IC inside the N7 not only charges the battery but at the same time powers the device - it should allow use of a N7 with no or a faulty battery. I've never looked at the standby settings on the N7 but I would suggest that is where your 1W is going. The only info about the IC I know is http://www.summitmicro.com/prod_select/summary/SMB347/SMB347.htm
Added I think this is an identical TI version of the chip http://www.ti.com/lit/ds/slusaw5a/slusaw5a.pdf
peterk-1 said:
The "charger" IC inside the N7 not only charges the battery but at the same time powers the device - it should allow use of a N7 with no or a faulty battery. I've never looked at the standby settings on the N7 but I would suggest that is where your 1W is going. The only info about the IC I know is http://www.summitmicro.com/prod_select/summary/SMB347/SMB347.htm
Added I think this is an identical TI version of the chip http://www.ti.com/lit/ds/slusaw5a/slusaw5a.pdf
Click to expand...
Click to collapse
Thanks - that's good info. However, since I have been charging with the device off, it would seem to me that it shouldn't be drawing any standby current...unless just the act of charging puts the unit in a form of standby. It also still doesn't explain why my first unit went to 0A a while after charging completed, while this one doesn't. I'm now wondering if I may be looking at roundoff error. The resolution of the kill-a-watt is .01A - which is what I'm seeing. It could just be that both units drew some current after charge completion, but this one pulls marginally more.
So, my question still stands. Does anyone familiar with LiPo technology know if this sounds like my overcharge protection circuitry is faulty? Is it normal for a device that has completed charging to draw SOME current, and if so, how much? Would someone else with a Kill-A-Watt be willing to try this and let me know what you see?
Thanks again for the help guys...
Just in case anyone is still following this thread, I have some new info. I charged my N7 last night POWERED ON.....and after charging was complete, the AC current draw went to 0A. I'm starting to wonder now whether the 1.2W constant power I saw when charging powered off is the power needed to keep the charging circuitry alive while the tablet is powered off. When the device is powered on, maybe this circuitry is running off the battery allowing the AC draw to go to 0A. I have absolutely nothing to support this, so it's just a guess/hypothesis, but at least I know my N7 is behaving the same as my first one. I also loaded Simple Battery Logger while doing my last charge and all looks normal....it charged up to about 4.208V, indicated 'full', then the voltage start dropping off - which tells me that it stopped charging. It also maintained a temp of about 23C throughout the process. I'm running a battery test right now and it doesn't seem to have been damaged by my overnight charging episodes...if anything, the battery life is better than when I first got it.
I'm going to let it go here and assume all is well. If anyone does any experiments with theirs, I'd be interested in seeing the results.
Thanks again!
I'm on the latest cm nightly,
I always let my tablet die before charging but this time something odd happened. When I would plug it in the white battery that shows its charging would come on then turn off. If I unplugged and plugged in again the exact same thing would happen.
While plugged in I would try booting up. It would get to the lock screen then power down because it had zero percent charge.
I figured out if I just kept unplugging it and plugging it in again and again after the the screen turned off while the white battery was showing it would charge some, boot and stay on charging correctly.
This is the first time this has happened....
Sent from my Nexus 7 using xda app-developers app
Sort of reading between the lines here, and I've only had my N7 for about a month now...
... but mine has never shown the battery display continuously when it is shut off but chanrging on the AC adapter. It comes on for a little while, and then shuts off - but the unit is still charging so far as I know.
Mine was sitting at 59% right now, so I shut it down, waited 30 seconds, and plugged it into the charger. The black and white screen shows up, changes once or twice, and the screen goes dark after about 13 seconds.
I don't take that to mean that it is not charging - it takes some juice to keep the screen lit, so the battery will charge faster if the screen is not lit.
I guess I usually leave it booted while charging, but I can certainly shut it off and verify that it is indeed charging without showing something on the display.
I think it is a bad idea to run your battery all the way down. Li-Polymer batteries do not exhibit memory from partial charging... but they DO have a safety circuit that disables charging if the battery voltage goes too low. You are not gaining anything by running it all the way down, but are risking the possibility that the safety circuit will flip and permanently prevent the battery from charging. (The low-voltage trip circuit is there to prevent chargers from attempting to charge a battery that has a short - that would be a fire hazard).
cheers
[ Edit ] I powered my N7 off at 50% battery, plugged it in & let it sit for 40min, and then booted it - charge now at 74%. The charging indication on the screen was only on for the first 15 sec. Dunno if you are saying something different - but I don't think the charging indication is supposed to stay continuously on while charging. Too bad the N7 doesn't have a small LED for this purpose.
bftb0 said:
Sort of reading between the lines here, and I've only had my N7 for about a month now...
... but mine has never shown the battery display continuously when it is shut off but chanrging on the AC adapter. It comes on for a little while, and then shuts off - but the unit is still charging so far as I know.
Mine was sitting at 59% right now, so I shut it down, waited 30 seconds, and plugged it into the charger. The black and white screen shows up, changes once or twice, and the screen goes dark after about 13 seconds.
I don't take that to mean that it is not charging - it takes some juice to keep the screen lit, so the battery will charge faster if the screen is not lit.
I guess I usually leave it booted while charging, but I can certainly shut it off and verify that it is indeed charging without showing something on the display.
I think it is a bad idea to run your battery all the way down. Li-Polymer batteries do not exhibit memory from partial charging... but they DO have a safety circuit that disables charging if the battery voltage goes too low. You are not gaining anything by running it all the way down, but are risking the possibility that the safety circuit will flip and permanently prevent the battery from charging. (The low-voltage trip circuit is there to prevent chargers from attempting to charge a battery that has a short - that would be a fire hazard).
cheers
Click to expand...
Click to collapse
Hm. I remember the screen always staying on when charging when powered off. But that could be just bad memory.
I still don't understand why it would power down after it booted up connected to my charger. (this is after leaving it plugged in for about 5 minutes turned off)
Sent from my EVO using xda app-developers app
All about charging Li-ion batteries. Li-ions are different than 'regular' batteries. Full changes and discharges is not the best for your battery.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Sent from my N7 using XDA Premium
Dirty AOKP 3.5 <&> m-kernel+ a35 (t11)
ezas said:
All about charging Li-ion batteries. Li-ions are different than 'regular' batteries. Full changes and discharges is not the best for your battery.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Sent from my N7 using XDA Premium
Dirty AOKP 3.5 <&> m-kernel+ a35 (t11)
Click to expand...
Click to collapse
pretty much all modern electronics don't allow a full charge or discharge.
Hello All,
I've had my razr m for a bit now, unlocked bootloader, and was running a CM 10.1 release on it for a while. I wiped it, and installed CM 10.2 nightly (10-2 build i think) - i knew i had to potential to blow up my phone. Was using the for almost 2 weeks, then I went back to my parents house and had my phone hooked up to i guess what was a cheap china wall wart with the microusb cable already built in. it got kind of hot then turned off, i unplugged my phone from the wall and put it on the floor in the garage. i tried to turn it on a couple hours later, no dice. now when i hook it up to anything (only using legit chargers and a PC that can be sacrificed) the led just stays on green, but the phone doesn't even turn on...
any advice?
tl;dr
i hooked my phone up to a cheap china wall wart after upgrading the rom and using the rom for 2 weeks.
now the phone doesn't turn on.
thanks
IMO it sounds like the battery or the charging circuit is fried... normally when the led stays on and green its telling you that the battery is completely dead and will remain that way until the charge level reaches 4-5% then it will boot to the charging screen... I would plug it into a Motorola wall charger for a half hour to an hour if after that time the phone still won't power on I'd pick get a factory cable/adaptor if that brought it to fast boot I'd flash stock and attempt to charge again...if it wouldn't charge i would find a battery somewhere...
Sent from my XT907 using xda app-developers app
i don't have a factory cable, but i do have an extra battery...
i am trying the battery now.... if that doesnt work any thing else?
i've made a factory cable, do i need to have the battery connect when using this cable?
ezknives said:
IMO it sounds like the battery or the charging circuit is fried... normally when the led stays on and green its telling you that the battery is completely dead and will remain that way until the charge level reaches 4-5% then it will boot to the charging screen... I would plug it into a Motorola wall charger for a half hour to an hour if after that time the phone still won't power on I'd pick get a factory cable/adaptor if that brought it to fast boot I'd flash stock and attempt to charge again...if it wouldn't charge i would find a battery somewhere...
Sent from my XT907 using xda app-developers app
Click to expand...
Click to collapse
I always have... I'm sure you don't need to have it connected as it bypasses it...
Sent from my XT907 using xda app-developers app
so i noticed that the LED only stays on green for like 5 to 10 minutes then turns off.
i have a second battery that when its connected the LED on the phone doesn't even turn on.
Hmmm.... can you get into fast boot mode with the factory cable you made?I'm guessing you found the walk through on how to make them did you make it correct solder points solid and getting +5v off pin 4...when plunged in (to charger) do you get a response from holding volume down and power....
Sent from my XT907 using xda app-developers app
ngdwfu
nope, doesn't even seem to turn on.... i have a 100% new battery on the way, i am going to try to replace it, there is a chance the other battery i had hanging out was bad. I also am making a new factory cable using the microB plug from sparkFun. as a note i might have my friend make a new case for the phone for me that has a removable back.
ezknives said:
Hmmm.... can you get into fast boot mode with the factory cable you made?I'm guessing you found the walk through on how to make them did you make it correct solder points solid and getting +5v off pin 4...when plunged in (to charger) do you get a response from holding volume down and power....
Sent from my XT907 using xda app-developers app
Click to expand...
Click to collapse
so i got all the goodies in and hooked up the factory cable to my phone, no love from windows (ie doesn't detect the phone)
any ideas?
i know the cable is good, i have another phone that i have check it with.
i also have a board from my old xt907 (which i broke by throwing), and when i connect the factory cable to it, windows seems to think its there.
so the board for the phone that was hooked to the cheap china charger i think is 100% dead... when i hook it up to my machine with the factory cable nothing shows up.
the other board that i have has some qualcomm usb serial port show up....
any ideas on what i can try for the dead board to try to bring it to life? there is still some data i want of the damned thing....
Hi guys my daughters Tab A 2016 has crashed, it has a black screen with a black battery and has a lighting bolt showing. I've tried resetting the tablet but nothings happened, can anyone help please
The constant empty lighting bolt means the battery isn't getting charged, and thus, it won't boot up. It is very rare that the battery is completely dead all of a sudden. Check the USB charger, cable and jack in the tablet.
I would try a new charger and cable and leave it for a few hours.
Sent from my SM-N960U using Tapatalk
ramiss said:
The constant empty lighting bolt means the battery isn't getting charged, and thus, it won't boot up. It is very rare that the battery is completely dead all of a sudden. Check the USB charger, cable and jack in the tablet.
I would try a new charger and cable and leave it for a few hours.
Sent from my SM-N960U using Tapatalk
Click to expand...
Click to collapse
I haven't heard of it in some time, but that tablet was known to have problems with the battery connector. It required taking the back off and reseating the connector.
You can try replacing the battery which will void the wanntary. If a device that are charged no matter what charger do you use, you can assume either the port is broken or the batteries is completely dead which happens with normal use after something like 5 years.